GPU Mining Monthly Simple Questions Thread - September 2019

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• Monthly Simple Questions Thread - September 2019
• Ethereum Mining Farm update, (3-Month post-purchase of 150+ GPUs)
• GPUs used for mining vs GPUs used for gaming only.
• AMD GPU FLASHING PROBLEM (Need fix please help me)
• Safety data sheet of GPUs

Monthly Simple Questions Thread - September 2019 Posted: 01 Sep 2019 02:10 PM PDT Thanks to /r/buildapc, we're stealing this periodic thread idea! Thanks guys! This thread is for simple questions that don't warrant their own thread (although we strongly suggest checking the sidebar and searching before posting!). Examples of questions: What should I mine? Is this build good enough to mine? Which PSU should I get for _____ GPUs? Important: Downvotes are strongly discouraged in this thread. Sorting by new is strongly encouraged. Please remember that we're here to HELP you, not do it for you. Have a question about the subreddit or otherwise for /r/gpumining mods? We welcome your mod mail! Many questions/concerns already answered in our sub's WIKI: https://www.reddit.com/r/gpumining/wiki/index Previous Monthly "Simple Questions" Threads: Here submitted by /u/AutoModerator [link] [comments]

Ethereum Mining Farm update, (3-Month post-purchase of 150+ GPUs) Posted: 02 Sep 2019 08:14 AM PDT Hello all! Some months back I created a fairly hot topic, buying 150+ GPUs for ethereum Mining. It was mixed reactions from the community, I'm here doing a short follow up now that we hit Sept! 200+ GPU Mining Farm Setup! Currently Running 140 RX 470 4GB Sapphire NITRO+ 40 P104-100's 37 GTX1660ti's (24 I just acquired last week!) My Ethereum hashrate currently at 7.2Gh/s (this includes some of my personal gaming rigs) https://ethermine.org/miners/531E893595875098c10994dF91edF6D886aF6B63/dashboard I started this Adventure mid-June How much I have mined since then? 29.55 Ethereum At current prices worth $5,000. My Electric Bill For June-july was $900 and once fully operational for July-Aug was $1888 For 19Kw. Putting my Electric at .096C/Kw. This will increase to about .10C/Kw due to how PPL has different distributors of power at varying rates. Current rate is at .052C/kw ​ https://i.redd.it/n3fs37xcv6k31.png My Initial investment was $15,000 worth of GPUs. The rest of the equipment I already owned/paid off during 2017/2018. The 20 GTX1660ti's I added on were my friends who decided to get out mining. These were purchased for 4K. with 5 more bought from amazon for $1000(Yes, 200 a piece they were a firesale I caught on amazonwarehouse deals) Bring my total investment now to $20,000. to Date I have not sold any of my mined Ethereum, instead HODLing it. Using my job to pay the electric bill as much as possible. Taking in the Electric bill for 2 months (900+1,888=2,788) and what I've mined 29.5 Ethereum(Worth 5K at $172 per 9/2/19) I've Netted $2212 in income putting me about 20,000-2,122= $17,879. Doesn't seem like much, but it's been about 9 weeks. Honestly because of the crashes, down time with rigs being offline for hours, along with initial setup time of 1-month, I've had 2-3 weeks of continual mining with minimal crashes. Additionally price has deflated. Ethereum was reaching new 2019 ATH. We've settled back down, yet Difficulty increased about 2.2T from 1.9T when i started. My Strategy still stands. HODL as much mined Ethereum as possible and wait for the next big bull-run. ​ What did I learn? In my initial plan Claymore just came out with Version 14.5 which allows RX GPUs to run "Straps" without having to BIOs mod the cards. This was going to save me time from having to BIOs mod all 140+ GPUs and trying to find the 'right' BIOs for them. Unfortunately that did not go as plan. Using 13x GPUs results in crashes and restarts when applying the STRAP settings. I was never able to figure out the root cause or issue. Because of that it set me back to trying various BIOs and modding all the GPUs per Memory type, Samsung, Hynix, Elpida. Which cost me couple weeks or crashing, failures, and memory problems. It wasn't until I found SRB BIOs mod one-click worked the best for Hynix/Elpida. PBE Bios worked ok for Elpida, but were awful for the Hynix. PBE worked best for the Samsung memory types. Due to the nature of RX470's being previously mined with and second hand I've had about 2 fully DOA, and 5 that would crash. In total out of original purchase of 156 RX470 I've sent back/resold 15 that were not able to mine or died. When getting the farm setup, I found the best way was to use HiveOS initially. Using HiveOS I would flash the GPUs with the BIOs. It will throw off PCI-E Bus errors if any GPUs had faulty risers. Once I confirmed all risers were good, BIOs were flashed, and the rig was mining correctly. I would switch then to Windows/Awesomeminer. Starting with general low overclock of 1100/1950mhz 900mv and adjust from there. Right now the RX470's are performing on average with RXBOOST 30mh/s-30.5Mh/s with the Samsung Memory performing about 31.5Mh/s. RXBOOST is a big part! Using PhoenixMiner 4.5C + AMDmemtweak one 13x GPU rig can achieve about 400mh/s @ 1700w~ Yes I run mining farm via Windows and Awesomeminer. 2 reasons, 1) AwesomeMiner is a 1-time pay service. I had originally purchased during 2017/18 for 20 Rigs. 2) Windows allows lower voltage for RX gpus. Hive/SMOS average around 1850w~ for 13x GPU rig compared to Windows where I can fine tune each card's voltage and achieve 1650-1700w. P104-100's are excellent mining GPUs, for the right price, I purchased mine around $170~ a GPU. Using Claymore's strap feature and a healthy overclock the max I can achieve is 43mh/s @ 130w average is about 41mh/s @ 125w. I still have my issues with these GPU in that the miner crashes every couple days. I've lowered overclocks significantly, raised voltage limits. Moved them off windows and on HiveOS. Tried various things. They still crash periodically. Besides replacing entire risers for each rig, basically at loss other than let the miner crash and auto-restart the miner. RISERS. Risers are the a BIG deal and were one of my sources of main pain and agony. I've spent an extra $400~ just buying new risers, swapping, testing and replacing. Typically if a rig is crashing or GPU having issues. I ALWAYS replace the riser first. If it continues to crash then I move to locate the GPU. Which unfortunately AMD is easier to solve than Nvidia. AMD GPUs will 'drop' out of mining/crash in the program or in HiveOS ​ Where am I at now? Currently I have achieved Semi-stability. I've had to pull out a few RX470s GPUs that were crashing rigs, so I don't have full rigs of 13x RX470's. The longest RX470's I've had run was 15+ days no crashes! I adjust my rigs overclock/Undervolt every 7-days or so. Until I find that perfect sweet spot of no HW error, good overclock and voltage. Interesting thing to note is that 2-rigs I had left running for 15 days+ with no HW errors between that time, GPU10(in both rigs) both had 600+ HW errors by the 15th day. Unsure if GPU error, miner software error, or windows. This is Definitely a TIME-INVESTMENT. I run my own farm personally, by myself, with little help from others. At best I taught my friend to restart the rigs(when i was on vacation). Most nights I'm overwatching my farm and I check on it daily! I've spent countless hours in my mining-farm garage. ​ https://i.redd.it/myhb2jky57k31.png submitted by /u/Xazax310 [link] [comments]

GPUs used for mining vs GPUs used for gaming only. Posted: 01 Sep 2019 09:04 PM PDT I was at a computer shop selling some of my lower end GPUs and the guy suggested that the GPUs used for mining produce somewhat a lower fps than the ones used primarily for gaming because the actual GPU chip gets damaged. I don't know if he was talking out of his ass as i'm not a gamer and the only time i've used GPUs was for mining. After having some general service (silicon change etc) to the GPU, should the mined GPUs perform any less than the gaming ones? In what way does mining actually deteriorates the GPUs? (need to mention that he then proceeds to pass all my GPUs as all good quality, little he knew that he GPUs where mined for over 16 months constantly) Edit: based on the number of replies so far, the shop guy is full of shit... I take it now that due to the stable temperatures coupled with lower voltage, your GPUs will be in better shape mined than used for gaming... submitted by /u/AlienInNewTehran [link] [comments]

AMD GPU FLASHING PROBLEM (Need fix please help me) Posted: 02 Sep 2019 07:09 AM PDT I have a HD7570 1GB GDDR5. My main problem with this card it does not show any display. My first try of solution(#1) : I have tried to flash the GPU bios using ATI/WINFLASH, The problem with it when i try to start the program it will simply crash the whole system ( It will be stuck on screen cant move the mouse cant use keybourd total stuck.) the only thing i could do is to forcefully restart the computer through the power button. (#2) I then tried to flash bia freeDOS, I have followed and have read on the proper steps to do this method. When the DOS has booted successful, After putting commands as (atiflash - f - p 0 "bios name" rom or atiflash - i) It will be stuck there forever when input. Forcing me to restart the computer again forced. Notes: i have tried every version of ATI/AMDwinFlash (Still have same results) I am using a (Windows 7 pro 64bit) If someone could please know the solution to this let me know, or the reason. Thank you. submitted by /u/Snoem [link] [comments]

Safety data sheet of GPUs Posted: 02 Sep 2019 12:42 AM PDT Hey Redditors, Got a question. I am looking for safety Data Sheets for GPUs, especially GTX 1060 3 & 6 GB. Does anybody know where i get them. I need to test round about 800 of them for a client. So i need information about what kind of materials are in it. Many thanks in advance Gz submitted by /u/MrNagel [link] [comments]

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