Originally Posted by tsm106
That shouldn't affect boot. When you tested by removing the 970, did you put in another one? By what you wrote that part was vague and implied something completely different.
When I tested on air I used the GPU from the bedroom PC. When it all tested good, I reinstalled the loop, including the blocked 970. I got no power again. I pulled the GPU out of the PCIe slot and held it with the block still installed and plumbed into the loop and tried powering up and nothing still. I reinstalled the card and switched out the CPU block screws with longer ones and it booted up. So I've concluded that the stock CPU block screws were so tight and causing so much warping of the mobo that it was creating a short or some other issue. But it works now and that's all that matters.
Originally Posted by Rickles
Unlikely since the loop was already set up. And if switching the screws out let it boot right up, I would wager that it did affect it...
Yup, I've concluded that the flexing of the board due to the tightness of the stock screws was the issue