BE7-Raid PC2700 Memory issues?

WHen I try to install 2 sticks of 512MB PC2700 Mushkin ram, my system freezes. I know the ram is good, I just had both sticks running in an ASUS board withour issue. One stick alone works fine. 2 sticks, either in slot 1+2 or 1+3, cause the freeze.

I underclocked the ram to 266MHz and it still freezes. I bumped up the voltage to the ram and it freezes.

I called Abit and they said the board should support 2 512MB sticks without an issue, so I am going to exchange it for a new board from newegg.

Anyone else have a gig of ram or more running on this board?

Relevant Specs:
Windows XP Pro SP1
Abit BE7 Raid (BIOS:CG set at "Optimized Defaults")
2 x Mushkin PC2700 512MB DDR RAM
P4 2.4GHz B 533 fsb
MSI Geforce4 4200ti 128MB

installed Intel 845PE chipset drivers and app accelerator and all mobo drivers including HP raid.

Have you checked the timings for the memory ?

From the "advanced chipset features" menu in the BIOS:

CAS: 2.5
Act to precharge delay: 7
ras# to cas# delay:3
ras# precharge:3

The board appears to read the memory correctly on boot (it says "DDR333" in the boot screen).

Hmm wierd with the timings you have it should not be any problem

Tried moving the around, using diffrent DIMM slots?
Tried them one by one?