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View Full Version : Do mosfets need heatsinks?

Vice
08-15-2007, 08:07 AM
Question is as the title states.

I just got my Gigabyte DS3P motherboard, and it does not come with mosfet heatsinks, which makes me think they are not needed.

I do plan on ordering some in the near future, but are they necessary as in , I can't turn my computer on without them?

I will probably place a fan pointing at them for now. Will this suffice?
Morais
08-15-2007, 08:15 AM
Well, if your computer stays a long time in full load, I recommend a heatsink there.
Spawne32
08-15-2007, 08:24 AM
Generally i like to see heatsinks on mosfets...they get insanely hot.
Anavel0
08-15-2007, 09:36 AM
The hotter they get the shorter the life they will have, true with any part in your computer. So putting a heatsink on them will help, and potential make for a better looking board.
Vice
08-15-2007, 10:11 AM
The hotter they get the shorter the life they will have, true with any part in your computer. So putting a heatsink on them will help, and potential make for a better looking board.


I completely agree.

I just do not have any spare heatsinks on me, and the ones I do have, the tape is shot so they don't stick.

Which would you recommend for the Gigabyte P35 DS3P?
kinghong1970
08-15-2007, 10:13 AM
The hotter they get the shorter the life they will have, true with any part in your computer. So putting a heatsink on them will help, and potential make for a better looking board.

that kinda makes me wanna go git micro sinks and go crazy all over my MB's :D
henrycraig
08-15-2007, 03:54 PM
Which would you recommend for the Gigabyte P35 DS3P?

Was thinking of ordering these myself (but for a P965-DS3)...
http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=197&products_id=4291

or even these which are 3mm wider (may be too big, trying to measure with a TR UltraExtreme fitted is not easy :D )...
http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=197&products_id=4286

Could someone please confirm these are the 12 mosfet's on a DS3 :confused: ...
http://i205.photobucket.com/albums/bb132/henrycraig_photos/mosfet.jpg
Does the color matter if they are made of same material? Silver or Black?
Spawne32
08-15-2007, 04:09 PM
the little flat black ones are the mosfets
lowfat
08-16-2007, 11:27 AM
The motherboard will be outdated before the board would die from overheating.
SaII
08-16-2007, 12:53 PM
The motherboard will be outdated before the board would die from overheating.

+1

mobos doesn't need extreme cooling at all, ppl just do it for e-peens
Spawne32
08-16-2007, 01:09 PM
+1

mobos doesn't need extreme cooling at all, ppl just do it for e-peens

jealous of the e-peen?:D
SaII
08-16-2007, 02:56 PM
jealous of the e-peen?:D

hahah sure why not
ineedaname
08-16-2007, 07:34 PM
I would suggest a fan over the heatsinks too if possible cuz they get REALLY hot.

A fan over my mosfets reduces the temps from 40 to 30.. sounds crazy but it does.
Anavel0
08-17-2007, 04:46 AM
The motherboard will be outdated before the board would die from overheating.

Never said you had to cool them. I'm just crazy about cooling everything I can.
STEvil
08-18-2007, 12:25 AM
Test their temperatures with a laser probe.

If they are hotter than 90c at full load (give them time to warm up, ~30 mins) then heatsinks would be good. If they are not, then you're fine for as long as you own the board pretty much.
Eddie3dfx
12-21-2007, 02:39 PM
I have a p35c and I'm wondering the same thing. I think I might put some small heatsinks on them and a 60mm fan.
STEvil
12-21-2007, 09:47 PM
Check the driver IC's as well.