Edit:
1. Show memory command output:
(Aruba3200) #show memory
Memory (Kb): total: 354048, used: 261916, free: 92132
Below is the CLI output from a 3200 after the memory upgrade not 3200XM hardware.
(Aruba3200XM) #show memory
Memory (Kb): total: 691968, used: 456660, free: 235308
Above you can note two things: Total and Free memory:
Total: 354048Kb for 3200 without extended memory
Total: 691968Kb for 3200XM with extended memory