Noob OC a q6600 - temperatures over 100c! HELP!

[brokenlegs]

First time OC. I read up a bunch before I did this and followed a basic guide. I'm hitting temperatures of over 100 C! My computer seems to be running fine so either my MOBO is fried and I don't know it yet, or is something wrong with my temp sensors?

Here's what I did:

1) I changed the FSB to 333 and the VCORE was set at either auto or 1.23125 to 1.25v to get 3.0ghz overclock. According to this guide: C1E Disabled, Vanderpool Disabled, Speedstep Disabled.

2) Ran PRIME95 Blend test for a few hours

3) Speedfan was registering CPU and AUX temperatures around 35 at first but after about 2 hours it spiked to around 120c. That's impossible isn't it? I was running HWMonitor at the same time and it listed CPUTIN and AUXTIN temperatures hitting 0C minimum and 120C Maximum. WTF? That's a range between freezing and boiling water!

PRIME95 tests all passed for hours, no failures ("round off checking" checked on). My computer seems to be working fine so far, no funny smells from my MOBO. So...what's the deal?

All 4 Cores run below 52C under Load

All are brand new parts except for the video card:

asus P5Q-PRO Q6600 (G0 Stepping)
two WD 640gig se16 (WD6400AAKS)
8 gigs of Mushkin HP2 6400
EVGA 6600GT

Thanks for your help! :thumbsup:

 

[QuadDamage2k]

Don't use speedfan

use realtemps or corespeed

my speedfan has said 123c before and -7c it's just not that good
I use it to monitor my Hd's from time to time

 

[Machine350]

I use Coretemp or HWMonitor. Speedfan generally isn't recommended.

 

[brokenlegs]

I thought Speedfan was giving me funny readings so I ran HWmonitor at the same time. Both programs registered the temps over 100.

I'll try realtemps and corespeed as QuadDamage suggested

 

[BlueAcolyte]

Have you felt it yet? Like touched the heatsink?

 

[zefyx]

Originally posted by: BlueAcolyte
Have you felt it yet? Like touched the heatsink?

If he did at 120c, he prolly wouldn't be typing the above message

 

[faxon]

yea usually the 2 to use are realtemp and coretemp as far as CPU temps go. speedfan gave me really odd readings on a few other systems so i stopped using it lol

 

[BonzaiDuck]

You weren't specific about "which" temperature. You say the CPU cores show 52C at load (which is good).

So if it's your motherboard sensor, which you seem to imply, it could be any of several things:

1) a bad sensor. Not by itself a serious problem worth addressing through RMA, etc.
2) a bug in BIOS that can be fixed with a BIOS update (especially if you go to the mobo user forum and post panicky messages -- to wait until the mobo-maker pays attention and releases a new BIOS version.)
3) using the wrong software that doesn't read the sensors properly.

 

[brokenlegs]

I tried coretemp and realtemp as suggested.

The coretemps (Tjunction) are all fine. It's the TCASE reading that's throwing me off.

Supposedly TCASE is the CPU reading I see in BIOS, but I obviously I can't see what BIOS reads when I'm testing with Prime95

So that's where Speedfan and HWmonitor come in....but the reading for TCASE is still wacky (over 100C) but my computer is stable overnight under load.

Any ideas? I guess all I'm looking for is an accurate TCASE reading!