Worried. PWMIC @ 71ºC!!

Firegod

Firegod

Firegod

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Hi all,

I'm just busy overclocking my new CPU (s939 x2 3800+). At the moment, it's going quite well. I've hit 2.6Ghz with no voltage increase at all. However, when running Orthos testing the stability, with MBM5 monitoring temps and voltages, I saw the PWMIC go over 70ºC!! The alarm started sounding obviously from MBM5.

Is this a problem at this temp?

I don't ever remember having this problem with my old CPU/Overclock and that was running at 2.8Ghz with massive voltage increases across the board. :confused:

Why is it running so hot under load now??? Does dual-core put more "strain" on the system? Chipset temps are ok as well as the CPU temps. I'm a bit worried about this. :o

I have also checked in the BIOS incase one of the voltage options were set to AUTO and therefore increasing automatically, but none are.

Thanks for any help!
 
Ok looks like it's because of the dual-core CPU. Basically big FSB increases on a dual-core CPU causes the temp to rocket up. Especially because I have watercooling there is no air from a CPU fan blowing near the MOSFETS.

Oh well, looks like I'll need an extra fan in the case.....

:(
 
It is indeed due to the dual core CPU. My PWM temps spiked from ~45 to nearly 65*c when going from Athlon 64 3700+ @ 2.8Ghz to Opteron 165 @ 2.8GHz. I'm using a DFI LanParty nF4 Ultra-D by the way. Infact I'm running Orthos right now and PWMIC is at 60*c.

However, I must say there's nothing to worry about. They're rated at temperatures in excess of 80*c as far as I'm aware, depending on the board you own.

Though, it maybe an idea to improve airflow in your case. Right now, my case has terrible airflow and as a result, CPU temperatures are also high. While my CPU Socket temps are reasonable (50*c), the Coretemps show 66*c for Core0 and 60*c for Core1 as I type.

Mul
 
Cheers for the replies guys.

My mobo is the same as yours Mul. DFI Lanparty nF4 SLi-D.

If they can take the heat then that's ok, I've just never gone over 70ºC before. I may try and pop out tomorrow (if anywhere is open that is) and purchase a silent 92mm fan and get that in the case. Tbh, the case isn't short on fans. It has a total of x7 80mm case fans and then the PSU fan.

I was just reading though as well that usually over 75ºC and some boards develop stability issues. Not what you want when striving for a high overclock.
 
Ive got the ultra-d so it must be a DFI thing!

Put the ram voltage jumpers on the +3v setting, then you'll see what high temps are
 
Defcon5 said:
Ive got the ultra-d so it must be a DFI thing!

Put the ram voltage jumpers on the +3v setting, then you'll see what high temps are
Click to expand...

Lol nooooo I don't want to fry it. My ram is quite happy at 2.6v. Love G.Skill. Hit DDR500 speed with no voltage bump. Quality stuff.

Well sorry, quality mobo, as well. That's the main factor here! :D
 
Defcon5 said:
Ive got the ultra-d so it must be a DFI thing!

Put the ram voltage jumpers on the +3v setting, then you'll see what high temps are
Click to expand...

I'm intrigued. Is that meant to take load of the PWM? if so, how? :)

This is a question coming from a TCCD user so even if the jumper was set, I wouldn't use voltages higher than 2.8V anyway.

Cheers,

Mul
 
had same prob on my ultra-d, soon as pwm hit 65c and above my overclock became unstable. Just stick at 80mm fan over the area and problems will be solved, mine never went above 45c with a fan and oc was nice n stable :)
 
Mul said:
I'm intrigued. Is that meant to take load of the PWM? if so, how? :)

This is a question coming from a TCCD user so even if the jumper was set, I wouldn't use voltages higher than 2.8V anyway.
Click to expand...

Normally the power for your ram comes from Rail A (cant remember what voltage), the jumpers swith it to take from rail B which is of higher voltage, so your power regulating gear gets a lot hotter.

You only need to use it when using voltages over 3.3v it has no other benefits
 
Concorde Rules said:
My PWM on my SLi-DR were always sub 60, but then I was using a crossflow fan over the mobo, with a 1.6V X2 :p

*hugs CM stacker*
Click to expand...

i would love a stacker 810 for my set up but u can't find them anyware now :(
 
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