Hot Prescott

Hot Prescott

Post by Guus Ellen » Fri, 15 Oct 2004 17:48:33

My Prescott CPU gets quite hot I think, above 60 degrees Celcius. Idle it's
around 50-55, but when loaded suddenly temperature could rise to 66 degrees
Celcius. It once went up to 69, which is the maxiumum temperature Intel
gives. Fan stays at around 3000 RPM. I remounted the heatsink, but it seems
to have even gotten worse. Yes, I used silicon paste to remount the

What are opinions on this subject?

Hot Prescott

Post by JK » Fri, 15 Oct 2004 22:28:23

My opinion is that people should buy an Athlon 64 instead.


Hot Prescott

Post by Judd » Fri, 15 Oct 2004 23:39:54


His opinion is worthless

Hot Prescott

Post by MyndPhly » Sat, 16 Oct 2004 01:03:32


Lots of factors enter into the equation. I would expect thermal paste to
perform better than the thermal pad supplied with the retail heatsink.

Did you thoroughly remove the old thermal pad from both the heatsink and
processor surfaces?

Before applying the new thermal paste, were both surfaces completely free of
oils and crud? (Tuner or switch cleaner does a good job. Try a can of Archer
Cleaner/Degreaser. Cheap stuff and it does very well.)

When you applied the new thermal paste, did you use it /*very sparingly*/
and coat both surfaces using a clean applicator (not your fingers)?

Just to give you something to compare against, I have two systems with the
Northwood 3.0 GHz. Same components across the board (no pun intended).
Different cases (an antique from the PII days versus a "thermally
advantaged" case), different PSU's (an el cheapo carryover from the very
early P4 days versus something more modern), and different heatsinks (one
with the retail heatsink and thermal pad, the other with a Zalman all copper
heatsink and a dab of Artic Silver).

Room temperature = 77F.

The system using the old case, PSU and retail heatsink tends to run 55C at
half load. There is an 80mm fan in the front and a pair of 5mm fans strapped
to what few breather holes are located on the back. The CPU fan tends to run
3300+. When the system goes idle, the temperature comes back to around 50C
and the CPU fan down to around 2800+.

The other system with the thermally advantaged case and the Zalman heatsink
tends to run at 43C under an identical half load. There is a 92mm fan in the
front and a 120mm fan in the back. The CPU fan tends to run 2,600+. When the
system goes idle, the temperature comes back to around 36C and the CPU fan
down to around 1,200+.

Just for grins I put the newer configuration under a full load for an
extended period of time and the CPU temp wouldn't break 50C and the fan
wouldn't break 2,900. Placing the old configuration under full load will red
line everything in short order.

Hot Prescott

Post by vax, 900 » Sat, 16 Oct 2004 02:03:02

It is the way Proscott is. You should have done some research before you buy

vax, 9000

Hot Prescott

Post by ronisotir » Sat, 16 Oct 2004 05:06:31

I bought a Prescott 3.2 few weeks ago.
I installed with the fan from Intel and
the tmperature were same as yours.

What I did was going and buy a new cooler :
CoolerMaster Jet4 ( ).

I made a deep clean of the Intel termal paste
using alchool. I used this thermal compound
Artic Silver 5 ( ).
I spread evenly the thermal compund over the cpu taking
care not to put too match, I used a plastic cutted exactly
the size of the processor metal contact to do that.
Than I installed the cooler.

Ma case has a lateral fan-emplacement wich stays above the CPU.
I put a 8cm fan which through the air from outside->inside.
That conforms the Intel recomandation for Prescott (in general
for 0.9 processors)

After that I have 38-42 in idle and max 55 in burn.

Hope you understand my poor english.


Hot Prescott

Post by Dave » Sat, 16 Oct 2004 08:36:38

Those are about the temps that Intel reports as average in useage for the
Prescotts. Now you know why they still sell so many Northwoods.


Hot Prescott

Post by vax, 900 » Sat, 16 Oct 2004 11:38:52

Intel's P4 and Prescott are designed to achieve performance goal by speeding
up the clock. AMD's Athlon and AMD64 are designed to achieve performance
goal by doing more per clock tick. However, Intel and AMD's 90ns technology
has energy leakage problem when the clock runs fast. Physics worked against
Intel's approach, and favored AMD's. Thus we can predict that AMD's fastest
CPU will be ahead of Intel's for a while, till Intel gets a new design
based on its PIII or PM.

vax, 9000

Hot Prescott

Post by Yousuf Kha » Sat, 16 Oct 2004 15:12:13

It's because Intel decided that it knows better than the whole rest of the
semiconductor industry and so it decided that it didn't need to adopt new
manufacturing techniques which would reduce electrical leakage from its
circuits. So while AMD and IBM have already adopted the Silicon-On-Insulator
technology, Intel said it saw no value in that technology. Now it's got
processors that leak (i.e. wastes) almost as much electrons as it puts to
good use. IBM and AMD had both started using SOI technology in their last
miniaturization technology (at 130nm), and so they already have experience
with it at the current generation (90nm). Intel probably won't start using
it till 65nm, even though it needs it right now.

Also, Intel kept recklessly increasing clock speeds for marketing purposes,
and it increased the speed to the point where they've now hit a wall and
they are now wrecked.

Yousuf Khan

Hot Prescott

Post by Guus Ellen » Sat, 16 Oct 2004 19:11:33

Thanks a lot for the replies.


Hot Prescott

Post by Alan Walpo » Sat, 16 Oct 2004 21:44:37

Thanks also for the replies also that was very interesting. I brought
a northwood last year and now I'm really glad. It was actually cheaper
last year. Looks like the next processor I buy will be AMD unless
intel gets this heat problem solved.

Guus> Thanks a lot for the replies. "Guus Ellenkamp"

Hot Prescott

Post by Lee Wau » Sun, 17 Oct 2004 00:28:29

I have a 3ghz northwood too and it runs great. It is running at 33 C right
now and only gets up to 48C while running games. Once though it got all the
way up to 55 C. I am using the stock heatsink and fan it came with and I too
will skip all prescott cpu's and wait until the dual cores come out. This
rig works fine and I don't need any new upgrades for quite some time.

Hot Prescott

Post by Bill David » Sat, 23 Oct 2004 20:27:43

Your English is perfectly clear and your links are useful. Thanks.

bill davidsen ( XXXX@XXXXX.COM )
SBC/Prodigy Yorktown Heights NY data center
Project Leader, USENET news