Asus P4P8X SE User Manual page 25

Table 1 Recommended memory configurations
Mode
Single-channel
Dual-channel
* For dual-channel configuration (3), you may:
• install identical DIMMs in all four sockets, or
• install identical DIMMs in DIMM_A1 and DIMM_B1 (blue sockets)
and identical DIMMs in DIMM_A2 and DIMM_B2 (black sockets)
Table 2 Memory frequency/CPU FSB synchronization
This motherboard supports different memory frequencies depending on the CPU
FSB (Front Side Bus) and the type of DDR DIMM.
CPU FSB
*800 MHz
533 MHz
400 MHz
* Overclocked mode
• When overclocking to 800MHz CPU FSB, the system supports only
DDR400 (PC3200) DIMMs due to chipset limitation.
• The following FSB/DDR ratios are not supported: 400/333, 400/400,
533/400.
ASUS P4P8X SE motherboard user guide
DIMM_A1 DIMM_A2
(blue) (black)
(1) Populated
(2) — Populated
(3) —
(4) —
(1) Populated
Populated
(2) —
(3)* Populated Populated Populated Populated
DDR DIMM Type
*PC3200
PC2700/PC2100
PC2100
Sockets
DIMM_B1 DIMM_B2
(blue) (black)
— —
—
— Populated
— — Populated
Populated
—
Populated
—
Memory Frequency
400 MHz
333/266 MHz
266 MHz
—
—
—
—
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