Asus P4S800D-X 1.7.1DIMM sockets location, 1.7.2Memory configurations, Important notes, The following figure illustrates the location of the DDR DIMM sockets

1.7System memory

1.7.1DIMM sockets location

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

P4S800D-X

DIMM A1 DIMM A2 DIMM B1 DIMM B2

80 Pins 104 Pins

P4S800D-X 184-pin DDR DIMM sockets

1. It is recommended to use the blue DIMM slots first.

2.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.

3.When installing long AGP cards, it is recommended to install the memory modules first. Long AGP cards, when installed, may interfere with the memory sockets.

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

1.Installing DDR DIMMs other than the recommended configurations may cause memory sizing error or system boot failure. Use any of the recommended configurations in Table 1.

2.In dual-channel configurations, always install an identical (the same type and size) DDR DIMM pair on sockets of the same color.

3.Always install DIMMs with the same CAS latency. For optimum compatibility, it is recommended that you obtain memory modules from the same vendor.

9.Obtain DDR DIMMs only from ASUS qualified vendors. Visit the ASUS website (www.asus.com) for the latest QVL.

1-8 Chapter 1: Product introduction