GA-X48-DQ6 Crossfire Problem

[Jetpack]

Hi,

Please help. I've just put together the following system:

850W Akasa AK-P085FG-BKUK PowerMax
Akasa 850watt PSU
Gigabyte GA-X48-DQ6
Microsoft Windows Vista Home Premium 64bit
2 X 320 GB Hitachi HD
2 X 512MB HiS HD3870 Iceq3 Turbo FullHD
Intel Core 2 Quad Q9450
4 x 2gb mushkin pc8000 ram

I have installed the latest windows updates. Have the latest bios version. Using catalyst 8.4.

Cannot get device manager to display 2 cards at present so I can enable crossfire.

I have tried each card singuarly in different PCIE_16 slots and the cards and slots work fine.

1. I then place a card in PCIE_16_1 and connect the monitor cable to his card, install drivers, reboot and that card is displayed within device manager.
2. I shutdown and place a card in PCIE_16_2 boot and vista automatically installs the drivers for that card. But I have to change the monitor cable to the card in PCIE_16_2 to get a picture, and the card that is in PCIE_16_1 disappears from device manager.

I can not get 2 cards to display within device manager. I've tried many combinations but only the card in PCIE_16_2 appears in device manager when 2 cards are installed.

Ahh..... I've been at this for over a week visting many forums please help.

[PrairieDawg]

Re: GA-X48-DQ6 Crossfire Problem

Silly question, but are you using the "bridge" to connect the two cards at the top?

[GIGABYTE - Janus Yeh]

Re: GA-X48-DQ6 Crossfire Problem

looks like you want to run CROSSFIRE

DO YOU connect the two cards with bridge.

and install ATI Catalyst Control Center?

[Jetpack]

Re: GA-X48-DQ6 Crossfire Problem

Hi,

Thanks for the quick reply, first forum out of 5 to reply. (Nothing from the ATI guys/girls as yet).

Yep I've tried with the bridges in place. it just seems to loose the card placed in PCIE_16 slot 1. No matter how I install the cards, one by one, both together. But PCIE_16 slot 1 works fine if either card is installed there on its own. I've noticed something in System information within Vista 64 under IRQ's I have the following setting 'IRQ 4294967294 ATI Radeon HD 3800 Series OK' no other setting for a Radeon card, VGA card or Unknown device is present.

IRQ 4294967294 surely thats not right?

and the following PCIE_16 slots share resources as shown below could this cause a problem?

IRQ 17 High Definition Audio Controller OK
IRQ 17 Intel(R) ICH9 Family PCI Express Root Port 6 - 294A OK
IRQ 17 Realtek RTL8168C/8111C Family PCI-E Gigabit Ethernet NIC (NDIS 6.0) OK
IRQ 19 Intel(R) ICH9 Family PCI Express Root Port 4 - 2946 OK
IRQ 19 Standard Dual Channel PCI IDE Controller OK
IRQ 19 Intel(R) ICH8R/ICH9R SATA RAID Controller OK

I know very little about IRQs so I could be talking a load of twaddle. But I don't find anyone else on forums having the same trouble as myself.

Please help as I like the board and the rest of my kit seems great.

[Jetpack]

Re: GA-X48-DQ6 Crossfire Problem

Sorry GIGABYTE - Janus Yeh yes I have installed the bridges (check last post) and CCC. Crossfire option does not appear within CCC and only one card is shown within the ATI Overdrive option.

[Jetpack]

Re: GA-X48-DQ6 Crossfire Problem

Hi,

Please can I have some help from gigabyte tech support on this, else I'll have to RMA the motherboard (I don't really won't to as I like the board).

Cheers,

[JonnyTuba]

Re: GA-X48-DQ6 Crossfire Problem

I have two 3870 cards that won't connect with crossfire. They can both bee seen in controll panel, and I can Press the "Crossfire enabled" button but the crossfire teknology will not be turned on. So wierded out atm...

Jonny T.