Intel DG33BU Product Guide - Page 13

Desktop Board Features Processor CAUTION Failure to use an appropriate power supply and/or not connecting the 12 V (2 x 2 pin) power connector to the Desktop Board may result in damage to the board, or the system may not function properly. Desktop Board DG33BU 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 Desktop Board through the LGA775 socket. Related Links: Go to the following page or link for more information about: • Instructions on installing or upgrading the processor, page 29 in Chapter 2 • Supported processors for Desktop Board DG33BU, http://www.intel.com/go/findCPU Main Memory 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. 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 the dual or single channel memory configurations defined below. • Four 240-pin Double Data Rate 2 (DDR2) SDRAM Dual Inline Memory Module (DIMM) connectors with gold-plated contacts. • Support for: ⎯ Unbuffered, non-registered single or double-sided DIMMs ⎯ Non-ECC DDR2 memory ⎯ DIMM Type and Timings listed below: Type Timing DDR2-800 DDR2-667 5-5-5 or 6-6-6 only 5-5-5 only ⎯ Serial Presence Detect (SPD) memory only 13