Four 240-pin DDR2 SDRAM Dual Inline Memory Module (DIMM) sockets. Support for DDR2 800, DDR2 667, and DDR2 533 MHz DIMMs. Support for up to 8 GB of system memory. Support for ECC and non-ECC memory. 

The following reference is the tested memory list.

	Tested Memory List [PDF]
	File Name: S975XBX2_memlist_Rev_1_1.pdf Size: 77,824 bytes Date: January 2008 Revision: 1.1

This applies to:

Intel® Workstation Board S975XBX2