CPU Over Temperature

G

gj73

Member
Hi,

I came home tonight and my pc has rebooted with a cpu over temperature error. Push F1 and it neither boots into windows or safe mode. The bios says the cpu temp is 85c and motherboard temp 30c.
I’ve opened the case and the heatsink was a bit wobbly (rotated a few degrees each way? – I moved about a week ago so maybe its got knocked?). I’ve removed the heatsink. Is the paste meant to stick between the cpu and the heatsink? Mine wasn’t.

How do I reapply the paste and is there anything I should know (I’ve not installed a CPU before). I’ve cleaned the old paste off the heatsink, but haven’t touched the cpu? Is this right?

Spec is below.

Thanks for helping

Case COOLERMASTER CM690 MKII ADVANCED CASE
Overclocked CPU OverClocked Intel® Core™i7 Quad Core Processor i7-950 (3.06GHz @ max 3.8GHz)
OC Settings Show/Hide
Motherboard ASUS® P6X58D-E: DDR3, USB 3.0, SATA 6.0GB/s, 3-Way SLI
Memory (RAM) 12GB KINGSTON HYPER-X TRI-DDR3 1600MHz, X.M.P (6 x 2GB KIT)
Graphics Card 1GB NVIDIA GEFORCE GTS450 - 2 DVI,HDMI,VGA - DirectX® 11, 3D Vision Ready
2nd Graphics Card NONE
3rd Graphics Card NONE
Memory - 1st Hard Disk 1TB WD CAVIAR BLACK WD1002FAEX, SATA 6 Gb/s, 64MB CACHE (7200rpm)
2nd Hard Disk 2TB WD CAVIAR GREEN WD20EARS, SATA 3 Gb/s, 64MB CACHE
RAID NONE
1st DVD/BLU-RAY Drive 24x DUAL LAYER DVD WRITER ±R/±RW/RAM
2nd DVD/BLU-RAY Drive NONE
Memory Card Reader INTERNAL 52 IN 1 CARD READER (XD, MS, CF, SD, etc) + 1 x USB 2.0 PORT
Power Supply CORSAIR 650W TX SERIES (TX650) 80+ ULTRA QUIET PSU (£76)
Processor Cooling TITAN FENRIR EVO EXTREME HEATPIPE CPU COOLER (£39)
Thermal Paste ARCTIC COOLING MX-3 HIGH THERMAL CONDUCTIVITY COMPOUND (£9)
Sound Card ONBOARD 8 CHANNEL (7.1) HIGH DEF AUDIO (AS STANDARD)
 
Corfate

Corfate

Author Level
The paste is meant to be placed ontop of the cpu, so when you tighten the heatsink down it smeeres it over the area where the heatsink touches the CPU. What did you clean the old paste off with? You were right not too touch it, as your skin have grease and muck on it, so it'll leave a thin layer of grease on the cpu, which may or may not affect the thermal paste's heatsinking ability, but just to be on the safeside, don't touch it. You need to buy some thermal paste, place a small amount on the CPU (Like a small pea shaped amount) and then attach the heatsink back on, tightening it up properly :)

Since the Heatsink wasn't tightly attached too the CPU, it would seem like that was the problem.
 
P

PokerFace

Banned
Make sure the heatsink and cpu surfaces are both clean. I believe it's best to use isopropyl alcohol and a soft cloth. Have a look at some youtube videos to get an idea on how best to reapply the paste, as there are various methods. Make sure you don't put too much, as that will be wose than too little.

Installing thermal compound
 
vanthus

vanthus

Member Resting in Peace
As you've went this far I would clean all signs of the old thermal paste from both heatsink & CPU with TIM Clean using a lint free cloth.
then apply new thermal paste to the CPU contact plate as Corfate describes.
 
Last edited:
G

gj73

Member
applied arctic silver 5 and remounted heatsink,. booted ok, then shut down after 10mins. all four cores at over 95C. PC is under 1 year warranty - how do I get support? Sorry about short post, but my pc specialist laptop I'm typing this on has bluescreened twice in 10mins with dodgy memory. not happy at the moment.
 
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