Installing Memory Modules
This motherboard accommodates two 184-pin 2.5V unbuffered Double Data
Rate (DDR) SDRAM memory modules. The memory chips must be standard
SDRAM (Synchronous Dynamic Random Access Memory). The memory bus
can run up to 133 MHz.
When you installed DDR266 memory modules, the memory bus can run up to
133 MHz. If you have DDR200, this can only run up to 100 MHz.
Note: SDRAM provides 800 MBps or 1 GBps data transfer depending on
whether the bus is 100MHz or 133MHz. Double Data Rate SDRAM
(DDR SDRAM) doubles the rate to 1.6 GBps and 2.1 GBps. DDR
SDRAM uses additional power and ground lines and requires 184-pin
DIMM modules rather than the 168-pin DIMMs used by SDRAM.
The motherboard accommodates two memory modules. You must install at
least one module in any of the two slots. Each module can be installed with 32
MB to 1 GB of memory; total memory capacity is 2GB.
Do not remove any memory module from its antistatic packaging until
you are ready to install it on the motherboard. Handle the modules only
by their edges. Do not touch the components or metal parts. Always
wear a grounding strap when you handle the modules.
Installation Procedure
Refer to the following to install the memory modules.
1. This motherboard supports unbuffered DDR SDRAM only. Do not attempt
to insert any other type of DDR SDRAM into the slots.
2. Push the latches on each side of the DIMM slot down.
3. Align the memory module with
the slot. The DIMM slots are
keyed with notches and the
DIMMs are keyed with cutouts
so that they can only be in-
stalled correctly.
4. Check that the cutouts on the
DIMM module edge connector
match the notches in the
DIMM slot.
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