CPU overheating.

eb_5litre · 28-01-2005, 01:21 PM

Hi guys, I need some assistance.
Everytime I try to burn a dvd or make a movie with Pinnacle Studio my CPU temp skyrockets to 73c and freezes or resets the pc. It doesnt do it when i'm writing to a DVD, just when i'm reading it via DvdShrink etc.
Its done it everytime I try to make a movie with Studio Plus whether it be an Avi, Mpg or VideoCD.
The normal running temps are Cpu-47c/MB-31c with ~30c ambient.
I'm running a 3.0ghz P4 with Asus P4C800 and Zalman 7000 HSF.
I have 2 exhaust fans at the back, 4 inlets at the front (2 of which are blowing on the HDD ) and 2 on the PSU.

It doesnt overheat on a cool night.

Its really giving me the shits cause I cant do anything during the day.

Thanks in advance.

Paris Hilton · 28-01-2005, 01:29 PM

Underclock it?

DivHunter · 28-01-2005, 01:33 PM

take the side off and point a fan at it

xceler8shun · 28-01-2005, 01:39 PM

clean out all the dust and crud out of your HSF, get some decent thermal compound (Artic Silver whatever) or better yet, get some liquid cooling

svo347 · 28-01-2005, 01:39 PM

check the cpu chip & heatsink, sometimes it gets full of fluff etc.
undo the fan, use an old toothbrush & comb away any crap from the fins. The fan blades also get noisey from being out of balance from crap also.
If this fails, do what Fairmont99 suggested or its time for a cooling upgrade.

Steffo · 28-01-2005, 01:54 PM

First... what kind of Pentium 4 is it. Is it a 3.0GHz 512kb L2 cache "Northwood" or a 3.0GHz 1MB L2 cache "Prescott" ?

If it's a Northwood.. then I can't really understand what's going on.. 47°C normal operating temp is way too hot for a Northwood. If it's a Prescott.. well, that's understandable.. I like to call those "Preshot" because.. they are very hot.

If it is a Prescott.. and you're experiencing this kind of heat... you might want to get this heatsink...

http://pccasegear.com.au/prod798.htm

Thermalright SP-94

and this fan to go with it

http://pccasegear.com.au/prod1494.htm

Thermaltake UFO Fan

The fan is awesome.. comes with a speed controller.. 1300 to 3600rpm adjustable. At 1300rpm its 17dBA and 26.8 CFM and at 3600rpm its 47 dBA and 81.2 CFM. So... somewhere in the middle would be a good speed to run it at, both for your ears and CPU.

eb_5litre · 28-01-2005, 02:03 PM

Thanks guys.. ok here goes.

- Its a Northwood
- Ive taken the side off and pointed a fan at it but the Cpu temp stayed the same and Mb temp went up 2c.
- I have thoruoghly cleaned out the fins and fan and put thermal paste (thermaltake I think) on when I installed the Zalman. I did try going back to the stock HSF and the results were the same only alot noisier.
- I've already upgraded the heatsink... the Zalman is still near the top of the line HSF.

When I first built it the temp used to be cpu-29c/mb-21c ..... I'm not sure when exactly but it has gradually just gotten hotter. Maybe I should go back to a thermal pad instead of paste?

Steffo · 28-01-2005, 02:08 PM

Quote:

Originally Posted by eb_5litre

Thanks guys.. ok here goes.

- Its a Northwood
- Ive taken the side off and pointed a fan at it but the Cpu temp stayed the same and Mb temp went up 2c.
- I have thoruoghly cleaned out the fins and fan and put thermal paste (thermaltake I think) on when I installed the Zalman. I did try going back to the stock HSF and the results were the same only alot noisier.
- I've already upgraded the heatsink... the Zalman is still near the top of the line HSF.

When I first built it the temp used to be cpu-29c/mb-21c ..... I'm not sure when exactly but it has gradually just gotten hotter. Maybe I should go back to a thermal pad instead of paste?

No way!!! Pad's are shockers. That's extremley hot for a Northwood. I'd personally get the SP-94. If that didn't fix it... I'd start looking for a new CPU.

eb_5litre · 28-01-2005, 02:09 PM

Maybe its my videocard.... thats the only thing Ive changed in the past year. I went from a GeForce Ti4800 to a Radeon 9600XT.... it seems thats around the time it started having problems..

Steffo · 28-01-2005, 02:12 PM

I can't see how the videocard would affect the CPU temperature.

Paris Hilton · 28-01-2005, 02:27 PM

Maybe the upgraded Video Card uses alot more power then the old one, so the PSU is not supplying enough volts and is making the system overheat?

M14A-Mclaren · 28-01-2005, 02:30 PM

Quote:

Originally Posted by Steffo

I can't see how the videocard would affect the CPU temperature.

If it was stuck in the fan so it couldnt turn.

eb_5litre · 28-01-2005, 02:33 PM

Quote:

Originally Posted by Selekta

Maybe the upgraded Video Card uses alot more power then the old one, so the PSU is not supplying enough volts and is making the system overheat?

I'm using an Antec Truepower 550W, so if thats not providing enough power I dont know what will. hehe

Maybe the 9600XT uses the cpu more.... or is that not the case these days?

Just in case i'm going to put the old card back in and see.... it cant hurt.

M14A-Mclaren · 28-01-2005, 02:37 PM

I got a 9600XT, and I got a 2.8 prescott and mine doesnt overheat at all so I doubt yours would and I got a P4P800 which is real similar to your board, different chipset though

Paris Hilton · 28-01-2005, 02:38 PM

hmmmm if it overheats when the DVD is actually burning, then i'd suspect a faulty PSU, because that is when it uses the most power...even a Antec Truepower 300W should able to handle that machine, they are very good PSUs.

DivHunter · 28-01-2005, 02:42 PM

Quote:

Originally Posted by Selekta

Maybe the upgraded Video Card uses alot more power then the old one, so the PSU is not supplying enough volts and is making the system overheat?

If you lower the voltage it becomes less stable but cooler.

ford.boy · 28-01-2005, 02:48 PM

could you possibly try disabling the video acceleration, thus stopping the video card overheating? (if that has anything to do with it)

I haven't much experience with northwoods, but since it's a P4, underclocking it to say 2.5Ghz really wouldn't impact on performace a great deal. At least it'll be usable.

eb_5litre · 28-01-2005, 02:50 PM

Quote:

Originally Posted by Selekta

hmmmm if it overheats when the DVD is actually burning, then i'd suspect a faulty PSU, because that is when it uses the most power...even a Antec Truepower 300W should able to handle that machine, they are very good PSUs.

It doesnt overheat when burning... only when its reading/encoding/compressing.

Paris Hilton · 28-01-2005, 02:51 PM

Quote:

Originally Posted by Fairmont99

If you lower the voltage it becomes less stable but cooler.

No, it becomes less stable and hotter.

Xtreme F6 · 28-01-2005, 03:01 PM

Quote:

Originally Posted by eb_5litre

It doesnt overheat when burning... only when its reading/encoding/compressing.

Because the reading/encoding/compressing is using the cpu more then the other aplications....

open task manager check the cpu load with different applications. I have a program for testing cpu cooling efficinecy. Its called CPU BURN. if you would like it to run tests ill email it to u... PM me your email if u want it.

check HS and fan if all is working properly then its going to be a case of a faulty CPU.

The newer pentiums are screwed for temps... the amd 64 range are leagues ahead.

Xtreme F6 · 28-01-2005, 03:03 PM

someone mentioned underclocking it. good advice, underclock it a little drop the volts a tad and test it

DivHunter · 28-01-2005, 03:15 PM

Quote:

Originally Posted by GTP-330

someone mentioned underclocking it. good advice, underclock it a little drop the volts a tad and test it

That will lower temps for sure but who wants to go slower :P

Quote:

Originally Posted by Selekta

No, it becomes less stable and hotter.

Have you even ever changed the voltage on a CPU and monitored the temp? do you have any idea what you are talking about?

_

I have a better suggestion though, go AMD

:

Donut King · 28-01-2005, 03:28 PM

try this ;)

Paris Hilton · 28-01-2005, 03:33 PM

Quote:

Originally Posted by Fairmont99

Have you even ever changed the voltage on a CPU and monitored the temp? do you have any idea what you are talking about?

_

We aren't talking about changing the voltage to the CPU, We are talking about changing the voltage to the whole system. When a Motherboard is not getting enough power from a PSU It starts to run other devices at a slower speed, or turn them off all together, so that the vital parts of the computer can run at the speed that the BIOS has requested them to...This is why alot of people with stability problems get them once the computer has been running for a while... they'll run thier computer fine, then they'll try to access a CD Drive, which tries to power up, the system loses voltage, looses stability due to lack of voltage, and the whole system goes screw that and halts. Now you're wondering what this has to do with heat...1) A overloaded PSU will run lot hotter then one which is supplying good voltage, and Fans. Fans are like CPUs, they run slower when you turn the voltage down, and run faster when you turn it up.

However this isn't the problem here, the Antec 550W will run this type of system with ease, unless it is faulty.

M14A-Mclaren · 28-01-2005, 04:24 PM

that thing is awesome DK, how much is it overclocked? assuming it is overclocked hence the need for that thing

Xtreme F6 · 28-01-2005, 04:52 PM

Quote:

Originally Posted by Selekta

We aren't talking about changing the voltage to the CPU, We are talking about changing the voltage to the whole system. When a Motherboard is not getting enough power from a PSU It starts to run other devices at a slower speed, or turn them off all together, so that the vital parts of the computer can run at the speed that the BIOS has requested them to...This is why alot of people with stability problems get them once the computer has been running for a while... they'll run thier computer fine, then they'll try to access a CD Drive, which tries to power up, the system loses voltage, looses stability due to lack of voltage, and the whole system goes screw that and halts. Now you're wondering what this has to do with heat...1) A overloaded PSU will run lot hotter then one which is supplying good voltage, and Fans. Fans are like CPUs, they run slower when you turn the voltage down, and run faster when you turn it up.

However this isn't the problem here, the Antec 550W will run this type of system with ease, unless it is faulty.

actualy the original post was reffering to was in gact saying to drop the cpu volts and you replied saying it would make it hotter and that is wrong. Lowering the volts will always make a cpu cooler if it is stressed.

hence his reply, maybe you should have been a little more descriptive.. i thought the same thing as he did but i didnt say it :P

Xtreme F6 · 28-01-2005, 04:54 PM

[QUOTE=Donut King]try this ;)

image removed
same as above

ahh yes similar to my old system... water cooling is ok but is only as effieciant as what the ambiant lets it be... Hence why i didnt use it for my new system... FX- 53 ...X800 XT PE ect ect