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Windows 7: 5770 cf problem

21 Aug 2010   #1

5770 cf problem

ive been having a problem with crossfire performance recently only started happening the other week

my cf is only slightly more than a single 5770
and im judging this by games with great crossfire support for my 5770's
(COD MW2 / Farcry2)

okay so the problem is my second gpu is under the most load during 3d mode
example looking at msi afterburner when ive been playing a demanding game will show first gpu at about 90% and second gpu under 100% load
and this is resulting in low performance

Ive tried reinstalling window, tried all the drivers 10.4 -10.7 (correctly removing them all)
im baffled
sometimes when i install the drivers or disable cf then re-enable it will work showing under even load when gaming , resulting in HUGE fps boost then it will just start acting up again ,

Ive tried both gpu's on there own
in both the pci slot and they are both fully working

this is getting so frustrating

edit-- heres an example
playing cod mw2 maxed @1920-1080
5770 cf problem-vbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb.png
im still getting gr8 fps average about 150fps but i was getting higher when both gpu's were @ 100% like they should be

and when playing farcry2 ive lost 20 fps and thats much more noticable because im hovering around 40-50 fps where as with vsync enabled i never used to dip below 60 fps

My System SpecsSystem Spec
21 Aug 2010   #2

Windows 7 Home Premium 64Bits SP1

Sorry I don't have an answer to your problem but I was wondering if you could kindly post what utility/program you use to display the graph information you posted (not the screen capture).

I use CF w/XFX-5770's but don't have a clue of what the GPU's are doing at any given time.

My System SpecsSystem Spec
21 Aug 2010   #3


Quote   Quote: Originally Posted by Manigue View Post
Sorry I don't have an answer to your problem but I was wondering if you could kindly post what utility/program you use to display the graph information you posted (not the screen capture).

I use CF w/XFX-5770's but don't have a clue of what the GPU's are doing at any given time.

msi afterburner
My System SpecsSystem Spec

21 Aug 2010   #4


just been playing mafia 2 demo and getting good fps then the first gpu started using less and less resources killing my fps
5770 cf problem-asdfsdf.png
look where its circled still a bit of an uneven load but i was getting gr8 fps
fps just started dropping leaving me with a crippling 20fps

could this be motherboard related problem
or maybe even psu one?

My System SpecsSystem Spec
21 Aug 2010   #5

Windows 8.1 Pro

Stupid question but...

You do have the latest AMD Application Profile Update installed right?
My System SpecsSystem Spec
21 Aug 2010   #6



i was seriously think of getting rid of one of my cards
but i just thought my last option to restore my bios
to default and that has fixed it .
it seems as though as something was disabled what wasnt allowing me to install certain drivers
because after resetting to default these drivers installed
5770 cf problem-capture.png
and now both gpus are under equal load and giving me stable performance
i dont feel so much like throwing my pc out the window now

p.s- but now i just remembered i forgot to save my overclocked setting before i restored my bios
nooooooooooooooooooooooooooooooooooooooooooooooooooo lol

My System SpecsSystem Spec

 5770 cf problem

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