I used to run the old seti client but stopped doing so on this machine as the temperatures of the CPU got to high and course it to lock up.
While SETI get the server issues sroted out I have started doing some of that predictor work and noticed that the temperature of the CPU does not gin more than a few degrees. Should I expect the same from when bionc does some seti work ? Or will i get melt down again?

Your CPU will be under full load while running S@H.

maybe helpful ;-)
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nice sunday
Bei der Eroberung des Weltraums sind zwei Probleme zu lösen: die Schwerkraft und der Papierkrieg. Mit der Schwerkraft wären wir fertig geworden.Wernher von Braun

I have an 2.8GHZ P4 B, while running SETI i only go up to 32C, which is great i have overclocked it to 3.46GHZ and it was stable for a couple of weeks, ever i damaged it or it was just that it was summer. It only reached 42C while runing SETI OC, but im guessing it was the heat, next i will buy watercooling and a 274W peltier which should cool it to -10C which will be great. if you don't want to go to the extreme like me :) just go out and buy the best heatsink depends what cpu uve got, up to xp3400+ or upto 3.6GHZ and also buy some Artic siver 5 works great.
Currently not overclocking :(

> I used to run the old seti client but stopped doing so on this machine as the
> temperatures of the CPU got to high and course it to lock up.
> While SETI get the server issues sroted out I have started doing some of that
> predictor work and noticed that the temperature of the CPU does not gin more
> than a few degrees. Should I expect the same from when bionc does some seti
> work ? Or will i get melt down again?
>
>

If your running that hot under normal conditions, it sounds like you should look for a better cooling system for your computer. Try looking for a better heatsink to help keep that CPU cooled down and if you have a place to add aditional fan/fans to your case would also help.

I already have what is ment to be a better heatsink than stock. Plus 4 extra case fans.

Something tells me things are not right seeing as the temps get up to 51C surface and 95C internal (of the CPU that is)

> I already have what is ment to be a better heatsink than stock. Plus 4 extra
> case fans.
> Something tells me things are not right seeing as the temps get up to 51C
> surface and 95C internal (of the CPU that is)

Do you know what is the CPU temperature without any load? This should be in the range of 35 to 40°C. If it is already higher, there might be a problem of transmission of heat between the CPU and the cooler.
I am using a P4 HT 2.4GHz overclocked at 20% on an Asus P4P800 MB. Without load the CPU measured by AsusProbe is only 30°C.


Greetings from Belgium.

it goes down to around 45C

> it goes down to around 45C

This is quite high already.
If you are familiar with PC technology, I would suggest to take a look inside the case and be sure the cooler is well fixed to the CPU. Have also a look to the heatsink to be sure this one is not full of dirty. You might also try to use thermal compound to have a lower heat resistance between CPU and cooler.

thats all been done. I think i just have a rubbish heatsink

> thats all been done. I think i just have a rubbish heatsink

I am using the Zalman CNPS7000A-Cu, an excellent product. You can find the specs here. The Zalman CNPS7000A-AlCu is also a good choice.
If you want to switch to one of these, be sure to check the compatibility list of MB's.

Whats the average temprature of the room your computer is in?
If its under say 78F and having problems I would look for a Swiftech
heatsink that fits your motherboard. If its 80F room temp or over,
almost all newer air cooled CPU's start having trouble running stable
at 100% load (especially new P4's).

> Whats the average temprature of the room your computer is in?
> If its under say 78F and having problems I would look for a Swiftech
> heatsink that fits your motherboard. If its 80F room temp or over,
> almost all newer air cooled CPU's start having trouble running stable
> at 100% load (especially new P4's).

Room temperature is around the 68-77°F.
At 68°F, my CPU reaches at full load some 113°F. My Zalman is running only at 2000RPM. I use only 1 case fan, the Papst 8412NGLE just in front of my HD.

Greetings,

According to Intel, the Thermal Spec for P4HT processors may be a lot higher than the aftermarket heat sink manufacturers would like you to believe.

The thermal specification is the temperature at the critical point on the die and usually represents the hottest point on the processor. Therefore, the Maximum thermal specification represents the maximum temperature for reliable operation of the processor.

Here are examples of the Thermal Spec of some common processors:

SL793 3.40 GHz - 68°C [154.4°F]
SL6WG 3.20 GHz - 70°C [158.0°F]
SL6WK 3.00 GHz - 70°C [158.0°F]
SL6WT 2.80 GHz - 75°C [167.0°F]
SL6WR 2.40 GHz - 74°C [165.2°F]

Cool your processor at or below the Thermal Spec and you shouldn't have any reliability issues.

Here is a link to Intel's P4 Processor Spec Finder:

http://processorfinder.intel.com/scripts/list.asp?ProcFam=483&CorSpd=ALL&SysBusSpd=ALL&PkgType=ALL


Paladin: I could always beat him. I let him think he was faster... because it pleased him.

>Room temperature is around the 68-77°F.
>At 68°F, my CPU reaches at full load some 113°F. My Zalman is running only at
>2000RPM. I use only 1 case fan, the Papst 8412NGLE just in front of my HD.


That is still hotter than than I would want to run it.
This may sound like a no brainer, but I have seen it before so I will ask. Did you pull off the protective film they put on new heatsinks, before mounting the newer heatsink.
I would remove the heatsink to look and make sure nothing is interfering with a good even contact with the CPU. Make sure the base of your cooler is clean and of bare metal and apply a thin layer of good quality thermal compound.

It is a good heatsink that performs well, but Swiftech makes the absolutely the best air coolers on the market.

A fan in the rear of the case blowing out would do alot to help keep the heat pushed out, without adding a lot of extra noise.
My temps are keept below 100F all the time.

> That is still hotter than than I would want to run it.
> This may sound like a no brainer, but I have seen it before so I will ask. Did
> you pull off the protective film they put on new heatsinks, before mounting
> the newer heatsink.
> I would remove the heatsink to look and make sure nothing is interfering with
> a good even contact with the CPU. Make sure the base of your cooler is clean
> and of bare metal and apply a thin layer of good quality thermal compound.
>
> It is a good heatsink that performs well, but Swiftech makes the absolutely
> the best air coolers on the market.
>
> A fan in the rear of the case blowing out would do alot to help keep the heat
> pushed out, without adding a lot of extra noise.
> My temps are keept below 100F all the time.

Yes I pull off the protective film.

I am quite happy with the results I have concerning cooling performance. I could have better, especially by using a second fan to extract the air from the case. But for now I leave it like it is.

> next i will buy watercooling
> and a 274W peltier which should cool it to -10C which will be great.

You need to be careful mixing liquid cooling and peltier. Condensation is going to be a major issue in a hybrid system like this.

> Whats the average temprature of the room your computer is in?
> If its under say 78F and having problems I would look for a Swiftech
> heatsink that fits your motherboard. If its 80F room temp or over,
> almost all newer air cooled CPU's start having trouble running stable
> at 100% load (especially new P4's).
>
The room is around 20C i guess. THe chips is an AMD Athlon, not a P4

I considdering going to H20 and geting that big blue tower heatsink. I like the idea of no fans and a quite system

> I used to run the old seti client but stopped doing so on this machine as the
> temperatures of the CPU got to high and course it to lock up.
> While SETI get the server issues sroted out I have started doing some of that
> predictor work and noticed that the temperature of the CPU does not gin more
> than a few degrees. Should I expect the same from when bionc does some seti
> work ? Or will i get melt down again?
>
>
Running a p4 3.0 standard heatsink, mid tower case with 1 120mm fan, room temps varies from 75 to 85 and highest temp I have have was 120f, runs like a dream....

Now some they do and some they don't
And some you just can't tell
And some they will and some they won't
With some it's just as well

Goodbye Stranger
Supertramp

> Running a p4 3.0 standard heatsink, mid tower case with 1 120mm fan, room
> temps varies from 75 to 85 and highest temp I have have was 120f, runs like a
> dream....


whats that in real money... about 49C i think.