Asus P4P800S SE 1.9.1 Memory configurations, Important notes, Table 1 Memory frequency/CPU FSB synchronization, PC2100, CPU FSB, 800 MHz, 533 MHz, 400 MHz, 266 MHz

1.9System memory

The motherboard comes with two Double Data Rate (DDR) Dual Inline Memory Module (DIMM) sockets. These sockets support up to 2GB system memory using 184-pin unbuffered non-ECC PC3200/PC2700/PC2100 DDR DIMMs. The following figure shows the location of the DDR DIMM sockets.

P4P800S SE

DIMM1	DIMM2	Pins
		80
		104 Pins

P4P800S SE 184-Pin DDR DIMM Sockets

1.9.1 Memory configurations

You may install 64MB, 128MB, 256MB, 512MB, and 1GB DDR DIMMs into the DIMM sockets using the memory configurations in this section.

Important notes

1.For optimum compatibility, it is recommended that you obtain memory

modules from the same vendor. See the DDR400 Qualified Vendor List (QVL) on page 1-13.

2.Make sure that the memory frequency matches the CPU FSB (Front Side Bus). Refer to Table 1.

3.Always install DIMMs with the same CAS Latency.

4.Double-sided DDR DIMMs with x16 (data bus=16bit) memory chips are not supported due to chipset limitation.

Table 1 Memory frequency/CPU FSB synchronization

This motherboard supports different memory frequencies depending on the CPU FSB (Front Side Bus) and the type of DDR DIMM.

CPU FSB	DDR DIMM Type	Memory Frequency
800 MHz	PC3200/PC2700/PC2100	400/320*/266 MHz
533 MHz	PC2700/PC2100	333/266 MHz
400 MHz	PC2100	266 MHz

1-12 Chapter 1: Product introduction