is this a MB problem?

sylvester243 · 08-24-2008, 10:52 PM

I have been having heating problems on one of the comps in the home, the cpu and southbridge are getting temps of 75 celcius under full load, i checked the fan speed for the cpu and it was showing at 2740 rpm at idle as well as under full load, i replace the heatsink and fan with a new one, and the new fan was showing speeds of 3400 rpm at idle, put the comp under full load again and the temps also went through the roof...fan speed never increased from 3400 rpm

would there be a problem with the MB not to increase fan speed as the work load increases?

cpu is prescott 3.0

dimrin · 08-24-2008, 11:14 PM

Try to do BIOS update...
update the driver for chipset and display....
you need to do cleaning of the MB sometime it helps...
try to add a fan in the tower to through the hot air out of the system...
as prescot processor releases more heat then other processor...
check...

sylvester243 · 08-25-2008, 12:08 AM

all latest drivers are being used, including bios, there are two fans already running in the case as well

**Pauldo** · 08-25-2008, 12:16 AM

Not sure what the heat issue could be but my cpu fan speed is running at 1400 rpm's as I type this. I have yet to see it get above 3000 rpm even under load and my room is pretty hot right now. I'm pretty sure your fan is running at top speed.

What paste did you use to seat the heatsink onto the cpu?

Pauldo

Tumbleweed36 · 08-25-2008, 05:13 AM

Where are the two case fans located and which direction are they blowing. YOu might have to redo that thermal paste. If you do that, clean off the old (always must do that) and follow these directions:

Applying Artic Silver Thermal Paste

sylvester243 · 08-26-2008, 12:01 AM

the thermal paste used was artic silver 5, the case fans has one pulling air in and the other pushing it out the back,

i have put in a cpu before, the comp i'm using for putting the messages here i built myself, and is running wonderfully

I can understand the cpu heating if the cpu fan is not working properly but what will cause the southbridge to be getting the same temps, the comp was brought new and until 2 months ago never got temps above 55 C on the southbridge, now under full load the cpu and southbridge are both at 75 C or above, is it possible the controller for fan speed detection have died so the MB doesnt know to increase fan speed

**Pauldo** · 08-26-2008, 09:12 PM

It really sounds as if you aren't getting enough cool air inside the case.

What kind of case do you have this in? If you didn't build this one what's the model of the computer?

Not sure what you are talking about with fan speed. Can you see the speed of your case fans? 3400 rpm is pretty high these days on a cpu fan (cheapest fan on Newegg runs as high as 4000rpm) so it is probably running at it's fastest speed possible.

What heatsink and fan did you purchase?

Pauldo

08-24-2008, 10:52 PM	#1 (permalink)
sylvester243 Registered User Join Date: Feb 2008 Posts: 34 OS: xp	is this a MB problem? I have been having heating problems on one of the comps in the home, the cpu and southbridge are getting temps of 75 celcius under full load, i checked the fan speed for the cpu and it was showing at 2740 rpm at idle as well as under full load, i replace the heatsink and fan with a new one, and the new fan was showing speeds of 3400 rpm at idle, put the comp under full load again and the temps also went through the roof...fan speed never increased from 3400 rpm would there be a problem with the MB not to increase fan speed as the work load increases? cpu is prescott 3.0

08-24-2008, 11:14 PM	#2 (permalink)
dimrin Registered User Join Date: Aug 2008 Posts: 1 OS: xp sp2	Re: is this a MB problem? Try to do BIOS update... update the driver for chipset and display.... you need to do cleaning of the MB sometime it helps... try to add a fan in the tower to through the hot air out of the system... as prescot processor releases more heat then other processor... check... Last edited by dimrin; 08-24-2008 at 11:16 PM.

08-25-2008, 12:08 AM	#3 (permalink)
sylvester243 Registered User Join Date: Feb 2008 Posts: 34 OS: xp	Re: is this a MB problem? all latest drivers are being used, including bios, there are two fans already running in the case as well

08-25-2008, 12:16 AM	#4 (permalink)
Pauldo Enthusiast Join Date: Jun 2008 Location: Seattle, Washington Posts: 1,444 OS: winXP Pro sp3 My System	Re: is this a MB problem? Not sure what the heat issue could be but my cpu fan speed is running at 1400 rpm's as I type this. I have yet to see it get above 3000 rpm even under load and my room is pretty hot right now. I'm pretty sure your fan is running at top speed. What paste did you use to seat the heatsink onto the cpu? Pauldo

08-25-2008, 05:13 AM	#5 (permalink)
Tumbleweed36 Asst Manager Hardware Join Date: May 2005 Location: USA Posts: 19,486 OS: XP Professional	Re: is this a MB problem? Where are the two case fans located and which direction are they blowing. YOu might have to redo that thermal paste. If you do that, clean off the old (always must do that) and follow these directions: Applying Artic Silver Thermal Paste __________________ ---------- I don't receive email notifications of replies to subscribed threads. (Internet provider policy) Therefore, if I don't respond to your post within 24 hours, please send me a reminder PM and include the link to your thread.

08-26-2008, 12:01 AM	#6 (permalink)
sylvester243 Registered User Join Date: Feb 2008 Posts: 34 OS: xp	Re: is this a MB problem? the thermal paste used was artic silver 5, the case fans has one pulling air in and the other pushing it out the back, i have put in a cpu before, the comp i'm using for putting the messages here i built myself, and is running wonderfully I can understand the cpu heating if the cpu fan is not working properly but what will cause the southbridge to be getting the same temps, the comp was brought new and until 2 months ago never got temps above 55 C on the southbridge, now under full load the cpu and southbridge are both at 75 C or above, is it possible the controller for fan speed detection have died so the MB doesnt know to increase fan speed

08-26-2008, 09:12 PM	#7 (permalink)
Pauldo Enthusiast Join Date: Jun 2008 Location: Seattle, Washington Posts: 1,444 OS: winXP Pro sp3 My System	Re: is this a MB problem? It really sounds as if you aren't getting enough cool air inside the case. What kind of case do you have this in? If you didn't build this one what's the model of the computer? Not sure what you are talking about with fan speed. Can you see the speed of your case fans? 3400 rpm is pretty high these days on a cpu fan (cheapest fan on Newegg runs as high as 4000rpm) so it is probably running at it's fastest speed possible. What heatsink and fan did you purchase? Pauldo