3.HARDWARE SETUP

3.5.3DIMM Memory Installation

Insert the module(s) as shown. Because the number of pins are different on either side of the breaks, the module will only fit in the orientation as shown. DIMM modules are longer and have different pin contact on each side and therefore have a higher pin density. SIMM modules have the same pin contact on both sides.

20 Pins 60 Pins 88 Pins

Lock

ME-99

Front

ME-99 168-Pin DIMM Sockets

The DIMMs must be 3.3V Unbuffered for this motherboard. To determine the DIMM type, check the notches on the DIMMs (see figure below).

168-Pin DIMM Notch Key Definitions (3.3V)

System Memory

3. H/W SETUP

DRAM Key Position

Voltage Key Position

RFU

Unbuffered

5.0V

Reserved

Buffered

 

3.3V

The notches on the DIMM module will shift between left, center, or right to identify the type and also to prevent the wrong type from being inserted into the DIMM slot on the motherboard. You must ask your retailer the correct DIMM type before pur- chasing. This motherboard supports four clock signals.

ASUS ME-99 User’s Manual

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