BIOS CPU reading showing 75 degrees ! Surely this is TOO hot ?

[dreamteck]

It's a 478 socket 3.4 ghz CPU... with BIOS fans on full always.

Runs in a shuttle 75G2 with 3 HDD ! two of them are 10,000 rpm Raptors (not in raid)

BIOS on start says 70 - 75 degrees. That's crazy for cold start-up.

at full load my CPUCool software says the same... 75 degrees !

The system was pre-tested at 100% full load for 24 hours without falling over (so I've been told) I'm not gettitng crashes.. but i do tend to feel a bit of slowdown now and then.


In your experience is this reading dangerously high ? or just high.

[asterix]

That sounds too high to me - especially from a cold startup.
It may run fine but hotter cpus burn out quicker. So in 6 months/ 1 year or so you will probably notice it slowing down .
Check your software manufacturers website just in case Im wrong but your cpu should be sitting on 50-60 degrees C. Look at alternative cooling systems or add more case fans. You're not over clocking the cpu?
Also another imprtant issue for us vjs is ram. So check out some RAM shields while you're at it.

[dreamteck]

okay asterix. ta

[vjrei]

2 years ago I opened the CPU of my powerbook and the processor was literally fried, I mean, you couldn't read the logo and the aluminium on top was melted and blended. 2 years later the computer still working fine as always.

[dongbamage]

fan and heatsink clean? try removing the fan and reapplying a layer of thermal compound (artic silver or such if u can get it)...

u have ure case side on? u should keep it on to maximize air pull through, pulled in at bottom front of case, exited at top back of case, make sure as few things obstruct this vital air pathway as poss (ie tie up cables etc)...

u reading degrees C and not degrees F right? :P

[sleepytom]

its a shuttle so the cpu is cooled by the custom heat pipe thingy - no heatsink fans..

make sure that the fan at the back is working. leave it running doin g something cpu intensive for a few hours and see if the temp is higher - maybe a bad sensor apart form anything else.

[Meierhans]

Originally Posted by sleepytom

maybe a bad sensor apart form anything else.

Seems to be the only reason I can imagine if 75 ?C is shown right after start up.
Maybe you could touch the CPU carefully while running. If it hurts your finger its to hot. No, touch the CPU, not the fan. Fan always hurts.

[robotfunk]

have you ever seen the inside of a shuttle? how do you see getting your finger in between the cpu and heatsink? maybe i have fat sausage fingers.

[VJ Sleepy]

If the reading is not changing while in bios or 100% load and sits at 75deg that i would agree with sleepytom about a bad sensor.

[seex]

My shutlle (sb81p) has a few settings in the bios regarding the temp of the CPU, it is set to start the fans to full throtlle after the cpu heats over 48c. Once i had the thing overheat due to poor ventilation, i went into the bios to see what was going on and the temp was 72c, the computer didnt want to start up again, it didnt get to the Win logo before it restarted. The next day it worked perfecly, so my guess is that the shutlles have a fuse that refuses the computer to startup if the cpu is too hot.