The Intel A81583-304 Motherboard D845Grg, A81583-304, 4000828, Mpga478B 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: A81583-304 Details: Intel A81583-304 Motherboard D845Grg, A81583-304, 4000828, Mpga478B