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I3 530 CPU temp from Bios ~90C!!!

Last response: in CPUs
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January 22, 2011 9:31:13 PM

Hello,

My first computer build.
Specs
Antec 300 case
Gigabyte GA p55A-UD3 MB
Antec EA650 power supply
HIS H467QR1GH Radeon HD 4670 1GB 128-bit DDR3 Video Card
8 GB G.SKILL 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600

Put together and booted fine first time. Been installing drivers and other software but no real use yet. Had it on ~10 times for at least 1 hr. for one session over the past week.

Just checked temp of cpu from Bios and it started at ~70C and went up to 90C as I was watching (idle)!!!. I used the stock cooling fan and the stock thermal compound attached to Heat Sink. I just double checked heat sink and it was firm on the cpu- could not wiggle it. I used the 8 prong power line (EPS12V v2.91 according to Antec) to power the cpu on the mother board (label 12V 2 x 4 ATX according to Gigabyte).

Should I have used the 4 prong 12V ATX connector. Could the BIOS CPU temp sensor be that off?

Any other suggestions. Will I fry the cpu if I continue to use?

Thanks for your help in advanced!

Marc

More about : 530 cpu temp bios 90c

a c 120 à CPUs
January 22, 2011 9:57:58 PM

Yes it could be a faulty mobo reading i would reset/default my bios and see if things change.
Also running another app like Coretemp or Realtemp could give you piece of mind.
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January 22, 2011 10:00:16 PM

No if the motherboard and CPU requires the EPS plug than you use it (though the old 4-pin P4 would work as well). Even basic thermal compound shouldn't allow the CPU to go that high in temps, have you tried re-applying it?
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January 22, 2011 10:26:09 PM

Thanks, I downloaded Realtemp and it was stating around 46 C idle. Ran a Prime9 stress test and the values immediately started climbing up to 90C before I killed the test.

Did I connect the wrong power supply connection to the mother board?

I haven't physically checked to see if cpu fan is working but Bios is registering a rpm for cpu fan?

Any thought on what to do next.

Thanks,
Marc
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Best solution

January 22, 2011 10:28:56 PM

If it was the wrong power connector (PCI-e 8-pin for example) there would be smoke pouring out of your system so you should be fine. Are you OC'ing the CPU? Try flashing a new BIOS into the the mobo.
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January 22, 2011 10:29:37 PM

The thermal compound was in strips attached to the heat sink. I have a tube of artic silver that is probably 5 years old. I guess I should remove the heat sink, clean the heat sink and cpu surface with isopropanol and apply the artic silver and try again?

Thanks,
Marc
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January 22, 2011 10:31:33 PM

Go ahead, the artic silver should still be fine unless it dried up.
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January 22, 2011 11:08:44 PM

No Overclocking
Updated the Bios file with the same version (most recent).
Idle temp around 50 C started prime 95 test and jumped up to 90+ in a few seconds before I killed the test.

I will try the artic silver but am wondering if I should just purchase a new heatsink/fan before I do so?
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January 22, 2011 11:10:08 PM

Unless you OC the stock one should be just fine.
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a c 120 à CPUs
January 22, 2011 11:39:03 PM

mister g's suggestion is sound.
Reapplication of paste and heatsink is a good start to resolving your issue.
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January 22, 2011 11:59:35 PM

Thanks for your advice

Is 91% Isopropanol high enough concentration for cleaning off old thermal paste?

Worst case scenario applying new thermal paste does not work. What to check next?
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January 23, 2011 12:11:45 AM

Yeah the alcohol should be fine. If the new paste doesn't work I would begin looking for a new BIOS for the mobo and other programs to looks at the temps to see if it's really that high. GPUs can go that high but not CPUs.
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January 23, 2011 12:31:30 AM

Should I remove the cpu from the MB before cleaning off the old thermal paste or can I clean it while it is in the socket?
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a c 120 à CPUs
January 23, 2011 2:04:32 AM

There's no need to remove your cpu just clean it with the alcohol and perhaps a coffee filter.
Don't apply too much paste a pea sized blob should do and the heatsink should apply adequate pressure to spread the paste.
Good luck!
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January 23, 2011 4:31:03 AM

Thanks everyone for your help!

I cleaned the heck out of the stock heatsink with Goof Off followed by 91% isopropyl

The cpu cleaned up easily with the Goof off followed by 91% isopropyl (using coffee filters)

Followed the Artic silver 5 instructions about tinting the heat sink. Added a thin stripe according to instructions for i3 cpus.

When reattaching the heatsink I realized I had turned the plastic screws the first time I installed it instead of just pushing them down.

Ran two stress tests using Real Temp and Prime 95.

at 100% cpu highest temp was 57 C. Idle temp around 27 - 30 C.

Problem solved!!!
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a c 120 à CPUs
January 23, 2011 2:21:48 PM

CoastsideCyclist said:
Thanks everyone for your help!

I cleaned the heck out of the stock heatsink with Goof Off followed by 91% isopropyl

The cpu cleaned up easily with the Goof off followed by 91% isopropyl (using coffee filters)

Followed the Artic silver 5 instructions about tinting the heat sink. Added a thin stripe according to instructions for i3 cpus.

When reattaching the heatsink I realized I had turned the plastic screws the first time I installed it instead of just pushing them down.

Ran two stress tests using Real Temp and Prime 95.

at 100% cpu highest temp was 57 C. Idle temp around 27 - 30 C.

Problem solved!!!

Good stuff! and a very common mistake regarding the pushpins.
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January 23, 2011 3:06:31 PM

Followup questions, does anyone have any suggestions for burn in programs or programs to test if I did any damage to the cpu when it heated up over 70C?
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January 23, 2011 3:08:15 PM

Best answer selected by CoastsideCyclist.
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January 23, 2011 3:24:12 PM

I can't think of any except for standard stress tests.
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!