can't boot with ati card in computer?
mac pro 1,1 with nVidia 7300 GT
OS X 10.6.2
installing sapphire 4870 1GB
(this card:
http://www.newegg.com/Product/Produ...2849&cm_re=radeon_4870-_-14-102-849-_-Product)
More or less, I tried to replicate exactly what the OP did on his personal computer. For power, I ran it from the extra connector in the DVD drive bay. The only difference was that I generated the needed molex cable using some wire cutters on an old PC I have. I ended up with these two pieces of cable:
wire ends (red, black, black, yellow) -> female molex
wire ends -> male molex -> male molex
Then I spliced together the two cables above using some wire twist cap thingies....ending up with female -> splice -> male -> male. Then I added the two cables that came in the sapphire box to get me all the way to the graphics card.
When I place the card in the mac pro...it does not boot. I get the "you need to restart your computer. press and hold the power button...blah, blah" screen when booting. If I disconnect the molex power...it sounds like the fan cranks up to a very high rate of speed, but other than that nothing happens (I can boot). Not that this does me any good.
I tried the radeon card in slot 1 and nvidia in slot 2. I think I also tried nvidia in slot 1 and radeon in slot 2. Same results.
Should I:
- buy the ATI cables to go from the motherboard and bail on the molex idea?
- bum some time on a friend's PC to see if the sapphire card works in the PC?
- other ideas?
Appreciate the help in advance -
blindmelon