IWILL H4204 Series, Hardware Installation Manual

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4-4 Install Memory
The system main board uses Dual Inline Memory Modules (DIMM). Two pair banks are available; each
bank supports one CPU with Hyper Transport Technology. The memory DIMMs accommodates
PC2100/2700/3200 (DDR266/DDR333/DDR400) and Double Data Rate Memory (DDR) memory
modules in 128MB, 256MB, 512MB, 1GB, 2GB, and 4GB combinations.
WARNING
H4204 SERIES ONLY supports Registered DDR ECC memory.
IMPORTANT
The system main board has strict memory type and timing requirements. Before you purchase DDR
(Double Data Rate) memory for using in the system main board, you should contact your local reseller
for a recommend list of system memory that has been validated on this system.
This H4204 server system supports only Registered PC3200 /2100 /2700 (DDR400/DDR333/DDR266)
compliant modules. You must populate H0 DIMM modules 0~3 before the H1 DIMM modules 0~3.
IMPORTANT
To take advantage of the 128-bit interface, you must install DIMMs in pairs of two (2). DIMM slots
DIMM0 and DIMM1 are paired, and slots DIMM2 and DIMM3 are paired. If you are only installing two
DIMMS into a Memory Bank, it is recommended that you install them in slots DIMM0 and DIMM1 to get
the full bandwidth.
Two DDR Modules HO DIMM0, HO DIMM1
Four DDR Modules HO DIMM0, HO DIMM1, HO DIMM2, HO DIMM3