heatsinks ans Fans..

Post by **bicostp** » Mon Apr 25, 2005 7:56 pm

Just use something like hot glue to glue them to the board around the chip. If you use glue on the chip, it will act as an insulator and keep the heat form flowing to the aluminum heatsink. (I've taken apart a LOT of scrap routers, and they either have the heatsinks glued down to clipped down to the circuit board.) Unless you can find that glue that conducts heat...

KJoshJ · Post by **KJoshJ** » Mon Apr 25, 2005 8:25 pm

I added my own cut apart heatsinks, I just put a regular size dab of silicone paste in the middle and 2 small dabs of glue or cement in two opposite corners, mine dont move when they dried, but its not a portable, just a show off. Josh.

*o* · Post by ***o*** » Mon Apr 25, 2005 8:30 pm

so would that work on an n64?

KJoshJ · Post by **KJoshJ** » Mon Apr 25, 2005 9:41 pm

i dont know, have not tried to move it around a lot ot to put it upside down, it works great for me and wont move if you try to make them gently, there on there good if you get it done right, but a little force and i heatr it comes off easy, easier when stikll not dried all the way, dont want a broken chip. =). mine dont even move when they are warm from use. Josh.

monster · Post by **monster** » Mon Apr 25, 2005 10:12 pm

bicostp wrote:Unless you can find that glue that conducts heat...

"Thermal Epoxy"

i wouldn't use hot glue around the edge, that is asking for heat...

heatsinks are usually pretty smooth on the bottom, and chips are usually OK, but they look like this close up

-_-//////-_----______--_-_----_--_--
/---_--__----____-\/\/______------\

thermal grease is used to help conduction in the spots where they are "far" apart, thermal epoxy does this and also bonds, so you don't need a mechanical means to hold it down (like the leaf springs my passively cooled P2 celery had).

use something like arctic silver thermal epoxy, or at least something silver based, not sillicone. sillicone was made to hold heat, thats why they use them in fake titties, not silver (also silver would make them sag

...)

*o* · Post by ***o*** » Mon Apr 25, 2005 10:23 pm

i have grease and glue availible thats it

KJoshJ · Post by **KJoshJ** » Mon Apr 25, 2005 10:27 pm

there were very many test done by private labs and the silver or copper based only led silicone paste by less than 10%, in overclocking computers where you can specify exactly how much you want to overclock, that is a good purpose, but on a N64, you cant overclock only 15 Mhz more, so silicone will do just as good on this application as silver, also silicone paste doesnt conduct electricity. the exotic ones do, i make some mistakes with mine and this way i dont fry anything. It works great evergy where i use it, its cheap and redily availabel. Josh.

monster · Post by **monster** » Mon Apr 25, 2005 10:28 pm

you don't need that much per IC because it is most effecient to have the 'sink as close as possible to the IC, so maybe a few drops worth will do ya'. a single tube would last a long time.

it's a female dog to get the sinks off though, so be sure you want it there. i've actually seen people tear the top of the IC off trying to get the sink off. it wasn't pretty, since this is a family forum i cannot post the pics in good conscience.

.:EDIT:. josh slipped in ahead of me, i guess it makes sense that a N64 chip puts out less heat than a P4 overclocked to >3GHz. i just put tape on the leads, so any extra just gets the tape sticky and after it gets properly seated i remove the tape, works every time (unless you have the hand-eye coordination of a drunken monkey on a roller coaster)

masterpaul · Post by **masterpaul** » Tue Apr 26, 2005 4:38 am

you could use a cooling fan instead of a heatstink. It worked for me.

*o* · Post by ***o*** » Tue Apr 26, 2005 4:42 am

i have used the bit of glue in corner thingy works great with my fan keeps it at a cool 26degreeC

daguuy · Post by **daguuy** » Thu Apr 28, 2005 3:00 pm

vskid wrote:Why couldn't you just keep the original heatsinks?

the original one's so huge it probably wouldn't fit a a portable

vskid · Post by **vskid** » Thu Apr 28, 2005 3:25 pm

Not if you get rid of the metal shielding.

KJoshJ · Post by **KJoshJ** » Thu Apr 28, 2005 3:37 pm

umm the metal shielding is the thin metal around the whole unit, the original heatsink is the thick metal on top part, almost as big as the board. Josh.

vskid · Post by **vskid** » Thu Apr 28, 2005 4:44 pm

I meant the heatsinks glued to the board.

daguuy · Post by **daguuy** » Thu Apr 28, 2005 7:08 pm

i havn't opened my n64 yet, but i've seen pics of little metal things on the boards. if those are what your talking about, they probably won't remove enough heat without a fan