Product Description 
 15 
For information about   Refer to 
Power supply connectors  Section 2.2.2.4, page 49 
1.5  System Memory 
The board has two DIMM sockets and supports the following memory features: 
•  1.8 V DDR2 SDRAM DIMMs with gold plated contacts, with the option to raise the 
voltage to support higher performance DDR2 SDRAM DIMMs 
•  Dual channel interleaved mode support 
•  Unbuffered, single-sided or double-sided DIMMs with the following restriction: 
Double-sided DIMMs with x16 organization are not supported. 
•  8 GB maximum total system memory.  Refer to Section 2.1.1 on page 39 for 
i
nformation on the total amount of addressable memory. 
•  Minimum total system memory:  512 MB 
•  Non-ECC DIMMs 
•  Serial Presence Detect 
•  DDR2 667 MHz or DDR2 800 MHz SDRAM DIMMs 
•  DDR2 667 MHz DIMMs with SPD timings of only 5-5-5 (tCL-tRCD-tRP) 
•  DDR2 800 MHz DIMMs with SPD timings of only 5-5-5 or 6-6-6 (tCL-tRCD-tRP) 
  NOTE 
To be fully compliant with all applicable DDR SDRAM memory specifications, the board 
should be populated with DIMMs that support the Serial Presence Detect (SPD) data 
structure.  This enables the BIOS to read the SPD data and program the chipset to 
accurately configure memory settings for optimum performance.  If non-SPD memory 
is installed, the BIOS will attempt to correctly configure the memory settings, but 
performance and reliability may be impacted or the DIMMs may not function under the 
determined frequency. 
Table 3 lists the supported DIMM configurations. 
Table 3.  Supported Memory Configurations 
 
 
DIMM 
Type 
 
 
SDRAM 
Technology 
Smallest usable 
DIMM (one x16 
Single-sided 
DIMM) 
Largest usable 
DIMM (one x8 
Double-sided 
DIMM) 
Maximum capacity 
with two identical 
x8 Double-sided 
DIMMs 
DDR2 667  512 Mbit  256 MB  4 GB  8 GB 
DDR2 800  512 Mbit  256 MB  4 GB  8 GB 
 
For information about…   Refer to: 
Tested Memory   http://support.intel.com/support/motherboards/desktop/sb/
CS-025414.htm