Q6600 Overheating with both stock and miniTyphoon HS

[binzia]

I've been using a Q6600 2.4Ghz processor with an ordinary chasis for approximately 5 years. Except for last 6 months, it went fine. Average idle temp were 36C and max 90C(Full LOAD) with stock HS.

But 6 months ago, it suddenly rose to idle 55-60C. even when cpu load is 25%,the temp goes ~90C. When 100% working, its 100C but never shuts down due to high temp.

As thinking it as stock HS limitation, I replaced it with Thermaltake miniTyphoon HS but the condition didn't change a bit. Still my idle temp ~60C, under 25% load little under 90C and when 100% workin,around 100C.
i didn't replace the thermal paste as I didnt have any while replacing HS but there was enough in the processor I think. but anyway, I've already bought some and will apply whenever get chance(I take help from an expert).
please note, I live in Bangladesh and there's no way to find branded pastes.

I would be happy if anyone can find the reason behind. Is it the thermal paste? or temp reading diode has gone wrong?

 

[kookie3010]

I've been using a Q6600 2.4Ghz processor with an ordinary chasis for approximately 5 years. Except for last 6 months, it went fine. Average idle temp were 36C and max 90C(Full LOAD) with stock HS.

But 6 months ago, it suddenly rose to idle 55-60C. even when cpu load is 25%,the temp goes ~90C. When 100% working, its 100C but never shuts down due to high temp.

As thinking it as stock HS limitation, I replaced it with Thermaltake miniTyphoon HS but the condition didn't change a bit. Still my idle temp ~60C, under 25% load little under 90C and when 100% workin,around 100C.
i didn't replace the thermal paste as I didnt have any while replacing HS but there was enough in the processor I think. but anyway, I've already bought some and will apply whenever get chance(I take help from an expert).
please note, I live in Bangladesh and there's no way to find branded pastes.

I would be happy if anyone can find the reason behind. Is it the thermal paste? or temp reading diode has gone wrong?

Try using a physical thermometer and check the cpu temp.what is ur PSU?

 

[RobCrezz]

Clean off the old paste and reapply new paste. Doesnt matter what brand, just apply it correctly.

Had exactly the same thing the other day with a friends i5, the original paste got old and it the contact wasnt good, so it would overheat. I cleaned it off with white sprit, reapplyed some spare paste I had and all is now fine.

 

[binzia]

Thanks for the advice. my psu is space 400 watt.
Btw strange thing is,while removing the HS, my mobo (Intel DG35EC) suddenly stopped respondin. while testing the cpu+psu on a Gigabyte G41 combo moBo, I found the idle temp is between 36C-32C with a stock HS(not my one,another slightly heavier one). So, the prob was on my mobo actually!!
anyway,i changed the mobo, bought a gigabyte G41 combo and now the idle temp is 44-37c (I expcted better !! )
but the problem is, while running prime95,temp went high as 100C!!!
i dont know what to do now... :/