PCA Forums

I am in the process of setting up a fanless motherboard. I am using a motherboard with a VIA C3 processor. It comes standard with a heatsink/fan combo that looks very similar to those found on northbridges of most regular motherboards. I have been trying to find a heatsink to replace the default HSF. The chip puts out 8.5W at full load, the best heatsink that I've found so far was the new Zalman ZM-NB32J but that will only disipate 4W at full load. There is a space issue around the CPU so the base needs to be the exact same size as the previously mentioned heatsink, (or any standard northbridge heatsink). If anyone knows a heatsink that would fit the bill let me know. I'll give ya credit when I send in my mod procedure for the machine I'm making. Thanks guys.

how is it attached to the chip/board? any pics? that might help.

Here are a few different ones though:

http://2cooltek.safeshopper.com/51/cat51.htm?285
http://store.yahoo.com/sidewindercomput ... rtig1.html
http://www.so-trickcomputers.com/Mercha ... y_Code=HSE
http://www.kdcomputers.com/eui/prime/pr ... ponent.htm

Greg

You could try slapping a Volcano w/o fan on it. They're hella big sinks, so I think they'd be more than enough.

Here are a couple of pics of the motherboard and default HSF unit,

Top & side view
Default HSF

As far as I know there are adjustable push-pins to hold it in place. I was thinking along the same lines as Sahakiel with trying to just use a big heatsink minus the fan but I'm not sure what kind of heatsink i can fit in that space and not hit the caps that are in the area. Let me know what you guys think.

I would sugest somethign like this then: http://www.kdcomputers.com/eui/prime/pr ... ponent.htm cause it has thewings on the side it should miss any and everything thay way, or one of these others:

http://www.highspeedpc.com/Merchant2/me ... ry_Code=SA
http://www.svcompucycle.com/newsvcgc3280.html
http://www.svcompucycle.com/globwinfopw3.html

And remember. If U order anywhere, put PCAbusers.com in the comment section if they have one.

Greg

After looking around online I think I got the heatsink attachment wrong in the previous post. The heatsink attaches the same as the heatsink below (Zalman ZM-NB32J previously mentioned NOT to work)

Attachment type

I checked the heatsinks that you suggested and it looks like they wouldn't attach the same way, although on many you can't really get the angle to tell. Any other suggestions for what heatsink to use?

You guys have been great so far, and you'll all get credit for this :-) no worries.

use fragtape or an adheasive like arctic silver....I dont know of any small heatsinks that do what you want.

Greg