Zde část výpisu z manuálu základní desky:

Memory
Architecture 64-bit (non-ECC) or 72-bit (ECC), noninterleaved
Wait states near zero
DIMM sockets three (gold contacts)
DIMM capacities 32-, 64-, and 128-MB non-ECC SDRAM ("PC100" 100 MHz);
32-, 64-, 128-, and 256-MB ECC SDRAM ("PC100" 100 MHz)
Minimum RAM 32 MB
Maximum RAM 768 MB
Memory access time synchronized with system clock
BIOS address F0000h

A zde link na manuál:
http://support.euro.dell.com/support/edocs/systems/ ban_gx1/specs.htm