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September 18, 2017, 10:12:17 AM |
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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?
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