Overclocking sapphire 7950 vapor x

[K1ash3r]

Hi,

How do I go about overclocking this card http://www.overclockers.co.uk/showproduct.php?prodid=GX-304-SP&groupid=701&catid=56&subcat=1673


1.What software do I use
2.What settings do I change
3.I heard that this card has its voltage locked
4. Also I know that this card has a dual bios switch, Im not sure what that is or what that does.

Thanks in advance.

 

[steddora]

I believe Sapphire provides an application for their cards, I suggest using it.

Get the application, check out the settings and start googling them so you KNOW what they do before you actually mess with the settings. But for most overclocking you'll be working with actual GPU frequency and Memory/Shader frequencies. I have heard that some of those models were locked voltage and some weren't, not absolutely sure if they are all or just some or if there's just some way you have to control the voltage (like with a certain application). From what I read on that card, you can actually run two different bios's on the chip. This could be the way to unlock the voltage if it is indeed locked. Bios's can have major effects on how the card operates. So having "two" to select from is probably like being able to have a performance mode and a normal mode.

 

[K1ash3r]

I cant seem to get a stable 1100mhz oc, I tried with 1.15v , PC keeps crashing when I play games. What voltage should I use

 

[steddora]

That I couldn't tell you my friend as I've never used the 7950. Do some research on google and find out what voltages are safe to use on that card. Just remember that some cards won't do as good as others. It's a luck of the GPU draw.

 

[K1ash3r]

This is weird, I'm using Trixx to overclock my card but when I adjust the voltage, GPUZ does not show any change in voltage.