MSI 745 ULTRA User Guide - Page 22
Memory - ddr
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Chapter 2 Memory The mainboard provides 3 slots for 184-pin, 2.5V unbuffered DDR DIMM. You can install PC1600/PC2100/PC2700 DDR SDRAM modules on the DDR DIMM slots (DDR 1~3). To operate properly, at least one DIMM module must be installed. DDR DIMM Slots (DDR 1~3) Introduction to DDR SDRAM DDR (Double Data Rate) SDRAM is similar to conventional SDRAM, but doubles the rate by transferring data twice per cycle. It uses 2.5 volts as opposed to 3.3 volts used in SDR SDRAM, and requires 184-pin DIMM modules rather than 168-pin DIMM modules used by SDR SDRAM. High memory bandwidth makes DDR an ideal solution for high performance PC, workstations and servers. 2-4
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Chapter 2
2-4
The mainboard provides 3 slots for 184-pin, 2.5V unbuffered DDR DIMM.
You can install PC1600/PC2100/PC2700 DDR SDRAM modules on the DDR
DIMM slots (DDR 1~3). To operate properly, at least one DIMM module must
be installed.
Memory
Introduction to DDR SDRAM
DDR (Double Data Rate) SDRAM is similar to conventional SDRAM, but
doubles the rate by transferring data twice per cycle. It uses 2.5 volts as op-
posed to 3.3 volts used in SDR SDRAM, and requires 184-pin DIMM modules
rather than 168-pin DIMM modules used by SDR SDRAM.
High memory band-
width makes DDR an ideal solution for high performance PC, workstations and
servers.
DDR DIMM Slots
(DDR 1~3)