First check what is inside the following OID on your system .1.3.6.1.2.1.1.2.0.
With the result we can have a look if there are already checks present inside CMK supporting your device. I don’t think so.
The next step would be to consult your documentation to find the right OID’s for PSU, FAN and CPU on your system.
With this OID’s we can look if checks for other devices query the same OID’s and if this happens the other check can be extended with your model indentification. (This would be the easiest way)
If no check is found using the same OID’s as your devices then the only option is to write an own check for the device.