2 Ati cards - non Crossfire

[fergie128]

Plugged in a 4870X2 into the blue 2.0 x16 slot on a P5Q Pro and then an X850XT into the black slot also. Fired up system with the expectation that the X850 could simply be used as a device which sends output to 2 more screens. However, the system didnt even pick up the card, not in device manager or in catalyst.

Maybe my advice has been wrong, but I was told that this could be done in this way. Basically I only need the 2nd card to output a signal to 2 more screens. But bow I am thinking that because the X2 is effectively Crossfire'd already, then the 2nd card wont work.

Any suggestions ?

 

[Wayne~]

As far as I was aware it still counts as crossfire and if the board doesn't support it then it won't work

 

[FrenchTart]

As far as I was aware it still counts as crossfire and if the board doesn't support it then it won't work

Eh? I'm pretty sure that's wrong.

 

[LoadsaMoney]

The motherboard doesn't have to be Crossfire, as the 4870 x2 has Crossfire onboard (its built in between the 2x GPUs), so will work in any board.

 

[TheCenturion]

you could try it in another pcie slot?

 

[Ben M]

Fired up system with the expectation that the X850 could simply be used as a device which sends output to 2 more screens. However, the system didnt even pick up the card, not in device manager or in catalyst.

You should be able to do this. Being as the card isn't even being seen, are you sure that the card, and the pci slot work?

 

[madman045]

i would take the 4870x2 out and see if the 850 is detected on its own 1st, if not, try another slot until it does work.

also which operating system are you using, XP or Vista?

 

[fergie128]

Ill try the X850 on its own later this evening.

And using Vista x64.

 

[OrphanBoy]

My 3870 works fine with my X800, however the fan is at full speed until Windows loads the driver for the second card once I reach the desktop. Can you hear the fan for your second card? If you can't this would be a sign that there's no power going to the card...

What PCIe lane config do you have? Mine works fine in the 16/4 (I think) config...

 

[D D Danneh]

Try each card on their own and try swapping them around, that will help you identify if it's a problem with the cards or with your PCI-E slot.

 

[Ghost-Reaper]

Ok this doesn't won't solve the not being detected in the display manager but as far as software goes are both the cards supported by the drivers?

 

[Mav]

forgive me if iam wrong here but ..

X850XT isn`t that a AGP card not a PCI-E ?

an i though AGP/PCI cards wouldn`t work in PCI-E slots ?

 

[Ben M]

forgive me if iam wrong here but ..

X850XT isn`t that a AGP card not a PCI-E ?

an i though AGP/PCI cards wouldn`t work in PCI-E slots ?

If it was AGP I don't think that he would have been able to get it to fit

 

[reflux]

I recall something about the newer ATi drivers not supporting older cards.

 

[Mav]

I recall something about the newer ATi drivers not supporting older cards.

think they suppot X700 cards an above now ?

From AMD/ATI site

AMD Product Support
The Catalyst™ Vista driver for both the 32bit and 64bit versions of the Microsoft
Windows Vista operating system is supported on the following ATI Radeon™ products.
AMD Desktop Product Family Support
AMD Desktop Product Family Support
ATI Radeon™ HD 4350 Series ATI Radeon™ HD 4850 X2 Series
ATI Radeon™ HD 4670 Series ATI Radeon™ HD 4870 X2 Series
ATI Radeon™ HD 4650 Series ATI Radeon™ HD4600 Series
ATI Radeon™ HD 4550 Series ATI Radeon™ X1300 Series
ATI Radeon™ HD 4800 Series ATI Radeon™ X1050 Series
ATI Radeon™ HD 3800 Series ATI Radeon™ X850 Series
ATI Radeon™ HD 3600 Series ATI Radeon™ X800 Series
ATI Radeon™ HD 3400 Series ATI Radeon™ X700 Series

 

[LoadsaMoney]

Just a thought, but have you also connected a 4x Pin molex to the board, as some boards require one to supply extra power to the slots when your either doing Xfire, or seperate cards in both slots.

I recall something about the newer ATi drivers not supporting older cards.

That starts from the 9.4's, they will only support 2000 series and up, with older cards only getting supported quarterly (i think) from now on.

 

[ripped]

Have you got a Monitor connected to the X850XT, because their needs to be a monitor connected to pick it up?