Yes, you can do manual entry using Asset Management Suite. Manual entry cannot be done in CMS without AMS.
However, if you do not have AMS, here are a few workaround ideas:
- Name the computer after the serial number/asset tag, then report on computer name
- Use BIOS utilities from Dell/HP/etc to set serial number/asset tag as 'Asset Tag' in BIOS, then report on Asset Tag
- Place the serial number/asset tag value in a registry you create, create a custom inventory to gather this registry value and write it to a custom data class, and report on the custom data class.
I hope this helps!