Need some help cooling a Pentium 4

j1b5c

Member
Jun 27, 2002
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Ok I have the following system set-up.

Pentium 4 3.4 Ghz Prescott.
Intel Desktop Board PBL915 (http://support.intel.com/suppo...top/d915pbl/index.htm)
Antec 380 watt TruePower Sonata Case (http://www.antec.com/us/produc...ails.php?ProdID=15138)
Ati Radeon X800 XT Pci-E

I've never had a problem using stock coolers before this rig but right now I'm using the fan that came with my motherboard and I only have the one rear 120 mm fan that comes with my Antec case.

My case is upstairs (75 degrees Fahrenheit temps).

In the BIOS(I have the latest firmware), the temp for the processor is anywhere between 53 degrees C and 62. The system temps are around 35 - 41 degrees. Can anyone point me in the direction of a fan that would lower my temps (for the case or for the cpu) that will work in my system? Or maybe to some websites that will give me info on what to do? My system is running stable but I'm still worried....

Wish I went with an Athlon...set up my friends last week and he doesn't get above 44 degrees........

Thanks a bunch,

Jason
 

logansan

Junior Member
Dec 23, 2004
3
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0
Try Zalman CNPS 7000Cu or 7700Cu. My prescott never went above 55C(Prime95 torture test) and it idles at 34C. Plus i have an air intake duct right over the coole pumping fresh air from the outside.
 

dc5

Senior member
Jul 10, 2004
791
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you can't go wrong with stock coolers and the prescotts tend to take more heat than other CPUs. i wouldn't really worry about your temps for now. if it really bothers you, you could try re-seating the heatsink or just buy a zalman cnps 7000
 

Operandi

Diamond Member
Oct 9, 1999
5,508
0
0
Those are pretty normal temps for that CPU but either a Thermalright XP-90/120 or Zalman 7000/7700 will give you better temps.
 

akira34

Golden Member
Jun 26, 2004
1,531
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That's a hot (temp wise) system there... With my processor fan spinning 'normal' speeds (not trying to be silent) I typically see 31-34C... In silent mode, it gets closer to the 40C mark (fan cannot be heard and is spinning close to 1000rpm at times, if not slower) at idle. I see the normal increase between idle and load temps for air cooling (10-15C over idle)...

Since intel chips are supposed to run cooler than AMD chips (last I heard, but that could be out of date info there) I'd say you should either increase the air flow inside the case, or improve your processor cooler...
 

Thor86

Diamond Member
May 3, 2001
7,888
7
81
Since you are using the Antec Sonata with the 120mm rear fan for exhaust, try using a normal 12v power molex as opposed to the 5v fan-only power molex if that is what you are using.
 

LouPoir

Lifer
Mar 17, 2000
11,201
126
106
Ive had similar experience with the LGA processors. Ive tried 3 motherboards and 4 coolers and have come to one conclusion. The application of AS or thermal compound, unlike any other processor, is critical. I usually apply a very, very thin coat and was experiencing what I consider high temps for a P4 processor. I have owned many S478 Northwoods and Prescotts but the lga775 was much HOTTER. I applied more AS than usual and had the temps drop 10c using the same coolers.

IMHO

Lou
 

Id studios

Member
Dec 28, 2004
29
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The LGA775 are know to run hot, as you prob. read now. I too have a prescott and i too am coming to terms with the increase in temp, but ppl assure me that its normal, but nethertheless i will be purchasing a THermalRight XP-120 to cool things down.

Below is an article posted in the OC form earlier - comparing 4 main cpu coolers.

http://www.overclockers.com.au/article.php?id=327068

Hope it helps




 

j1b5c

Member
Jun 27, 2002
64
0
0
Alright, thanks a lot guys. Although it maybe normal for my cpu to have those temps, I'm gonna get a new cpu fan (the zalman if it fits), try out the molex and apply some more thermal compound with the new fan. I'll post back what results I get.
 

BonzaiDuck

Lifer
Jun 30, 2004
16,457
1,942
126
ID Studios: Thanks for posting that link. More information of this type is better. The test-bed and controlled conditions were consistent, and the comparisons were thorough. I'd be curious how the same test turned out for a ThermalTake PIPE101 with 120mm fan and adapter, but that's a little off the wall -- too troublesome for people who want to buy something in one package, or who wouldn't think of stepping off the beaten path and try a fan adapter. And they simply can't test everything in every combination.

My "experimental" system for over-clocking -- the "MOJO-1" -- has an XP-120. I'm trying to push my Northwood 3.0C beyond 3.675 -- equivalent to what the reviewer characterizes as 3.679 but with the same FSB/external-frequency setting. The memory is rated to go to 250 external frequency or DDR500.

Under those conditions, using the SUNON KDE1212PMB1-6A fan used in the review -- my load temperatures are no higher than 45C at room temperature of 20 or 21C. I installed a foam-board duct based on some "project" articles reposted here in one or more threads sometime in the last 4 weeks.

Some remarks about the review observations concerning the fan. I had one SUNON (same model) which had a more noticeable motor whine than a second identical fan purchased at the same time. Lubricating the bearings with a dab of teflon grease significantly reduced the motor noise, but the second fan is still more quiet than the first. I had a side-panel blow-hole, but I closed it because I concluded it would make the serial effect of the system fans work better with the foam-board duct. This reduces the noise quite a bit, and I need to add here that the case panel in question was prepared with Akasa PaxMate noise-deadener. At the full-throttle speed of 3,100 rpm and 108 CFM, under this particular configuration, I cannot agree that the SUNON is noisy. At a Speed-Fan setting of 75% or about 2,400 rpm, I can hardly hear the fan at all, and either way, the noise sounds like 90 to 99% air-turbulence "white-noise".

On the foam-board ducting mod. The better the cooler used, and the more effective the exhaust fans, the less stunning the drop in temperature the ambitious modder can expect from the ducting mod. Even so, it works: I count a 2 to 3C improvement in temperatures at the lower over-clock setting of 240 external-frequency and 3.60 Ghz. What I also note about my particular ducting mod is that the chipset and AGP temperatures -- measured by tape-on thermal sensors before and after -- are way, way down, from the mid 90's F to around 88F at a PRIME95 load. This is consistent also with a "before" temperature taken through "Display properties" from the nVidia 5950's own sensor at 39C at an over-clock external-frequence of 240 versus the "after" value of 32 to 34C at 245. Observe that all the AGP temperatures will seem low to most readers here, because the card has a Zalman ZM-80D passive cooling solution with the Zalman option fan integrated into the ducting air-flow.
 

j1b5c

Member
Jun 27, 2002
64
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Welp, it took me nearly 2 months to get around to it but I got a new heatsink. The results were outstanding. Just to let you know, as time passed my stock intel heatsink become worse and worse, it started idling about 57 degrees Celcius and on a full load it will go up to 69 degrees(I believe that's the highest I've seen)

After looking around a bit more I bought the Thermalright XP-90 w/the Vantec Stealth fan and used some Antec thermal paste and my idle now is 43 degrees celcius. Load is around 60 degrees celcius. Quite a difference I'd say! Thanks for the help guys. I now feel safe leaving my computer on while I'm away.