The Intel 645524-304 645524-304 Dual Processor Board 658544-003 is in in stock at Calhoun Technologies. For over 10 years Calhoun Technologies has been saving companies likes your up to 80% off list price on hard to find computer hardware. Manufacturer: Intel Part Number: 645524-304 Details: Intel 645524-304 645524-304 Dual Processor Board 658544-003