Asus M3A78-EH User Manual download pdf (Page 27)

ASUS M3A78-EH 1-15

• When using only one memory module, start installing the DDR2 DIMM from

slot DIMM_A1 or DIMM_B1 for better overclocking capability.

• For dual-channel conguration (2), you may:

- install identical DIMMs in all four sockets OR

- install identical DIMM pair in DIMM_A1 and DIMM_B1 (yellow sockets)

and another identical DIMM pair in DIMM_A2 and DIMM_B2 (black

sockets)

• Always use identical DDR2 DIMM pairs for dual channel mode. For

optimum compatibility, we recommend that you obtain memory modules

from the same vendor.

• If you are using a Windows 32-bit version operating system (e.g. 32-bit

Windows XP, 32-bit Vista) without the Physical Address Extension (PAE)

support, the system will allocate a certain amount of memory space for

system devices.

• We recommend that you install only a maximum of 3GB system memory

when using a Windows 32-bit version operating system without the PAE.

The excess over 3GB of installed memory will not cause any problem;

however, the system can not use this excess memory space and the

system will display less than the total size of physical memory installed.

64-bit

Windows

XP Professional x64 Edition

Windows

Vista x64 Edition

The motherboard can support 8 GB physical memory on the operating system

listed below. You may install a maximum of 2 GB DIMMs on each slot.

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Asus M3A78-EH User Manual Page 27