P4 Prescott running at 75C!

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Sam25

Sam25

Golden Member
Mar 29, 2008
1,722
29
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My Pentium 4 (Prescott) is running at 75C (167F). Is this temp too high?

I could invest in a better CPU cooler , if advised that is, since the stock Intel cooler is 5 years old now. The only one available where I stay is the Thermalright XP-90 CPU Cooler:

http://www.primeabgb.com/index...m_virtuemart&Itemid=53

Will it fit with the Socket 478mPGA? Also, should I invest in a better case to keep the airflow inside the case better? I'm currently using a CM Centurion 534 Plus case.

The P4 system specs are:

Intel Pentium 4 @ 2.4Ghz
Intel D865GBF Mobo
512MB DDR RAM
Sparkle 7300GT (512MB - AGP)
40GB Samsung
80GB Seagate Barracuda
CM Centurion 534 Plus Case

It would be awesome if someone could shed some light on this and clear my doubts.

TIA :)
 
P

porksandwich9113

Senior member
Apr 30, 2009
366
0
76
75C is way too hot, even for a prescott.
Is this an idle temp or under load temperature?

Some things that might help
- New application of some real thermal paste. Something like Arctic Silver 5 is much better than that stock crap they plaster on the HSF. Costs 5 dollars for a tube.
- Third party HSF will definitely help in your temps. Generally a socket 478 HSF will fit a 478 socket type.
You will probably need a mounting kit. (usually comes with the HSF) And the first time you install one can be a little adventurous. :)
 
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Plester

Diamond Member
Nov 12, 1999
3,165
0
76
i would NOT spend another penny on a prescott based system if i were you. you can buy a dual core celeron and a good G31 based board for $80-90, same as you would spend on a cooler and a case for the prescott, and your new system wouldn't cause brown outs or fires.
 
TuxDave

TuxDave

Lifer
Oct 8, 2002
10,571
3
71
Got any extra thermal paste or arctic silver laying around? I would redo the application and see if it gets better.
 
zephyrprime

zephyrprime

Diamond Member
Feb 18, 2001
7,512
2
81
Just reseat the heatsink with some new heatsink compound. That should help you out.
 
Soulkeeper

Soulkeeper

Diamond Member
Nov 23, 2001
6,731
155
106
I had a prescott and the Same heatsink
those temps are inline with what I got.

Once your ambient temps get up there the thing becomes a furnace.
My suggestion would be to upgrade to a new 45nm cpu if you can.

If not then get a higher rpm fan and keep an eye on dust buildup (earplugs might be needed too )

 
GEOrifle

GEOrifle

Senior member
Oct 2, 2005
825
15
81
I'm runing with PIV 3.4 GH PRESCOT OC to 3.74 GH with ZALMAN 7700 and temps are 85F, i guess it's 30C, i have 4 x 120 mm fans in + 2 x 80mm .
 
Sam25

Sam25

Golden Member
Mar 29, 2008
1,722
29
91
Okay, so I have decided to buy the Thermalright XP-90 CPU Cooler and also put a fresh layer of thermal paste on the processor. Hopefully that will bring the temps down by quite a margin. I'm going to use a Panasonic 92mm fan with the XP-90.

Many thanks to everyone who helped! :)

Edit: Nope, decided on first trying out with a fresh layer of thermal paste and re-seat the stock HSF after cleaning it well. Not going through with shelling out $42 on the Thermalright XP-90 CPU Cooler just yet.
 
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AstroGuardian

Senior member
May 8, 2006
842
0
0
Don't waste money for a new HSF. Those temps are just fine for the Prescott! Just forget about it. It's not a big deal. Prescotts were known for operating at high temps. That whole cpu Intel Netburst architecture was running at high temps. So save your money.
 
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Dizzious

Junior Member
Sep 17, 2009
3
2
66
You probably don't need a new heatsink. The XP-90 is a good choice, if you already have it (meaning if it's already yours, and isn't being used, and you don't have to buy a single thing in order to mount it on your chip).

Anyway, you don't need a new heatsink. There is an easy fix for your problem:

-Verify that your cpufan is working properly. Then, open your case and use a can of compressed air to blow all of the dust out of the cpu heatsink.

Temps should drop down to the 40c range, even on a stock cooler (as long as you properly applied the thermal compound in between heatsink & chip when the heatsink was originally mounted).
 
I

ImDonly1

Platinum Member
Dec 17, 2004
2,357
0
76
My 2.8E Prescott I used to have ran at 48-52C idle. This was with a Zalman 7000B AlCu heatsink. I don't think the case had very good airflow though. Maybe like 61-65 at load/gaming. Don't really remember.
 
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AstroGuardian

Senior member
May 8, 2006
842
0
0
Dude, that CPU is not Prescott. It's Northwood. The Prescotts have 2mb of cache, FSB800 are clocked 2.8GHz and above. So this CPU is not a Prescott. I didn't see it was 2.4GHz cause i thought 2.8 or more. At 2.4 GHz it's damn hot.

But i don't get it. If the stock cooler is taking heat so slow that means it's either dusty or missing a thermal compound. Also some of the latches may be broken. Another factor is whether the sensor reports the correct temp.

Sam25, try touching the heatsing under load and see if you can hold your finger for more than 5 secs. If you can hold it that means that there is no good contact between the CPU and HSF and that something must be done. If you cant hold your finger means that the HS is hotter than 60 degrees and means that contact is good and you don't need to remove the HS. Just make sure it's not dusty and that enough air flows.
 
Lemon law

Lemon law

Lifer
Nov 6, 2005
20,984
3
0
I for one think AstroGuardian hit an issue with dust. Because when you can't remove the fan, it makes it difficult or impossible to clean out the dust that keeps being pushed into the fins of the heatsink that are the final link in removing CPU heat.

As I post this I do have an intel Pentium D heat sink and fan in my hot little hands, the fans is held by easily broken plastic clips that can be pried out when the heat sink and fan are removed. But it would be far easier and understandable if it was held in by screws. And it really pisses me off at intel, their heatsink was inadequate when brand new, but totally failed when dust was added over only a year. At the end I had to underclock to keep the system running as idle temps hit 70C plus. As I tried and tried to clean out the dust.

With a not big replacement heat sink and fan, the cpu now runs cooler than it did brand new and at 60% of the fan speed. And for the first time I can do a 10 minute run of primes 95 without cracking over 70C, and with the intel heat sink I always quit when, brand new, the CPU hit 80 C and still rising with the intel stock cooler. And with my wife's average use, it rarely cracks 55 C. And it now idles at 46C. Not a bad improvement for a heat sink and fan that retailed at $20.00.

The other real bonus is the lack of noise, when intel fan speeds went over 4000 rpm, it got really really annoying. For any that are interested, the CPU in question was is Pentium 915 D Pressler.
 
Sam25

Sam25

Golden Member
Mar 29, 2008
1,722
29
91
Looks like the problem is solved for now!

I took out the stock heatsink + fan and cleaned it. The heatsink was practically clogged with dust accumulation!! Next, I re-seated the heatsink + fan back in place after applying a fresh layer of thermal paste on the processor. After this process the CPU temps are much, much lower at 42-46C. :)

Thanks again for all the help folks! :beer:

 
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