AOpen MX64, Руководство пользователя

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Hardware Installation
2-16
2.4 Configuring the System Memory
PIN1
The DIMM type supported is SDRAM
(Synchronous
DRAM), Registered
SDRAM and Virtual Channel Memory.
This motherboard has three 168-pin
DIMM sockets (Dual-in-line Memory
Module) that allow you to install system
memory up to
768MB .
Warning: This motherboard does not support EDO
DRAM.
DIMM modules can be identified by the following factors:
I. Size: single side, 1Mx64 (8MB), 2Mx64 (16MB), 4Mx64 (32MB), 8Mx64
(64MB), 16Mx64 (128MB), and double side, 1Mx64x2 (16MB), 2Mx64x2
(32MB), 4Mx64x2 (64MB), 8Mx64x2 (128MB).
Tip: Here is a trick to check if your DIMM is
single-side or double-side -- if there are traces
connected to golden finger pin 114 and pin 129 of
the DIMM, the DIMM is probably double-side;
otherwise, it is single-side. Following figure is for
your reference.
168
85
Pin 129
Pin 114
II. Speed: Normally marked as -12, which means the clock cycle time is 12ns
and the maximum clock of this SDRAM is 83MHz. Sometimes you can also
find the SDRAM marked as -67, which means maximum clock is 67MHz.