Question guys.
Is it safe to run 4 1080Tis on 1200W PSU?
PL will be 85%.
Riser powered by 6 pin, 6 pin, 1st Molex, 2nd Molex.
My Cooler Master V1200 Platinum has 5 PCI-e cables.
Yes, it is safe. But there is almost no reserve, because the average calculation for 1080ti is 250 watts, plus the system is 100 watts.
Total you have the type of 100 watts of stock. But it is better to take 200-300 reserve for inner peace. But according to calculations, everything is fine.
There is always the possibility of your rig restarting due to a crash (or Windows update etc) and having the GPUs all set back to stock power levels. If you have your rigs set to auto start mining if they reboot you would then find yourself consuming 100% power on all GPUs... for that reason alone we like to leave some wiggle room in our rigs.