Just received the following components for my first rig:
- biostar TB250-BTC+ (8xGPU)
- 6x Asus ROG GTX 1070 (will be 8 in total in a few weeks)
- 8x risers ver007
- 2x EVGA 850w P2 80+ Platinum rated
- mainboard power connector splitter to power on both PSUs at the same time
- 4GB ram
- other stuff, not important to the problem...
Being new to the scene, I misjudged:
- the number of VGA/PCIe (6 and 6+2 pin) power cables these PSUs have (just 4) and support AND
- the fact that both the GPU AND the risers need power
I totally assumed that if you powered the GPU directly, you didn't need to power the riser. Ok, my bad - I'm a dufus. I need 8 VGA/PCIe connectors so each PSU can power 4 risers and 4 GPUs. Each PSU only supports 4 cables, but 2 of the cables have both 8pin (6+2) and 6pin connectors (but too close together to reach both GPU and riser!).
How can I salvage this situation and get my rig up and running?
- Power splitters? Unsure of safety here - can I power both a riser and a GPU from a single VGA power cable?
- Obviously return the PSUs and get a higher/pricier model
BTW, been a long time lurker on BCT, this is my first post. BCT has been super helpful, thanks to everyone!
Cheers!