A friend of mine got a second Gigabyte Windforce 270X. He put it into his machine and... crossfire is not working. Both cards work on their own.
Mobo: MSI 970 gaming
GPUs: 270X´s
CPU: FX-6300
OS: Win10 64-bit
PSU: BeQuiet PowerZone 750W
Things I suggested that did not work:
-Switching cards
-reinstalling drivers/older drivers (currently running Crimson 16.1.1)
-swapping arround the power connectors
-testing with another crossfire bridge
-testing another PSU
"Debug" info:
-Both cards report in MSI-Afterburner & Sapphire Tri-X
-only one card is reported in Crimson
-Enabeling crossfire is not an option, it is not displayed
-Windows reports an error in the device manager
-Both cards on their own work in both slots
Any ideas are helpful at this point.
Update: Windows reports "Error 31" or "Error 51" on the second card at random.
Update No2: Friend has new PSU, reinstalled Win10, updated BIOS, updated/downgraded video drivers, etc etc. The Aftermath: Case of bad mainboard confirmed.
have you enabled crossfire?
How to enable crossfire when it is not an option?
have you even googled?
:)
then you need to have a profile with turned on cf, (game profile - you can create them on your own if it doesn't have one)
also take a look at gpu-z, it should state if cf is enabled or not.
Yes, I asked the internet for advice.
Waiting on friend to reply. Will report in a few minutes.
also post what error your'e getting in event log. // make a ss.
i think one of your gpu's might not work or something along those lines... have they been tested separately? or with other working amd card?
As you might see, Windows does not even report the second card.
Each card for itself works fine in both slots.
Update: Both cards get reported in windows.
something is up with 2nd card, check your mobo. clean out pci-e port... ensure you have enough power etc.
something in hardware is not right.
If the slot was the problem, why would a card placed in said slot work fine? Only one card in the system: No matter in which slot it is, everything works.
The PSU is fine.
however you look at it, its hardware issue. (as you already tried different versions of catalysts)
ensure your power pin cables are in pairs (sometimes psu's play dirty tricks)
Okay, thanks for your effort.
since that gpu uses cf bridge you can try using different bridge port on each of them (it gives you 8 probabilities to try)
also use only 1 bridge.
also see how it works without a bridge (if you still have it in conflict on device manager)
normally if separated without cf bridge both cards should be independent of each other. (in old versions that require bridge.)
