Overclocking everything need help.

[pwnknight]

Hi i would like some tips on what would be the best overclocking settings for my GRAPHICS card radeon sapphire HD 7870 and for my CPU AMD FX(TM)-9370 EIGHT-CORE PROCESSOR my MOTHERBOARD: SABERTOOTH 990FX R2.0 i want to overclock for hard core gaming so if anyone can help meand tell me how to overclock everything step by step. with catalyst interface and mother board interface ty

 

[ihog]

I would use Sapphire Trixx to OC your GPU. Use these steps:

1. Raise the core clock incrementally and do a GPU stress test to test stability.
2. Once you get to a point where the clock is unstable, raise the voltage until it is stable.
3. Repeat step 1.
4. Repeat step 2.
5. Do this until you either can't raise the clock and voltage to get to a stable clock.
6. Raise the memory clock incrementally and do a GPU stress test to test stability.
7. Once you get instability, lower the memory clock until stable.

Someone else can help you with OCing your CPU since I'm not well-versed in the art of AMD CPU OCing.

 

[pwnknight]

I would use Sapphire Trixx to OC your GPU. Use these steps:

1. Raise the core clock incrementally and do a GPU stress test to test stability.
2. Once you get to a point where the clock is unstable, raise the voltage until it is stable.
3. Repeat step 1.
4. Repeat step 2.
5. Do this until you either can't raise the clock and voltage to get to a stable clock.
6. Raise the memory clock incrementally and do a GPU stress test to test stability.
7. Once you get instability, lower the memory clock until stable.


Someone else can help you with OCing your CPU since I'm not well-versed in the art of AMD CPU OCing.

What is a good program to do a GPU test ? and how would i know if it became unstable ?.

 

[ihog]

There are plenty of GPU stress tests, and I personally use more than one. There's Unigine Valley, Unigine Heaven, MSI Kombustor, and 3DMark11 (the free version makes you do 3 tests (one for low-end systems, mid, and high) but you want to use the high-end test though you can only do that separately if you buy the retail version).

Some things that indicate instability:
-graphics card drivers crash (restart the system if they do)
-monitor goes blank (restart, obviously)
-there are glitches/artifacts on screen (run the stress test before you start and make sure you watch to see what's normal; always watch the stress test to check for these errors)

Here are some examples of artifacts:
http://i.imgur.com/Gu1x8.jpg
http://i740.photobucket.com/albums/xx48/darkhour_photos/Elemental_1276819590.jpg?t=1276825829
http://www.playtool.com/pages/artifacts/badgpu.jpg

Also, make sure you monitor your temps.

 

[pwnknight]

There are plenty of GPU stress tests, and I personally use more than one. There's Unigine Valley, Unigine Heaven, MSI Kombustor, and 3DMark11 (the free version makes you do 3 tests (one for low-end systems, mid, and high) but you want to use the high-end test though you can only do that separately if you buy the retail version).

Some things that indicate instability:
-graphics card drivers crash (restart the system if they do)
-monitor goes blank (restart, obviously)
-there are glitches/artifacts on screen (run the stress test before you start and make sure you watch to see what's normal; always watch the stress test to check for these errors)

Here are some examples of artifacts:
http://i.imgur.com/Gu1x8.jpg
http://i740.photobucket.com/albums/xx48/darkhour_photos/Elemental_1276819590.jpg?t=1276825829
http://www.playtool.com/pages/artifacts/badgpu.jpg

Also, make sure you monitor your temps.

what's a good normal temp for that graphics card ? and while gaming.

 

[ihog]

I personally keep it under 85C.