Intel D875PBZ Product Guide - Page 35

Installing and Replacing Desktop Board Components Installing DIMMs Before installing DIMMs, read and follow these guidelines for dual channel configuration. NOTE Performance Acceleration Technology (PAT) requires a processor with an 800 MHz FSB and DDR400 memory. Install a matched pair of DIMMs equal in speed, density, and technology (see Figure 8) in DIMM 0 in both channels A and B. 256 MB, 128 Mb, DDR400 Channel A DIMM 0 DIMM 1 256 MB, 128 Mb, DDR400 Channel B DIMM 0 DIMM 1 Figure 8. Dual Configuration Example with Two DIMMs If additional memory is to be used, then install another matched pair of DIMMs in DIMM 1 in both channels A and B (see Figure 9). 256 MB, 128 Mb, DDR400 512 MB, 256 Mb, DDR400 256 MB, 128 Mb, DDR400 512 MB, 256 Mb, DDR400 Channel A Channel B Figure 9. Dual Configuration Example with Four DIMMs DIMM 0 DIMM 1 DIMM 0 DIMM 1 NOTE All other memory configurations will result in single channel memory operation. 35