2-12
Chapter 2: Hardware information
2.4
System memory
2.4.1 Overview
The motherboard comes with four Double Data Rate (DDR) Dual Inline
Memory Module (DIMM) sockets.
The following figure illustrates the location of the sockets.
2.4.2 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 on memory configurations
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, install only identical (the same type
and size) DDR DIMM pairs for each channel.
3. Always install DIMMs with the same CAS latency. For optimum
compatibility, it is recommended that you obtain memory modules
from the same vendor. See list of Qualified Vendors List on page
2-13.
4. When all four sockets are populated with 1GB DIMMs (total 4GB),
the system may detect only 3+GB (a little less than 4GB) due to
the Southbridge resource allocation.
5. It is recommended to use the blue DIMM slots first.
P4S800D-E
®
P4S800D-E 184-Pin DDR DIMM Sockets
80 Pins
104 Pins
DIMM_A
1
DIMM_A
2
DIMM_B
1
DIMM_B
2
