Vertical refresh

[bosss7]

Is there any way to knock the vertical refresh rate down to 15khz on the G400/G450/G550 cards. The lowest I could manage in 640x480 is 21khz (g550). I need this resolution so I can hook the computer to an RGB fixed scan-rate monitor which unfortunately only runs at 15khz.

If there are any reg fixes or utils that could do this, please reply

bosss7

[bosss7]

Whoops. I meant HORIZONTAL refresh, not vertical.

bosss7

[feikRAM]

Use Powerstrip, it worked for me with my G400. Didn't work on bashee and gf3 though

[omegaRED]

I dont think you can knock it down to 15khz. I`m not sure, but i dont think so.

BTW, most fixedd-freq monitors are dual scan i.e. they work on 2 horiz scan rates. My IBM 6091 23" works on 33 and 63 KHz, so you might want to try and find if your monitor has a second scan rate and find it.

[Maggi]

how about setting up a custom resolution (720x576/720x486) and using 50/60Hz interlaced mode ?

should be the closest base to PAL/NTSC which both use ~15kHz (afair) ...

[stefanoroma]

changing resolution ?

How can you get custom resolution with Pharelia ?
I tried to use the MTS tweak utility but it really does not seem to work. I also tried with powerdesk and got some limited result (i.e finally was able to get 720x576 setting the two monitors as independent and then swithing back to the dual-head clone configuration that i neede to use) but got no access to the custom resolution panel.

[OasisPlaces]

Are you trying to run mame on a cabinet monitor???
If so there's a Dos TSR that forces the vesa, and Vga modes
to NTSC frequencies..

[stefanoroma]

oh,oh
things are getting too complicated for me.
What's MAME
I do I run a "DOS TSR"?