overheating i5-4690k overheating

[I_AcCIdentA11Y]

My PC has been in storage for a while, and I've just got it back. 

 

I took it apart to make sure nothing was damage and that everything was seated correctly, and all seems fine. I replaced the thermal paste on my AIO, reassembled everything, and now my CPU immediately overheats to around 85-90°C, leading to an overheat error on POST.

 

As I said, I've reseated the AIO and replaced the thermal paste, as well as resetting the BIOS to default settings (except setting the CPU fan to ignore the RPM because it's running an AIO pump, which I can feel working when I put the back of my hand to the block) but that doesn't seem to have done anything.

 

My specs are:

i5-4690k

Corsair H100i GTX AIO cooler

16GB Corsair Vengeance DDR3 

MSI GTX 1070 GAMING X

Corsair CS750M PSU

[Rauten]

You say the system was in storage for a long while - how long are we talking about?

Or rather, more to my point - how long has the AiO been unused? And how old is it, in general?

If I'm not mistaken, the liquid inside AiOs can go bad after several years, so it could be that yours is now past its prime. Can you try attaching a normal air cooler (even the shitty stock intel one would do for a test)?

[I_AcCIdentA11Y]

3 minutes ago, Rauten said:

You say the system was in storage for a long while - how long are we talking about?

Or rather, more to my point - how long has the AiO been unused? And how old is it, in general?

If I'm not mistaken, the liquid inside AiOs can go bad after several years, so it could be that yours is now past its prime. Can you try attaching a normal air cooler (even the shitty stock intel one would do for a test)?

The cooler is about 5 years old (it was running fine, if a little toasty before I stored it in February), and it's been sat since mid February until today

[Rauten]

I'd still try with a different, even if shitty, cooler just to be sure.

Also you could try lowering vCore a bit. From what I've seen online 1.25v is fine, but inching towards high, for your chip so maybe try lowering to 1.2v and see what happens.

[SorryBella]

25 minutes ago, I_AcCIdentA11Y said:

and now my CPU immediately overheats to around 85-90°C

Do you hear any quiet gurgle from the CPU block? If it makes abnormally loud sound or not even any sound, that means the pump is straight up dead, new cooler.

[I_AcCIdentA11Y]

1 minute ago, SorryClaire said:

Do you hear any quiet gurgle from the CPU block? If it makes abnormally loud sound or not even any sound, that means the pump is straight up dead, new cooler.

I could hear a slight gurgle, but I figured that was down to the fact that it was my tech-illiterate dad stored it with the radiator below the block. I put it the right way up for around 2 hours before I fired it up to make sure there was no air bubbles, but it just sounded like air in the loop.

[Hairless Monkey]

Even with a not working pump, the CPU shouldn't shoot straight up to 90C on POST like that. The block itself has some thermal mass, so it should take some time for the temperature to ramp up rather than spike up.

 

So it's worth checking that you actually remounted the cooler correctly. Remove the CPU block and check the thermal compound spread. If that checks out, then you have a bad AIO.