Heatsink removal

[Chainsaw]

How would I go about removing a heatsink from a video card (other than very carefully)
I have a heatsink from an old 586 that has a much greater surface area than the one on my V770 non-ultra card. I'd like to swap them out.
Is there a solvent that will help get the factory goop off?
Any help appreciated.
Thanks,
........CHNsaw

[Toadman]

Which video card you got, Chainsaw? Rather than mess with my V770 sink, I just mounted a 486 CPU fan by carefully bending two prongs together on each corner of the sink until they were about 2mm from touching each other, then used 4 self-tapping screws to mount the fan. Looks professional and pulls heat off into the airstream rather nicely. Good luck!

[Chainsaw]

I've currently got the same set-up, Diamond Viper V770 Non-Ultra 32MB w/486 Fan. It works good, I just have this bigger taller heatsink that would pull more heat off, so I can run with a higher FSB (therefore a higher AGP buss). I'm at a 112FSB now, but want to keep it at 124 (but at 124 I wanted to have more heatsink insurance if ya know what I mean)
If I knew of a solvent that would work on the goop I could remove the old sink without too much trouble. Tricky business, I guess I'll just have to point more fans at it and be happy with that.
Thanks
........CHNsaw

[gkar1]

Is the heat sink glued on the video chip?
If it is only held by tape, you can just jank it out by hand while it is still hot. Don't use any solvents 'cause yu may damage the trace metals on the PCB of the video card (very nasty).

I did that on a regular TNT a while ago and it didn't even leave any residue from the tape. Don't know if tnt2's have their heat sinks glued or taped.

Make sure the video card is pretty hot before you try janking it out(play Unreal Tournament for a long while hehe)

[Chainsaw]

gkar1,
I'll remove the card and take a close look, I think it's probably just taped as you suggest, good idea on letting it heat via intense graphics prior to attempting removal. I sure hate these nerve racking operations, what a guy will go through, just to get a few extra MHzs, it'd be killer with the new heatsink though!
edit~ Not to worry, I'll stay away from using a solvent.
Any and all other suggestions are most welcome.
Thanks,
........CHNsaw


[This message has been edited by Chainsaw (edited 12-01-1999).]

[Rafael]

How did u do Chainsaw... it was glued or taped? How did u get rid of it?

[Chainsaw]

I haven't removed it yet.
Unless it comes off fairly easy, I may not ever take it off, I sure don't want to kill the card. I also need to find some tape or goop to put the larger heatsink on, any suggestions there?

Thanks,
........CHNsaw

[RobRich]

One possible way to get around this is putting your heatsink on the back of the card behind the core. If you don't have any obstructions, use some thermal ("frag") tape and just stick it to it. You would be suprised on how much this helps.

[This message has been edited by RobRich (edited 12-02-1999).]

[Chainsaw]

That's actually a very good suggestion, I noticed that in the area of the "thru-pins" (I don't know if that's even close to what they are really called) it is definately warm and at times almost hot to the touch there. I did place another 486 type fan directed at that area and across the base of the CPU heatsink. I'll have to investigate to see if I can add a heatsink there too.

Thanks RobRich