Asus P4P800-E DELUXE User's Guide download pdf (Page 34)

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 64 MB, 128 MB, 256 MB, 512 MB, 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. Use the blue DIMM slots first.

3. In Dual-channel configurations, install only identical (the same type

and size) DDR DIMM pairs for each channel.

4. Always install DIMMs with the same CAS latency, otherwise, the

system may run in a lower frequency. For optimum compatibility, it

is recommended that you obtain memory modules from the same

vendor. See list of Qualified Vendors List on page 2-14.

5. When all four sockets are populated with 1GB DIMMs (total 4 GB),

the system may detect only 3+GB (a little less than 4 GB) due to

the Southbridge resource allocation.

6. Three DDR DIMMs installed into any three memory sockets will

function in single channel mode.

7. Make sure that the memory frequency matches the CPU FSB.

Refer to Table 2 for configurations.

P4P800-E

P4P800-E 184-Pin DDR DIMM Sockets

80 Pins104 Pins

DIMM_A1

DIMM_A2

DIMM_B1

DIMM_B2

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 142 143

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Asus P4P800-E DELUXE User's Guide Page 34