Pwm Problem (cooling) Abit Mobo
<div class="IPBDescription">Thing hits 80 degrees celsius</div> Just like topic...
Full system specs...
ABIT A17 mobo
2gb (2x 1024mb) Corsair XMS series ram
3.2ghz P4
6800 ultra stock
520 watt powersupply
TOTAL OF 7 fans
1 on vid card
2 in case (top and side)
2 in powersupply
1 on mobo (northbridge)
1 on processor
I know what the PWM is... and i know its near the processor..... but i cant find it to cool it... or know WHY its getting so hott...
This doesent happen normally... normally... gaming... ect its fine.... it used to be fine all the time, until recently when i run 2 instances of Prime95 at the same time it skyrockets to 80 degrees celsius (where my comp auto shuts it down)
NOTE: MY comp is inherently hot
Processor idles at 60-65 degrees.... 68 on peak load
VID CARD 55 idle, 63-70 on peak load
Northbridge, 45-55 idle 55-58 load....
All fans set for max speed ALL THE TIME
Lowers a bit if i take my side of my case off, and remove all 5x7 covers on the front port..... but the GOD DAMN PWM still hits 80 and shuts down
I know prime95 puts my comp under a lot of stress... but it just started doin this recently... i dusted it out... no go
What i need to know:
1. WHERE EXACTLY is the PWM (near processor dont count) and what does it look like
2. How do i freaking cool it... or should i just lower voltages in bios? would that do it (i know it controls voltages.... so..... )
TYIA
~Jason
Full system specs...
ABIT A17 mobo
2gb (2x 1024mb) Corsair XMS series ram
3.2ghz P4
6800 ultra stock
520 watt powersupply
TOTAL OF 7 fans
1 on vid card
2 in case (top and side)
2 in powersupply
1 on mobo (northbridge)
1 on processor
I know what the PWM is... and i know its near the processor..... but i cant find it to cool it... or know WHY its getting so hott...
This doesent happen normally... normally... gaming... ect its fine.... it used to be fine all the time, until recently when i run 2 instances of Prime95 at the same time it skyrockets to 80 degrees celsius (where my comp auto shuts it down)
NOTE: MY comp is inherently hot
Processor idles at 60-65 degrees.... 68 on peak load
VID CARD 55 idle, 63-70 on peak load
Northbridge, 45-55 idle 55-58 load....
All fans set for max speed ALL THE TIME
Lowers a bit if i take my side of my case off, and remove all 5x7 covers on the front port..... but the GOD DAMN PWM still hits 80 and shuts down
I know prime95 puts my comp under a lot of stress... but it just started doin this recently... i dusted it out... no go
What i need to know:
1. WHERE EXACTLY is the PWM (near processor dont count) and what does it look like
2. How do i freaking cool it... or should i just lower voltages in bios? would that do it (i know it controls voltages.... so..... )
TYIA
~Jason
Comments
Heh, sorry <!--emo&:p--><img src='http://www.unknownworlds.com/forums/html//emoticons/tounge.gif' border='0' style='vertical-align:middle' alt='tounge.gif' /><!--endemo-->
I'm just mocking the common segement of the community that seems to belive that the answer to every problem is formating your harddrive. I could recommend what I have done on my rig to keep the temperatures down, but you probably wouldn't be to inthused. Basicly it ivolves a 20" room fan and an open computer case...
I don't know, in all seriousness, maby it's time to consider water cooling your system, as it is running quite a bit hotter than it probably should be...
Heh, sorry <!--emo&:p--><img src='http://www.unknownworlds.com/forums/html//emoticons/tounge.gif' border='0' style='vertical-align:middle' alt='tounge.gif' /><!--endemo-->
I'm just mocking the common segement of the community that seems to belive that the answer to every problem is formating your harddrive. I could recommend what I have done on my rig to keep the temperatures down, but you probably wouldn't be to inthused. Basicly it ivolves a 120" room fan and an open computer case...
I don't know, in all seriousness, maby it's time to consider water cooling your system, as it is running quite a bit hotter than it probably should be... <!--QuoteEnd--> </td></tr></table><div class='postcolor'> <!--QuoteEEnd-->
Where can I get a 10 foot fan? I could like...chop people in half with that thing.
Seems like there's an awful lot of stuff plugged into that computer. However, do you have it in a warm-ish place? Enclosed in a cabinet or next to your monitor on an enclosed desktop/hutch? I'd recommend putting your computer by a window if possible, might help a bit with the temperature.
On that note, I had no idea what the hell a PWM was, so on further analysis:
<!--QuoteBegin-http://www.scan.co.uk/Products/ProductInfo.asp?WebProductID=61863+--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td><b>QUOTE</b> (http://www.scan.co.uk/Products/ProductInfo.asp?WebProductID=61863)</td></tr><tr><td id='QUOTE'><!--QuoteEBegin-->"PWM" is a circuit on mainboards to convert the voltage level from power supply unit to provide specific voltage to components (ex. Provide CPU with core voltage). We know that CPU could be the hottest component inside a PC system, and we always care about the heat dissipation of it. Actually, the PWM circuit is quite hot too; especially when CPU is at full loading, large current passes through the PWM circuit and was converted to necessary CPU core voltage. Some ABIT boards show "PWM temperature" on BIOS setup page and Windows hardware monitoring tool. This provides users possible hottest temperature inside the PC chassis, and check whether the air conditioning inside the chassis needs to be enhanced or not. When CPU works heavily, the CPU temperature could be around 60 degree C; nevertheless, the PWM temperature may achieve 70 degree C or even higher; depends on the design of thermal convection. The safety limit of the PWM temperature is about 120 degree C, however, we strongly recommend improving the air flow and heat dissipation inside the PC chassis once it rises to 100 degree C. <!--QuoteEnd--></td></tr></table><div class='postcolor'><!--QuoteEEnd-->
And it seems it's just a component on the motherboard near the processor that changes the voltages going to different components.
...if that helps...or is wrong or something.
theyre a series of black chips with capacitors surrounding them. they look like this:
<a href='http://www.pclabs.gen.tr/reviews/mainboards/epox/8k3a/mosfet.jpg' target='_blank'>http://www.pclabs.gen.tr/reviews/mainboard...8k3a/mosfet.jpg</a>
they do get enourmously hot, but that is quite normal. if there is a heating issue, then the issue is with the entire case or you have a faulty board (which we will assume is NOT the case).
make sure you have appropriate airflow throughout the case. simply having seven fans doesnt count. if theyre all pointing inward for instance, no air will flow. the one on the top should go out, the psu should go out, and the one on the side should go in. you might need one in the front goin in as well if removing the bay covers makes such a difference then you surely have a pressure difference caused by improper in/out ratio.
you can touch the mosfets while the computer is on and you'll likely get scalded. putting tiny heatsinks on each really is not an option unless youre into metalworking <!--emo&:)--><img src='http://www.unknownworlds.com/forums/html//emoticons/smile-fix.gif' border='0' style='vertical-align:middle' alt='smile-fix.gif' /><!--endemo-->
lowering the voltage that the processor is drawing may cool them down, but it could also adversely effect stability. no high performing processor likes to be undervolted at stock speeds.
theyre a series of black chips with capacitors surrounding them. they look like this:
<a href='http://www.pclabs.gen.tr/reviews/mainboards/epox/8k3a/mosfet.jpg' target='_blank'>http://www.pclabs.gen.tr/reviews/mainboard...8k3a/mosfet.jpg</a>
they do get enourmously hot, but that is quite normal. if there is a heating issue, then the issue is with the entire case or you have a faulty board (which we will assume is NOT the case).
make sure you have appropriate airflow throughout the case. simply having seven fans doesnt count. if theyre all pointing inward for instance, no air will flow. the one on the top should go out, the psu should go out, and the one on the side should go in. you might need one in the front goin in as well if removing the bay covers makes such a difference then you surely have a pressure difference caused by improper in/out ratio.
you can touch the mosfets while the computer is on and you'll likely get scalded. putting tiny heatsinks on each really is not an option unless youre into metalworking <!--emo&:)--><img src='http://www.unknownworlds.com/forums/html//emoticons/smile-fix.gif' border='0' style='vertical-align:middle' alt='smile-fix.gif' /><!--endemo-->
lowering the voltage that the processor is drawing may cool them down, but it could also adversely effect stability. no high performing processor likes to be undervolted at stock speeds. <!--QuoteEnd--></td></tr></table><div class='postcolor'><!--QuoteEEnd-->
could you not thermal glue ram heatsinks onto it?
[edit] oh, and lowering the voltage shouldn't give you any serious problems if you lower the multipliers with it...
LOL that's your answer to everything.
Scenarios:
Senator: What can we do to stop the war on terror.
Someone: Format C:
Waiter: What would you like for dinner?
Someone: Format C:
Patient: So doc, what's wrong with me?
Doctor: Format C:
ROFLMAO
I have an abit mobo also, and I was having the same problems. I haven't done this yet, just because I am too lazy to do it and don't care enough to do it yet. But this should help.
I had a temperature problem with my Abit NF7-S. In the end, I was using an old BIOS that was apparently reporting incorrect temperatures. I updated the BIOS to the latest version, and the problem went away. It seems that the old BIOS was not reading interpreting the CPU temperature readings. I posted here about a month ago about it and Even~Flow kindly pointed this out to me.
You may find some joy in updated the BIOS for your board.
In any case, Abit host some excellent <a href='http://forum.abit-usa.com' target='_blank'>forums</a>.
Otherwise, you may be looking at a faulty motherboard.
I did some investigating last night.... and ABits website says it wont get unstable until 120 degrees celsius...
I figure ill keep it under 100 as suggested above
Right now its at 85 average on pc load.... so im fine i guess
That just seems too freaking hott for me.....
~Jason
P.S. case side is off... sitting in the open on the floor
<a href='http://forums.pcper.com/forumdisplay.php?f=7' target='_blank'>http://forums.pcper.com/forumdisplay.php?f=7</a>
Are you serious man?