Intel Vig390s - Manual (Page 12)

Vig390s Motherboard Manual V1.0 11
System Memory
Main Memory
The motherboard has four DDR2 SDRAM Dual Inline Memory Module (DIMM)
sockets. Support for up to a maximum memory size of 8GB. The BIOS automatically
detects memory type, size, and speed.
The motherboard supports the following memory features:
• 240 pin DDR2 400 MHz SDRAM DIMMs with gold-plated contacts
• Unbuffered, single-sided or double-sided DIMMs with the following restriction:
Double-sided DIMMS with x16 organisation are not supported.
• 8 GB maximum total system memory total amount of addressable memory.
• Minimum total system memory: 256 MB
• 72bit registered ECC DIMMs
• Serial Presence Detect
Notes:
To be fully compliant with all applicable DDR2 SDRAM memory specifications, the
board should be populated with DIMMs that support the Serial Presence Detect
(SPD) data structure. This allows 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 5: Supported Memory Configurations
DIMM
Capacity
Configuration
SDRAM
Density SDRAM Organisation
Front-side/Back-side Number of
SDRAM Devices
256 MB SS 256 Mbit 32 M x 8/empty 8
256 MB SS 512 Mbit 32 M x 16/empty 4
512 MB DS 256 Mbit 32 M x 8/32 M x 8 16
512 MB SS 512 Mbit 64 M x 8/empty 8
512 MB SS 1 Gbit 64 M x 16/empty 4
1024 MB DS 512 Mbit 64 M x 8/64 M x 8 16
1024 MB SS 1 Gbit 128 M x 8/empty 8
2048 MB DS 1 Gbit 128 M x 8/128 M x 8 16
Note: In the second column, “DS” refers to double-sided memory modules (containing two rows of
DDR SDRAM) and “SS” refers to single-sided memory modules (containing one row of DDR
SDRAM).