Physical memory limits for windows 7

Windows 7 Ultimate - 86x (4gb) - 64x (192gb)
Windows 7 Enterprise - 86x (4gb) - 64x (192gb)
Windows 7 Professional - 86x (4gb) - 64x (192gb)
Windows 7 Home Premium - 86x (4gb) - 64x (16gb)
Windows 7 Home Basic - 86x (4gb) - 64x (8gb)
Windows 7 Starter - 86x (2gb) - 64x (N/A)