Asus P3W-E User Manual download pdf (Page 25)

ASUS P3W-E User’s Manual 25

3. HARDWARE SETUP

System Memory

3. H/W SETUP

3.5.2 DIMM 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 shown. DIMMs are

longer and have different pin contact on each side and therefore have a higher pin

density. SIMMs have the same pin contact on both sides.

P3W-E 168-Pin DIMM Sockets

Lock

FRONT

20 Pins

60 Pins

88 Pins

10 10 1

P3W-E

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)

DRAM Key Position

Voltage Key Position

Unbuffered

RFU

Buffered

Reserved

3.3V

5.0V

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 per DIMM slot.

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Asus P3W-E User Manual Page 25