GPU issue, EFI card.

[RainbowDashDC]

So, I have a ATI Radeon X1900 XT from a Mac Pro. From what I've read, it uses EFI? I've tried too boot it off my Dell Dimension 8400 on it's PCI-E 1.0 slot. It gives no failure LEDs and sounds like it does normally, I'm using a DVI-D to VGA convertor, but no display on the monitor. I tried it in another system and that worked fine, but that was with DVI-D too DVI-D, could that be the issue, or will this card just not work?

 

[nukemaster]

If the other system was newer it may have been able to boot uEFI cards.

I know on uEFI boards you need to enable legacy mode for older cards.

I would guess if you can get ahold of a suitable bios image you could flash it to legacy mode and it should work with more systems.

 

[RainbowDashDC]

If the other system was newer it may have been able to boot uEFI cards.

I know on uEFI boards you need to enable legacy mode for older cards.

I would guess if you can get ahold of a suitable bios image you could flash it to legacy mode and it should work with more systems.

It was UEFI for sure.

"you could flash it to legacy mode" You wouldn't happen too know of a way too obtain such an image, would you?

 

[nukemaster]

Techpowerup has a GPU bios database.

You have to be 100% sure this bios is a match for clock speeds as well.

http://www.techpowerup.com/vgabios/880/ati-x1900xt-512-051221.html

If these do not match, I can see if I can dig up my old X1900XT and copy the bios.

I know lots of people did the reverse to make x1900 xt's for pc work on MACs.

 

[RainbowDashDC]

Techpowerup has a GPU bios database.

You have to be 100% sure this bios is a match for clock speeds as well.

http://www.techpowerup.com/vgabios/880/ati-x1900xt-512-051221.html

If these do not match, I can see if I can dig up my old X1900XT and copy the bios.

I know lots of people did the reverse to make x1900 xt's for pc work on MACs.

I'll get the clocks tomorrow, when I can use the other machine. For now, I am almost positive those are not the clocks.