Asus A7S333 2.5.1 Overview, 2.5System memory, two (2), Three (3), Double Data Rate, Chapter 2: Hardware information, •DIMMs with more than 18 chips are not supported

2.5System memory

2.5.1 Overview

This motherboard uses only Double Data Rate (DDR) Synchronous Dynamic Random Access Memory (SDRAM) Dual Inline Memory Modules (DIMMs). These sockets support up to 3GB system memory using non-ECC , unbuffered PC2700/PC2100/PC1600 DIMMs.

Each DIMM socket/module is two-sided: each side defines one “row” of memory. DIMMs come in combinations of single or double-sided types ranging through 64MB, 128MB, 256MB, 512MB and 1GB to form a total memory size of 64MB to 3GB.

~Three (3) sockets are available for both 266MHz-PC2100 or 200MHz- PC1600 DDR DIMMs to form a memory size of 64MB to 3GB. Only two (2) DIMMs will support 333MHz-PC2700; if more than two 333MHz DIMMs are installed, the system automatically reverts to a maximum speed of 266MHz.

80 Pins

A7S333 104 Pins

A7S333 184-Pin DDR DIMM Sockets

CAUTION! DIMMs are keyed to fit into notches with only one direction. DO NOT force a DIMM into a socket to avoid damaging the DIMM.

•DIMMs with more than 18 chips are not supported.

•ASUS motherboards support SPD (Serial Presence Detect)DIMMs.

This is the memory of choice for best performance vs. stability

• BIOS shows DDR SDRAM memory on bootup screen.

•This motherboard supports three pairs of differential clock signals per DIMM.

14 Chapter 2: Hardware information