I5 760 heating like hell

[Ali Tauseef]

Hi everyone,
I bought an i5 760 from a guy on some forums in Pakistan....
The processor arrived with the Stock cooler. I installed both the things and found the processor going upto 80C in just under a minute. I turned it off, thermal paste came pre applied but I applied it again. Restarted and went into bios to find that Intel turbo boost was on which pushed the processor to 3.25 ghz from the stock 2.79 so I turned it off, I did see a massive difference of temperatures staying around 40 with a max of 45C, I decided to run the Intel burn test and the temperatures quickly went to 90C. This is rather weird, note that on idle temperatures were still very unstable besides the fact they stayed low.... So is there something wrong with the processor or do I need to get a decent cooler. Answers will be appreciated.

 

[nukemaster]

It sounds like the cooler did not have the 4 pins pushed all the way to the other side of the board before they locked.

When you remove the cooler, you normally have to clean and apply new paste.

You may have to check the back of the board to see if the pins made it all the way out before locking.

 

[Ali Tauseef]

It sounds like the cooler did not have the 4 pins pushed all the way to the other side of the board before they locked.

When you remove the cooler, you normally have to clean and apply new paste.

You may have to check the back of the board to see if the pins made it all the way out before locking.

I am not sure about that, will I have have to take out the mobo? The PC is pre built so I don't have much of an idea what to do. Perhaps I will try opening the back of the case. Will let you know later since I have to go somewhere.

 

[nukemaster]

Some cases allow you to see the back of the board under the cpu and others do not.

You can also try to gently press down on the cooler when the system is idle to see if the temperatures stabilize. If even on of the 4 pins is not locked it can cause this.

If you are luck you can turn off the system, hold the center of the cooler and release(they need to turn) + pop up all the pins then turn them back and press them in an X pattern(you press 2 at a time this way) to try to re-lock the cooler on the board.

 

[Ali Tauseef]

Some cases allow you to see the back of the board under the cpu and others do not.

You can also try to gently press down on the cooler when the system is idle to see if the temperatures stabilize. If even on of the 4 pins is not locked it can cause this.

If you are luck you can turn off the system, hold the center of the cooler and release(they need to turn) + pop up all the pins then turn them back and press them in an X pattern(you press 2 at a time this way) to try to re-lock the cooler on the board.

I'll check that out, but when I went to the bios menu, I saw the CPU voltage at 1.500v.. is that too high?

 

[nukemaster]

Do you have an auto setting? 1.5 seems high for a stock clock speed.

I would expect the 1.2-1.3(boost adds a bit). My 750(almost the same thing. The 760 was a newer slightly higher clocked version of the same cpu) is 1.088, but turbo forces it upto 1.28(1.26 most of the time only when running). My board allows undervolting and that is why it is lower, but I can not change the pre defined turbo voltage(turbo will only activate if some cores are idle).

Turbo should not cause issues under normal use(only allows higher clocks when you have the headroom. Leave it off until you get this sorted for sure).

 

[Ali Tauseef]

Forgive me for that, that voltage was for the RAM albeit I can't see the CPU voltages...
This may be stupid and I actually have some knowledge about this stuff but are sockets the only thing that matter for a CPU to work fine? Maybe some other motherboard features?
I know this is a used processor and it's still in my hand, I am going to return it. But do you think I'll face any problems if I get the same processor but a new one?
My Mobo is intel so that's another reason to be worried.
It's an intel dh55tc...
UPDATE: Also noticed the CPU usage which also seems quite unusual. It seems to be very shaky and unstable like the temps and isn't going below 50% with a few tasks and chrome tabs open, what do you think?

 

[helpstar]

which BIOS version is installed? Update if it´s outdated

be sure the heatsink is installed correctly and fit tightly

 

[Ali Tauseef]

which BIOS version is installed? Update if it´s outdated

be sure the heatsink is installed correctly and fit tightly

The heatsink is installed all well...

About the bios version, thanks for that. I updated it and the temps are much better.
went upto 76C. High but better, any more tips?

 

[nukemaster]

76 under heavy load would not be unheard of for stock cooling.

 

[helpstar]

How do you measure the temperature? Use prime95 (smallfft)) + coretemp
Also you can check the CPU with the "Intel processor diagnostic tool"


How did you apply the thermal paste and which one did you use?
Use the "pea" method to not apply too much or too less of it

 

[Ali Tauseef]

76 under heavy load would not be unheard of for stock cooling.

I wouldn't agree with that, I saw threads on different forums that people OC'ed this processor on the stock cooler. My signature says I3 540 at 3.5 ghz which was a 500 mhz clock from it's stock. And I did that on the stock cooler. So I wouldn't agree.

How do you measure the temperature? Use prime95 (smallfft)) + coretemp
Also you can check the CPU with the "Intel processor diagnostic tool"


How did you apply the thermal paste and which one did you use?
Use the "pea" method to not apply too much or too less of it

Sure, tried 3 already but 2 more won't hurt. xD

Well I didn't apply it the guys at some shop did. But I think they used a bit and just spread it all over? Not sure about brand, but it definitely wasn't one of the common
The seller is still asking me to keep it.

 

[helpstar]

would reapply it with standard paste arctic mx-2

how does your case look like? Fans installed in front and back?

 

[Ali Tauseef]

would reapply it with standard paste arctic mx-2

how does your case look like? Fans installed in front and back?

I can't find it here mate, not at least now.

Well it's an old shitty case from this brand named legend. There is no space for fans on the front as it's all closed, there is one fan in the back. And there is space for two on one of the side panels. Not sure how big of a fan I'd need.
But do you really think that matters when my i3 540 used to run so well oc'ed on a stock cooler in the same case and the same place.

 

[helpstar]

try temperature tests with open case

How hot was the 540? default TDP of the old one is <20W TDP than the new 760. It could be an additional point to cool down the CPU, by adding at least one fan at the front.

 

[Ali Tauseef]

try temperature tests with open case

How hot was the 540? default TDP of the old one is <20W TDP than the new 760. It could be an additional point to cool down the CPU, by adding at least one fan at the front.

Okay will try and update this post.

It used to run perfectly. Again I'll say, I had it on a stock cooler and had temps monitoring everytime I started my PC. And the highest the temps ever went were 71C.