video mode not supported on boot..

[jfall]

I have this odd problem with my new computer, every morning I come into work and turn it on right before the starting windows screen appears (after the bios screen) a message pops up saying "video mode not supported" then I see a screen with colored bars (much like when a tv channel is off the air). If I reboot it, everything works fine. As far as I know it only happens on a cold start, but it may be something random.

I have an Epox 9npa+ motherboard with an ATI radeon x800xl video card attached to a Hyundai L90D LCD monitor via DVI

Anyone have any ideas?

 

[jfall]

anyone?

 

[Mogadon]

Is there a "PCI / PCIe primary video adapter" setting, or something similar in the BIOS?

Maybe check that out, i've only played with AGP mobos and they usually have a setting to determine whether you video card is AGP or PCI, so it's just a guess.

 

[Jiggz]

Does it do it if you use the VGA connection? Let us know.

 

[unmerited]

It it's a cold boot the monitor may not be getting a signal in time to determine the video dimensions.


unmerited

 

[JimPhelpsMI]

Hi, I had an almost identical situation a few days ago. Turned out to be a mem problem. Haven't sorted it out yet, but Memtst showed it up real quick, but only when starting from dead cold. No OCing. Try Memtst86 or better. Good Luck, Jim

 

[thegorx]

power supply ?

 

[CrispyFried]

next time that happens, try cycling the power to the monitor. if the image appears its possible the monitor is being detected wrong.

 

[Childs]

That used to happen on a Hyundai L70S I had. I would have to shut the computer down, turn off the LCD, turn it on, then turn on the PC. Would usually only happen when I use the LCD with a different PC. Then after that it would be fine.