The important digit is the middle one which is the generation and x10 is oldest. Current gen is x60. The x is type with 1 being mist basic 1 CPU box and it goes up from there. Odd numbers tend to be 2u and even 1u but there are exceptions to that. The 0 on the end means Intel, a 5 would be amd.
Not in a position to try this right now, but if your server is a Dell and you have the (enterprise, possibly) iDRAC, I think you can make a light on the drive caddy blink so you can identify it.