From: Scott Birdwell <[EMAIL PROTECTED]>
Date: Sat, 19 Nov 2005 16:25:29 -0600
Hey, SuperMac-ers!
Can any you think of any reason why a Twin Turbo card wouldn't work
in a C-500? I can physically install it and hook up the monitor, and
it semi-works, but my desktop seems to be off the screen. Does this
sound crazy? I've been brainstorming with Jeff Walther and his theory
is that the computer "thinks" the on-board video card has a monitor
hooked up to it (it doesn't) and the Twin Turbo is the "enlarged
desktop." This makes sense to me, but neither of us know how to reset
the computer into thinking that the new video card is the main video.
Cuda switch? PRAM? Thanking you in advance.
Scott Birdwell
Wow a C500 ? been a long time. No, I see no reason why a twin turbo
wouldn't work in a C500. I don't remember if I ever used my twinTurbo
in the C500 or not. I did run it with an ATI Rage pro 8 MB card (still
in the machine I think) and it ran really well. I do seem to remember
the screen picture being too big for the screen issue at some point. Is
that the issue you are having? The desktop is so big your only seeing
the middle or part of it? Macs have auto detect for the monitor . Some
video cards and Monitor combinations end up somehow giving the wrong
info so you end up with the wrong resolution for the monitor. Have you
tried selecting a different resolution size like I seem to remember
800x600 maybe working best with the C500 machine? Mac OS 9 also hides
some of the resolution sizes in the monitor control panel. As in
Recommended and all sizes can be picked but with some video cards all
sizes may set a refresh rate too high for you monitor. If you don't
know your monitors refresh rate usually 60-65 is safe with most any of
them for testing. There are many versions of the Twin turbo card and
also Apple and retail versions of the card. The Apple cards came with
the older Apple monitor plug only and the retail cards have both Apple
& vga plug outs. The Apple cards run with the Mac OS video drivers and
the retail cards will run but really need the Twin turbo control panel
to set the resolution correctly. So that could be an issue as well.
Twin turbo control panel is available at the OWC web site if needed
let me know. Hope this helps. I also seem to remember that the Sony vga
monitor someone gave me would only show the desktop correctly hooked to
the Mac plug on the video card with a mac to vga convertor plug. It
wouldn't work right hooked to the vga plug on the video card. best of
luck Will S
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