Intel® Server Board S3420GP TPS Functional
Architecture
Revision 2.4
Intel order number E65697-010
23
Channel A
Channel B
A1
A2
A3
B1
B2
B3
X X X
X
X X
UDIMM
X
X X
X
X
X X
X
X X
X
X
This table defines half of the valid memory configurations. You can exchange Channel A DIMMs
with the DIMMs on Channel B to get another half.
3.2.4.5 UDIMM
Configuration
rules
DIMM slots per channel
DIMMs populated per channel
Speed
Ranks per channel
2
1
1066, 1333
Single Rank, Dual Rank
2
2
1066, 1333
Single Rank, Dual Rank
Table 5. UDIMM memory configuration rule
To get the maximum memory size on UDIMM, you get the detail information from below table.
Max Memory Possible
1Gb DRAM Technology
2Gb DRAM Technology
Single Rank UDIMM
4GB
(4x 1GB DIMMs)
8GB
(4x 2GB DIMMs)
Dual Rank UDIMMs
8GB
(4x 2GB DIMMs)
16GB
(4x 4GB DIMMs)
Table 6. UDIMM Maximum configuration
Intel
®
Server Board S3420GP has the following limitations on UDIMM.
Not support 800MHz ECC UDIMMs
No support for LV DIMMs
256Mb technology, x4 DRAM on UDIMM and quad rank UDIMM are NOT supported
x16 DRAM is not supported on combo routing
All channels in a system will run at the fastest common frequency
No mixing of registered and unbuffered DIMMs
Non-ECC UDIMMs not supported
Mixing ECC and non-ECC UDIMMs anywhere on the platform will prevent the system to
boot/function correctly
