I have a corsair 850TX psu and I think it is not enough power for my components. I have recently flashed my gpu's with a modded bios unlocking voltage to 1.21v and during some games the computer would crash. Not a driver crash but a hard lockup requiring a restart. This last crash really scared me, locked the pc then rebooted but only picked up one card. Plus it wouldn't read past 324mhz on the core. Restarted several times and it was the same. Next I shut the pc down and turned the psu off seeing if that would possibly reset it. Sure enough it did but both cards stuck at 324mhz. Re-flashed both bios back to stock and re-installed the drivers and it came all back to normal. Now I have no clue how to test the psu other than some kind of wattage meter at the wall (I don't have one) but I am starting to think I am pushing it to the max. Cpu is a 3930k at 4.3 @ 1.28v, 4hdd's, 2 ssd's, 14 fans, pump, etc... The bummer part is I just finished sleeving the whole thing which took nearly 4 days. Is there anyway to check if the psu is to the max? If it's not one thing wrong, it's another thing wrong.