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Can't overclock my inno3d 8600GT card - Page 3

post #21 of 30
Quote:
Originally Posted by neffage View Post
I've seen on forums that my card can go to 646/847 safely. So I tried to take it up to 640/840 and figured that that would be fine. Am I totally getting it wrong by setting it to that?
Or when I go and increase the speeds it's supposed to be in addition to my base clock so what I'm actually do is adding 640 to my base clock of 540Mhz
That really isn't how it works. Do not add the overclocks together. By 640mhz they mean 100mhz more than 540mhz. Besides cards vary alot some overclock better than others. Just increase the clocks slowly until you see any yellow dots in the ATITool scan window - once you see them stop and move on to shaders and memory.
Edited by coffeejunky - 5/28/08 at 5:20am
post #22 of 30
Quote:
Originally Posted by neffage View Post
I've seen on forums that my card can go to 646/847 safely. So I tried to take it up to 640/840 and figured that that would be fine. Am I totally getting it wrong by setting it to that?
Or when I go and increase the speeds it's supposed to be in addition to my base clock so what I'm actually do is adding 640 to my base clock of 540Mhz
You're going to have to find your maximum overclock yourself. Each card is different. Start by upping it 10MHz or so on the core (core will give the most improvement). Once it stops being stable after 10Mhz increments, drop it down a notch and try 5MHz. Once you've found your max core speed, do the exact same on the memory. Then try both out with the max STABLE speeds you've found. If that doesn't work....knock them down 5MHz at a time (memory first) until stable again.

You have to find your own overclock....nobody can tell you a magic number to set your card to. Each and EVERY card is different. Take mine for example....some people can hit 800+MHz on the core. Mine only hits 750....and this is with stock cooling (even for the ones hitting 800+). Like I said, each card WILL reach different speeds. You're going to have to find that out for yourself .
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Junkyard
(18 items)
 
NAStradamous
(12 items)
 
HTPC01
(16 items)
 
CPUMotherboardGraphicsRAM
Intel i5 2320 @ 3.1GHz MSI B75MA-E33 HIS HD7970 3GB @ 1050 / 1700, 1.17v Patriot 2x4GB DDR3-1066 
Hard DriveHard DriveOptical DriveCooling
Crucial MX100 256GB WD Green 2TB DVDRW Corsair H50 Push / Pull 
CoolingOSMonitorMonitor
NZXT 120mm fans strapped to stock 7970 cooler Windows 10 Pro Dell 3007WFP Dell 2007FP 
MonitorKeyboardPowerCase
Dell 2007FP Cheap Toshiba (R.I.P. Ducky) PC Power & Cooling Silencer MKIII 950w Cheap Garbage (free) 
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Windows 8.1 + Steam Big Picture / Plex HT 50" Insignia LED 1080p Logitech Rosewill Green 530w 
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post #23 of 30
Thread Starter 
So the reason that the evga program wouldn't highlight the test button is because I would take the slider all the way up to 600+ and it was beyond my clock?
post #24 of 30
Quote:
Originally Posted by neffage View Post
So the reason that the evga program wouldn't highlight the test button is because I would take the slider all the way up to 600+ and it was beyond my clock?
The test button on Precision doesn't work for me either. I just use ATITool to scan for artifacts. Just start at stock clocks and slowly raise the sliders one by one until you get artifracts.
post #25 of 30
Thread Starter 
How long should I test for artifacts when I change the speed by 10 each time?
post #26 of 30
Quote:
Originally Posted by neffage View Post
How long should I test for artifacts when I change the speed by 10 each time?
2-3minutes would do. Once you start seeing artifacts, lower the slider a couple of notches and do a 30minute artifact scan to get a final test of stability.
post #27 of 30
Thread Starter 
Ok it worked . However is it normal that I can't take the speed on the memory past 410 without running into artifacts? I've over clocked the GPU to around 610 from 540 and it still runs cool and stable.

Just not sure on how crucial it is to increase the speed of the memory too.
post #28 of 30
Quote:
Originally Posted by neffage View Post
Ok it worked . However is it normal that I can't take the speed on the memory past 410 without running into artifacts? I've over clocked the GPU to around 610 from 540 and it still runs cool and stable.

Just not sure on how crucial it is to increase the speed of the memory too.
The memory will give you better performance but if it won't go any further then thats as high as you can go . Nice overclock on the core though. You may want to click the 'unlink clocks' button which may allow you to clock higher on the core or shaders .
post #29 of 30
Thread Starter 
The stats that I've found on the net at what the memory speed should be set at all say 700Mhz. My stats seem to say 400Mhz.. should I not really worry about it or crank it to 700 like the factory stats on the net say and see what happens? 400 seems really low
post #30 of 30
Quote:
Originally Posted by neffage View Post
The stats that I've found on the net at what the memory speed should be set at all say 700Mhz. My stats seem to say 400Mhz.. should I not really worry about it or crank it to 700 like the factory stats on the net say and see what happens? 400 seems really low
Don't forget the memory is DDR (Double-Data-Rate) So 350mhz = 700mhz. 400mhz = 800mhz. I say leave it where it is stable .
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