True story!
Buy one Asus P5k Pro motherboard bacause it "supports" CrossfireX
Buy two "Crossfire capable" Club3D radeon 4550 videocards.
Install other necessery parts.
Install Windows XP.
Boot up you computer.
Install one videocard, and set latest drivers on it.
Test windows xp home/pro and everything works fine.
Run furmark testprogram, ok. max framerate is around 13 frames
per second.
Then install second identical videocard to computer.
Boot up computer and test with furmark, is there any increase
on video performance?
NO.
Then Install latest bios to motherboard. Download latest drivers
to videocards.
is there any increase on videoperformance?
NO.
Check Catalyst Control Center
- NO POSSIBILITY TO SWITCH CROSSFIREX on! -
When asking Asus, is there Crossfire support on motherboard,
(Asus P5K Pro) they say yes (also package is mention that there
is support for Crossifire, and web pages claims also that there
is Crossifire support) - But Crossfirex not work!
When testing with 2 x Club3D 4550 Radeon card -
Crossfirex wont work.
Asus support claims that Videocard/s is broken.
Both cards work fine with 1 x 4550, on 4x pci-e slot or 16x pci-e slot.
Both cards (one in 4x slot and other 16x slot computer works fine,
BUT CROSSFIRE DO NOT WORK.
Is Asus marketing fake crossfire motherboards?
There is even instructions on manual how to install crossfire cards.
But what to do with instructions, if crossfire DO NOT WORK!
Tested with latest CCC (9.10 version), latest Bios installed on motherboard.
Buy one Asus P5k Pro motherboard bacause it "supports" CrossfireX
Buy two "Crossfire capable" Club3D radeon 4550 videocards.
Install other necessery parts.
Install Windows XP.
Boot up you computer.
Install one videocard, and set latest drivers on it.
Test windows xp home/pro and everything works fine.
Run furmark testprogram, ok. max framerate is around 13 frames
per second.
Then install second identical videocard to computer.
Boot up computer and test with furmark, is there any increase
on video performance?
NO.
Then Install latest bios to motherboard. Download latest drivers
to videocards.
is there any increase on videoperformance?
NO.
Check Catalyst Control Center
- NO POSSIBILITY TO SWITCH CROSSFIREX on! -
When asking Asus, is there Crossfire support on motherboard,
(Asus P5K Pro) they say yes (also package is mention that there
is support for Crossifire, and web pages claims also that there
is Crossifire support) - But Crossfirex not work!
When testing with 2 x Club3D 4550 Radeon card -
Crossfirex wont work.
Asus support claims that Videocard/s is broken.
Both cards work fine with 1 x 4550, on 4x pci-e slot or 16x pci-e slot.
Both cards (one in 4x slot and other 16x slot computer works fine,
BUT CROSSFIRE DO NOT WORK.
Is Asus marketing fake crossfire motherboards?
There is even instructions on manual how to install crossfire cards.
But what to do with instructions, if crossfire DO NOT WORK!
Tested with latest CCC (9.10 version), latest Bios installed on motherboard.
