HD3870 Crossfire

jmhpalma · Mar 7, 2008, 03:07 AM

I have:
Mobo: MSI K9A Platinum
Processor: AMD Phenom(tm) 9600 Quad-Core Processor 2.3GHz @ 2.6GHz
Memory: 2046MB RAM OCZ Crossfire approved
Video Card: two MSI ATI Radeon HD 3870 OC Edition Crossfire
Operating System: Windows Vista

and i get really low frames i get the same amount of frames as only one 3870 i checked that everything is connected and that the crossfire is enabled and i get really low frames

im really angry because a friend of mine has one HD3850 and he gets the same frames as my two HD3870

can anyone help?

mkk · Mar 7, 2008, 10:45 AM

What games are you playing and are you running them on high quality settings? Crossfire and SLI may not be so beneficial unless the games are run at higher resolutions and quality settings. Some games aren't dual GPU friendly either depending on how they are coded.

On a side note, 2GB RAM may be on the low side for some games under Vista. As RAM prices are low today I'd plan to get some more for that system.

**temeteus82** · Mar 7, 2008, 11:03 AM

Have you tested the newest catalyst drivers? Cat 8.3

jmhpalma · Mar 9, 2008, 06:17 AM

i have tested the 8.3 and the same thing
Ive tested in counter strike source, COD4, UT3, and crysis and i get the same amount of frames as if i had one card

kn00tcn · Mar 9, 2008, 10:43 AM

cod & source should be scaling easily, something must be up

Judas · Mar 9, 2008, 09:04 PM

UT3 is correctly scaling with my hd3870's crossfired...

i wouldn't be able to play 2560x1600 very well at all if it wasn't..

try disabling crossfire.... then completely uninstalling the drivers.... and then rebooting and reinstalling the drivers again.

jmhpalma · Mar 10, 2008, 12:33 AM

i tried disabling crossfire and uninstalling the drivers

Liqourice · Mar 10, 2008, 10:42 AM

Is it at all possible to disable crossfire in a HD3870X2? I can't find anywhere to do it in CCC.

Mar 7, 2008, 03:07 AM	#1
jmhpalma DriverHeaven Newbie Join Date: Mar 2008 Posts: 3 Rep Power: 0	HD3870 Crossfire I have: Mobo: MSI K9A Platinum Processor: AMD Phenom(tm) 9600 Quad-Core Processor 2.3GHz @ 2.6GHz Memory: 2046MB RAM OCZ Crossfire approved Video Card: two MSI ATI Radeon HD 3870 OC Edition Crossfire Operating System: Windows Vista and i get really low frames i get the same amount of frames as only one 3870 i checked that everything is connected and that the crossfire is enabled and i get really low frames im really angry because a friend of mine has one HD3850 and he gets the same frames as my two HD3870 can anyone help?

Mar 9, 2008, 10:43 AM	#5
kn00tcn DriverHeaven Senior Member Join Date: Jun 2006 Location: Toronto Posts: 649 Rep Power: 0 System Specs	cod & source should be scaling easily, something must be up __________________ http://www.kn00tcn.net/site/ati-catalyst-profiles/ http://www.kn00tcn.net/FPSLimiter.rar

Mar 7, 2008, 10:45 AM	#2
mkk Cthulhu/Dagon 2012 Join Date: Oct 2003 Location: Gefle, Sweden Posts: 4,374 Rep Power: 120 System Specs	What games are you playing and are you running them on high quality settings? Crossfire and SLI may not be so beneficial unless the games are run at higher resolutions and quality settings. Some games aren't dual GPU friendly either depending on how they are coded. On a side note, 2GB RAM may be on the low side for some games under Vista. As RAM prices are low today I'd plan to get some more for that system.

Mar 9, 2008, 06:17 AM	Thread Starter #4
jmhpalma DriverHeaven Newbie Join Date: Mar 2008 Posts: 3 Rep Power: 0	i have tested the 8.3 and the same thing Ive tested in counter strike source, COD4, UT3, and crysis and i get the same amount of frames as if i had one card

Mar 10, 2008, 12:33 AM	Thread Starter #7
jmhpalma DriverHeaven Newbie Join Date: Mar 2008 Posts: 3 Rep Power: 0	i tried disabling crossfire and uninstalling the drivers

Mar 10, 2008, 10:42 AM	#8
Liqourice HardwareHeaven Senior Member Join Date: Nov 2005 Location: Stockholm Posts: 1,547 Rep Power: 83 System Specs	Is it at all possible to disable crossfire in a HD3870X2? I can't find anywhere to do it in CCC.