Asus A8S-X 1.7.1 DIMM sockets location, 1.7.2Memory configurations, Important notes, The following figure illustrates the location of the DDR DIMM sockets

1.7System memory

1.7.1 DIMM sockets location

The following figure illustrates the location of the DDR DIMM sockets.

DIMM A1 DIMM A2 DIMM B1 DIMM B2

A8S-X

A8S-X 184-pin DDR DIMM sockets

•Make sure to unplug the power supply before adding or removing DIMMs or other system components. Failure to do so may cause severe damage to

both the motherboard and the components.

•We recommend to install the memory modules first before installing a PCI Express x16 card.

1.7.2Memory 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

•Always install DIMMs with the same CAS latency. For optimum compatibility, it is recommended that you obtain memory modules from the same vendor. Refer to the DDR400 Qualified Vendors List for details.

•Due to chipset resource allocation, the system may detect less than 4 GB of system memory when you installed four 1 GB DDR memory modules.

•Due to chipset limitation, DIMM modules with 128 Mb memory chips or double-sided x16 memory chips are not supported in this motherboard.

•Due to CPU limitation, install on Channel B slots for a single-channel memory configuration.

•Visit the ASUS website (www.asus.com) for the latest DDR 400 Qualified Vendor List for this motherboard.

1-10 Chapter 1: Product introduction