BTCBTCBTCWilling to offer 24 hours of mining time directly to a BTC wallet for help resolving my GPU issue. My rig with 3 GTX 1070ti is averaging .0013 BTC per 24 Hours on zpool profit switching.
Has anyone run into Fail to POST to BIOS (Let alone Windows). I am using Awesome Miner. The issue I am facing occurs after adding more than 3 Cards to my Miner. 4 or more cards results in failure to POST. I intend to buy a few more RIG's worth of parts based off Angry Chicken's specs here
https://www.youtube.com/watch?v=Ad5ZqwR-d-0 but, I want to ensure it will work prior to committing to further capital investment.
I have tried adding the cards in different orders to see if it changes the FAIL to POST to BIOS. I have checked each Riser to ensure its not a bad riser. I have checked everyslot on the board for proper function as well. None of these variables seem to affect the failure to POST which leads me to believe there is a hardware issue/limitation. Does the RAM or CPU determine how many GPUs I can run off Risers? Using Risers ver6 with Molex.
My Rig
Software: Awesome Miner, Zpool Profit Switching
Motherboard:
Asus Prime Z-270A
Ram:
Crucial 4GB DDR4 2133 MHz
Processor:
Intel Celeron G3930 2.9 GHz Dual-Core LGA 1151 Processor
Power Supply:
EVGA SuperNOVA 1200 P2 Power Supply
GPU's:
1 EVGA GTX 1070ti
2 ASUS GTX 1070ti
1 EVGA GTX 970 - Old Card from gaming rig. Used only to ensure I can expand past 3 cards. Card is now mining in my old machine
What's the version on your BIOS? If you have never flashed your BIOS and the mobo is over a year old, a lot of mobos need an update to support lots of graphics cards.
If I had to guess, it is most likely an issue with your mobo trying to assign a bus width to each card that your processor cannot support. Given what you've stated. I'd assume your PCIe width being assigned by the motherboard for each card is x4 so when you try to add another you have x20 bits on the PCIe bus from your mobo, but your processor only has 16x.
You could go into your BIOS and tell it that all PCIe lanes should be forced down to 1x. If that doesn't work, try flashing the latest BIOS onto your mobo if you haven't.
