Extreme sudden high CPU temperature

VERX

Distinguished
Jun 17, 2014
94
0
18,630
Hey
So today i did a fresh OS install when finishing everything started up Steam and lunched GTAV,Steam started installing "first time" _CommonRedist which include directx and vcredist,suddenly during that installation i heard the fan noise go loud like never before,toke a look at Speccy and the CPU's temp was at 85c-88c,it never came this high,it reaches max 71c when playing GTAV+Firefox+Jetaudio,idle is 30ish before today.
Have Corsair Hydro H80i for cooler,CPU i7 4790,so far this is what i did:
1-Applied new thermal paste,temps got just a bit lower (it did nothing).
2-Removed the H80i and used stock cooler with new thermal paste,temp idle 52c-56c
3-Installed AVAST,found nothing.
What's going on ? is the H80i broke ? could it be a virus ?
Are the idle and max temps with the stock cooler normal:
Idle 52c-56c
Gaming (GTAV+Firefox) 74c-78c (GPU 55c,MB 28c) ?
 
Solution
u could do manual check, put cpu under load, open pc case and touch heatsink, at 90c heatsink should be really hot, as air blowing out from it should be hot , if its not, its probably bad mount, or bad lock pins, also check for thermal compound all around cpu socket. cpu temp should never jump that much in short period of time with proper mounting.

Dredrox

Honorable
Aug 10, 2013
70
0
10,660
u could do manual check, put cpu under load, open pc case and touch heatsink, at 90c heatsink should be really hot, as air blowing out from it should be hot , if its not, its probably bad mount, or bad lock pins, also check for thermal compound all around cpu socket. cpu temp should never jump that much in short period of time with proper mounting.
 
Solution