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Will this hold up? literaly?

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attack

Member
Joined
May 23, 2002
Ok I'm getting a ti4200 and wanna OC the living hell out of it. So I plan on epoxying a nice HS on it. The heatsink I want to use is an old global win CAK-38. (I took off the jet engine fan and put on a quiter one) If your not familar with this, it weighs around 450g. here is a link to the CAKII 38 which is pretty similar:
http://www.globalwinusa.com/products/cakii38.html
I'll be using AS epoxy so my question is now will it stay on, but would it be safe for the card itself to be udner that stress? I ould probably get a small plastic rod and run it from the bottom of the case to the outmost edge of the card if it was neccessary. What do you all think?
 

dumpa

Member
Joined
Nov 19, 2002
Location
USA
That HSF is really heavy. You coud support your card with something, but PCBs are much stronger than people think (ever tried to break one ?).

My concern would be HSF falling off, and I would never worry about the card iteself.

I'd do it.

So what if you kill your card :p ?

Good luck....
 

madsam

Member
Joined
May 3, 2002
Location
New York
i had a dragon orb on mine, and i had no problems at all. i used 2 tie wraps to hold mine on tmporarily, but to my surprise, it held it in place quite well, and when i removed the dragon orb from the gf4 , it was literally stuck in plce, using just the as3...not the adhesive.

i also did a test using as adhesive, and when i mounted a heatsink to an old graphics card's chip, it was very easy for my 11 yr old son to pull it off. then, upon a closer look, i noticed the heatsink had some cheap annodize or something on it, so, i lapped it smooth, and down to the aluminum. i then lapped the coating or whatever was on the old graphics card, i cleaned both surfaces with alcohol, and mounted them together with as adhesive again. this time, my son could not remove it. i was, however, strong enough to rip it off...and to my surprise, i tore the chip completely off the circuit board, and the chip is still stuck to the heatsink around here somewhere. so, if you have both surfaces clean, and both are without any coating, the as adhesive shouyld work fine, ......i assume it works as well with copper, as it does with aluminum.

as for the weight.....the video card should hardly flex, if at all, but i would be more concerned about maybe causing it to loosen the video cards connection in the agp slot, and not worry about it "breaking" the card.

as i said, i used the dragon orb, which is pretty tall, and awkward, and i had no problems at all.

i think modding that much copper to the video card is just simply "not" for the weak at heart ;)
 
OP
attack

attack

Member
Joined
May 23, 2002
sweet, sounds like a go...just gotta wait for the video card to get here...then test with stock stuff to see the gains...i hait OCing with stock cooling arrrrrr. :p
 

madsam

Member
Joined
May 3, 2002
Location
New York
ajrettke said:
sweet, sounds like a go...just gotta wait for the video card to get here...then test with stock stuff to see the gains...i hait OCing with stock cooling arrrrrr. :p

i went back to stock, so, i feel your pain............:D
 

GravY

Member
Joined
Jan 25, 2002
Location
Michigan
Lap that GPU, I just did a TI4600 that would not overclock at all and found the GPU to have a sinkhole in the center, after lapping I was able to get it up to 330mhz from 300..
 
OP
attack

attack

Member
Joined
May 23, 2002
hmm how do you lap the core of the GPU? put the sand paper on a heatsink and use that for the sander? I'm used to putting a large sheet on a mirror and lapping waterblocks and heatsinks...never tried CPU's or GPU's
 

GravY

Member
Joined
Jan 25, 2002
Location
Michigan
yep, make sure your block is flat.. :)

this core was so not flat, I took it down as flat as I could get it with out being worried of going too far.. most will note the black surrounding the core is actually taller than the core is, this is the main thing to knock down, also you can lap till you get to the copper core, most will not be as bad as my example here, but I did manage to get 30mhz more out of it after the Lapping.. I got this card for free so I did a quick job on it, only down to 1200 grit..
I also put on some ramsinks I cut from some crap I had laying around, they will need to be re-done as well, as they were too narrow.. oh well..


http://mywebpages.comcast.net/gravy/core1.jpg

http://mywebpages.comcast.net/gravy/core2.jpg

http://mywebpages.comcast.net/gravy/croe3.jpg

http://mywebpages.comcast.net/gravy/core4.jpg

http://mywebpages.comcast.net/gravy/ti4600.jpg

of course be careful and cover your board with an antistaic bag to keep the tiny shavings away from things it shouldn't be in contact with..
 

bill

Member
Joined
Jan 28, 2003
If you dont want to glue it you can make a pattern of the holes from the old heatsink & drill & tap the new 1 . copper & alum. tap easy. i used a big *** alum coolermaster hsf i had laying around & i cut up a pentium hs for ramsinks. i test it now im going to lap & retest.

(nice job GravY)