14
System Memory
The 586TXD system board supports two kinds of memory modules:
DIMM and SIMM. DIMM, which uses SDRAM, performs better than
SIMM, which uses DRAM. Refer to page 12 for the locations of the DIM
and SIM sockets.
Important:
DIM and SIM modules cannot exist on the 586TXD system board at the
same time. Use either SIMM or DIMM only, and not both.
DIMM
The two 168-pin DIMM (Dual In-line Memory Module) sockets use x64
EDO, FPM and SDRAM. The 586TXD system board can support 8MB
to 64MB memory using 1MBx64, 2MBx64 or 4MBx64 DIMM. The table
below shows the supported DIM modules and their corresponding
memory sizes.
DIMMs
1MBx64
2MBx64
4MBx64
Memory Size
8MB
16MB
32MB
The table below summarizes the DIMM sockets and modules needed
for the corresponding memory sizes.
Memory Size
8MB
8MB
16MB
16MB
16MB
24MB
24MB
32MB
DIM 0
1MBx64
none
2MBx64
none
1MBx64
1MBx64
2MBx64
4MBx64
DIM 1
none
1MBx64
none
2MBx64
1MBx64
2MBx64
1MBx64
none
Memory Size
32MB
32MB
40MB
40MB
48MB
48MB
64MB
DIM 0
none
2MBx64
1MBx64
4MBx64
2MBx64
4MBx64
4MBx64
DIM 1
4MBx64
2MBx64
4MBx64
1MBx64
4MBx64
2MBx64
4MBx64
