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Processor Heat Jumps Really Fast on Load

post #1 of 8
Thread Starter 
Hey Im kinda a n00b to Overclocking but I know the basics well enough.

Anywayz I noticed that my Pentium D 925, jumps from its idle 45 to 60 (DANGER) in less than 10 seconds when Loaded. In Fact Speed Fan merrily shows temperatures of 65-68 over time (63 is supposed to be bad) ...........

So What Im confused about is that , why does it jump so fast ? Its barely overclocked (in fact its still clocked with the range of other Pentium D's).
Im using some Cooler Master CPU Cooler (which strangely isnt on the site) and Stock Thermal Paste.

Also what do I do ? Replace the Intel Paste ? Any ideas ?
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post #2 of 8
You need a new heatsink

Pentium D's are based on the Netburst architecture which puts out a LOT of heat.

If you don't want to buy a new heatsink go back to stock.
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post #3 of 8
Thread Starter 
ehhh .... Thats still doesnt explain why my Proccy is getting hot so fast. Besides I still havent got the Proccy Speed beyond other Pentium D's like the 945.

Where have I gone wrong ?
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post #4 of 8
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post #5 of 8
Quote:
Originally Posted by RDx View Post
ehhh .... Thats still doesnt explain why my Proccy is getting hot so fast. Besides I still havent got the Proccy Speed beyond other Pentium D's like the 945.

Where have I gone wrong ?
its very normal for a CPU temp to rise really fast under load, nothing out of place there. You could probably re-seat your HSF with some good thermal compound (like AS5) and get better temps. Also like the temp going up fast, when the load is finished, the temps should also drop fast.

Oh I see in your sig you are using ntune? ntune is the worst thing to use when overclocking, it will set your voltage too high that maybe your problem right there.
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post #6 of 8
Quote:
Originally Posted by RDx View Post
ehhh .... Thats still doesnt explain why my Proccy is getting hot so fast. Besides I still havent got the Proccy Speed beyond other Pentium D's like the 945.

Where have I gone wrong ?
Your going from 0% load to 100% load - it's heat output is going up by a massive amount, maybe 4 times?

And it's a basic, aluminium heatsink with a crappy fan. Your probably fine up to 70C anyway.
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post #7 of 8
Yea pentium D's put out a hell of a lot of heat like Prosser stated. And like mtbiker said, the heat rise is perfectly normal. It happens on all CPU's, because you are rapidly changing from idle to load.

Also, the stock thermal paste isn't doing you any good. Pick up a tube of AS5 and see if that drops your temps by a couple of degrees. But with that cooler and that CPU you will never achieve decent temps.

Have you thought about lapping the HSF and CPU? That would be your cheapest method of getting the temps down, if you use decent thermal paste along with it.
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post #8 of 8
Thread Starter 
Ok Im getting that lapping done when my Artic Cooling MX-2 Arrives. Also another n00b question ....

Also I realised why the jump was so fast ....... Speed Step was on! So when I used the computer, the Speed would jump from 2.7Ghz (227x12) to 3.4Ghz (227x15) when it was utilised. Anyways thanks for the help ...........
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Hard DriveCoolingOSMonitor
160 Gb + 250 Gb Hitachi Deskstars + 1TB WD Blue Thermalright Ultra-120 Windows 7 AOC i2251FWe 
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My System
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CPUMotherboardGraphicsRAM
AMD Phenom X6 1055T 3.7Ghz Gigabyte 880GM-UD2H Radeon HD4250 Onboard (Temporarily) 2*2GB Corsair XMS3 DDR3 - 1798 Mhz 
Hard DriveCoolingOSMonitor
160 Gb + 250 Gb Hitachi Deskstars + 1TB WD Blue Thermalright Ultra-120 Windows 7 AOC i2251FWe 
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