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how much is the best range to OC my HD5770?

post #1 of 36
Thread Starter 
Mine is Gigabytes HD5770, any suggestion?
post #2 of 36
try for ~900mhz. if you want to push further and you can modify the GPU core voltage, some have hit 1000mhz, but having that stable is not common.

just see where your card becomes unstable by using one of the several free stress testing programs.
    
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CPUMotherboardGraphicsRAM
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post #3 of 36
Thread Starter 
Quote:
Originally Posted by IntelConvert View Post
try for ~900mhz. if you want to push further and you can modify the GPU core voltage, some have hit 1000mhz, but having that stable is not common.

just see where your card becomes unstable by using one of the several free stress testing programs.
Do you OC your 5770?

I seek for stable, so I guess 900 is not a bad target.
post #4 of 36
im havn issues with overclocking my 5770 atm also man. Im pretty much stress testing the card as the pc is new and for sale. But yea 950 is achievable but only about 90% stable. Shader clock is very hard to overclock at all.
 
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post #5 of 36
my xfx does 950 stable on stock voltage easily,didn't push further
post #6 of 36
Thread Starter 
Quote:
Originally Posted by Seanay00 View Post
im havn issues with overclocking my 5770 atm also man. Im pretty much stress testing the card as the pc is new and for sale. But yea 950 is achievable but only about 90% stable. Shader clock is very hard to overclock at all.
What would be the highest stable point you can get? How about memory speed?
post #7 of 36
Thread Starter 
I will use furmark to stress test it.
post #8 of 36
Quote:
Originally Posted by crunchor View Post
What would be the highest stable point you can get? How about memory speed?
each card is different,you have to find it find out by trial and error,no short cuts
post #9 of 36
Thread Starter 
Quote:
Originally Posted by maxslater View Post
each card is different,you have to find it find out by trial and error,no short cuts
Am I going to hurt or break my card while I put it too much during testing.
post #10 of 36
Quote:
Originally Posted by crunchor View Post
Am I going to hurt or break my card while I put it too much during testing.
Not unless you adjust the voltage, or let temps stray out of TJ limits.

900mhz is a good target on stock voltages
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