High temperature on 8700k all of a sudden

[DrBonesMcCoy]

So last night while gaming (Destiny 2 and Rainbow Six Siege) I noticed my PC getting louder than usual. I checked HWMonitor and my CPU was at 90c while gaming. I ran a stress test and instant thermal throttle when stressing just the FPU and CPU. The pipes on my AIO(H115i) Don't feel too hot so I can assume the liquid temp is about room temperature? Probably about 30c. Touching the one pipe you can feel a vibration so I don't think the pump is dead. What could be the cause? It's running at 4.8Ghz right now 1.33V core, it actually runs at about 1.25V on the VCore. I'm gonna reapply the TIM later but I'm stumped as it's been fine for weeks. Any ideas?

[DrBonesMcCoy]

Just now, Starscream203 said:

For me 30c is very warm. I think you can check to see if the pump is working via software Corsair Link. What temps were you seeing before ? 

When I would run stress tests before at 4.8Ghz I'd reach maybe 75c on a stress test and about 70 while gaming. I'm not home atm to check corsair link. My room is usually warm as the sun is on it most of the day and I have a Founders Card dumping heat into the room.

[DrBonesMcCoy]

I'm welsh. It's usually cold. Hot summers etc. It's usually about 16c outside and the heating is sometimes on. I have the heating in my room off. Don't open the window a lot due to allergies but when I do my fan is on blowing cold ass air in. Still though I don't understand why it has been running fine for weeks and I could get a 5.4Ghz OC without it reaching 90c. Now 4.8Ghz is reaching 100c instantly.

 

[DrBonesMcCoy]

Just now, Starscream203 said:

Something changed in your system. First i would check to make sure the pump is working. Then i would make sure the screws are snug on the cooler to the socket. What thermal paste did you use ? 

Well I unscrewed it before going to college this morning. I use Artic MX-4 which has been getting great reviews. I haven't touched my BIOS settings for months. I thought maybe it was sending the wrong voltage but nope. Like I said the pump must be working as when I touch the tubes it feels like a vibrating which I assume is the pump.

[DrBonesMcCoy]

1 minute ago, Starscream203 said:

Are you overclocking in the bios ? 

Yeah it's not much it's only 4.8Ghz/1.33V.

[DrBonesMcCoy]

Just now, Starscream203 said:

I would never assume. make sure the pump is working when you get off work with Corsair link it will show if its working off not 

It was showing it running at 2930 RPM last night when I first noticed the issue. That was in Link.

[DrBonesMcCoy]

buuuuump