Bitcoin-Mining: Was ist das und wie kann ich minen? BTC ...
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Bitcoins Mining - so geht's - CHIP
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Desktop Window Manager and Client Service Runtime Process taking up significant GPU
This is my first post here, so forgive me if I get anything wrong here. I'm vaguely aware I should share the specs of PC, so here they are: Dell Precision 5540 Mobile Workstation
15.6" UltraSharp FHD IGZO4, 1920x1080, AG, NT, w/Prem Panel Guar, 100% sRGB, Titan Gray w/ HD Camera
Intel® Core™ Processor i7-9750H, 6 Core, 12M Cache, 2.60GHz up to 4.3GHz Turbo, 45W, vPro
Nvidia Quadro T1000 w/4GB GDDR5
Intel Dual Band Wireless AX200 2x2 + Bluetooth 5.0 Driver
16GB, 1x16GB, DDR4 2666MHz Non-ECC Memory
M.2 512GB PCIe NVMe Class 40 Solid State Drive
Windows 10 Pro, version 1909
Onto the problem in more detail, Desktop Window Manager and CSRSS are acting weird, taking up huge amounts of GPU when the computer is essentially idle. It seems to die down a bit sometimes, and come back other times, and usually it happens in massive spikes where they take up 90%+ of the GPU. I thought it might be a bitcoin miner virus or something, so I followed the malware removal thread that is pinned at the top of the subreddit, but none of them found anything (note: I didn't go for the second opinion software). I've been starting to doubt that it actually is a bitcoin miner because it notably only eats my integrated graphics, not my Nvidia GPU thing, which seems weird. I know I could find out by doing a factory reset, but I very much do not want to lose my files, and have experienced plenty of issues with this computer that I would not like to relive. As such, I don't experience performance drops in software that uses the nividia, its mainly focused on software such as google chrome that uses integrated graphics. I've done some amount of googling and found that this might be a nvidia specific problem, but haven't found very many solutions. I did find something about thermal throttling that I didn't understand at all, and a partially working solution in lowering the priority of Desktop Window Manager to low. The priority solution appears to be effective most of the time at keeping it from spiking over 50%. This started a few days ago, and the only thing I can think of that happened was I downloaded some files (I wanted to put a rom hack for an old pokemon game on my wii u, so I had to get the rom file and the patcher and stuff). This is what made me think it was some sort of bitcoin miner, but now I'm just super confused. Tldr; DWM and CSRSS are taking like 90% of my integrated GPU , and I have no clue why.
Hello! I'm trying to get a (remarkably unorthodox) multi-GPU setup working with my system. In short, I'm trying to pair an Nvidia GTX 1050ti and a Quadra FX580 on the same Windows 10 system. My motherboard is a Gigabyte GA-A320M-S2H. The 1050ti is installed in the PCiE x16 slot, and the Quadro FX580 is installed in one of the PCiE 1x slots via a 1x -> 16x riser card(typically used by bitcoin miners). Windows 10 recognizes both devices in the device manager. Yes, I understand the bottlenecks, warnings, and otherwise ridiculous nature of this setup, but I just needs it for additional monitor outputs. Buying a completely new 10-series GPU or new motherboard is out of the budget(already had the Quadro FX580 on hand), and USB-based video cards are too unreliable and underperforming for what we're after. This is what we've tried so far and the results we've gotten:
With no modifications (1050ti in x16, FX580 on riser), the system defaults to the 1050ti and shows no output on the FX580.
With the 1050ti in the riser and the FX580 in the x16 slot, the FX580 shows no output and the 1050ti works without a hitch.
With ONLY the FX580 in the riser OR the x16 slot, the system works without a hitch again; the FX580 works fine.
Booting into an Ubuntu installer shows BOTH GPUs working simultaneously regardless of their slot. This highlights that it isn't a hardware problem, but likely a driver one with Windows.
Here's where things get interesting. Booting into Linux, both GPUs work with no issues, right off the bat. Booting into Windows 10 safe mode and running DDU (followed by a reboot back into safe mode) enables both GPUs, and they both work. Which suggests that Windows 10 is definitely capable of operating in this configuration. However, attempting to install either driver for either card (or even just letting Windows do so on its own) breaks the FX580 and enables only the 1050 ti, giving a "Code 43" for the FX580 in device manager. I'm completely perplexed. Drivers for the FX580 aren't important, as it's just for additional screen real estate, though being able to run the latest drivers for the 1050ti would be nice for best game performance. Is there a way to "lock" the working Microsoft Basics Display Driver to the FX580, keeping it in a working state and allowing the 1050ti to be updated? My friend did this successfully with his personal system with a 1080ti and an old ATI card and it was plug-and-play; both cards worked great and there were no driver issues, so I'm completely stumped as to why this configuration is giving me so much trouble(He is stumped on this problem as well) Any insight or help would be greatly appreciated!
First time poster, long term lurkehoarder. I am currently running an unRAID server in a typical Rosewill server chassis, supplemented by second chassis that essentially just holds additional HDD’s that are connected over an HP SAS expander card coming off an LSI 8e external SAS card in the main server chassis very similar to the builds put together on the great site www.serverbuilds.net . I’m having a problem with not being able to power the HP SAS expander card reliably using any of the several of the PCIe power risers that others are using (type Bitcoin miners used to use). I have had to resort to installing and powering an additional spare motherboard/CPU in the disk chassis that I don’t need just to ensure that my HP SAS card is reliably powered. I was searching for solutions, and randomly came across this oddity of what appears to be a SAS expander implemented in a 5.25” external bay form factor: https://www.pc-pitstop.com/arc-8028-24 This is much more expensive than I would want to spend (probably $40-60 range would be budget) and appears to have many higher end datacenter features that I don’t require, but appears to be a potential solution to my problem. If anyone knows of something in a similar form factor (or any other creative solutions to my PCI-e bus power problem) that can be had cheaply I would appreciate any suggestions or help. In case it’s relevant, main unRAID chassis is a Rosewill RSV-L4500 and supplemental disk chassis is Rosewill RSV-L4000
Weird issue with HP 24-Port SAS Expander and HP LSI SAS9200-8e
Hi guys, I'm running a HP LSI SAS9200-8e SAS Controller (FW REV 20.00.06.00) in IT mode without a BIOS in my Server. The controller is connected to two 24-port HP 487738-001 / 468406-B21 SAS-Expanders (FW REV 2.10) with a SFF-8087 to SFF-8088 cable each. I upgraded the firmware from 2.08 to 2.10 using the procedure illustrated in this ServerFault post https://serverfault.com/a/631575 which worked fine (lsscsi and sas2ircu indicate firmware version 2.10 on the expanders) The Expanders get their power from PCIe-Risers (those used by bitcoin miners), which works just fine. Each of the expanders has two SFF-8087 to SATA breakout cables, each connected to a Chieftec CMR-3141SAS 4-bay disk enclosure. Each enclosure contains three WDC WD60EFRX-68L 6TB WD-RED drives. The drives are running in an MDADM RAID5 The drives an the expanders get their power from a separate 350W PSU. Now for the issue. When I turn on the expanders and drives, smartctl tells me the drives are only running 1.5 Gb/s. a speed test with hdparm confirms this. Turning on the expanders first and then plugging in the drives makes no difference. running
Specs: 9900k gigabyte z390 gaming x 16 GB ddr4 3200 RAM corsair mp510 960 GB pcie ssd WD 512 GB pcie ssd 2080 Ti XC Ultra I have been using the corsair ssd as a boot drive for a long time (6-9 months). Recently command prompt stopped working and I tested all my hardware and scanned for viruses, found a bunch of bitcoin miners which the virus scanner deleted, but there still seemed to be a bunch of other malware or viruses that kept coming back so I decided to reinstall windows. I downloaded a new windows iso from microsoft.com and put it on a usb drive. When I went to install windows I started deleting the partitions on my boot drive so I could do a clean install. For some reason after I deleted a few partitions in the windows install menu while booted off of usb my ssd completely dissapeared as a choice to install windows on. Ever since deleting a few partitions it no longer shows up in bios, on my other computer, in windows when booted off of another drive, etc.... I have a lot of experience installing drives and troubleshooting them but I'm not used to them completely being unrecognizable like this? I guess the drive spontaneously died during the partition deletion operation?
I' ve been watching Monero concentrate hashpower and seeing the news reports on BotNets... Here's an idea.
I'm generally a Bitcoin guy, but I am outspoken on saying that PoW is all wrong and ASIC concentration has turned Bitcoin's miners into a functioning Cartel. I've always liked Monero too, basically because of the uncompromising focus on fungibility and privacy. Recently, however, I was annoyed to find an Opera browser window maxed my 8 processor Xeon system and learned it was a browser instance of unauthorized Monero mining. This led me to read some articles about botnets becoming a problem. That in turn lead me to look at your mining pools and see some concentration developing to the point where its a no-go, statistically, for individual users to CPU mine your crypto anymore. So here's my idea for your dev teams. I admit by the way that its what I am looking to see happen some day on bitcoin, so take that for whatever its worth. Still, the innovation of your PoW is that instead of being CPU bound, it creates a memory scratch pad that is more efficient to store than recreate for each hash and then calls a bunch of operations related to the scratch with dependent branches etc., with the result that its memory bound. One tweak would get you back out of GPU mining, and eliminate botnet and unauthorized web mining all at a single stroke. You would be back to 1 user CPU one vote: Add an XOR transform to the scratch pad (at the point after it is fully populated, right before the memory hard parts of Cryptonight) that is based on a mask determined by data from the block-chain. The location of the data would be mapped by the A and B values used by Cryptonight as determined right before the memory hard function. Basically the A and B numbers can be made into a function that specifies a specific block or range of blocks to read and use data looked up from the chain to create a msk for a transform of the scratch just before the memory hard loop function iterations. Basically this would add a requirement that to mine Monero, each instance of the mining process would need continuous fast access to storage of the entire block-chain. This would favor CPU based commodity machines with fast SSD drives. It would work with GPU mining, but adding too many GPUs would cause the speed to be rate limited by drive interface speed. You could use an SSD that plugs directly into PCIe, but at the expense of that kind of device. Making it more expensive to obtain lopsided hash power, you see. Now, sure, machines could CURRENTLY keep the entire block chain in RAM if you're talking a 64GB system for example, but again, it would not be long before adding mining instances would swamp the bus based on the number of blockchain data lookups. And ordinary growth of the blockchain would require further investments if that strategy (chain in ram) were to be adopted. Bonus: This would kill botnets because some random internet user will not have the blockchain, and botnets requesting the chain from other nodes could be blacklisted. IoT devices would not even be able to store the block chain. I suppose they could program their java miner code to fetch the information for the transform of the scratch required for each hash over the internet, but with internet latency the hash rate would be so low as to be useless and infeasible. For regular validation purposes, there would be one additional database fetch for the transform when validating blocks (i.e., that lookup from the blockchain and resulting scratch transform), but the real impact is that mining hash rate would go way down in terms of absolute hashes per second - although the input, output, memory and disk access reads would represent higher work per hash, with the valuable proof of blockchain storage addition. Cheers!
A heads up to those wanting to use PCIe splitters/switches.
Well, after 129 miner restarts in SMOS I've finally gotten my 8 GPU rig mining stable for 16 hours straight. I'm using Supermicro boards in my operation to have IPMI and limit having to move rigs or monitors around to troubleshoot. Once the kinks are worked out its great! Anyways my board only has 7 PCIe slots so I've been experimenting with splitters to get me to 8 cards. Its been a long road. I started with a couple of those x1 into 4 USB cards which kinda worked if I was running less than 6 total GPUs and no more than 2 cards on each splitter. They are funky. I could run 4 on the board and 2 on the splitter for days but if I added 2 more to the board I had constant crashes. I spent an immense amount of time messing with the PCI gen, MCFG setting (base address for PCI devices) with mixed results. Finally as I gave up yesterday and put 2 cards back in another rig my x16 to 8 USB splitter finally arrived! I threw it in and hooked up 6 GPUs to it and I'll be damned it ran for 30 minutes no problem. I said screw it and grabbed 2 more cards again and had some rejected shares. Switched the slot back to PCI Gen2 and what do you know. Haven't had to reboot yet. Obviously its known your mileage will vary using splitters like this. It won't magically make a 20 year old motherboard support more cards. But if you have a modern-ish board that doesn't have enough slots it may be the ticket. I know people have had luck with those 4 GPU splitters I'm still not sure why they were so unstable for me but hey this works. Only needing one x16 slot to run cards I may just opt for a dual CPU board and do some CPU mining as well if a new CPU only algorithm triumphs over Cryptonight. x1 switch - https://www.amazon.com/LinkStyle-Extender-BitcoinLitecoin-Adapter-Ethereum/dp/B078YQMF7F/ref=sr_1_15?s=electronics&ie=UTF8&qid=1521395139&sr=1-15&keywords=x1+to+4+mining+riser x16 switch - https://www.amazon.com/Motherboard-Express-Graphics-Adapter-Machine/dp/B07571T721
With the new all time high Bitcoin price, there's bound to be lots of people asking for mining advice. First, you need ASIC mining machines to mine Bitcoin. You can't mine it directly with a GPU. There's services that let you mine alt coins and convert that to BTC, but this advice below is if you want to mine Bitcoin directly. On average, the two best in class miners as of this post are the Canaan Avalon 741 and the Bitmain S9. Second, mining requires lots of consideration. The 741 costs $800(US) and produces 7 TH/s at 1200 watts (~29 kWh of power.) The S9 costs $1500(US) and produces 14 th/s at 1500 watts (~36 kWh of power.) Both will require PCIe cables and power supplies, which are an addition $100-$150 or so. Neither will be in stock for the rest of the year, so if you want them NOW, you'll have to pay a larger mark up on eBay or to a person selling them. Those watts translate almost 100% into heat, so the more miners you have, the more heat you'll have to deal with (either exhausting/venting it, or using active cooling like AC) Each miner is a little bit bigger than a shoe box, so you'll need racks to store them - and they're pretty loud, putting out about the sound of a vacuum cleaner. Many people use a separate space to store them - whether its their garage, a shed they've built/modified, or a warehouse. The S9 can be unreliable, and while under warranty, your only option is to ship it back to China for them to repair it, which takes weeks at least, months at most. The Avalon is a little more reliable, but less overall hash rate. Finally, the difficulty increases every 2016 blocks, or roughly two weeks. This means your miners get less effective all the time. Eventually, new miners come out to replace them, so you're hoping you've made enough coin to pay for those so you can keep up.
EDIT: Got things mixed up, I was reading the components for a BTC mining rig! Now my question would be: What would be decent, but cheap components for a mining rig, built around 2x HD 5770? Stupid idea? Share your wisdom! Hey guys, nice job on the subreddit! I've been thinking about building a rig for a while now, but started actually doing some research just today. Now I'm wondering what a decent but cheap motherboard would be for:
Power Supply Rosewill Green Series RG530-S12 530W, 80 PLUS Certified
Motherboard ASRock 890GX EXTREME4
CPU AMD Sempron 145
Memory 2GB DDR3
Storage Western Digital Caviar 80GB
All suggestions are welcome, I'm exited to start building/mining! Edit: I should say I'm quite unfamiliar with computer parts in general, so if you have any tips on replacing other components in that list for cheapeother ones, or know a complete different, better rig, please say so.
Estimating the marginal cost of a transaction on the Bitcoin (Cash) network
Recently, the mempool has not been clearing with every block found. Should we immediately raise the block-size? Perhaps put plans to make the easy relay of sub satoshi/byte transaction on hold? Assumptions:
The marginal cost is made up of: hard-drive space (replicated world-wide), bandwidth relaying (also world wide -- partial fixed cost?)
Expanding the UTXO set incurs a further penalty, based on the price of RAM.
Mature network needs about 1000 mining nodes world-wide. Further, these mining nodes avoid the "tragedy of the commons" problem by charging a proportionally higher fee if they are less likely to get a block.
The following are fixed costs: Hashing equipment and maintenance, Space rental, electric, cooling, staff, etc.
I will neglect the CPU time required to validate a transaction since I have no good way to estimate that.
Assuming 1 CAD is 80 cents USD
Based on this discussion thread I am going to assume 8GB blocks to approximate the limit as the number of transactions go to infinity. Note: Chassis I chose only supports 300TB after parity.
Step 1: find the price of storing a transaction Searching NCIX:
As you can see. miners have a strong incentive to offer free UTXO consolidation transactions: and require bulk UTXO fanning transaction to pay a fee of 494.86sat/kB -- about 0.5 sat/byte. ((0.01249USD/kB)/(2523.96USD/BCH)*100,000,000sat/BCH) Fees are no where near that high due to the block subsidy. For an 8MB block: 1,250,000,000 satoshies/ 8000 kB -> 156,250sat/kB; or more conventionally: 157satosies/byte.. Note that the block subsidy per kB goes down with larger block-sizes. Step 2: Estimate Bandwidth costs Disclaimer: I am not too familiar with commercial bandwidth plans
According to slide 19 on this PDF document, you should be able to get IP transit for less than $10/Mbps in major cities (10GB-ethernet pricing).
Let's assume you budget 1Gbps of IP transit for your full node. You are also sharing with at least 8 peers. -> $10,000 USD/month
8GB blocks work out to 34.560TB/month x8 -> 276TB/month
That implies a utilization of: 64GB/600s*10bits/byte -> 1.066 Gbps -> we need a 10Gbps connection.
Cost Per kB: ($100,000/month)/(34.560TB/month)/(1,000,000,000kB/TB) -> 2.89 microdollars/kB (rounding error, unless I messed up the math)
Edit: If we assume the miners average their costs (like earlier) x1000: 2.89Mills/kB (57x the storage costs)
Exercise to the reader: Re-do these calculations for hobbyist hardware and internet connections. You probably have to assume a smaller block size: such as 100MB. Disclaimer: I later learned the site I was using for prices (NCIX) was bankrupt. Not sure how much that would skew prices.
Hello, I have a question about whether anyone here has experience using "mining rig" style designs for building deep learning boxes. Currently, we are building machines similar to the design guide NVIDIA put out a few years ago (aka the "devbox"), and invariably they end up being hot, loud, or both. Quietest and coolest version so far involves a blower fan from home depot. Not exactly ideal. Recently I saw a bitcoin-type mining rig (I have no idea what coin specifically it was mining) which looked very good. It was open air, quiet, and had cards packed well. I've done a bit of research, and apparently the miners are only using x1 PCIe connections to their motherboards (which makes sense given the low data rates), but does something similar exist which could be used for deep learning? I don't want to keep buying basement blower fans to cool computers if all that is needed is a better chassis.
New to mining, just discovered this Reddit. Rig ok?
TL;DR: look at my component list, is it ok? Or did I butcher it? So after a few years of trading through exchanges (coinbase) and making a bit of cash from latest Bitcoin surge (not much, like others I sold thinking it would tank again, but hey, it's cash I didn't have before). I decided to make jump to mining. Never really use Reddit. So never knew there were communities on here for it. Read reviews, guides, and forums elsewhere, and came up with / bought hardware for a rig. Plan on having it up and running before New year. Just wanted to check with some experts if I did ok, or if I made some bad choices. Open to suggestions and advice. Thanks in advance! CPU : Intel CPU BX80662G3900 Celeron G390 MoBo: Biostar Motherboard TB250-BTC 1151 Risers (6 pack to have spares and room to expand) : Mailiya 6-Pack PCIe Dual Chip PCI-E 16x to 1x Powered Riser Adapter Card w/ 60cm USB 3.0 RAM (from what I understand 4gb will be plenty, I'm going to try my hand at Linux, but if that doesn't work out I have a win7 license I can use): Ballistix Sport LT 4GB Single DDR4 2666 PSU: EVGA SuperNOVA 1200 P2 80+ PLATINUM I also already have some other equipment I plan on utilizing, a couple push buttons for power, a power usage monitor I have had for bit, but will work for this purpose. I also have an unused 120gb SSD that should work just fine, And I managed to snag an open air frame that someone must have given to a pawn shop, I found it there and recognized what it was, even though they had it labeled as a "server rack" technically true I guess) it came complete NiB for 100$ and retails for 160$ on Amazon, I was going to use an old tower I had laying around, but figured this was worth investment, it's a: Veddha 6 GPU Minercase V3C Aluminum Finally, the bread and butter, 3 identical GPUs, brand new (I had an option for used, but got these brand new from a few different sources): ZOTAC GeForce GTX 1060 AMP Edition, ZT-P10600B-10M, 6GB GDDR5 All in all, including things I've bought previously and are still serviceable, this set me back about $1600 The goal was to have a rig I can not only expand, but one I will be able to swap out cards into / out of to upgrade without changing much else. Like any other miner I dont expect to strike it rich, but averaging a few hundred a month after power costs would be nice. I did some research and am thinking I can get my RoI in about 6 months. Before system is up and running I plan on researching more about pools (the guide here is great!) And picking some coins to go after other than Eth. I'd appreciate any other tips. Thanks for sticking around all! So will it work? Or did I butcher it?
Selling parts of my mining assets. 20 miners total, 6x GPUs per miner. All miners are enclosed in 4RU 19-inch server cases for telecom racks. - 10x miners with Sapphire RX 480 Nitro and Nitro+ GPUs, 30x 8Gb with Samsung RAM, 30x with 4Gb RAM (Hynix, Elpida, Samsung). GPU BIOS patched, undervolted, been mining Ethereum. - 10x miners with Sapphire R9 Fury 4Gb GPUs. GPU BIOS patched, undervolted, been mining zCash and XMR All miners are recently cleaned and air-blown though still have some dust. 20x 6xPCIE motherboards with Celeron G1840 CPU and 4G of RAM and 16Gb SSD drives: 14x Biostar TB85 mobos, Other 6 mobos are Asrock z97x KilleH81, MSI Gaming 5/G45. TB85 sets purchased from GPUshack.com with Ethos licenses. R9 rigs have 2 PSUs, both are 1000W ButterflyLabs ProMiner Gold 80 PSUs. RX480 rigs have 1x 1200W ButterflyLabs ProMiner Gold 80 PSU. Each miner is equipped with 3x 120mm 150cfm fans for cooling. R9 cases are better than RX480 boxes: can fit 2 PSUs. Also 4x R9 miner cases are from Greymatter, bought at $500 each. Assembly of all miners has been performed by my hosting provider: not perfect but functional. Bonus: 1x APC 7998 network-enabled 12.5kW rack PDU. Pick up from the Dalles, OR (85 miles from Portland, OR). Miners are still with my hosting service provider there, hence no timestamps on pics. Selling everything for $20k. Cash preferred but other options will be considered. Parting out will be considered if no interest for complete set. Pics of miners: https://imgur.com/a/pclfAgkhttps://imgur.com/a/AVvJjSshttps://imgur.com/a/QPE1W2Ohttps://imgur.com/a/YtvQkYD Ethos panel: https://imgur.com/a/R3UEucm BitcoinTalk Link to Contact
IBM 2880W PSU/Breakout Boards - *NEW* Package deals for T9/S9 & A7
Please see here for IBM 4K PSU packages: https://bitcointalk.org/index.php?topic=1308296 Please see here for GPU rig powering packages with all adapters necessary to run rigs off these PSU's! https://bitcointalk.org/index.php?topic=1864539 NEW - PACKAGE DEALS The "Get Me Going" Package (Tell the wife her dryer now runs on 12V and has blinking lights and loud fans) Simply add a C19 cable. - 1x 2880W PSU - 1x Breakout board - 10x 24" PCIe cables The "Double A (AntmineAvalon)" Package Enough to power 2x Antminer S9's for as cheap as possible - 1x 2880W PSU - 1x Breakout board - 20x 24" PCIe cables - 1x C19 power cable of choice (see below for stock) The "Royale With Cheese" Package (Perfect to run 2x Antminer S9's, mixing and matching lengths for flexibility and value.) - 1x 2880W PSU - 1x Breakout board - 11x 24" PCIe cables - 11x 36" Deluxe PCIe cables - 1x C19 power cable of choice (see below for stock) The "Pimp Daddy" Package (Add a 50A circuit and go big, with PDU included for clean, simple & safe install) - 3x 2880W PSU - 3x Breakout boards - 1x 40A 4-port PDU with breakers for each circuit - 30x 24" PCIe cables - 30x 36" Deluxe PCIe cables - 3x C19 power cables of choice (see below for stock) Boards and cables ship from Canada, PSU's ship domestically in the US to save on shipping and any potential duty/taxes at the border. Individual pricing Note: Bulk pricing is available, please contact me. Board price - $65 each. PSU (Refurbished) - IN STOCK. Includes ground shipping within the US. I can supply PCI cables in two different configurations: -36" Deluxe, high quality 16awg made in USA- $4.50 each (IN STOCK) -24" standard 16 AWG cables - $2.50 each (IN STOCK) C19 to C20 cable (14awg, 1.6M) - $12 each C19 to NEMA 5-15P cable (14awg, 1.6M) - $12 each C19 to NEMA 6-20P (12awg, 1.6M) - $12 each 40A continuous-rated PDU (requires 50A circuit): $120 24A continuous-rated PDU (requires 30A circuit): $60 60A 3-Phase Delta current-monitored PDU with remote access: $350 LEASING CONTRACTS I have started to offer leasing packages for use in approved Data Centre/Co-locations. This can be beneficial for many reasons: -Less upfront capital required, allowing more to be spent on additional mining hardware which can offset much or all of the cost of the lease -Limits risk and cost of equipment failure, and associated down time due to failures -Saves shipping costs for heavy PSU's to and from hosting location for duration of your contract -No equipment depreciation -Helps eliminate ownership problems associated with Group Buys, when more than 1 member shares purchase price of PSU to host together -All maintenance, replacement, shipping, setup, and lost revenue from down-time due to PSU failure is my responsibility Please contact me for details. Shipping Shipping will be calculated individually, to make sure you are getting the best rate. All prices are in USD. I am willing to accept escrow through OGNasty, and can also do Paypal but buyer will be responsible for covering costs of either services (4% added to paypal, OG charges 1% for escrow). Each package of PSU, breakout board & 10x PCI cables is approximately 16 lbs. The BTC address for all non-escrow breakout board orders is here: 1GWQYCv22cAikgTgT1zFuAmsJ9fFqq9TXf I will not PM you asking for payments to any other address, so beware of F1nksy, Fink5y, or whatever scammy names might pop up. Original Post: Hi everyone, I am the official North American distributor of Break-out boards for the IBM 2880W Bladecenter H PSU's, which are 80+ platinum rated (94%+ efficient) Edit: UN-VERIFIED AT THIS POINT and have provision for 22x PCI-E cables. Unlike other server boards, these don't rely on screw-down terminals and bare wires which can get loose and spark causing fire hazards, and limit the exposure of live contacts to surfaces above and below the PSU. Instead these use a double-sided PCI 6 pin cable, which only cost about $0.10 more than the standard PCI-6 to bare wire versions. Also, unlike the DPS-2000BB -which is the next largest server PSU available for miners- these have fans already built-in, so don't need extra work to set up up and deploy. The PSU's themselves are available on e-bay and elsewhere (I sell them as well), and the boards will be priced at US $70 $65 each (better pricing for bulk purchase, volume structure will be the same as J4bberwock's). Each PSU can handle 2x Antminer S7's, 3x SP20's, 5 Antminer S5's, or 8 Antminer S3's. You won't find better value for power, and there are very few ATX-based PSU's that provide 80+ platinum efficiency (and none for under $200 for even 700-800 watts). Edit: UN-VERIFIED AT THIS POINT Lastly, unlike ATX-based PSU's, these can be run at (and I have found even over) their rated power, as they were designed that way for server use. They do, however, require 240V input. Also, running these over at over 90% load will give you slightly decreased efficiency, and could affect their reliability. I have personally taken 3x SP20's to settings around 960 watts (at ports, not at wall) each for approximately 2 weeks, and the PSU drew 13.41 amps (@ 235 volts - 3150 watts @ wall). So at absolute full load (or possibly over), these will still hold over 90% efficiency. Very impressive, and I will be testing different fans to reduce sound for home mining (fans on these PSU's are slightly louder & higher pitched than SP20 fans). Sloopy informed me that he ran 11x Antminer S3's on a PSU for a while (over 3,300W DC!), but that is certainly not recommended, and will eventually cause the PSU to fail. It is simply a testament to how tough these PSU's truly are, and that spikes over their rated output shouldn't affect performance. Here are some pictures: Feel free to contact the developer of these boards if you have any concerns, he will verify that I am authorized to sell these. https://bitcointalk.org/index.php?action=profile;u=206446 Here is the spec sheet with efficiency rating: http://www-03.ibm.com/systems/bladecentehardware/chassis/bladeh/ Thank you for your time, Finksy J'observe qu'il y a plusieurs Québécois sur se forum. Mon Francais est au niveau primaire mais je peux communiquer sans probleme. Me gusta mucho aprender español, y tengo un conocimiento muy básico (con traductores). Pruebame, si eres paciente Here is my PGP key for anyone wishing to send their personal information encrypted: Code:-----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v2 mQENBFTl/j4BCADw0a0fUisOWh16Yl1/SC8p2vcGoGgV4MwxeaLSoLRdT2437E51 kd5giYj6Ki8ByNTunXBRr01yXplxL1Pp3yTo/GFmNqEm3XwIaq+rRRP6EIKb3U6Y SWSXfeck8J3+HJXrcCEdBA+Hp+ey8Mjg3/eb1ILMld+WKJPPDCQNKK3GJEp7DLtH Rtybq0BCsXou90KxHr37k0MQJY6u6zsM5yl0gpK5dVqZvIOfX+5MGb2hsfilU2cF 9ZJQt72LCwkdcxgRxBGYT6qVZtOoFe5RwI9nxGGRrlsCxG9vAf9sVUxSiY03najM r7qM8hQPGMtn79SLnkkQM4gt7suy3w1SJm6BABEBAAG0G0ZpbmtzeSA8cmZpbmtz NjlAZ21haWwuY29tPokBOQQTAQIAIwUCVOX+PgIbAwcLCQgHAwIBBhUIAgkKCwQW AgMBAh4BAheAAAoJEGhX1pvgBfqVKDEIAJA7ashSYaVUS/HUKB1F2nYEYtf2PlHn EvluHzsrND0XdMkKEI/vavZ4UHfAdFISmFhickLeLwvSI3TotVDtYd7dDkwT3rIs +QJCXMIRDFnyCge7o9DH4HwSWq8tQ+6xsPXBdJANR9kG+RtipatqJv3Yt8wEzYwu ECnkBnpu1rxhMgYGJhgaVNyhAEPKVUPfsFBTEpkQ9YppPFZp99Ahdk8pQoAUBKzQ +++oW7ju3OWBpRluPIWYvYvdfG+d29dAq5iQJBIdm/RCDxw0hidMeOxOqTpi0g55 W+XY5+DrKSnOpHy+LvC0Uss0xGZ0f/pmEDiNuZbJ96ZEL1rYefgfDKO5AQ0EVOX+ PgEIALZgnlkXFcm0jnEY33LWBDkpIihbMM8XAauwi3gS9G/GzqBG+ETq14g2AyW9 6O1TrVFm2Ue/KiT+sl4iekkcRCbjYgkr9eG82l56YazbSRoH84aX3KBx95BMAY96 O2IE52fySYaqj1SBRSgVJSCh1A6Wami/zQhqdND6tk92af4VmSKyR1yWOKqbE/v9 0uPJ+VWA/0CipSUVJS6GZmSfPCeHVTg3YGR2dzRploXl4qrB5leHvOmj2VwW2bzF 6YZKut5uqREJ2euchpyPMg8EMC9QOXPAZxDQMUJAIxTQviShsakGbFd2SrUaKPz/ Sk3Qj1S6ZE9ZgbxMyB9bGMWMa68AEQEAAYkBHwQYAQIACQUCVOX+PgIbDAAKCRBo V9ab4AX6lYqnCACPHiLN8OEyD320N107l2dywIopCBa7ZfTBXPJ5syRuMcyBOXXT 2hZy7YpWr6IrV3foOUNF3rD1ECerj7oYhx7hgkTJe7rM3+mhONZM6beXzgFG+HO3 FCiUz/thif0zkJTAjygmAB1KHNH+0AIcdRsD46N1MsPp5YeN0geF1LE50+4gvtwf W412vGqA5bYwJ8a71Gp8SAR4YWuXKt0FKSp7iCF91pSunbY7VbaqxR0H7LkaKRVZ 9m30OK7Osu396FwYxBIX1UDLMjgfMATYvkzXYvRpPAnStJGmVB/YvcX+9sQeRQE1 BKAtkyAGpzKQZ0TFd94jgevGONQ336QqHF =mRrl -----END PGP PUBLIC KEY BLOCK----- I will honour a 10-day return/exchange for PSU's or Boards that are DOA. However, these PSU's are used and although I try to briefly load test them all before sending them out, it is impossible to predict failures. As such, no warranty will be offered beyond what was previously mentioned. If you are looking for more peace of mind, please feel free to source PSU's yourself either new or used. BitcoinTalk Link to Contact
Power supply questions for SAPPHIRE Vega 56 build.
I am planning a 5 GPU SAPPHIRE Vega 56 build and i was wondering if any of you guys can recommend a power supply combo to power those gpu`s. The 3 x 8 pin pcie make it a bit of a pain in the ass but at the moment these are the only vega cards available in my country. Now my question is how do i power these cards safely? Is it safe to use a pcie adapter 6 pin to dual 8 pin? Single psu or dual? which brand do you recommend? Are these cheap ali express psu any good are a a waste of money? How much power do the risers draw from the vega 56? My max calculations so far (correct me if im wrong please) Sapphire Vega 56 (200w each) x 5 = 1000w Mobo, CPU etc - 250w Risers (75w each) x 5 - 375w Total: 1625w I was planning on running a 1000w and a 850w psu, is that enough headroom for spikes or do i need more? is this information correct? 8 pin pcie - 150w per rail 6 pin pcie - 75w per rail Molex - 40w per connector Sata 40w per connector I was reading that the 8 pin pcie can draw 350w from the connector plugged in the psu and 150w from the 6+2 connector, if thats the case can each 8 pin rail handle 350w? How much can 6 pin rails handle? ( a bit confused there) thanks for reading my long msg and thanks for helping.
05-19 11:13 - 'How bad is mining for my GPU at this rate?' (self.Bitcoin) by /u/Niksonrex removed from /r/Bitcoin within 2043-2053min
''' Im using an asus strix gtx 1050 2gb with 2 fans and it needs a pcie to run. Anyway i downloaded nicehash miner and turned it on. It says im gonna be making around 0.60USD a day which is fine cause its better than fking nothing and im not paying my bills so whatever. Anyway the gpu i sitting at 60°C and the fan is spinning at 52% speed. I dont want to fry the gpu or anything. Now what id like to know is how bad is this for my gpu. Like im planning to do it once a week or twice a week cause im a gamer and if the gpu dies its gonna be bad. So just leave your recommendations below. Id atleast want the gpu to live 2 more years because its pretty new. ''' How bad is mining for my GPU at this rate? Go1dfish undelete link unreddit undelete link Author: Niksonrex
Hey guys, I have 7 furies I am looking to unload so I can upgrade to more hosted miners. I know the market out there is crazy right now and prices are all over the place. I'd like to offer the following:
7x furies that have been running between June 9th and July 9th.
2x PCIE to Barrel connections (3 each) (this is the best way to run them) These bad boys cost $25 new from GAW.
If interested, I will provide the 2 glossy GAW boxes from my week 2 miners. Same place that made the iPod boxes.
Asking price is $300 $250 (Priced to sell!) for the whole kit and kaboodle including shipping (UPS Ground). If you want priority USPS shipping, I can price that for you but you pay for it. If interested, I'd also sell my zen controller for $50 (still $70 on GAW). For those lazy at math, the price per Fury comes in at under $43 per unit, shipped. These are selling for $45-50 on Ebay right now with an additional $12.75 in shipping. GAW has them at $60 + $6-$10 shipping for new units. I have this offer up on other areas, but to be honest, I should have started here. I believe in the DDF and dogecoin got me into mining. I HODL several million in doge and am a shibe through and through (don't make me post a pic of my dogecoin shirt!) This is a great bundle for a shibe looking to get into mining at a reasonable cost. With the zen controller, it's really plug and play. 9.3 MH/s in 15 minutes. My favorite pool (and yes, I have been buying doge with my proceeds!) http://i.imgur.com/wOXjj5W.png?1 Not a bad opportunity to have a cheap GB for the DDF if one person were to host them on an existing PC or unused PSU. All 7 would draw between 280-350 watts when run on a good PSU. I have a 500+ watt psu if someone wants to make an offer with the bundle. OCZ platinum. Will sell it CHEAP! I will accept dogecoin and bitcoin. You're all my last stop (should have been my first stop) before heading to ebay.
So i was looking to upgrade my mining rig from 4x1060's to 6 or more 1060's. I browsed this reddit, read the wiki, talked to some people, and they said that the Prime Z270-P is the way to go. So i bought a openbox one on Newegg (paid with Bitcoin, of course). I also ordered "The Unique Rig" which is a great, cheap case for mining rigs that i found on ebay. I was gone for a few days, and when i came back, both the case and the motherboard had arrived. I built the case, switched everything over to the new motherboard and turned it on. Since i use Nvidia cards, i usually use cyclenerds OS, but i heard good things about ethOS, so i bought it. ethOS worked straight out of the box, but i was only getting 19MH/s with the cards. I tried every overclock setting i could think of, and most of the time it actually brought my hashing speed down, not up, and never did it get above 20MH/s with my cards. With cyclenerds i easily get 21MH/s, and if i want to push my cards i can get 23, maybe 24. I formatted my flash drive and installed cyclenerds OS. I started the computer and i get a PCIe Bus error. I tried installing Ubuntu Server edition and same result. Its due to the BIOS having SecureBoot on, and with that motherboard there is no way to turn it off (that i could find). It fixable, but i have to type a option to ubuntu's grub everytime the computer restarts. That was just not feasible for me. Since i was using a USB flash drive as a hard drive, i couldn't install Windows. So i went back to my B250 Pro4 - which i after realized i can get 6 GPU's hooked up (8 maybe if i use the M.2 ports). Everything is working fine on that motherboard, and im selling the Z270 (look on /hardwareswap if you are interested).
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