User Guide

Hardware Installation
2-25
buffered
non-buffered
Reserved
Because the positions are different, only non-buffered DIMMs can be
inserted into the DIMM sockets on this motherboard. Although most of
DIMMs on current market are non-buffered, we still suggest you to ask your
dealer for the correct type.
IV. 2-clock and 4-clock signals: Although both of 2-clock and 4-clock signals
are supported by this motherboard, we strongly recommend choosing a 4-
clock SDRAM in consideration of reliability.
Tip: To identify 2-clock and 4-clock SDRAM, you
may check if there are traces connected to golden
finger pin 79 and pin 163 of the SDRAM. If there are
traces, the SDRAM is probably 4-clock; Otherwise, it
is 2-clock.
V. Parity: This motherboard supports standard 64 bit wide (without parity) and
72-bit wide (with parity) DIMM modules.
There is no jumper setting required for the memory size or type. It is
automatically detected by the system BIOS. This motherboard supports
maximum 512MB system memory.
DIMM1 Size of DIMM1 DIMM2 Size of DIMM2
None 0MB None 0MB
8MB 8MB 8MB 8MB
16MB 16MB 16MB 16MB
32MB 32MB 32MB 32MB
64MB 64MB 64MB 64MB
128MB 128MB 128MB 128MB
Total Memory Size = Size of DIMM1 + Size of DIMM2
Caution: There are some old DIMMs made by EDO or
FPM memory chip, they can only accept 5V power and
probably can not fit into the DIMM socket, make sure you
have 3.3V true SDRAM DIMM before your insert it.