Disable on-board video in Dell M166a (yes, from 1991)

[Pete]

Hi everyone --

I'm trying to upgrade a friend's 8-bit video and bought an ATI Rage Pro
8MB PCI card. That thing of course won't install because the
system-board M166a video controller is not disabled. Therefore I gotta'
disable the thing. But the tech manuals are silent on the subject; and
there's nothing in the BIOS screen that lets me deal with it.

Yes, the machine definitely is a Dell M166a, 166MHz.

Can anyone point me to a source that will tell me?

Thanks so much!

 

[Shinnokxz]

Are you sure it can even handle ANY kind of video card besides that?

If there's now where in the BIOS, then your last bet would be to check
the motherboard for a jumper.

 

[Pete]

Thanks! Yes, there is a whole block of maybe 15 jumpers, all for the
display, but there is zero documentation as to what those jumpers mean.


I think I could just change one of those jumpers, as you say. Does
anyone know what each of those jumpers means? Thx!

-- Pete

 

[Shinnokxz]

Have you attempted a look up on Google with the Motherboard model? It
should be listed in the mobo somewhere.

 

[Shinnokxz]

Did some snooping, and found that it uses the Intel 430VX PCIset chipset.

 

[ELVIS2000]

Hi everyone --

I'm trying to upgrade a friend's 8-bit video and bought an ATI Rage Pro
8MB PCI card. That thing of course won't install because the
system-board M166a video controller is not disabled. Therefore I gotta'
disable the thing. But the tech manuals are silent on the subject; and
there's nothing in the BIOS screen that lets me deal with it.

Yes, the machine definitely is a Dell M166a, 166MHz.

Can anyone point me to a source that will tell me?

Thanks so much!

166mhz in '91? And to think i was stuck at 16mhz...