[Prime] hot CPU!

Jud McCranie Wed, 16 Feb 2005 21:06:37 -0800

I've had Prime95 running on a 2.4 GHz P4 for over a year (a Dell 4550). When I turn Prime95 on, I can hear the fan(s) speed up, but it keeps reasonably cool. I just started running Prime95 on a 3 GHz P4 with hyperthreading (a Dell 4700), and it shows 49-50% CPU usage. However, it makes the computer run very hot! The top of the case us warm to the touch, and the air coming out the back is almost like a hair dryer. If I stop Prime 95 for a while, it cools off to where the case is no longer warm and only a little hot air is coming out the back. When Prime95 is off on that machine, there is only a little more hot air coming out than my older computer with Prime95 running.

Is a 3GHz P4 supposed to be this hot?  Is it bad for the machine?


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[Prime] hot CPU!

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