X800 Pro oc problems with Atitool..

[pcw]

Just got my Sapphire X800 Pro today..

I've uninstalled my old cat 4.6's.. cleaned them off with driver cleaner afterwards and then did a new install of the 4.6's...

The thing is that when I try to oc the core with atitool 2.0 (the latest) the monitor just goes blank when reaching around 550 mhz on the core.. and I have to restart the computer.. this has NEVER happened when I tried to oc my 9800 PRO.. it never went blank on me or froze up... I would only notice artifacts when I oc'ed it too high...

So what could be causing this? Also vpu recover in controlpanel should be ticked off right?

Any help, comments, similair experiences would be nice if you wrote it down here... :)

Peace

[bobmanfoo]

Just got my Sapphire X800 Pro today..

I've uninstalled my old cat 4.6's.. cleaned them off with driver cleaner afterwards and then did a new install of the 4.6's...

The thing is that when I try to oc the core with atitool 2.0 (the latest) the monitor just goes blank when reaching around 550 mhz on the core.. and I have to restart the computer.. this has NEVER happened when I tried to oc my 9800 PRO.. it never went blank on me or froze up... I would only notice artifacts when I oc'ed it too high...

So what could be causing this? Also vpu recover in controlpanel should be ticked off right?

Any help, comments, similair experiences would be nice if you wrote it down here... :)

Peace

try disabling Fast Writes in bios and display options
;)

[pcw]

try disabling Fast Writes in bios and display options
;)


Okay I've always had fast writes enabled when oc'ing with my 9800 Pro and haven't had any problems.. but I'll give it a try :)

[michaelkahl]

I disabled it and got my core to go from 526 up to 550 stable, but i run it at 540 just to be safe...and i have the ram up from 526 up to 580!!!