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Optimal OC for 8800gt

post #1 of 25
Thread Starter 
I already have an OC'd version of the 8800gt with 650mhz Core Clock and 1900Mhz Memory Clock. I don't know the 3rd stat everyone always associates with GPUs and their overclocking specs, as I've never really been into OCing them until now.

I downloaded Rivatuner and I don't understand it. Before I do any damage, would anyone like to help, or maybe even just tell me what their OC settings were for an 8800gt?
    
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post #2 of 25
OC core first then shader then memory. OC 5mhz at a time test with ati tool for 20minutes after, then OC again untill you get artifacts.

Edit: turn your gpu's fan speed up to 100% also.
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post #3 of 25
Thread Starter 
Am I gonna be able to tell a difference in my gaming if, for example, everything gets bumped up 30mhz?

I know with Processors, going from 3.2 to 3.4 isn't even a noticeable difference.
    
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C2D E6750 @ 3.57Ghz, 1.345vcore, load temp - 50C Asus P5N-E SLI 650i HIS HD4870 512mb 2x2gb Mushkin 840mhz 
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1000Gb, 250Gb, 160Gb - External Windows XP Acer AL2216W Saitek Eclipse 2 
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post #4 of 25
If your OC is significant yes. Start with core though DO NOT OC shader or memory until you have found your max stable core clock as they make little to no difference.
That Loud Thing
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That Loud Thing
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Hard DriveOptical DriveOSMonitor
WD 250gb 7200rpm+ Hitachi 120gb 7200rpm Philips DVD+R Vista Home Premium x64 HP w1907 
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post #5 of 25
GPU fan up to 100% is incredibly loud with an 8800gt..
I have mine OC'ed at 100mhz more than stock with 50% fan speed and it works fine.
post #6 of 25
Correction OC with 100% fan tehn lower to acceptible noise level after OC is finished. Then re artifact scan.
That Loud Thing
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That Loud Thing
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post #7 of 25
Thread Starter 
Gotcha. I'll mess with it some. What is a good range to keep my GPU within temperature-wise? +Rep for both of you.
    
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C2D E6750 @ 3.57Ghz, 1.345vcore, load temp - 50C Asus P5N-E SLI 650i HIS HD4870 512mb 2x2gb Mushkin 840mhz 
Hard DriveOSMonitorKeyboard
1000Gb, 250Gb, 160Gb - External Windows XP Acer AL2216W Saitek Eclipse 2 
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post #8 of 25
Anything under 80c under load is good. under 70c is ideal.
That Loud Thing
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Hard DriveOptical DriveOSMonitor
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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 #9 of 25
Under 80 degrees under load would be preferable. Although I've heard 8800GTs can take up to 90... I wouldn't push it that far =/
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Sager 8170
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post #10 of 25
Thread Starter 
What's the most you can ever let it get to before it becomes a threat to the chip?

Also, in ATItool I see the settings for Core clock and Memory Clock in the following categories:

2D
3D Low Power
3D Perf.

So if I'm bumping the core up 5mhz, do I do it to each one listed as Core? Where are the shader clock settings? Sorry if I'm asking a lot of questions, I like to be cautious and know what I'm doing.

EDIT: Thanks Zeag! +rep
    
CPUMotherboardGraphicsRAM
C2D E6750 @ 3.57Ghz, 1.345vcore, load temp - 50C Asus P5N-E SLI 650i HIS HD4870 512mb 2x2gb Mushkin 840mhz 
Hard DriveOSMonitorKeyboard
1000Gb, 250Gb, 160Gb - External Windows XP Acer AL2216W Saitek Eclipse 2 
PowerCaseMouse
Coolermaster 650w PSU Xion Onyx (black/green) Logitech MX310 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
C2D E6750 @ 3.57Ghz, 1.345vcore, load temp - 50C Asus P5N-E SLI 650i HIS HD4870 512mb 2x2gb Mushkin 840mhz 
Hard DriveOSMonitorKeyboard
1000Gb, 250Gb, 160Gb - External Windows XP Acer AL2216W Saitek Eclipse 2 
PowerCaseMouse
Coolermaster 650w PSU Xion Onyx (black/green) Logitech MX310 
  hide details  
Reply
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