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2-2 Memory Installation
How to tackle with the memory Modules:
• Make sure to unplug your Power Supply before adding or removing
memory module. Failure to do so may cause severe damage to both
your mainboard and the memory module.
• Pay attention to the orientation of the DIMM slots. Forcing a DIMM in
a socket improperly will damage the memory module and slot.
• Make sure you have the right type of memory module for your
mainboard.
2-2.1 Dual Channel Memory Features
• Dual Channel Memory Configuration is formed by couple of identical
DDR SDRAMs.
• Dual Channel memory configuration provides higher performance than
Single Channel configurations.
• Matched DIMMs need to have identical density, DRAM technology,
DRAM bus width, and equal number of memory banks.
• This series supports up to 2GB unbuffered Dual Channel DDR 400/
333/266 SDRAM, with 2 DDR DIMM slots on board. Do not insert
other type of modules into these slots.
• The dual memory controller can double the DDR memory bandwidth
up to 6.4GB/s with DDR400, 5.4GB/s with DDR333 and 4.2GB/s with
DDR266.
2-2.2 To Install DDR SDRAM Module
• To enable Dual Channel memory function, users should insert totally
identical (size and frequency) DDR module pair into the bank-pair.
• DDR DIMM slot has 184 pins and one notch. Insert a DDR SDRAM
vertically into the 184-pin slot with the notch-to-rib matching.
(2.5V Voltage Key)DDR Notch
DIMM1
DIMM2
184-Pin DIMM Notch Key Definition
DRAM Key Position
Voltage Key Position
Module Latch
DIMM1+DIMM2 = Dual Channel Memory
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Chapter 2 Hardware Setup
DDR Rib
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