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Chapter 2: Hardware information
Table 1 Recommended memory configurations
Table 2 Memory frequency/CPU FSB synchronization
* Use only identical DDR DIMM pairs.
Sockets
Mode DIMM_A1 DIMM_A2 DIMM_B1 DIMM_B2
Single-channel (1) Populated — — —
(2) — Populated — —
(3) — — Populated —
(4) — — — Populated
Dual-channel* (1) Populated
— Populated —
(2) —
Populated — Populated
(3) Populated Populated Populated Populated
CPU FSB DDR DIMM Type Memory Frequency
800 MHz PC3200/PC2700*/PC2100 400/333*/266 MHz
533 MHz PC2700/PC2100 333/266 MHz
400 MHz PC2100 266 MHz
* For dual-channel configuration (3), you may:
• install identical DIMMs in all four sockets
or
• install identical DIMM pair in DIMM_A1 and DIMM_B1 (blue sockets)
and identical DIMM pair in DIMM_A2 and DIMM_B2 (black sockets)
• *When using 800MHz CPU FSB, PC2700 DDR DIMMs may run
only at 320MHz (not 333MHz) due to chipset limitation.
• The following FSB/DDR ratios are not supported: 400/333,
400/400, 533/400.
• FSB/DDR setting 800/333 is recognized as FSB/DDR 800/320.
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