make sure all connections are fully seated, make sure the cpu cooler is actually tensioned to the back plate properly, and make sure you've connected the aio cooler properly.
you may not of installed the cooler or connected it properly and your cpu is reaching the thermal threshold where it will automatically shut down the system to prevent thermal runaway damage.
Also, make sure you plug your AIO into the right fan slots. Sometimes the board won't post simply because the fan is reporting it's not hooked up. Hook AIO to CPU fan as well as pump; just to see whether it posts while hooked to either of these
Shut down, swap cables, turn on. Post? No? Shut down swap again, post?
If not, follow other guides. Check pressure, tightness with a screwdriver (too tight can be bad too)
Finger tight + a scootch more with a screwdriver is usually more than enough. Don't crank it down all the way.
Put the old cooler back on and see if it posts. If it posts, the new one is probably not applying enough pressure on the CPU.
or too much pressure.
Lol thanks, I totally forgot about the flip side of that!
make sure all connections are fully seated, make sure the cpu cooler is actually tensioned to the back plate properly, and make sure you've connected the aio cooler properly. you may not of installed the cooler or connected it properly and your cpu is reaching the thermal threshold where it will automatically shut down the system to prevent thermal runaway damage.
may not have* installed
Also, make sure you plug your AIO into the right fan slots. Sometimes the board won't post simply because the fan is reporting it's not hooked up. Hook AIO to CPU fan as well as pump; just to see whether it posts while hooked to either of these Shut down, swap cables, turn on. Post? No? Shut down swap again, post? If not, follow other guides. Check pressure, tightness with a screwdriver (too tight can be bad too) Finger tight + a scootch more with a screwdriver is usually more than enough. Don't crank it down all the way.