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how much is the best range to OC my HD5770? - Page 2

post #11 of 36
http://www.overclock.net/ati/633816-...r-ati-gpu.html
nice tut
i recommend furmark for testing(keep a look out for temo,keep it say below 95c)
post #12 of 36
Quote:
Originally Posted by crunchor View Post
Do you OC your 5770?

I seek for stable, so I guess 900 is not a bad target.
the PSU i had at the time wasnt able to supply enough power to OC my 5770, so i havent been able to see what mine can do yet i need to RMA my motherboard to get my computer back up so i can push my CPU and GPU further into the sky! lol

Quote:
Am I going to hurt or break my card while I put it too much during testing.
just keep an eye on temps. if you dont modify the voltage, you should be pretty safe. once you start raising the volts, you need to be very careful with temps. i dont like to see temps on my 5770 in the 80s. if it gets to 80-82, i usually stop the test and adjust my fans to keep the temps down
    
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post #13 of 36
Thread Starter 
Quote:
Originally Posted by maxslater View Post
http://www.overclock.net/ati/633816-...r-ati-gpu.html
nice tut
i recommend furmark for testing(keep a look out for temo,keep it say below 95c)
Sure, I heard furmark stresses much more than normal games or benchmarks.
post #14 of 36
Thread Starter 
Quote:
Originally Posted by IntelConvert View Post
the PSU i had at the time wasnt able to supply enough power to OC my 5770, so i havent been able to see what mine can do yet i need to RMA my motherboard to get my computer back up so i can push my CPU and GPU further into the sky! lol



just keep an eye on temps. if you dont modify the voltage, you should be pretty safe. once you start raising the volts, you need to be very careful with temps. i dont like to see temps on my 5770 in the 80s. if it gets to 80-82, i usually stop the test and adjust my fans to keep the temps down
OC graphics card shouldn't take a lot more power comparing with non OC, that really make you need to buy a new PSU?
post #15 of 36
let us know how it goes, happy overclocking
post #16 of 36
OCing can use a significant amount of power. it can increase the wattage use of your GPU by 20-40w at 100% usage. (this makes the 5770, a ~150w max card nearly a 200w card) and yes, my old coolermaster PSU would overheat and shut down if i tried running a stress test after OCing my GPU, but i could play crysis warhead and run stress tests at stock clocks without issues.

Quote:
Sure, I heard furmark stresses much more than normal games or benchmarks.
this is true. furmark pushes the GPU much further than games will ever reach. this is why you should only need to run it for 10 mins max. if you see no artifacts or freezes, your card is doing well. you should also run some games because some OCs will appear stable in stress testing but might fail at normal usage (30-70%). so after you run furmark or another GPU stress test, play a graphics intensive game for ~30mins. if you have no issues, your OC is probably stable. just keep an eye out for lock ups, freezes or artifacts when youre playing because only time will tell you if your GPU is stable at your OC settings
Edited by IntelConvert - 1/14/11 at 12:34am
    
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post #17 of 36
Thread Starter 
Quote:
Originally Posted by IntelConvert View Post
OCing can use a significant amount of power. it can increase the wattage use of your GPU by 20-40w at 100% usage. and yes, my old coolermaster PSU would overheat and shut down if i tried running a stress test after OCing my GPU, but i could play crysis warhead and run stress tests at stock clocks without issues.



this is true. furmark pushes the GPU much further than games will ever reach. this is why you should only need to run it for 10 mins max. if you see no artifacts or freezes, your card is doing well. you should also run some games because some OCs will appear stable in stress testing but might fail at normal usage (30-70%). so after you run furmark or another GPU stress test, play a graphics intensive game for ~30mins. if you have no issues, your OC is probably stable. just keep an eye out for lock ups, freezes or artifacts when youre playing because only time will tell you if your GPU is stable at your OC settings
How many W is your PSU? Mine is just 380 and it is a cheap one
post #18 of 36
the coolermaster i had was a 500w unit, but it was cheap and probably only put out ~300w.

i wouldnt trust your PSU man.... its probably running balls to the wall to just play games at stock speeds. if you start OCing and doing stress tests, you will likely blow your PSU and you could lose your motherboard, CPU, ram, video card or any other component. cheap PSUs often dont have protection from failures and even some that do, dont work properly.

(the PSU i have now is way overkill, i just got a sick price on it, so i had to upgrade anyway. i plan on using it for atleast 1 or 2 years after i upgrade to an i5/i7 rig. an OC'd 5770 and OC'd CPU can run perfectly well on a quality 500w unit)
Edited by IntelConvert - 1/14/11 at 12:44am
    
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post #19 of 36
Thread Starter 
Quote:
Originally Posted by IntelConvert View Post
the coolermaster i had was a 500w unit, but it was cheap and probably only put out ~300w.

i wouldnt trust your PSU man.... its probably running balls to the wall to just play games at stock speeds. if you start OCing and doing stress tests, you will likely blow your PSU and you could lose your motherboard, CPU, ram, video card or any other component. cheap PSUs often dont have protection from failures and even some that do, dont work properly.

(the PSU i have now is way overkill, i just got a sick price on it, so i had to upgrade anyway. i plan on using it for atleast 1 or 2 years after i upgrade to an i5/i7 rig. an OC'd 5770 and OC'd CPU can run perfectly well on a quality 500w unit)
Is that once PSU is dead while system is running can kill everything? The one I am using is "GTR", is local brand famous for easily die!
post #20 of 36
if the PSU blows while youre running a stress test (very possible since the stress tests are much more intensive than any other application or game) you run the risk of killing other parts of your computer. this happened to me on a computer i used to have. the PSU blew, and it killed my motherboard. that computer was a nightmare trying to get it to run again
    
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