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2-18 Chapter 2: Hardware information
2.4.2 Memory congurations
You may install 256 MB, 512 MB, 1 GB, and 2 GB unbuffered non-ECC DDR2
DIMMs into the DIMM sockets.
Recommended Memory Congurations
mapped for single-channel operation.
• Always install DIMMs with the same CAS latency. For optimum compatibility,
it is recommended that you obtain memory modules from the same vendor.
than 3GB because the address space is reserved for other critical functions.
This limitation appears on Windows
®
XP/Vista 32-bit operation system which
does not support Physical Address Extension (PAE).
• If you install Windows
®
XP/Vista 32-bit operation system, a total memory of
less than 3GB is recommended.
• This motherboard does not support memory modules made up of 128 Mb
chips.
Mode
Sockets
DIMM_A1 DIMM_A2 DIMM_B1 DIMM_B2
Single-Channel
Populated – – –
– – Populated –
Dual-channel (1)
Populated – Populated –
Dual-channel (2)
Populated Populated Populated Populated
64-bit
Windows
®
XP Professional x64 Edition
Windows
®
Vista x64 Edition
Notes on memory limitations
• Due to chipset limitation, this motherboard can only support up to
8 GB on the operating systems listed below. You may install a maximum of
2 GB DIMMs on each slot.
• Some old-version DDR2-800 DIMMs may not match Intel
®
’s
On-Die-Termination (ODT) requirement and will automatically downgrade
to run at DDR2-667. If this happens, contact your memory vendor to check
the ODT value.
• Due to chipset limitation, DDR2-800 with CL=4 will be downgraded to run
at DDR2-667 by default setting. If you want to operate with lower latency,
adjust the memory timing manually.
Size Vendor Chip No.
SS/
DS
Part No.
DIMM support
A* B* C*
512MB KINGSTON Heat-Sink Package SS KHX8500D2/512 •
1024MB MICRON Z9JKJ SS MT8HTF12864AY-1GAEZES •
2048MB MICRON Z9JKJ DS MT16HTF25664AY-1GAEZES •
1024MB CORSAIR Heat-Sink Package DS CM2X1024-8500C5 • •