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G80 IHS removal

infrared

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#1
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
 

infrared

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#2
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:
 
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#3
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
 
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#4
Auto painting shop or napa/autozone should have some wetsand and dry sand fine grits for finishing, or check with a lumberyard/paint store.
 

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#5
Hmm... sell my GTS or remove the IHS and v-mod it? I'm not sure if my hands are steady enough.:eek:
 

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#6
Hmm... sell my GTS or remove the IHS and v-mod it? I'm not sure if my hands are steady enough.:eek:
it's a g80, sell it and go for a g92 if you don't feel like going to the red side.
 
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#7
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!!!
 

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#8
it's a g80, sell it and go for a g92 if you don't feel like going to the red side.
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.
 

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#9
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.
Do it, DO IT!!!!!








Oh, and post pics. lol.
 
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#10
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:


G80 stock TIM between core and IHS is utterly horrible cr@p:
 

infrared

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#11
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.

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.
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.
 
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#12
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.
 

infrared

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#13
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 :(
 

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#14
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 :(
nice!
btw, that ram will hit 1200 no problem.
 

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#15
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:
 
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#16

infrared

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#17
lol, yep. Very accurate prediction! :D
 

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#18
when i get my taxes back im going to do this too!
 

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#19

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#20

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#21
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!
 

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#22
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!
what im waiting for too!
getting 8800gts (or 9800gtx if its worth it) with the tax return lol
and then off comes the ihs
 

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#23
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.
Largon... on a DIFFICULTY scale of 1 to 10... rate it
and on a DANGER scale of 1 to 10... rate it
please :)

:)
 

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Software Win 10 & Linux Mint 18.1
#24
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
 

infrared

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System Name Raisin
Processor Ryzen 7 1800X (binned silicon lottery chip, good for 4.2GHz)
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Cooling 240mm rad with corsair ML fans, EK D5 pump/res, XSPC raystorm pro, lapped.
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Keyboard Cherry MX Board 6.0
Software Win 10 & Linux Mint 18.1
#25
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!
 
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