Processor – Intel D975XBX User Manual
Page 13
Desktop Board Features
13
Processor
CAUTION
Failure to use the appropriate power supply (below) and/or not connecting the 12 V (2x4) power
connector to the desktop board may result in damage to the board or the system may not function
properly.
Table 3.
Power Supply Requirements
Platform Compatibility Guide
Power Supply Requirements
05B
12V2 rating of 16 A continuous and 19 A peak current for 10 ms
05A
12V2 rating of 13 A continuous and 16.5 A peak current for 10 ms
04B or 04A
ATX12V (version 2.0 or greater) compliant power supply
The desktop board D975XBX supports an Intel
®
processor in the LGA775 package. Processors are
not included with the desktop board and must be purchased separately. The processor connects to
the Intel desktop board through the LGA775 socket. The supported processors list for Desktop
Board D975XBX is located on the web at:
Related Links
Go to the following links or pages for more information about:
• Instructions on installing or upgrading the processor, page 27 in Chapter 2
• The location of the power connectors, page 46 in Chapter 2
Main Memory
NOTE
To be fully compliant with all applicable Intel
®
SDRAM memory specifications, the desktop board
should be populated with DIMMs that support the Serial Presence Detect (SPD) data structure. If
your memory modules do not support SPD, you will see a notification to this effect on the screen at
power up. The BIOS will attempt to configure the memory controller for normal operation.
The desktop board supports dual or single channel memory configurations defined below:
• Four 240-pin Double Data Rate 2 (DDR2) SDRAM Dual Inline Memory Module (DIMMs)
connectors with gold-plated contacts.
• Support for:
⎯ Unbuffered, non-registered single or double-sided DIMMs
⎯ ECC and non-ECC DDR2 667/533 MHz memory
⎯ Serial Presence Detect (SPD) memory only
⎯ Memory configuration listed below:
• Up to 2.0 GB utilizing 256 Mb technology
• Up to 4.0 GB utilizing 512 Mb or 1 Gb technology
• Up to 8.0 GB utilizing 1 Gb technology