Functional Architecture Intel® Server Boards S3200SH/S3210SH TPS
26 Revision 1.8
Intel Order Number: E14960-009
3.3 Memory Sub-System
The server board supports up to four DIMM slots for a maximum memory capacity of 8 GB. The
DIMM organization is x72, which includes eight ECC check bits. The memory interface runs at
533/667 MTs. The memory controller supports the following:
Single-bit error correction
Multiple-bit error detection
Memory using 512 Mbit, 1 Gbit, or 2 Gbit DRAM based on memory technology
Memory can be implemented with either single-sided (one row) or double-sided (two rows)
DIMMs.
3.3.1 Memory Configuration
The memory interface between the MCH and the DIMMs is a 72-bit (ECC) wide interface.
There are two banks of DIMMs, labeled 1 and 2. Bank 1 contains DIMM socket locations
DIMM_1A and DIMM_2A. Bank 2 contains DIMM socket locations DIMM_1B and DIMM_2B.
The sockets associated with each bank or “channel,” are located next to each other and the
DIMM socket identifiers are marked on the server board silkscreen near the DIMM socket. Bank
1 is associated with Memory Channel A while Bank 2 is associated with Memory Channel B.
When only two DIMM modules are used, the population order must be DIMM_1A, DIMM_1B to
ensure dual channel operating mode. For more information, see Figure 9.
In order to operate in dual channel dynamic paging mode, the following conditions must be met:
Two identical DIMMs are installed, one each in DIMM_1A and DIMM_1B
Four identical DIMMs are installed (one in each socket location)
Note: Three DIMMs cannot be installed on the server board. This configuration is not
supported. DIMMs that are not “matched” (same type and speed) are not supported. Identical
memory parts are preferred.
The system is designed to populate any rank on either channel including either degenerate
single channel case.
DIMM and memory configurations must adhere to the following:
DDR2 667/800 MHz, unbuffered, DDR2 DIMM modules
DIMM organization: x64 non-ECC or x72 ECC
Pin count: 240
DIMM capacity: 512 MB, 1 GB, and 2 GB DIMMs
Serial PD: JEDEC Rev 2.0
Voltage options: 1.8 V
Interface: SSTL2
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