CPU Overheating... Motherboard sensor problems?

[informalmrtom]

Hi,

I bought my PC a little over a year ago, for about the last 2 months it has started blue screening.

I opened a thread here to further explain

http://www.tomshardware.co.uk/answers/id-2363058/cpu-running-hot-full-load.html#14529352

If you see near the end It has been suggested that it's a common problem that the motherboard sensors

are rubbish, can anyone confirm this or shine any light on the matter?

Thanks

 

[mantadog]

if you have already done everything suggested in that thread and have seen no improvement, it is most likely a hardware issue.

I'm not familiar with that board and it's issues, but the temp sensor for the CPU is in the CPU not the motherboard. So unless its something on the board overheating the issue is unlikely to be down to the board, unless its a connection between the CPU and the motherboard that's a bit off.

The temps should drop off gradually after a stress test, certainly not only a second or so. Are you sure you have re seated the cooler correctly etc?

 

[SpyderTracks]

if you have already done everything suggested in that thread and have seen no improvement, it is most likely a hardware issue.

I'm not familiar with that board and it's issues, but the temp sensor for the CPU is in the CPU not the motherboard. So unless its something on the board overheating the issue is unlikely to be down to the board, unless its a connection between the CPU and the motherboard that's a bit off.

The temps should drop off gradually after a stress test, certainly not only a second or so. Are you sure you have re seated the cooler correctly etc?

I would agree with mantadog, the sensor for this chip are in the chip, not the motherboard. From the posts you made in that thread, there was obviously a pretty hairy overclock going on, was this applied by yourself? You mention in the thread that you've reduced the overclock to default (ie. turned it off) but don't answer weather it was applied by yourself or that was how you received it? The answer to this would greatly influence troubleshooting.

Couple of things I would say in correcting this...

1/. Uninstall any asus mobo software (AISuite and ALL components), it's truly god awful and tends to cause problems generally. To do this, you'll need a wiper tool from Asus below (yes, that's right, Asus had to write a separate package because a normal uninstall doesn't actually uninstall it ) This may be influencing incorrect temps and readings within windows.

http://rog.asus.com/forum/showthread.php?28319-AI-Suite-II-uninstall-cleaner

2/. Reapply the thermal paste on the CPU cooler. If you haven't done this before, it's really simple, but best to get a youtube guide on it to make sure, and make sure the cooler plate is re-attached correctly and securely.

Then and only then, try monitoring again with piriform speccy and hwmonitor to check system temps and voltages.

3/. Backup all BIOS settings via the BIOS or however you want, then reset the BIOS as below:

1st step: PC power shut down and removes power cable.
2nd step: CLRTC_SW has 3 pins. Short 1-2 pins for default setup. If you would like clear CMOS setting data & temporary data in south bridge, please short 2-3 pins by jumper for 10 sec. When you finish clean CMOS process, please change back your jumper pin to Default [Default: [1-2] pins short].
3rd step: Plug in Power cable and turn on the PC power.

Those three would essentially reset the system back to factory defaults plus adding the new thermal paste will rejuvinate it's cooling capabilities. From here on, diagnosing should be a lot easier.

 

[informalmrtom]

Thanks for your suggestions guys, it's fixed now. (FYI PC Specialist applied the overclock)

A new thermal paste seems to have fixed the problem

Idling at 30c

The Aida64 CPU test hovers around 48c

The Aida64 FPU test maxes at 75c

Heaven Benchmark (ultra settings) at 65c (used to be 85c)

 

[SpyderTracks]

Thanks for your suggestions guys, it's fixed now. (FYI PC Specialist applied the overclock)

A new thermal paste seems to have fixed the problem

Idling at 30c

The Aida64 CPU test hovers around 48c

The Aida64 FPU test maxes at 75c

Heaven Benchmark (ultra settings) at 65c (used to be 85c)

That's much more like it, glad it's sorted.

 

[mantadog]

Glad its sorted, new thermal paste usually does the trick. Didn't think it was a sensor issue, not sure why people were suggesting it on tomshardware to be honest....