DIMM Slot Nightmare

[ArtfulD]

Hi,
I bought a Shuttle SB81P Barebone S-775 from Komplett and have had a nightmare of a time. Please help if you can, the problem is as follows:

Initially setting up the system with the following components:

Shuttle SB81P Barebone S-775
Intel Pentium 4 530 3.0 GHz 1MB
Corsair XMS3200C2 DDR-DIMM 512MB PC3200 X 2
Western Digital Raptor 74GB S-ATA


While trying to install windows I ran into numerous problems during initial setup which Shuttle eventually informed me was due to memory problems. Thus, I installed memory from my main machine which I know is 100% good which was two sticks of Crucial 512meg. System then refused to boot at all. With one stick of memory in one particular dimm slot the machine worked fine. Add the second dimm, machine wont even get to BIOS. Move that DIMM to the other DIMM slot and no boot either. It has to be a single DIMM (any DIMM) in that particular slot.

I sent the machine back to Komplett whos engineer apparently tested it for 18 hours using Burningtest and it was sent back to me as they said it worked fine. I then bought

Corsair TWINX512-3200C2 DDR-DIMM 512MB

Which was the memory the engineer apparently used. And got the EXACT same problem. One dimm slot filled booted ok, two slots filled not even to BIOS. I am at my wits end having tried lots of different memory and different settings within BIOS trying to get it to work with two slots going. For some strange reason with the original Corsair memory it booted with two slots filled, but then was severly unstable thereafter. All I want now is a refund so I can buy a different motherboard but im wary of paying 18pounds to return it just to have them send it back to me once more.

Any ideas please???

[oldnewbie]

No bright idea's but noticed you have no replies yet and thought ANY idea might encourage you! I have seen reports of problems with memory due to AGP Ratio (CPU : AGP : PCI) not being set to Fixed. You might want to look at other bios settings too and adjust memory timings if you can. Try increasing the timings one at a time. GL.