Cooler than I thought

[Scout]

I just put together a P4 system for a friend using a Prescott 3 GHz. processor and am surprised to see it running much cooler than a previous Prescott system I built. This rig idles in the mid 40's and goes to about 55 C under full load.

The processor is an SL7E4 which is a D0 stepping which is speced to run at 1.25 to 1.4 volts. My Abit IS7 (thanks Crashman) runs it at 1.25 volts, sagging to 1.2 under 100% load... but it seems to run flawlessly even at that low voltage. I'm using the stock Intel cooler but I scraped off the pad and used Arctic Silver V.

My old Prescott went to 70 C under load... a nice improvement for the better!

Scout
700 Mflops in SETI!

 

[endyen]

You dont say what mobo the new build is. Abit is more accurate than Asus, when it comes to sensors, so the difference could just be in the way the sensor is read.

 

[Scout]

This build used just the regular IS7.

The other board was an ECS board and you're right, these sensors can vary quite a bit... but I figure 15 degrees indicates a real difference, probably beyond sensor error.

The low voltage really makes the difference I think.

Scout
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[Cyrus]

Just another system. I have 3.2 GHz SL7KL D0 steeping, runs on Asus P5GD1 with standard pad. I didn't change the voltage and it never ran above 55 C, full AC room though. But the fan noise is quite annoying me. Is yours too?

 

[diplomat696]

I have a P4 Prescott 2.8Ghz running on a asus p4c800e deluxe and it idles at a similar temperature to yours, about 44 degrees centigrade idle and a maximum of 55 when under a heavy load. These temperatures i have seen using not only the asus probe software but also with mbm5 (motherboard monitor) the case temperature for my pc is around 33 degrees.
Not too bad i dont think, if i overclock 10% i might get a 1/2 degree increase in idle temp which i would say is also pretty acceptable.
The people who have issues with temperature on prescotts perhaps either dont have adequate cooling or maybe the temperature problem was being gradually reduced by later versions of the prescott cpu....who knows.....

 

[Scout]

The fan noise isn't bad on this one. I know these Intel fans speed up at higher temps and when at max speed, they are annoying, but this one seems to stay at a slower, quieter speed...

I have a CeleronD 335 that I overclock (Prescott core and Intel HSF) and the other day I noticed the fan was louder than I remembered it. So I took off the side panel and the fan quickly slowed down as the cool air came in. I had disabled the case fan since it was noisy... oh well... connect the case fan back up!

Scout
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