12
7.
Connect the CPU Cooling Fan
power cable connector to the
CPUFAN connector.
Note
: CPU fan and heatsink installation procedures may vary with the type of
CPU fan/heatsink supplied. The form and size of fan/heatsink may also
vary.
Installing Memory Modules
This mainboard accommodates two 168-pin 3.3V and two 184-pin 2.5V un-
buffered SDRAM/DDR SDRAM (Double Data Rate SDRAM) memory modules.
SDRAM provides 800 MB/s or 1 GB/s data transfer rate corresponding with
the bus 100 MHz or 133 MHz. It doubles the rate to 1.6 GB/s and 2.1 GB/s by
transferring data on both the rising and falling edges of the clock. DDR
SDRAM uses additional power and ground lines and requires 184-pin 2.5V
unbuffered DIMM module rather than the 168-pin 3.3V unbuffered DIMMs
used by SDRAM.
Installation Procedure
You must install at least one memory
module in order to use the main-
board.
Note
: You cannot use DDR
SDRAM and SDRAM
simultaneously.
Refer to the following to install the memory modules.
1.
Push the latches on each side of the DIMM slot down.
2.
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
installed correctly.
3.
Check that the cutouts on the DIMM module edge connector match the
notches in the DIMM slot:
