If you have both, OpManager and ServiceDesk Plus running in your network, you can view a detailed asset information of a device, provided the device is discovered in both the applications, and the ServiceDesk settings are configured in OpManager.
To view the Asset Details, select the device and click Device Info --> Asset Details. This will show the detailed asset information from ServiceDesk Plus.
If ServiceDesk Plus is not integrated, then make sure SNMP is enabled. The device name, the hard disk size, and the RAM size is gathered for SNMP-enabled devices.
To update these details incase you upgrade your systems, follow the steps given below:
Select the device and click Device Info --> Asset Details.
Click Save to apply the changes.