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OCing HD4850 HELP please

post #1 of 18
Thread Starter 
Hey guys. I am OCing a computer for a client of mine. So bare in mind that this is not my machine.
He has a stock HD4850 with 512mb GDDR3.
Stock core clock is 625
Stock Mem clock is 993
Temps at stock are
Idle- high 40s C
Load- 93C after 1 hour of stress tests.

I pushed his core clock slowly to 700. 700 being the max CCC will allow also. I also changed his fan to manual and set it at 100% steady. The system appears stable from what I'v tested. But I am worried about the temps.
The max temp it is supposed to take is 105C.
temps at 700 core clock:
Idle - 41C
Load - 94C after 1.5 hours stress test.

Seems fairly warm considering I changed the fan to 100% =/ and I didn't move any voltages.

I used FurMark 1.9.0 and OCCT.
During the last test using OCCT with error checking on, I hit 94C but at the 30 min mark (it had been already running for awhile before) the test stopped because the CPU hit 60C from the case temps rising. Room temp is about 22C. The max temp for his CPU is 71C. Should I worry if his CPU is hitting 60C after long load times with OCCT:GPU test?

Any suggestions on these temps or what I could try? Thanks
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post #2 of 18
better cooling and hows the air flow in the case ?
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post #3 of 18
Thread Starter 
Quote:
Originally Posted by DOM. View Post
better cooling and hows the air flow in the case ?
air flow is not great. it's a mid tower case with 1x120mm fan in back and the psu fan. The graphics card also is NOT one of the fancy ones that exhaust the hot air out of case.
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post #4 of 18
Those cards run hot. You better have a good air flowing case. They ran hot in my old Chieftec case, so I had to remove the side panel. They ran a lot cooler in my HAF 932 for sure. They don't rear exhaust, they exhaust inside the case.
     
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post #5 of 18
try adding a intake fan if you can and pci fan
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post #6 of 18
if you can get a fan blowing on the card, it will help with the high temps.

If there is no side intake, you could consider cutting one in and mounting a 120mm fan that blows fresh air directly over the card, or something like this could work also ---> http://www.newegg.com/Product/Produc...82E16835209017
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post #7 of 18
Quote:
Originally Posted by CrazyDiamond View Post
air flow is not great. it's a mid tower case with 1x120mm fan in back and the psu fan. The graphics card also is NOT one of the fancy ones that exhaust the hot air out of case.
Remove the side panel and see hot much cooler they run. If it drop considerably, consider trying to modify the side panel with a fan.
     
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post #8 of 18
Thread Starter 
Quote:
Originally Posted by ezveedub View Post
Remove the side panel and see hot much cooler they run. If it drop considerably, consider trying to modify the side panel with a fan.
Under most situations I would. But this, as I said, is not my system. And I doubt my client would like me cutting into his case. And even if he didn't mind, I'm unable to communicate with him for another week seeing as he left today on vacation. =/
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post #9 of 18
Thread Starter 
So, should I be worried about the CPU temp hitting 60C from the tests? The CPU idles warm at 42C and during the OCCT:GPU test the cpu hit 60C and the test stopped because I had it set to stop at that. Never expected the CPU to get that hot while running a GPU test =/ Max Operating temp on the CPU is 71C.
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post #10 of 18
can you post a pic ?

and most of these stress apps are not temps your going to get on reg usage

why not do some gaming... stuff he uses it for and see what temps u get
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