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PNY 8800GT refuses to overclock...!?

post #1 of 13
Thread Starter 
Maybe I went a bit extreme with the title but anyways here's my problem:
I've been overclocking my PNY 8800GT, but I can't seem to pass by 674/1011/1685 stable(core,memory,shader(i know people confuse them a lot, well at least me, so I labeled them )) and I'm wondering why? I've seen reported OCes of up to 750 core clock etc, etc, and I'm wondering why I can't even get close to 700Mhz core clock? I know for sure that it's NOT a heat problem as I have recently installed an Accelero S1 which keeps my card at 53*C load (OCed to the earlier mentioned speeds) + my fan should come today which should lower it even more, so my question is, why wouldn't the card want to OC higher, and if in any way, How can I get a higher OC?

Thanks,
Yours truly,
Alex
    
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post #2 of 13
Ist turn down shader, and memory clocks. Then take core as far as you can, then do the other clocks. Beyond that you need to voltmod.
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post #3 of 13
Thread Starter 
Quote:
Originally Posted by Frontline View Post
Ist turn down shader, and memory clocks. Then take core as far as you can, then do the other clocks. Beyond that you need to voltmod.
That is the order I used. How do I "voltmod" ?
    
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E6750 @ 3.4Ghz (stable) Gigabyte GAP35 DS3L PNY 8800GT 4GB 1020Mhz - G.Skill ram 
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E6750 @ 3.4Ghz (stable) Gigabyte GAP35 DS3L PNY 8800GT 4GB 1020Mhz - G.Skill ram 
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post #4 of 13
It consists of using a pensil and graphite w/ a little thingy on the graphics card. Thats all I know.
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post #5 of 13
http://iax-tech.com/video/8800gt/8800gt01.htm

There is also a way to do it through a bios flash.
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post #6 of 13
i have only the Bios vMod done.. and i get this
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post #7 of 13
OMG nice man you 8800 is the
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That Loud Thing
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post #8 of 13
Quote:
Originally Posted by Frontline View Post
OMG nice man you 8800 is the
yeah.. the Golden Sample cooler ROCKS! 62ºC under load @ 50% fanspped well i modded it so its now a tri-slot cooler :F

cant wait for my VR to come so i can do some real voltmods

LOL actually the 1.1V bios Vmod gives me 1.17V under load
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post #9 of 13
Seeing the OC you have gotten I am starting to consider the vm. I found a link to a bios vm. http://www.hardforum.com/showthread....1249339&page=2 Is this like what you did?
That Loud Thing
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CPUMotherboardGraphicsRAM
e6750@ 3.18ghz stock vcore Intel DP35DP (OC'ers worst nightmare) XFX 8800gt@ 734/1728/972 Kingston generic 4x1gb 
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RAIDMAX RX-600F 600w Sunbeam Transformer 
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That Loud Thing
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CPUMotherboardGraphicsRAM
e6750@ 3.18ghz stock vcore Intel DP35DP (OC'ers worst nightmare) XFX 8800gt@ 734/1728/972 Kingston generic 4x1gb 
Hard DriveOptical DriveOSMonitor
WD 250gb 7200rpm+ Hitachi 120gb 7200rpm Philips DVD+R Vista Home Premium x64 HP w1907 
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post #10 of 13
Quote:
Originally Posted by Frontline View Post
Seeing the OC you have gotten I am starting to consider the vm. I found a link to a bios vm. http://www.hardforum.com/showthread....1249339&page=2 Is this like what you did?
almost, actualy i made it a bit easier way, i used NiBiTor to read the bios so i didnt need to reboot

but basicaly that was what i did, get the bios, change the "extra" to 1.1V and flash it using nvFlash
Minimachine
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Minimachine
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CPUMotherboardGraphicsRAM
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Samsung 950 PRO 512GB M.2 NVMe 3x Asus PB287Q 4k Silverstone 600W Strider SFX NCASE M1 Rev 2 
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