Memory error with sapphire 6870

[Kaupish]

Hello all,
I recently purchased two Sapphire 6870's to upgrade from my Asus 4850's. Went through the whole process of uninstalling the old drivers first and all of that and then shut down. Installed the new cards and now I get a set of beeps. There is one long beep with three shorter beeps and then it just sits there and doesn't load. I have read that this is a memory problem, but when I put my 4850's back in the computer starts up just fine. I have tested the 6870's in another computer and they start up fine with that one. Any help on what to do would be much appreciated.

Thanks

My specs are:
ASUS M3A32-MVP Deluxe/WiFi
ABS Tagan BZ Series BZ900 900W
AMD Phenom II X4 940 Black Edition Deneb 3.0GHz
4 x Kingston HyperX 2GB 240-Pin DDR2 SDRAM DDR2 1066

 

[clarkjd]

Have you tried the new cards one at a time in your current machine?

 

[Kaupish]

Yep, tried each one at a time and in different slots.

 

[clarkjd]

Yep, tried each one at a time and in different slots.

and did they work?

 

[Kaupish]

Unfortunately, they did not. Still got the same error beeps as I did before with both of them installed.

 

[clarkjd]

What is the PCI-e standard on your motherboard? If it is 1.0 and the vid cards are 2.1, there may be some incompatability there.

 

[Kaupish]

My motherboard supports 2.0/1.0, and I have read in a couple different sites that 2.0 and 2.1 are compatible with each other....or is this wrong?

 

[clarkjd]

2.0 & 2.1 should be compatible.