CPU overheat while running prime95

[isuru003]

I have Intel core2quad q6600 2.4 CPU which i brought 3 years ago. It ran fine 37C-40C while ideal and 58C-63C while play games or CPU at full load.

But now CPU temperature rise over 75C while gaming. And also I found a software called prime95 and ran it.
Then after 7 or 8 minutes is rises over 80C so i stopped prime95.(I used core temp to measure, and speed fan gives 10C different to that)

After that remove CPU fan and clean it. But nothing is changed. I am sure i fix CPU correctly and reapplied thermal compound also. So what's wrong please help

And also I have little worry about my CPU fan, It is same old which is came with stock. And I set CPU fan speed to full in bios, But I get 2500rpm-2900rpm which is shown in Speed Fan software.Is this normal or I have to change CPU fan?

Please help...

 

[isuru003]

yep ... this cause problem, your CPU alway's hungry power when full load, i f you ran at prime95 you mobo must 8pin , for better ran at default and don't try use Prime 95 because no overclock.

if your PSU full enough power for system just get like this 4pin to 8pin adapter : http://www.cable-trader.co.uk/images/items/8 pin to 4 pin ATX mainboard power adapter.jpg

OK thank you henydiah, Now I understand, I ran my computer almost 3 years like this, I had done a big mistake by not giving enough power to CPU and blame my CPU overheat.

OK I think the best idea is check my PSU as soon as possible and buy a 4pin to 8pin adapter.
Thank you my friend

 

[HEXiT]

the 8 pin atx is just for overclocking stability. if you dont oc or you dont oc past the tdp of the cpu you wont need the other 4 pins...
just keep in mind that each 4 pin will supply another 75 watts.
with a potential of 225wats with the 20-24 pin and an 8pin atx... saying as most cpus are rated at less than 140 watts the extra 4 just isnt needed.
if your cpu is 95 watts or less you can forget about the other 4 alltogether.

 

[isuru003]

i dont think 20 amps on the 12v rail for a "500w" psu is enough. iirc antec's ea430d and corsair cx430 v2 has around 27-30amps on the 12v rail.... and those are the lowest psu's id ever put in a system of any sort.

Replace it my friend, it'll do you better in the long run + give you less headaches later on.

Budget units i love to recommend
Antec EA380D
Corsair CX430V2

OK, now you leave me no choice but to buy new PSU.

Do you think even if I shouldn't check my PSU that whether it has actual 500W or not and simply throw it to garbage and buy new one?

OK, If that is my last option then I'll do it,
Thank you friend.

 

[isuru003]

- tets PSU with manual check with a multimeter or if you dont know how to check the psu health you can also get it check by a professional.
- and this one software VERY DANGEROUS TEST , your PSU can BLOW Up, Overheat, use OCCT ( I'm not telling you to do that, terrify )

As you ask from your one of previous post, I just checked my PSU with multimeter, I took my PSU to 3 repairing centers where electric professional work,
But they said that they can't check actual 500W of PSU, they said they can check its Voltages, So I asked them check Voltages and they said Voltages are fine and match with PSU sticker .

So unfortunately I can't check whether my PSU giving actual 500W or not but all other information about Voltages are correct,

Now I have to make decision to buy new PSU according to lilotimz's suggestion.

If you any different idea please tell me,

 

[isuru003]

Best answer selected by isuru003.

 

[mdd1963]

Is also possible it is not any sort of power issue at ll, but merely old/solidified thermal compound on the heat sink/cpu heat spreader....

Reapply new paste....it indeed does not last forever.

 

[henydiah]

Many PSU have good output and it's all depend your budget , this is easy for us to help change good PSU according to Price and performance from good brand, thank's

 

[Mousemonkey]

This topic has been closed by Mousemonkey