Old notes on a prior look at a [[GPU Build]] are on the wiki too.
There weren't any particularly noteworthy things about the hardware build. The GPUs need to go in slots 1 and 3, which means they sit tight on each other. I put the Titan XP in slot 1 (and plugged the monitor into its HDMI port), because then the fans for the Titan RTX (which I expect will get heavier use) are in the clear. The initial BIOS boot was weird - the machine ran at full power for a short period then powered off multiple times before finally giving a single system beep and loading the BIOS. I expect it was It may have been memory checking or some such.
==BIOS==