Intel D845HV Product Specification - Page 22

System Memory

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Intel Desktop Board D845HV/D845WN Technical Product Specification 1.7 System Memory CAUTION Before installing or removing memory, make sure that AC power is disconnected by unplugging the power cord from the computer. Failure to do so could damage the memory and the board.  NOTE Remove the AGP video card before installing or upgrading memory to avoid interference with the memory retention mechanism.  NOTE The D845HV/D845WN boards have been designed to support DIMMs based on 512 Mbit technology for a maximum onboard capacity of up to 3 GB, but this technology has not been validated on this board. Please refer to the following Intel web sites for the latest lists of tested memory. For the D845HV board: http://developer.intel.com/design/motherbd/hv/hv_mem.htm For the D845WN board: http://developer.intel.com/design/motherbd/wn/wn_mem.htm  NOTE To be fully compliant with all applicable Intel® 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. The D845HV and D845WN boards both have three DIMM sockets and support the following memory features: • 3.3 V (only) 168-pin SDRAM DIMMs with gold-plated contacts • Unbuffered single-sided or double-sided DIMMs • Maximum total system memory: 3 GB; minimum total system memory: 32 MB • 133 MHz SDRAM DIMMs only • Serial Presence Detect (SPD) • Suspend to RAM • Non-ECC and ECC DIMMs  NOTE For ECC functionality, all installed DIMMs must be ECC. If both ECC and non-ECC DIMMs are used, ECC will not function. 22

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Intel Desktop Board D845HV/D845WN Technical Product Specification
22
1.7 System Memory
CAUTION
Before installing or removing memory, make sure that AC power is disconnected by unplugging
the power cord from the computer.
Failure to do so could damage the memory and the board.
NOTE
Remove the AGP video card before installing or upgrading memory to avoid interference with the
memory retention mechanism.
NOTE
The D845HV/D845WN boards have been designed to support DIMMs based on 512 Mbit
technology for a maximum onboard capacity of up to 3 GB, but this technology has not been
validated on this board.
Please refer to the following Intel web sites for the latest lists of tested
memory.
For the D845HV board:
For the D845WN board:
NOTE
To be fully compliant with all applicable Intel
®
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.
The D845HV and D845WN boards both have three DIMM sockets and support the following
memory features:
•
3.3 V (only) 168-pin SDRAM DIMMs with gold-plated contacts
•
Unbuffered single-sided or double-sided DIMMs
•
Maximum total system memory:
3 GB; minimum total system memory:
32 MB
•
133 MHz SDRAM DIMMs only
•
Serial Presence Detect (SPD)
•
Suspend to RAM
•
Non-ECC and ECC DIMMs
NOTE
For ECC functionality, all installed DIMMs must be ECC.
If both ECC and non-ECC DIMMs are
used, ECC will not function.