G80 IHS removal

erocker · Mar 9, 2008

Wow, that's a full 10c difference than my 8800 with the fan at 100%!

largon · Mar 11, 2008

hat said:
Largon... on a DIFFICULTY scale of 1 to 10... rate it
and on a DANGER scale of 1 to 10... rate it
please

Difficulty scale: 8
The epoxy that holds the IHS on is very strong, requires a nasty amount of force to pry it off...

Danger scale: 5
Pretty much the only actual risk is the possible collateral damage to the board PCB (scratches, etc.). That's because there's no use to cut the epoxy that holds the IHS on - or rather there is no such blade that will cut it. So, in the end, the SMDs under the IHS are perfectly safe just be careful not to slip the screwdriver...

infrared · Mar 11, 2008

So you're just levering it off, rather than cutting around the edges?

Hmm, if i clamp the IHS in a vice, and carefully twist, would that pull it off or pull the two pcb's apart?

largon · Mar 11, 2008

Yup, the epoxy is way too hard to cut with any blade.
Twisting it while clamped would put some nasty strain on the BGA solder balls, I wouldn't dare risking ripping the whole GPU out. I popped mine like this: first slipped a thin razor blade under one of the corners, then forced the gap wider with another, thicker blade. Finally I levered it with a flat screwdriver until it popped. The razor blade was there just to protect the GPU substrate from the screwdriver's tip while prying.

infrared · Mar 11, 2008

Ah, nice one. I'll give that a go

Thanks

infrared · Mar 11, 2008

IT'S OFF!!! W00T!!!

I did what you said largon, got some razor blades under the corner, and i used a sharp chisel to lever it up. You're right about the force required, i was really worried. Started hearing a ripping noise, and i thought.. well, this is the make or brake moment, and it poped off!

I Don't think i've applied the TIM very well though, because of the sheer size of the die, but temps are now:

34c idle 43c load

I'll upload the pics!

EDIT: Ok, pictures!!

^Oops, fitted the cooler the wrong way round. Need sleep lol!

EDIT: ^ I removed the two ramsinks that were getting in the way. I've put the larger ramsinks on the back of the pcb, which should keep the chips cool enough.

infrared · Mar 11, 2008

I reseated the heatsink, and applied the thinnest layer of TIM i can. I found after a few re-seats that the stock thermalright stuff that comes with the HR-03 Plus is really good! It's like ceramique, but a lot less viscouse (sp?), so it's easier to apply.

New temps!! 32c idle, 39c load, 42c max o.c. load.

newtekie1 · Mar 11, 2008

infrared said:
Hopefully i can do a nice lapping job of the cooler first, but i'm not sure where to get any really fine sandpaper, up to 1500 grit +. Any ideas?

I get mine from my local autoparts store, they usually carry 2500+. If you want higher, try your local autobody shop, they usually have 10,000 or higher on hand, and if you ask nicely they will usually give you a few pieces for free.

erocker · Mar 11, 2008

Wow! Nice job man! :toast:

infrared · Mar 11, 2008

Cheers dude, hurry and do yours!!!

Going round one of my mate's dad's house soon to get the voltmods done. He does very fine pcb soldering for a living, and his soldering is top-notch.

sneekypeet · Mar 11, 2008

42 Friggin Degrees Celcius Load?????

Thats just truely amazing!!!!! :toast:

CY:G · Mar 11, 2008

Thats unreal, keep up the good job Infrared

infrared · Mar 11, 2008

Thanks guys!

Wile E · Mar 11, 2008

Holy crap!!! What an amazing temp difference. Makes you wonder why NV decided to use an IHS to begun with?

hat · Mar 12, 2008

I dunno there's no IHS on my 8500

You lapped the core infared?

infrared · Mar 12, 2008

hat said:
I dunno there's no IHS on my 8500

You lapped the core infared?

lol, no. And don't tempt me!

Nah, i don't think there's any need. It's pretty flat already.

Random Murderer · Mar 12, 2008

infrared said:
lol, no. And don't tempt me!

Nah, i don't think there's any need. It's pretty flat already.

i don't think you can lap a bare core...

intel igent · Mar 12, 2008

congrats infrared

glad to see it worked out well for you. thnx for posting the pix

:toast:

Wile E · Mar 12, 2008

Random Murderer said:
i don't think you can lap a bare core...

You can on a cpu. That curt guy did it to one of his Opty's, because he was unhappy with the temp difference between cores. It actually worked.

thebeephaha · Mar 12, 2008

I would do this but my Ultra was $750 when I bought it, that is a lot of money to lose if I screw up...

erocker · Mar 12, 2008

Does anyone know if the stock cooler will fit alright when I remove the IHS?

infrared · Mar 12, 2008

Nope. No chance mate.

erocker · Mar 12, 2008

Eh, crap. Any suggestion for a cooler that will work that won't take up three or fours slots?

newtekie1 · Mar 12, 2008

I don't see why the Zalman VF-1000 shouldn't work, and only take up 2 slots.

tkpenalty · Mar 13, 2008

Please remind me, WHY did nvidia decide to add an IHS?

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G80 IHS removal

erocker

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infrared

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infrared

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erocker

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Wile E

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