HP 657094-601 - System board (motherboard) assembly (Maho Bay) - For Microtower and Small Form Factor and Microtower PCs (Edison) - For Windows 8 P Retail
HP 657094-501 - System board (motherboard) assembly (Maho Bay) - For Microtower and Small Form Factor and Microtower PCs (Edison) - For Windows 8 S Retail