Abit IP35-Pro + Core 2 Quad Q9450 + Handbrake = HOT!

[taltos1]

I have a Abit IP35-Pro + Core 2 Quad Q9450 (2.6ghz) and when I encode some file using Handbrake my Abit uGuru reports my CPU is 75-76 Celsius. Is that too high? What are the same ranges for this CPU.

My normal idle CPU temp is ~ 40-45.

Thanks

 

[yh125d]

Intel's recommended temp for 3 years use is around 72c, so that's a bit warm yeah. Might want to get a better cooler. A few good, cheap ones that will cool that very well are the Sunbeam CCF, Xigmatek S1283, and OCZ Vendetta 2

 

[taltos1]

Where did you find that temp guide? Is it normal for a CPU to jump 25 degrees when encoding? Thanks a lot

 

[conlan]

Originally posted by: taltos1
Where did you find that temp guide? Is it normal for a CPU to jump 25 degrees when encoding? Thanks a lot

You can find Intel CPU specs here.

It is normal for temps to increase under load, what concerns me is your Idle temps. Under normal conditions they should be in the low-mid 30s even with a stock cooler. The higher your base temps, the higher they will go under load.

Try using RealTemp or CoreTemp and post back the results.

Also:

What is your ambient temp?
How is your case cooling?
Are you using the stock cooler? and if so is it properly mounted?

 

[F1shF4t]

Temps in the Intel specs are Tcase temps the individual core temps would be 5 - 10C higher. The Tjunction for these chips is 100C (or 95C if you want to believe Realtemp), this is the temp at which the chips should shut off, throttling should start a few degrees before that.

Just keep the core temps below 80C for quads (or delta >20C) under linpack test. (No other test seems to produce temps anywhere near linpack, however, sometimes there have been odd results when it doesn't work properly. eg on two E2180 and one E2200 that I have tried, IntelBurnTest didn't work properly.)
Generally both my G0 and B3 q6600s load up to about 77 - 82C under linpack using their stock coolers at stock clocks. (Sound like jets about to take off too )

Saying that your temps are too high for just encoding load.

As conlan suggested try using RealTemp or CoreTemp as they will be more accurate.
Are you using the stock cooler? Is it mounted properly?

 

[MichaelD]

OP: You didn't specify if you're overclocking and/or using the stock HSF. You've been given excellent advice so far.

Here's a question for you. When was the last time you blew the dust out of the CPU HSF and case intake/exhaust ports? You'd be amazed how much stuff accumulates in there after a year. Also, are you sure the fan on the HSF is still working? They do die, you know.

I have the same motherboard; I've found that at idle temps, uGuru reports considerably lower temps vs. CoreTemp, but at load, uGuru and CoreTemp are usually within 2-3C of each other. I trust CoreTemp exclusively.

I can tell you that a load temp of 75C is pretty high and something's wrong with your setup.

HSF is loose
HS fan is dead
Dust blocking HS fins
Dust blocking case air intake/exhaust
Inadequate airflow thru case

It's got to be a combination of those factors.

 

[taltos1]

I did some sleuth work and found that my CPU fan was ~600RPM. Which seems low to me. I rebooted and set my CPU speed to factory (it was OC'd about 5%) and now the fan is 1500RPM and CPU about 37C. Much better. I have a Sycthe Katana HSF. Odd, any idea why the fan would get so slow?