Hello,
I'm sure this has been discussed already, but thread is too long to read and search did not come up with anything useful. So here it goes.
Have a rig with:
1x MBO MSI B250M PRO VD
1x DDR4 4GB
1x Celeron
8x Gigabyte GTX 1060 OC 3GB Windforce
1x 256GB SSD on USB (also tried 16GB USB pendrive)
3x PCIe expanders 1->4x from aliexpress
1x 1.5kW server PSU.
OS: Ubuntu 16.04, Ubuntu 17.04, Kubuntu 17.04, Windows 10 x64 - same results
Linux drivers tested: v375, v384. Windows - latest driver.
Mining ETH with Claymore's miner.
Problem #1
The OS lags a lot, even when no miner is running. But when I start mining, the OS becomes extremely unresponsive and crashes anytime within 10 minutes to 2 hours. Especially harsh on windows, I don't even have to start mining, it's enough to open USB drive or do any other task and CPU usage jumps to 100% on one core, saying it's being used by system interrupts. And then it gradually mitigates to second core as well, and then it freezes up.
Problem #2
I only get 15.7 MH/s per card stock, and max 18.9 MH/s OC to +100/+1000 MHz.
Problem #3
On linux, unable to overclock if IGD is enabled, some kind of problem with nvidia settings - xorg.conf file. Have to disable the IGD and connect the monitor to one of GTX cards. This is very inconsistent, sometimes I get different results, as it looks like BIOS is behaving weirdly - sometimes IGD sharing still works, even if it is disabled, but then it gets stuck on boot screen, while GTX proceeds in to displaying normal desktop GUI.
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Has anyone tried this motherboard? It has a B250 chipset and should support up to 12 PCIe devices. Problem #1 and #3 does seem like a hardware problem, since i get same results on both Linux and Windows. I have adjusted PCI latency from 128 to 224 clocks with minor improvement.
Problem #2 is probably a driver problem? I have tried v375 and v384 on linux - same results. Should I try v372, like suggested by Claymore's miner?
- Is mining mode enabled in motherboard BIOS ?
- Did you upgrade windows virtual memory to 16 000 ?
Exemple : Increase Virtual Memory
In search type “This PC“, right click on it and choose “Properties“
Then click on “Advanced System Settings“
On “Advanced” tab where it says “Performance” click on “Settings“
Click “Advanced” tab
At the bottom you will see “Virtual memory“, click on “Change“
1. Uncheck “Automatically manage paging file size for all drives“
2. Check “Custom size“
3. In the “Initial size (MB)” type: 3000 (or directly 16000)
4. In the “Maximum size (MB)” type: 16000 (or more like 20k)
5. Click “Set” , then “OK” and “Apply“
Restart the rig
ref :
http://1stminingrig.com/best-windows-setup-configuration-tweaks-for-mining/------
- Have you tried your rig with only one GPU first to see if the problem is the same ?
- Is the claymore version you are using is among the latest ones ?
- Have you tried one gpu mining on other miners and other algorithms to see if your results are low as well ?
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Yes, setting up a rig at first is a real time killer, but once it's done and you've met the sweetspot, it's really worth the shot.
