I want to OC my byo video card

[gerry410]

Hello friends at Toms, I’m trying to OC my video card a Powercolor Radeon 5850.

Method 1: I increase the clock cycles in increments of 5 to 10 in CCC and I run Furmark after each edit then test with the heaven benchmark. When I reach a point where it fails, I reset the clock back 5 to 10 and that should be my sweet spot. Right?

Method 2: Let the “Catalyst Control Center” auto tune the card. I did this first thinking I could get near the best OC for the card then tweek it some.

The default settings are clock 760/ mem 1050.
the "Auto tune" in CCC ramps it up to 865/1215 but the card freezes.

I’ve managed to manually get up to 805/1050 and it runs stable at 810/1050 it crashes.
Why does the auto tune set the clock cycles so fast that it crashes.
This is the first computer I built myself and I'm kinda new to this stuff.
Thanks for your time.


AsRock x58-xtreme mobo
Intel Core i7 930 Mhz
CORSAIR DOMINATOR 6GB (3x2GB) 240-Pin SDRAM DDR3 1600 (PC3 12800) CMP6GX3M3A1600C8
CM 690 case
CM 750 watt ps
CM Hyper N520
PowerColor Radeon 5850 gpu
Asus CD ROM
M-audio Studiophile AV 40 speakers

 

[WR2]

Hello gerry410;

Here are some notes and tools on HD 5850 overclocking.
http://tech.icrontic.com/articles/overclocking-the-radeon-hd-5850

 

[gerry410]

Thanks, I've been looking for some documentation for the AMD Clock Tool.
Could you add any ideas why the auto tune feature native to the ccc oc's it to much? I'm trying to understand this.

 

[gerry410]

Best answer selected by gerry410.