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Chapter 1: Product introduction
• Use of three DDR400 DIMM modules on all slots is not recommended. The
operating memory frequency will work only at 266MHz when you install
DDR400 DIMM modules to all slots.
• Obtain DDR 400 DIMMs only from ASUS qualified vendors. Visit the ASUS
website (www.asus.com) for the latest QVL.
Table 1 DDR400 Qualified Vendor List (QVL)
DIMM support
Size Vendor Model CL Brand Side(s) Component
A* B*
256MB KINGSTON KVR400X64C3A/256 N/A Hynix SS HY5DU56822BT-D43 • •
512MB KINGSTON KVR400X64C3A/512 N/A Hynix DS HY5DU56822BT-D43 • •
256MB KINGSTON KVR400X64C3A/256 N/A Infineon SS HYB25D256800BT-5B • •
512MB KINGSTON KVR400X64C3A/512 N/A Infineon DS HYB25D256809BT-5B •
256MB KINGSTON KVR400X64C3A/256 N/A KINGSTON SS D3208DL2T-5 • •
512MB KINGSTON KVR400X64C3A/512 N/A KINGSTON DS D328DIB-50 • •
512MB KINGSTON KHX3200A/512 N/A N/A DS Heat-Sink Package •
256MB SAMSUNG M368L3223ETM-CCC N/A SAMSUNG SS K4H560838E-TCCC •
512MB SAMSUNG M368L6423ETM-CCC 3 SAMSUNG DS K4H560838E-TCCC •
256MB SAMSUNG M368L3223FTN-CCC 3 SAMSUNG SS K4H560838F-TCCC • •
256MB Hynix HYMD232646B8J-D43 AA 3 Hynix SS HY5DU56822BT-D43 • •
512MB Hynix HYMD264646B8J-D43 AA N/A Hynix DS HY5DU56822BT-D43 • •
256MB MICRON MT8VDDT3264AG-40BCB N/A MICRON SS MT46V32M8TG-5BC • •
512MB MICRON MT16VDDT6464AG-40BCB N/A MICRON DS MT46V32M8TG-5BC • •
256MB Infineon HYS64D32300GU-5-B 3 Infineon SS HYB25D256800BT-5B • •
512MB Infineon HYS64D64320GU-5-B 3 Infineon DS HYB25D256800BT-5B • •
256MB Infineon HYS64D32300HU-5-C 3 Infineon SS HYB25D256800CE-5C •
256MB CORSAIR CMX256A-3200C2PT 2 Winbond SS W942508BH-5 •
512MB CORSAIR CMX512-3200C2 2 Winbond DS Heat-Sink Package •
512MB CORSAIR VS512MB400 2.5 VALUE seLecT DS VS32M8-5 • •
1.7.3 Installing a DIMM
Follow these steps to install a DIMM.
1. Unlock a DIMM socket by pressing the
retaining clips outward.
2. Align a DIMM on the socket such that the
notch on the DIMM matches the break on
the socket.
3. Firmly insert the DIMM into the socket
until the retaining clips snap back in place
and the DIMM is properly seated.
A DDR DIMM is keyed with a notch so that it fits in only one direction. DO NOT
force a DIMM into a socket to avoid damaging the DIMM.
Unlocked
DDR DIMM
Side(s): SS - Single Sided DS - Double Sided
CL - CAS Latency
DIMM Support:
A - supports one module inserted into either slot, in a Single-channel memory configuration.
B - supports on pair of modules inserted into two slots as a Single-channel memory configuration.