Dan Halbert wrote:
It turns out we were misinformed by an incorrect packing slip. I apologize for the red herring. These are actually Tyan GT20 boxes with Tyan K8SSA (S3870) motherboards. They have 6 DIMM slots and use a ServerWorks BCM5785 (HT-1000) chipset. The config of DIMM slots is kind of weird: there are four nominally supporting the first processor and two supporting the second, though the processors can read from each other's slots.
As for mixing RAM, we did try 4x1GB of identical DIMM's, and got the same problems with i386 CentOS 4.4 . x86_64 is fine.
I don't have any experience with that particular board or chipset. Sorry. Tyan tech support is going to be pretty worthless so I hope you're able to track down the cause of the problem. I'd be curious to know what the root problem is when you get things sorted.
Cheers,