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G80 IHS removal

Discussion in 'Overclocking & Cooling' started by infrared, Feb 26, 2008.

  1. infrared New Member

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    Well, the modding bug has bit me again. I knew it wouldn't be long!

    I'm getting sick of the high temperatures on my 8800gts 640mb.. At the moment with 100% fan it will reach a load temp of 68c @ 675mhz core, which isn't too bad I suppose, but I'm also planning to volt-mod it and bring teh vgpu up to at least 1.5v, hopefully yeilding ~750mhz with better cooling.

    So, when I get paid i'll be ordering a ThermalRight HR-03 GT, and removing the IHS. They did it on a dead card over at VR-zone, looks simple enough to do since the core isn't glued or anything. I'll just have to be carefull with all the tiny surface mounted caps/resistors so close to the edge.

    http://www.vr-zone.com/articles/Stripping_The_GeForce_8800_Heatspreader/4352.html

    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?

    Is anyone else here running a naked G80? I'd like to hear how much of an improvement it made.

    Cheers, Simon
  2. infrared New Member

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    Nice one, thanks.

    Haha, look at the lapping job he did on the stock intel cooler! A very nice job, but what a waste of time! :wtf:
    Last edited: Feb 26, 2008
  3. exodusprime1337

    exodusprime1337

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    looks like my thread on ihs removal is getting people in the mood. i've got a 320gts that i'll be retiring here in a week or two when my 8800gts g92 comes in. let me know how it works out i may pull mine off as well
  4. Steevo

    Steevo

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    Auto painting shop or napa/autozone should have some wetsand and dry sand fine grits for finishing, or check with a lumberyard/paint store.
    10 Million points folded for TPU
  5. erocker

    erocker Super Moderator Staff Member

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    Hmm... sell my GTS or remove the IHS and v-mod it? I'm not sure if my hands are steady enough.:eek:
  6. Random Murderer

    Random Murderer The Anti-Midas

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    it's a g80, sell it and go for a g92 if you don't feel like going to the red side.
  7. Beertintedgoggles

    Beertintedgoggles

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    In the past I've bought all my 1500 and 2000 grit paper at autozone; however, you can get much better deals on the stuff if you search around a bit online. Just make sure to buy it before or when you get your cooler.... as much as I buy online, I hate to wait!!!
  8. erocker

    erocker Super Moderator Staff Member

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    Lol, I have two red cards sitting here lookin at me!:D I do own a crossfire motherboard after all. My eVGA G80 card (which was made in the final 2,500 card batch) currently does 726/1087 and idles at 48c Load 67c. I'm doing it. If I screw it up, oh well:ohwell:, if it works, I'll sell it at a premium.
  9. Wile E

    Wile E Power User

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    Do it, DO IT!!!!!








    Oh, and post pics. lol.
  10. largon New Member

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    It is one tough bugger...
    But as usual, there's no better solution than brute force 'n' violence.

    My A3 cored eVGA 8800GTS 320MB I had sometime ago:
    [​IMG]

    G80 stock TIM between core and IHS is utterly horrible cr@p:
    [​IMG]
  11. infrared New Member

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    ooo, nice pics largon. Was that a dead or working card? Temps?

    There's a trade outlet for car stuff called maccess or something like that. I think my dad's business has an account set up so i could try there for the sandpaper.

    Nice one! Teh EVGA cards are great clockers, but you've got a real diamond! Will be great to see how far you can take that once the ihs has been popped off.
  12. largon New Member

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    infrared,
    The card was alive "post-op". It did (does) 729MHz/1899MHz/DDR-2160 @ 1.33v w/o IHS. I wish a proper OCP mod was available back then, I bet 800MHz+ should've be doable on water with this card...
    ;)

    Unfortunately I can't really say about temp gain as I removed the IHS as soon as I put it under water. And since stock HSF is useless with a IHSless GPU... It's definitely worth removing - considering the fact that G80 TIM is a thick, rubberish that actually prevents any silicon-2-IHS contact.
  13. infrared New Member

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    Thanks for the info largon!

    Ok, got paid!! I've ordered the ThermalRight HR-03-Plus, and a 92mm fan

    http://www.overclockers.co.uk/showproduct.php?prodid=FG-011-SY

    ^ I know it's not the highest output fan in the world, but seems a nice balance between noise and performance. I can also run it from the fan header on the card if i solder the connector from the stock fan onto it.

    I also purchased some new ram while i was there! Couldn't resist getting my hands on some new Crucial memory! (see specs! :D)

    Ok... Now after paying rent i'm pretty much back to my overdraft limit :(
  14. Random Murderer

    Random Murderer The Anti-Midas

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    nice!
    btw, that ram will hit 1200 no problem.
  15. infrared New Member

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    Yeah, I used to have some pc2-6400 Crucial ballistix which was a review sample. That stuff hit 1260mhz o_O

    Unfortunatly my younger brother toasted it by not slotting it into his computer properly :cry:
  16. Frogger

    Frogger

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    Didn't take that long :toast:
  17. infrared New Member

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    lol, yep. Very accurate prediction! :D
  18. BigD6997

    BigD6997 New Member

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    when i get my taxes back im going to do this too!
  19. erocker

    erocker Super Moderator Staff Member

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    Still waiting on my new card first.;)
  20. Wile E

    Wile E Power User

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    Ehh, wuss.:nutkick: :laugh: :toast:
  21. erocker

    erocker Super Moderator Staff Member

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    Oh, and then poor erocker is stuck with no working computer if he screws it up.:( The new card shall arrive soon!:D Pics will be posted! I just hope this doesn't lead to a screwed up resistor and/or stitches in any thumbs or fingers. Either way... THERE WILL BE PICS!
  22. BigD6997

    BigD6997 New Member

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    what im waiting for too!
    getting 8800gts (or 9800gtx if its worth it) with the tax return lol
    and then off comes the ihs
  23. hat

    hat Maximum Overclocker

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

    :)
    Crunching for Team TPU
  24. infrared New Member

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    Danger at least 8 looking at how close those smc's are to the edge of the IHS.

    For comparison i would probably say 10/10 is difficulty for de-ihs'ing an intel LGA chip, but it is doable.

    Update anyway:

    Got the Lapping kit, so my 8800 should be IHS free within a week :D
  25. infrared New Member

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    Ok, heatsink lapped! Took about 3 hours, but it's perfectly flat and a mirror finish. I havn't tried taking the ihs off yet, but the temperature difference just by lapping is amazing! I litterally applied such a thin layer of Ceramique that you could still see the nvidia logo through it.

    Idle: 36c Load: 45c.

    EDIT: Maximum overclock has improved to 702/1620/1053. Looking forward to seeing how much i can get out of it with more voltage!
    Last edited: Mar 9, 2008

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