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    GPU Mining Monthly Simple Questions Thread

    May 01, 2021

    GPU Mining Monthly Simple Questions Thread

    Monthly Simple Questions Thread

    Posted: 30 Apr 2021 10:01 PM PDT

    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 _____ GPU's?

    Important: Downvotes are strongly discouraged in this thread.

    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:

    submitted by /u/AutoModerator
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    If your job is to get cards, you will get cards.

    Posted: 01 May 2021 01:58 AM PDT

    I know it's not as much as some, but this is the result of mining on a 1070 and 1050 Ti full time, and my 3070 when I'm at work/asleep since late December. Hobby mining has paid for my 3070 and then some.

    Posted: 30 Apr 2021 05:31 PM PDT

    Felt cute, might delete later

    Posted: 30 Apr 2021 03:37 PM PDT

    Apartment mining build working on more cards. 3090/rx580/rx570 8gbs

    Posted: 30 Apr 2021 08:34 PM PDT

    Nvidia Confirms Bad News For Casual Crypto Miners

    Posted: 01 May 2021 08:39 AM PDT

    Gaming PC with external GPU setup for Mining! Dual 3070

    Posted: 30 Apr 2021 10:25 AM PDT

    EVGA 3080 FTW3 Thermal Pad Replacement

    Posted: 01 May 2021 07:58 AM PDT

    I wanted to share my experience replacing the thermal pads on my EVGA 3080 FTW3 to hopefully shed light on if it is worth the investment/work.

    TLDR;

    Replacing your pads is a must! Reduces VRAM temps from 96 - 84. I believe others didn't see good results because they used 2mm pads on the VRAM. You NEED at least 2.25, but 2.5 also works.

    Parts Used:

    1x: 2.0mm ThermalRight Extreme Odyssey Thermal Pad | 1x: 0.5mm ThermalRight Extreme Odyssey Thermal Pad | 1x: 1.0mm ThermalRight Extreme Odyssey Thermal Pad | 1x: 3.0mm ThermalRight Extreme Odyssey Thermal Pad | 1x: Kryonaut ultra performance thermal grease

    Longer Story:

    I have a rig with two EVGA 3080 FTW3's and I wanted to run an experiment to test if replacing the thermal pads makes a difference. Before taking one of the cards apart, I checked both cards memory temps with GPUZ and confirmed they both run around 98-100 in my current environment.

    First Experiment (Didn't work):

    I took one card off the rig and replaced the thermal pads with ThermalRight Extreme Odyssey Thermal Pads (12.8 w/mk).

    Memory (black squares around core): 2.0mm VRM: 1.0mm on top and 3.0mm strips on outside Backplate: 3.0mm on back of memory

    I put things back together, booted up, let the rig run for a couple minutes and the temps were not improved...

    Well I found an EVGA Forum that someone from EVGA said that memory needed 2.25mm so perhaps 2.0mm doesn't have enough compression...

    Second Experiment (Didn't work):

    I took the card out, pulled it apart, and applied left over thermal grease to the memory pads to see if that could bridge the 0.25mm gap and provide better contact. I put the card back together, booted up, and still temps were the same as the card I didn't touch.

    Third Experiment (Finally Worked!):

    One last time...I pulled the card out, took it apart, and removed the memory pads that now were coated in rock hard thermal grease. I cleaned everything up with 99.9% isopropyl alcohol and put on fresh pads. This time I first put down 0.5mm pads and placed 2.0mm pads on top. I made sure all the other pads were intact (they were so only needed the new memory pads).

    I put everything back together and booted up the rig. Wow...this time the memory temps for the card with replaced thermal pads is 82 while the stock card runs at 98!

    The trick is to make sure your memory pads are at least 2.25mm thick! With 2mm pads you won't see any improvement in memory temps. This is because the pads are not making good enough contact.

    I hope this helps those interested in this topic as I know there is a lot of confusion over what works.

    Feel free to ask any questions below and I'll do my best to answer. I can provide screenshots of the two cards GPUZ if anyone is skeptical.

    Happy Mining!

    submitted by /u/Skibum__
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    Best Software for Mix GPU Rig

    Posted: 01 May 2021 07:27 AM PDT

    Currently moving my mixed GPU rig (RX 580, 5700, 3070) on Windows away from Nicehash in favour of direct mining. I've heard HiveOS may be the best option, but I'm currently accessing my rig remotely from another city and won't be able to install a new OS on it. Will definitely try it once I go back.

    In the meantime, I've tried Minerstat software but on their site it specifically says they don't support mix GPU rigs. Currently I'm running teamredminer directly with Ethermine for my AMD cards and trex for my Nvidia.

    Are there any nice rig management/profitability switching software (that automatically switch to the most profitable miner) for Windows (like Minerstat) that I could use in the meantime to keep things organized and running efficiently?

    submitted by /u/zanny_barz
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    After this almost caught fire, I'm definitely going to pay attention before mounting risers

    Posted: 01 May 2021 08:20 AM PDT

    New server psu and breakout board not working... Any suggestions?

    Posted: 01 May 2021 04:34 AM PDT

    Greetings all. I recently bought a 1200 watt hp server power supply and breakout board to power the gpus in my mining rig. I hook up the power supply but it doesn't seem to power on. When I press the power button on the breakout board and it blinks red green blue, but never powers up anything. Any thoughts or suggestions on what I may be doing wrong?

    submitted by /u/Gold_Tonight4280
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    Where are they??

    Posted: 30 Apr 2021 10:04 AM PDT

    Dual 3060 Mining 97mhs

    Posted: 30 Apr 2021 04:49 PM PDT

    Not my primary PC, this was built purely off DEALS and the 3060s were bought at 20% higher msrp.

    Picture of Rig

    Picture of hashrate

    Yes that is an x570 Master and there are cheaper boards that can run dual 3060 but I managed to buy it for $170usd. 2600x cpu bought for $120usd, 250gb Sn550 for $20usd, Lian Li mesh II case for $80usd and 16b 3600mhz ram hyper x kit for $70, 850w gold DA psu for $100usd

    I have been mining since January with other GPUs and will BREAKEVEN by July even accounting the costs for this build, was interested in getting a dual 3060 working. Cabling is a bit messy but i have an 8tb hdd farming Chia below.

    Reminder that you need the following to hash unrestricted on a 3060:

    • plugged into a pcie X16 slot operating at minimum x8 speed

    • plugged into a monitor TURNED ON or have a hdmi dummy plug inserted

    • 470.05 driver installed

    Regarding temperatures, I actually keep the side panel on. GPU temp in the last few weeks of mining average between 45-48 degrees and have hit 51 max for both cards and the p12 fans in the case are helping move air a lot. Having airflow being able to come from below the case really helps too.

    submitted by /u/Bergh3m
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    Tape up dat 3060 PCIe and run it at 8x!

    Posted: 30 Apr 2021 11:48 AM PDT

    Little informative tidbit. Was trying to get 7 GPUs running on my mobo, 6x 3070s and 1 3060. Couldn't get #7 to take, got the "this device could not start" in device manager or it would work and mine for a bit, then drop to 0c on temps and I would lose the device.

    ​

    Pretty much I was running out of PCIe lanes because the 3060 was hogging 16 of them. With a little tape on the PCIe pins on the GPU, you can knock it down to 8x. That did the trick for me.

    I followed info I got from here. You need to cover everything except the first 49 pins. I used scotch tape but people have used electrical tape and sticky notes.

    https://forums.tomshardware.com/threads/covering-gpu-pins-with-sticky-note-to-force-gen3-x8-mode-how-many-pins-to-cover-properly.3281234/

    ​

    Hope this helps someone!

    submitted by /u/ComplexBreakfast
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    *Troubleshooting* Running into a problem where I had a power outage, and now I'm getting CUDA memory allocation problems. I have 4x3070's, running off the PhoenixMiner 5.5c, worked totally fine prior to the outage.

    Posted: 30 Apr 2021 10:16 PM PDT

    Seems I have one the silicon lottery!

    Posted: 01 May 2021 05:51 AM PDT

    3070 driver glitched to 65mh and 90w

    Posted: 30 Apr 2021 11:21 PM PDT

    GeForce RTX 3070 7982 MB · ASUS Samsung GDDR6 · 94.04.3A.40.2B · PL 100 W, 240 W, 270 W 64.95 MH 46° 88 W

    Razvan Popescu, [01.05.21 09:14] the driver glitched

    not sure if
    1 this is valid 2 how to reproduce it

    but considering the glitch on 1660s i think it possible

    submitted by /u/gruia
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    2nd GPU recognized in Windows 10 but not on PhoenixMiner

    Posted: 30 Apr 2021 07:00 PM PDT

    Hey guys, I just bought a 2nd GPU to add to my rig because I had a free pci slot. Amd Ryzen 5 CPU, AMD 5700 came stock and it's working fine. I got an AMD RX 480 8 GB and connected it and Windows recognizes it Device Manager with Driver version 27.20.1034.6 but NiceHash and PhoenixMiner don't recognize it. I've been googling but haven't found a solution. What am I missing here?

    submitted by /u/degeneratehodl
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    HELP 3090 LOSES MH/S When Other GPU Connected

    Posted: 30 Apr 2021 04:40 PM PDT

    Motherboard: ASUS RoG Maximum XI

    PSU: ARESGAME 1000W

    CPU: Intel i7 9800k

    https://imgur.com/gallery/wfnUnFy

    When my EVGA XC3 3090 is the only GPU connected, I can get around 118 mh/s. Whenever I attach my Zotac 2080 Ti via PCIE x16, the 3090 drops to about 85 mh/s and the 2080 Ti gets about 64 mh/s. In addition to the 3090 and 2080 TI, whenever I attach my 2070 FE through PCIE x1 (riser) , my 3090 gets around 60-70 mh/s. The mh/s on the 2080 Ti and 2070 FE run normally, but the mh/s on the 3090 drops drastically.

    Whenever I start Phoenix Miner, I can get 3 cards running at their proper mh/s as follows: 119 mh/s (3090), 64 mh/s (2080 ti), and 43 mh/s (2070 FE), but the mh/s on the 3090 slowly drops until it reaches around 60-70 mh/s. I'm not sure why my 3090 drops so hard. Any tips would be appreciated!

    submitted by /u/h0ngjai
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    RTX 3090 FE VRAM Temp Fan Control Issues

    Posted: 30 Apr 2021 09:39 AM PDT

    Note I'm on a Win10 x64 system.

    I picked up a RTX 3090 FE and for the life of me can't figure out how to control the fans based on the VRAM temps. I've installed MSI Afterburner. Nothing (the manual setting doesn't even seem to work). I've tried the GeForce Experience Experimental Feature; I turn fan control to manual and set it upwards. No impact. 800RPM. Obviously some underlying system is overriding the fan control because the fans do spin up based on GPU usage, but the problem is my VRAM temperatures.

    But manually setting the fans isn't ultimately what I'm looking for - I really want to link the fan RPM to the VRAM temps. Any recommendations on what software does this, and more importantly, why Afterburner and Geforce Experience simply don't work for manually controlling the fan speed?

    submitted by /u/Moogy
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    Mining rig location options

    Posted: 30 Apr 2021 03:16 PM PDT

    1 - I've been thinking about building a shelf to keep the kids n cat away but afraid wife won't like it.

    2 - garage but it gets very hot in there

    3 - a closest but all closets don't have any power ports or ventilation

    4 - laundry room shelf, but no ventilation

    What's y'all's options

    submitted by /u/dc5boost44
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