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Forcing 15KHz on boot?
DillonFoulds:
Hey guys, i'm working on my cab now, just swapped out the motherboard for something with a bit more uuumphff in it...
Anyways. The new videocard is an nVidia 6100. I'm running it vga out to an arcade monitor RGB in. Everything's wired fine, worked great on old computer.
I Put in the new computer, set it all up, and got Soft-15KHz running fine. I get perfect picture on my monitor, no problem setting that up...
Now here's the kicker. Every time I reboot my PC, it goes to 640x480, but NOT 15KHz! :angry:
If I hook it up to an LCD panel, and change the resolution back to a 15KHz complaint output, everything's fine again, until I reboot!
What gives?!
Thenasty:
chea[pest way is to sticka PCI video card in the machine, have that as primary video out.
Don't connect any monitor to this card during boot. When WIN kicks in, the second card will take over and hits yo with your 15khz signal.
If want the expensive way, get an ArcadeVGA card from Andy (Ultimarc)
SirPeale:
--- Quote from: Thenasty on November 02, 2009, 08:40:54 am ---chea[pest way is to sticka PCI video card in the machine, have that as primary video out.
Don't connect any monitor to this card during boot. When WIN kicks in, the second card will take over and hits yo with your 15khz signal.
If want the expensive way, get an ArcadeVGA card from Andy (Ultimarc)
--- End quote ---
But that doesn't explain why the changes revert after reboot. I've got a PC I've been experimenting on with Soft15, and it comes up to 15KHz every time.
What's the OS like? Anything special installed?
DillonFoulds:
Nope, actually bare minimum is installed. This machine is running mala on windows boots, and that's it.
Thenasty, this card shows soft15KHz signals perfect, it can switch to them any time at will no problem. What's going on is that it ALWAYS reverts back to a non 15KHz resolution.
On the old video card everything worked perfect, and it would always boot into 640x480@16bit 15KHz. This motherboard always boots in to 640x480@32bit non 15KHz compatible. I'm wondering if the nVidia software is causing some conflicts. When I get home tonight, I'll uninstall the nVidia suite, and try a different driver set maybe.
Also, if i boot the PC, (get to the non 15KHz desktop) hook the LCD panel up, go to Desktop Properties, Settings, move the slider to 800x600, then revert to 640x480, hit apply, it fixes it. It's almost like it assumes it's on the right setting already, but for some reason it won't boot in that mode...
Any other suggestions I can try?
Dexter:
Just a thought, have you tried powerstrip? Its helped me before with numerous video clock problems.
http://www.entechtaiwan.com/util/ps.shtm