Intel D975XBX - Manual (Page 32)

Intel Desktop Board D975XBX Product Guide
32
Three DIMMs
Install a matched pair of DIMMs equal in speed and size in DIMM 0 (blue) and DIMM 1 (black) of
channel A. Install a DIMM equal in speed and total size of the DIMMs installed in channel A in
either DIMM 0 or DIMM 1 of channel B (see Figure 15).
OM18184
Channel B
Channel A
512 MB, 533 MHz
256 MB, 533 MHz
256 MB, 533 MHz
DIMM 0
DIMM 1
DIMM 0
DIMM 1
Figure 15. Dual Channel Memory Configuration Example 3
NOTE
All other memory configurations will result in single channel memory operation.
Installing DIMMs
CAUTION
Install memory in the DIMM sockets before installing a PCI Express x16 card to avoid interference
with the memory retention mechanism.
To make sure you have the correct DIMM, place it on the illustration of the DDR2 DIMM in
Figure 16. All the notches should match with the DDR2 DIMM.