Intel 3570k on asus p8z77 board
I installed the heatseak wrong (damn pushpins - never seen those before and apparently it didn't lock onto the pc as expected). When I went to boot the computer, it started for a split second and then shutdown. Happened 3 or so times until I realized the damn push pin was causing the issue. I ended up ordering a new heatsink to install again (as i couldn't salvage the pushpin) but during the 3 or so times I powered on, could i have done damage? The heatsink was directly on as expected just not locked and thermal paste was applied.
You should be ok.
Hard to tell from this post if you have or haven't installed the new cooler.
Right now I'm waiting for a replacement stock heatsink to come in from ebay. For the time being the cpu is in the motherboard in the case doors both closed and no power cord at all.
As for a pushpin causing the computer not to turn on, I believe it's because the heatsink wasn't flush/tight against the cpu and there must be an auto detect in the event that happens where the computer will shut itself off. Does that sound reasonable? I think everything else is plugged in fine.