Hi,
i'm unable to make a new mining Rig work properly, i will appreciate your help to find out the solution

First of all here is my RIG configuration :

-   Pentium g4400
-   6 Nvidia GTX 1060 6Go (4 Palit + 2 asus)
-   8 go RAM DDR 4
-   MSI Z270-a pro motherboard
-   2 psu (900 + 1200) «Bronze Certified»
-   Windows 10 64 bits (installed in uefi mode)
-   SSD 120 Go
-   Im not using any overclock setting
I Tested my ( Psu + riser + graphic cards ) on other motherboard (asus z170 pro + i7 6700k + 16 go RAM) and they work without issues.

Problem :

Everytime i run the miner i get errors like :
-   Windows freeze
-   Blue screen
-   Miner crash
-   Unstable hashrate (only 1 or 2 cards gives normal hashrate and others less than 50% )

What i did to solve the problem :

-   Tested different algo and different miners
-   Configured the bios with the recommended setting for mining (PCI latency timer = 96 ; above 4g decoding = enabled ; PEG 0 max link speed set to Gen2)
-   Installed different version of windows 10 (1703, 1709 )
-   Installed different version of nvidia drivers (clean install everytime)
-   Flashed the bios with the last version
-   Activated and deactivated the integrated garphic cards

But everytime i got the same errors and i get a blue screen or my desktop freeze !!

What i think is the source of the problem ? :

After installing HWinfo and DPC latency checker and tracking the cpu usage in task manager i think i found the problem :

When i run the miner the process « system interrupts » overload my cpu (up to 99%)
The latency is very high what causes the system (or the miner) to crash

When i put graphic cards one by one i got same issues except if i put it in the first PCIe slot !

I verified with Hwinfo and i found that only the first PCIe slot is set to gen 2 and all the others reamain alaways on gen 3 !!

I remake the bios setting, tried to set pci to gen 1 or gen 2 but only the first pci is changed and all other remain on gen 3 whatever i did !! (driving me crazy)

So i think that my problem may be solved if i found how can i switch all PCIe to gen 2

Im open to other suggestions too 😉

I hope i found a superhero that can help me to solve this problem and save my Ass !!

moha83

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