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Old 09-25-07, 08:17 AM   #13
nekrosoft13
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Default Re: 8800gtx overclock

Quote:
Originally Posted by DRen72
For some crazy reason, COD2 and FEAR would heat up my GTX to well over 90 degrees and I'd start getting random but infrequent lockups. After going to the Thermalright HR03 Plus the thing never goes over 78 degrees no matter what and I've never had a video lockup since. I also started pushing the O/C higher. I'm running it at 620/2000 all the time. I see others are doing the same.
i would get Thermalright HR03, but that probably means i would have to get rid of my capture card and maybe the x-fi as well.
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Old 09-26-07, 10:00 AM   #14
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Default Re: 8800gtx overclock

Mine did 634 on the core fine with the stock cooler. I'd probably try 1450, 1550 or 1566 on the shader clock.

I use to use ATi Tool to reduce my 2D clock to 350. I had two profiles I created, one was the OC and one was reduced for when the card wasn't doing much. I would use nTune to jack my fan up when I gamed.

When I installed the TR HR-03 Plus I just flashed my card to 659|2040 with a 1566 shader clock and called it a day. I moved to the TR HR-03 Plus because I couldn't stand my 61-64C idle temps, and yes that was even stock speed. The TR HR-03 Plus is great if you don't need those extra PCI slots. I still have one open at the bottom with it installed. Now I idle 45-47C and load 56-58, depending on ambient room temp.

If you want to keep all your slots and cool the card well, look into water cooling.

Below is a great thread for anyone new to flashing a GTX. The best approach is to edit the BIOS that shipped with the card and flash it in. Of course, folks should save said BIOS in its pristine state.

http://www.hardforum.com/showthread.php?t=1199078
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Old 09-27-07, 08:43 AM   #15
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Default Re: 8800gtx overclock

Quote:
Originally Posted by Blacklash
Mine did 634 on the core fine with the stock cooler. I'd probably try 1450, 1550 or 1566 on the shader clock.

I use to use ATi Tool to reduce my 2D clock to 350. I had two profiles I created, one was the OC and one was reduced for when the card wasn't doing much. I would use nTune to jack my fan up when I gamed.

When I installed the TR HR-03 Plus I just flashed my card to 659|2040 with a 1566 shader clock and called it a day. I moved to the TR HR-03 Plus because I couldn't stand my 61-64C idle temps, and yes that was even stock speed. The TR HR-03 Plus is great if you don't need those extra PCI slots. I still have one open at the bottom with it installed. Now I idle 45-47C and load 56-58, depending on ambient room temp.

If you want to keep all your slots and cool the card well, look into water cooling.

Below is a great thread for anyone new to flashing a GTX. The best approach is to edit the BIOS that shipped with the card and flash it in. Of course, folks should save said BIOS in its pristine state.

http://www.hardforum.com/showthread.php?t=1199078


yes water cooling is ok. its not noicy... but my fan and HR-03 " Delta - FFB 1212 EHE" makes my gfx oc2 load at 56 cc MAX.. so its allot cooler than water cooling.. but omg its loud...
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Old 10-03-07, 08:23 AM   #16
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Default Re: 8800gtx overclock

The Thermalright H0-3 Pulse is a stealer cooler but mind you it will put ll that heat into your PC case and take up 4 slots while doing it I had my GTX at a core clock of 670 running high temps of 67C but I went back to the stock cooler due to heat concerns on the CPU end. If any one is interested in a H0-3 Pulse I have one floating around here
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Old 10-24-07, 07:38 AM   #17
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Default Re: 8800gtx overclock

Quote:
Originally Posted by crazycheetah
yes water cooling is ok. its not noicy... but my fan and HR-03 " Delta - FFB 1212 EHE" makes my gfx oc2 load at 56 cc MAX.. so its allot cooler than water cooling.. but omg its loud...
"A lot cooler than water?" Hardly. At stock settings on my Ultra my card loads at 54C. With it clocked to 700|1836|2300 it loads at 58C. And that's with my quad in the loop with it.

When I had my GTX before, it loaded at 51C when overclocked to 650|2100.

A good water setup will always be more effective than the best air-cooled heatsink money can buy.
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Old 10-24-07, 09:35 AM   #18
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Default Re: 8800gtx overclock

Quote:
Originally Posted by Xion X2
"A lot cooler than water?" Hardly. At stock settings on my Ultra my card loads at 54C. With it clocked to 700|1836|2300 it loads at 58C. And that's with my quad in the loop with it.

When I had my GTX before, it loaded at 51C when overclocked to 650|2100.

A good water setup will always be more effective than the best air-cooled heatsink money can buy.

Yea air is never better than water - I don't care what you're smoking.

I didn't even realize the shader would run 1800!! I stopped at 1566, do you have some information on the shader clocks after 1566? I couldn't find any documentation on further steps (like the ram and core that clock in steps).

Anyways I got my GTX to 621/1566/1054 right now, flashed. With a B3 Q6600 @ 3.5Ghz my GTX still runs 38 idle, 43 - 44 loaded. Using a PA120.2 rad though and MCW60 with Fuzion on the CPU.
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Old 10-24-07, 06:23 PM   #19
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Default Re: 8800gtx overclock

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Originally Posted by conroejoe
I didn't even realize the shader would run 1800!! I stopped at 1566, do you have some information on the shader clocks after 1566?
Man it really flies when you overclock the shaders. Fo' real. Jericho stays pinned at my refresh rate on highest settings w/ 4x edge-smoothing enabled.

You can overclock the shaders individually with the latest RivaTuner. You may want to see if you can push yours more, because I have a friend with a GTX who's hit 1700 on the shaders. Here's mine:


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Old 10-24-07, 07:16 PM   #20
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Default Re: 8800gtx overclock

What happens when the shaders get pushed too far? Lockup, artifacts?
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Old 10-24-07, 07:22 PM   #21
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Default Re: 8800gtx overclock

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Originally Posted by conroejoe
What happens when the shaders get pushed too far? Lockup, artifacts?
Don't know. Haven't found the ceiling on her yet. I've been increasing them a little at a time just to make sure it's stable with all of my games.

I would guess that's what will happen, though.
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Old 10-24-07, 07:23 PM   #22
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Default Re: 8800gtx overclock

artifacts when pushed too far... mine tops out at 1620... not bad considering the core cant overclock over 620mhz even with my HR-03 Plus
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Old 10-24-07, 07:49 PM   #23
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Default Re: 8800gtx overclock

Quote:
Originally Posted by nekrosoft13
i would get Thermalright HR03, but that probably means i would have to get rid of my capture card and maybe the x-fi as well.
You could always do what im going to do when i get my antech 900!

Right now i have my fan so the HR-03 Plus heatsink is below the card! .... when i get my antech 900 im going to turn my Ultra-120 eXtreme around so the warm air from the ultra 120 is blowing up to the top of the case and onto the big 200mm fan, then im going to put my HR-03 Plus so that the heatsink is above the card(how you would have it with SLi)then below the card i have a Spectrum dual Fan card(see below pic), this card mounts in a pci slot and will blow cool air onto the underside of my graphics card keeping the memory & other components cool, this dual fan card only takes up one slot leaving you afew extra pci slots for sound cards ect.

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Old 10-25-07, 08:15 AM   #24
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Default Re: 8800gtx overclock

Quote:
Originally Posted by ATOJAR
You could always do what im going to do when i get my antech 900!

Right now i have my fan so the HR-03 Plus heatsink is below the card! .... when i get my antech 900 im going to turn my Ultra-120 eXtreme around so the warm air from the ultra 120 is blowing up to the top of the case and onto the big 200mm fan, then im going to put my HR-03 Plus so that the heatsink is above the card(how you would have it with SLi)then below the card i have a Spectrum dual Fan card(see below pic), this card mounts in a pci slot and will blow cool air onto the underside of my graphics card keeping the memory & other components cool, this dual fan card only takes up one slot leaving you afew extra pci slots for sound cards ect.

That won't work too well, I don't think. You need the heatsink sitting over the GPU.. not the back of the card.
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