HD5830 AMD OverDrive clock settings unstable?? (Help w/ overclocking)

Ok, so it has kinda come to the point where I need a bit of a performance boost. I didn't want to mess around with hardware-level overclocking, but rather driver-level instead, simply because I would be less likely to be stupid and burn my card up...

So I went in through the Vision Engine Control Panel and started with a small bump-up of an extra 25MHz (825MHz) on the GPU and an extra 50MHz on the RAM (1050MHz). I run the test and there is no screen jitter or artifacting during the duration of the test, which the test then says that it passed and keeps the clocks...

This is where things get frustrating... As soon as I apply the settings and run a low graphics app (the web browser is what i tried in this case), and at the power saving clocks of GPU: 157MHZ RAM: 300MHz, I already experience jitter.... If it isnt even at 1/3 of its max power on stock clocks, why does it start becoming unstable when it hasnt even exceeded the max stock clocks??

I have tried the same overclock in AfterBurner and experience the same thing (voltage control is locked out, however...)

If anyone can shed some light on this issue, I would really greatly appreciate it!!

I've seen some things on the net that show some people have been able to get it to 900MHz GPU and 1200MHz RAM and it is stable. Most of these people did not mention anything about overvolting it to do so...

**Note: It cannot be a temp problem because even at 900MHz GPU, the burn in (at 99% usage), doesn't yield anything over 73C.(at 27% fan speed)
Edited by raidmaxGuy - 5/22/12 at 1:59pm