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Z70V - CHC causes crashing on resume from standby/hibernate

post #1 of 4
8/25/05 at 6:40pm
Thread Starter 
On my Z70V, if I have Centrino Hardware Control running and I go into standby/hibernate, my computer would crash on resume.

What happens is that I will see my desktop just fine for a second or two and I can move the mouse cursor normally. But immediately after, there is intense video corruption. I don't know how to describe it, but let's just say that it looks like as if the LCD is trying to throw up on your face.

Sometimes I can see movements corresponding to movements of my mouse cursor, sometimes it freezes completely, and sometimes Windows goes into a Blue Screen of Death (though I can't make out what the error is due to graphic corruption). But every time, I have to do a hard shutdown by holding down the power button.

I am running Windows XP Professional (completely fresh install) with CHC 1.8. I have tried many video drivers as well, including the one included on the CD, the newest one on the Asus website, the latest ATI reference Catalyst, and the latest Omega Catalyst. All have the same results.

I only don't crash when CHC is OFF before I go into standby/hibernate. I have also tried disabling the video downclocking settings in CHC, to no avail.

I really would like to continue using CHC, so does anybody have similar experiences or suggestions?

Thanks.
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post #2 of 4
8/25/05 at 6:46pm
Are you undervolting? Resuming after standby/hibernate could cause a fluctuation in voltage enough to make your computer unstable like that. If you are undervolting, add a .100V margin of error (voltage will regularly fluctuate about .70V so you want a little more) and see if that fixes it. I know it's a stretch, but otherwise I got nothin'.
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post #3 of 4
8/26/05 at 10:50am
Thread Starter 
Hmm, thanks for the suggestion; for some reason, I didn't even think about that. I was indeed undervolting, but unfortunately, setting it back to stock voltage was still the same.

However I think I'm going to switch to RMClock instead of CHC now. I still think CHC is nicer, but RMClock generally gives me about the same flexibility. I'm undervolting with RMClock and not crashing from resume.
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post #4 of 4
8/30/05 at 3:19am
Thread Starter 
Update: I have tried CHC again for the heck of it. With undervolted settings, my notebook has been rock stable for the past three days of frequent standby/resume cycles. So... I don't know why everything works properly all of a sudden because I haven't changed anything, but I'm happy about it!
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