Quote from: nonny12 on June 07, 2018, 05:21:21 AM

Quote from: senseless on June 07, 2018, 03:12:19 AM

Quote from: timedk on June 07, 2018, 03:10:20 AM

Perfect, I have the 5 cards on 1x to 16x risers of course powered via sata cables for each riser card. Look forward to learning something new. Thanks!

Oh wait, one more dumb question. My MB has only 2x PCIe 3.0x16 and 4x PCIe 2.0x1. The risers are 1x to 16x, will that be ok to run 5 FPGA's this way or would it cause stability issues in your opinion. Thank you again.

WARNING:

MAKE SURE YOU DO NOT OVER LOAD THE CABLES POWERING THE RISERS. THE GPUS DO NOT CONSUME MUCH POWER FROM THE PCI-E BUS. THE FPGA ARE DIFFERENT AND WILL DEFINITELY CONSUME ALL THE POWER IT CAN!!

I'm going to post a great deal of videos and documentation before these ship. I'm going to make this really clear. Improper use can cause it to fail. I would recommend using the risers which allow a connection from a 6-Pin PCI-E cable.

Good point. The risers I was looking to use are powered from 6 pin SATA power adapters. Looks like the max rated draw on those is 4.5 A @ 12V = 54W, not enough for the 75W the FPGA will need.

The 4-pin molex connectors look like they would work to power one riser, as they are rated for 11A at 12V. 6-pin PCI-E cables are usually limited, so I am looking for other options, like the 4-pin molex.

I think if people are swapping their GPUs out for these in existing risers they should have a free 6 or 8 pin cable to plug directly into the riser. Most gpus are a 6+8 or 8+8. In our case, it would be 6 for the riser and 8 for the card.

They'll just need to make sure the riser itself can handle it. But as I said in the post above, we're doing some testing on risers and may just include them with the board.