Intel D850MDL Product Guide - Page 29
Installing and Removing Memory, Installing Memory
UPC - 735858147170
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Installing and Replacing Desktop Board Components Installing and Removing Memory CAUTIONS Before installing or removing RIMM modules, make sure that ac power has been removed by unplugging the power cord from the computer. The standby power indicator LED should not be lit (see Figure 3 on page 19 for the location of the standby power indicator LED location). Failure to do so could damage the memory and the board. The board supports combinations of no more than 32 RDRAM components per RDRAM channel. If the total number of RDRAM components installed in all RIMM sockets exceeds 64, the computer will not boot. A Continuity RIMM (CRIMM) module must be installed in any unused memory connector or the board will not boot. Incorrect insertion of a RIMM module or a CRIMM module in a RIMM connector can damage the D850MD and D850MV boards. Installing Memory The board has four memory module sockets arranged as bank 0 and bank 1. The pair of sockets closest to the processor is for bank 0, as shown in Figure 13. The memory module requirements are listed in the Main Memory section on page 12. When adding memory: • Install a pair of RIMMs in the sockets in bank 0 first. The RIMMs must be the same speed (PC600 or PC800), size (64 MB, 128 MB, 256 MB, or 512 MB), and density (single- or double-sided). • If the desired memory configuration has been achieved in bank 0, install CRIMMs in the sockets in bank 1 (see Figure 11). 128 MB RDRAM 128 MB RDRAM CRIMM CRIMM Figure 11. RDRAM and CRIMM Installation Bank 0 Bank 1 29