Axe The Bad Axe 2 ?

Hey Guys,

I bought a Bad Axe 2 two weeks ago and I've had a couple days now to play with this guy. I've been able to get the following to work:

Max (System Unstable) Speed: 3800MHz @ 422MHz FSB / 1:1 / 1066 Strap
Max (Prime95 Stable) Speed: 3500MHz @ 388MHz FSB / 4:5 / 1066 Strap

I haven't been able to get the CPU over 3400MHz and the RAM over 1000MHz at the same time. Since today is the last day to exchange the motherboard, would I be better off getting the GigaByte GA-P35-DS3L if I'm looking to run my RAM at 1066MHz with the CPU overclocked or is this a typical overclock regardless of motherboard?

My Configuration:

CPU || Intel Core 2 Duo E6600 (Batch: L629B885)
HSF || Thermalright Ultra 120 eXtreme with Scythe S-Flex
M-B || Intel D975XBX2 "Bad Axe 2" with BIOS 2809
RAM || Crucial Ballistix Tracer PC2-8500 2 x 1GB (5-5-5-15 @ 2.2V)
VGA || ATi Radeon X1900 CrossFire Edition
HDD || Western Digital 150GB Raptor
NET || ASUS WL-138G V2 802.11g PCI Card
OS || Microsoft Windows Vista x64 Business

Thanks