Asus M3N78 Specifications download pdf (Page 22)

1.7.2 Memory congurations

You may install 256MB, 512MB, 1GB, 2GB, and 4GB unbuffered ECC/non-ECC DDR2

DIMMs into the DIMM sockets.

• You may install varying memory sizes in Channel A and Channel B. The system maps

the total size of the lower-sized channel for the dual-channel conguration. Any excess

memory from the higher-sized channel is then mapped for single-channel operation.

• Always install DIMMs with the same CAS latency. For optimum compatibility, we

recommend that you obtain memory modules from the same vendor.

• Due to the memory address limitation on 32-bit Windows

OS, when you install 4GB

or more memory on the motherboard, the actual usable memory for the OS can be

about 3GB or less. For effective use of memory, we recommend that you do any of the

following:

- Use a maximum of 3GB system memory if you are using a 32-bit Windows

OS.

- Install a 64-bit Windows

OS when you want to install 4GB or more memory on

the motherboard.

• This motherboard does not support DIMMs made up of 256 megabits (Mb) or less.

The motherboard supports up to 8GB memory modules on Windows

XP Professional x64

and Vista x64 editions. You may install a maximum of 2 GB DIMMs on each slot.

M3N78-AM Motherboard Qualied Vendors Lists (QVL)

DDR2-1066MHz capability

The default DIMM frequency depends on its Serial Presence Detect (SPD), which is the

standard way of accessing information from a memory module. Under the default state,

some memory modules for overclocking may operate at a lower frequency than the vendor-

marked value.

Vendor Part No. Size

SS/

CL Chip No.

Chip

Brand

DIMM

support

A* B*

Corsair CM2X1024-8500C5 1G DS N/A Heat-Sink Package N/A • •

OCZ OCZ2N1066SR2DK 2G(kit of 2) DS 5-5-5-15 Heat-Sink Package(EPP) SN:00482080600160-1 OCZ • •

GEIL GB24GB8500C5QC 1G SS 5 GL2L128M88BA25AB GEIL • •

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Asus M3N78 Specifications Page 22