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Intel Heat Up's N Downs

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russmon   12-25-2003 at 03:50:49 AM

Just built my first P4 in awhile and it runs really cool at idle. OC'ed to 3.13 and still runs at 23C@idle. However, when gaming it heats up to like 39 and then drops quickly when gaming is over.

Compared to my AMD2500 which runs between 43-51 idle and gaming.

It seems there is a larger temp variance in the Intel's. Is there a reason why?

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zpyrd   12-25-2003 at 07:04:30 AM
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I don't think you have any problems. By the way what program are you using to read the cpu and system temperatures with? Also what is your motherboard brand and model number?
I have a P4 3.06 not overclocked and it runs at 44C idle and 55C loaded. However I am not using the stock Intel cooler. I'm using the Thermaltake Spark 7 all copper cooler and a three position fan speed switch. I keep the fan speed on low to keep the system noise down.
I found the boxed Intel heatsink fan too noisy.
I once got the cpu temp up to 59C with the heatsink fan set to slow speed using the Sandra Burn In test.
Slow speed is 3200rpm, medium is 4800rpm, high is 6200rpm.
High speed sounds like a hairdryer but it keeps full load temps below 46C.
My system has two intake fans that have an air filter, an exhaust fan, two fans inside the power supply, cpu cooler fan and a gpu cooler fan. I find my system very noisy. My system is packed with hardware.

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Scout   12-25-2003 at 06:20:11 PM
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I've noticed the same thing with P4's as well. I think what's going on is the Intel takes the temp off the internal diode so it changes quickly while many AMD boards still have the sensor under the CPU socket so it changes slowly.

I've tried to address the AMD diode with Motherboard Monitor and usually don't get a reading. I'm not sure why the Mobo manufacturers don't always activate the AMD diode readings... cause I think all the newer Athlons have these diodes...

Scout
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Scout   12-26-2003 at 07:45:37 PM
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Really? I hadn't heard that... I thought the difference was the Intel chips had on-chip circuitry that auto slowed or shut down the processor and the AMD chips didn't. AMD relied on the motherboard to sense the thermal diode and shut it down if it overheated.

Scout
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