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New to overclocking, need help/advice please

post #1 of 4
Thread Starter 
Hi,

Overclocking newbie here, hope you can help.

I have a Radeon 7800 series GPU on my PC at the moment and I'm attempting to squeeze a bit more juice out of it smile.gif
I'm using Afterburner to adjust the clock settings and I'm benchmarking with Heaven.

I have adjusted the core clock from it's default setting of 1000 to 1150 using small increments of 10 and benchmarked each change. There has been a very small change in performance ranging from 33FPS to 35FPS. Thing is, if I raise the core clock to 1160 the FPS drops and the score that Afterburner gives that particular benchmark is lower than the one I achieved with the core clock being set to 1150, why is this?

If anyone has any tips, help or advice here I would be very appreciative.

Cheers.
post #2 of 4
Maybe with the increase in core clock and no increase in memory frequency, you are introducing a bottleneck inside the graphics card that is causing performance to drop. Or maybe the card doesn't like the particular voltage you are using at the moment.

Certain things need to be in balance for a successful overclock.
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Ol'Faithful
(11 items)
 
  
CPUMotherboardGraphicsRAM
Intel Xeon x5660 P6X58D-E XFX AMD Radeon R9 280X Corsair Vengeance 24 GB Triple Chanel 6x4GB 
Optical DriveCoolingOSMonitor
Lite-On DVD-RW Noctua DH-14 CPU Cooler Windows 7 Pro x64 Samsung 24" LED 1080p 5ms DVI (S23A300B) 
PowerMouseAudio
Thermaltake Toughpower 750W Gold Corsair M95 Onboard :S 
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post #3 of 4
Also, up your power level %. You may see some better improvement there.
post #4 of 4
Thread Starter 
Hi,

Thanks for your replies.

I have read all kinds of horror stories about people who increase their power and the GPU goes on fire! What is the best/safest way to go about this?

Cheers.
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