Are there any decent motherboards available for DIY construction that
support > 4GB of RAM with an AMD 64 CPU?
Several AMD Athlon 64 processor-based motherboards currently support
some of the following memory features:
* PC1600, PC2100, PC2700 & PC3200 unbuffered memory modules. * 184-pin
2.5-Volt DDR DIMMs.
* 64-bit DDR memory bus.
* Supports 64-Mbyte, 128-Mbyte, 256-Mbyte, 512-Mbyte, 1-Gbyte, 2-Gbyte
and 4-Gbyte memory technology. * Supports production DIMMs from
industry standard DRAM memory manufacturers.
AMD list only 1 tested 2GB dimm and it's PC2100. Hard to dind a straight
answer but the above suggest that the memory controller will support DIMMS
up to 4GB in size. If that's the case, then current 4 dimm boards would
support 16GB if you can find 4GB dimm to go in them. I suggest you contact
AMD tech support for a clear answer or might be in the AMD specs. I didn't
look.
Similarly, how about dual or quad CPU boards with hypertransport?
Check Tyan website for up to 32GB.