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Abit Uguru...what is PWM?

Tags:
  • Motherboards
  • Software
  • Monitors
  • Processors
Last response: in Motherboards
April 2, 2004 10:26:28 PM

I have an abit AI7 MB which comes with thier new Uguru processor and software. It monitors 3 temps for me, one of which is PWM...wtf is PWM? And y is it getting to 70c under load? Is that too high because its kinda worrying.

P4 2.6@3.38
512Mb PC4000
2x120Gb 7200.7 in RAID0
Waterchill KT12-L30
Abit AI7
Ge-Force4 Ti4200

More about : abit uguru pwm

April 3, 2004 2:40:03 AM

Just guessing, but the third sensor is usually in the psu. You may have to configure it for your power supply.
April 3, 2004 9:57:15 AM

I hope that aint the case, 70c is damn hot for a power supply. Maybe its a particular component in the power supply, I just wanna know if its suppossed to get that hot.

P4 2.6@3.38
512Mb PC4000
2x120Gb 7200.7 in RAID0
Waterchill KT12-L30
Abit AI7
Ge-Force4 Ti4200
Related resources
April 3, 2004 4:09:41 PM

AI7 was the baddestest board I've ever had

..this is very useful and helpful place for information...
April 3, 2004 6:49:36 PM

How come? Its practically the IS7.

P4 2.6@3.38
512Mb PC4000
2x120Gb 7200.7 in RAID0
Waterchill KT12-L30
Abit AI7
Ge-Force4 Ti4200
April 4, 2004 4:15:48 AM

have you used sound on it?

..this is very useful and helpful place for information...
a b V Motherboard
April 4, 2004 5:11:11 AM

hehe, sound was one of the reasons I told people to stick with the IS7 instead of the AI7.

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April 4, 2004 8:34:42 AM

The 70c temps are probably wrong, as your uguru doesn't know what sensor your psu is using. It must be configurable somewhere. Have you even connected a sensor lead from the psu?
April 4, 2004 12:49:56 PM

Nope, but the temp changes so its got to be getting the reading from somewhere. I dont use on board sound so Im not bothered.

P4 2.6@3.38
512Mb PC4000
2x120Gb 7200.7 in RAID0
Waterchill KT12-L30
Abit AI7
Ge-Force4 Ti4200
April 4, 2004 10:17:47 PM

I would make the guess that no one here actually tried looking on Abit's site, as putting pwm into search on main page brought up faq with info on first search result.:

Solution



"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.
April 4, 2004 11:14:13 PM

lol, why didnt I think of checking out thier web site? I always have to do things the hard way, ah wellm cheers man! Nice to know that 70c isnt 2 high for it.

P4 2.6@3.38
512Mb PC4000
2x120Gb 7200.7 in RAID0
Waterchill KT12-L30
Abit AI7
Ge-Force4 Ti4200
February 27, 2010 5:47:01 AM

Thanks etp775! It seems that whenever I google search for any abit problems, NOTHING links to the abit website, yet when you go to the abit website they have a TON of good resources and answers for everything. It's a shame that none of it gets indexed by google!

Anyhow, ya I have an Abit IP-35 Pro motherboard and just installed an Arctic Cooling Freezer 7 CPU heatsink, and it blew my power supply (or it was coincidence).

So I got a new 610w psup and installed it and my computer boots now, but uguru alerts started going off because my pwm temperature was in the 80C+ range which was a big concern since before the new hardware it was always around 48C.

So now I know what it's all about! I'll try installing some extra fans on the box or something to improve airflow and see if that makes a difference. at least now I'm not panicked about 80C frying my system or something :) 

Thanks!!