Specifications

Functional Architecture Intel® Server Board S3420GPRX TPS
Revision 1.1
Intel order number E92065-001
22
 Non-ECC UDIMMs not supported
 Mixing ECC and non-ECC UDIMMs anywhere on the platform will prevent the system to
boot/function correctly
3.2.7.3 RDIMM Configuration rules
Table 7 RDIMM memory configuration rule
DIMM slots per
channel
DIMMs populated per
channel
Speed Ranks per channel
3 1 1066, 1333 Single Rank, Dual Rank
3 1 1066 Quad Rank
3 2 1066, 1333 Single Rank, Dual Rank
3 2 800* Quad Rank
3 3 800* Single Rank, Dual Rank
To get the maximum memory size on RDIMM, the user can get the detailed information from the
following table:
Table 8. RDIMM Maximum configuration
Max Memory Possible 1Gb DRAM Technology 2Gb DRAM Technology
Single Rank RDIMM 6GB
(6x 1GB DIMMs)
12GB
(6x 2GB DIMMs)
Dual Rank RDIMMs 12GB
(6x 2GB DIMMs)
24GB
(6x 4GB DIMMs)
Quad Rank RDIMMs 16GB
(4x 4GB DIMMs)
32GB
(4x 8GB DIMMs)
Intel
®
Server Board S3420GPRX has below limitations on RDIMM.
 No support for LV DIMMs
 256Mb/512Mb technology, x4 and x16 DRAMs on RDIMM are NOT supported
 All channels in a system will run at the fastest common frequency
 No mixing of registered and unbuffered DIMMs
Note *: 1066MHz RDIMMs run at 800MHz.
3.3 Intel
®
3420 Chipset PCH
The Intel
®
3420 Chipset component is the Platform Controller Hub (PCH). The PCH is designed
for use with Intel
®
processor in a UP server platform. The role of the PCH in Intel
®
Server Board
S3420GPRX is to manage the flow of information between its below eleven interfaces:
 DMI interface to Processor
 PCI Express* Interface
 PCI Interface
 SATA Interface
 USB Host Interface