Sinking PWMIC on DFI LP NF4

[ImportantAwareness89]

Hmm. Is this a good idea? I have a few extra ramsinks from my Vantec VGA cooler.

Attach some thermal stickies and its good to go?

[dqniel]

Seems like it's possible and wouldn't hurt anything:

http://gibjee.tripod.com/id1.html

don't know if that's a DFI, but that guy definitely did what you want to do.

[jinu117]

Would prefer going aluminum sink on those myself. Vantec VGA cooler is heavy (copper) and when the sink drops due to lack of adhesion from thermal tape with it's weight... Logical places for it to fall down doesn't look to good to me. (hit the power cord and if bounced correctly, maybe on top of 7800gtx. If not into heavy mosfet area... neither of it I would like.

[dqniel]

(hit the power cord and if bounced correctly, maybe on top of 7800gtx.

Haha, what a way for a $500 card to go . I'd go aluminum too unless you're going to use epoxy.

[IvanAndreevich]

Probably will do nothing for stability unless you are running a highly overclocked X2 or a 0.13 chip @ high vcore.

[njkid32]

Here is a post of what I did as a temp solution and it worked very well.

http://www.xtremesystems.org/forums/...&postcount=211

[Viss]

Afaik the yellow sensor in the pic is the probe to measure pwmic temp. If thats the case just a sink on the chip wont help at all without an additional fan on the area right from socket.

[njkid32]

Afaik the yellow sensor in the pic is the probe to measure pwmic temp. If thats the case just a sink on the chip wont help at all without an additional fan on the area right from socket.

Um do you remember this thread? The PWMIC is an ic not the HS's that you are saying.

http://www.xtremesystems.org/forums/...ighlight=PWMIC

[Eldonko]

I use copper GPU sincs, works fine. You can see em by the 4vdimm jumper. PWMIC temps 32-35C when they used to be 70+ without active cooling inside a case.

[dnottis]

Here is mine...

[ImportantAwareness89]

Yea I just sinked mine... horrible job. I tried to slap on a VGA ram heatsink with thermal tape on it. Missed entirely the first time. Pulled it off and slapped again. Not straight, ugly, but its on the chip definitely.

PWMIC is around 34ish idle up to 37 (Case opened). Not much of a change. I used to max out at 39/40 and 41 with case closed.

[largon]

That chip (ISL6559CB) you folks have been sinking is the PWMIC controller.
No use sinking that one.

This is the PWMIC Smartguardian is talking about.


Actually, if you look at the chip's datasheet you'll notice ISL6559CB doesn't even have an internal temp sensor.

According to Smartguardian my board's PWMIC temp is 54ºC.
I have 1 fan inside my case on the GF6600GT w/ ZM80HP-D, 2 in the psu not counted.

54ºC is hot - if you ask human skin. My "ISL6559CB" is not hot at all to touch.
It is clear that Smartguardian's PWMIC-temp actually comes from the little yellow sensor near the upper right corner of CPU socket.

[njkid32]

That chip (ISL6559CB) you folks have been sinking is the PWMIC controller.
No use sinking that one.

This is the PWMIC Smartguardian is talking about.


Actually, if you look at the chip's datasheet you'll notice ISL6559CB doesn't even have an internal temp sensor.

According to Smartguardian my board's PWMIC temp is 54ºC.
I have 1 fan inside my case on the GF6600GT w/ ZM80HP-D, 2 in the psu not counted.

54ºC is hot - if you ask human skin. My "ISL6559CB" is not hot at all to touch.
It is clear that Smartguardian's PWMIC-temp actually comes from the little yellow sensor near the upper right corner of CPU socket.

Well from reading your PDF I see what you are saying but, the actual ic get hot too and when I put the little HS on it without a fan it made a diff. Then I put a fan on it worked even better. I am now going to add a fan to the Mosfets and see if that works even more.

[kriz]

Hi
I think this pictures might help you guys.

http://www.bigbruin.com/contentintro.php?file=5802

I wonder nobody posted this before

cya!

[njkid32]

Hi
I think this pictures might help you guys.

http://www.bigbruin.com/contentintro.php?file=5802

I wonder nobody posted this before

cya!

great post! I'm gonna make some changes....

[ImportantAwareness89]

LoL, damn I sinked the PWM IC controller like dnottis did then... =(

What should I sink then?

And how come my PWMIC temps dropped after sinking the controller?

[njkid32]

LoL, damn I sinked the PWM IC controller like dnottis did then... =(

What should I sink then?

And how come my PWMIC temps dropped after sinking the controller?

I had the same result as you so I will leave the fan and HS where it is but I am going to add another fan to the area with the 2 HS's and see if it wont cool a little more. Hey it cant hurt to try right?