In my opinion you missing a CPU discovery (OID: 1.3.6.1.4.1.674.10892.5.4.1100.32.1.7.1) to get the status of the CPU (OID: 1.3.6.1.4.1.674.10892.5.4.1100.32.1.5.1.

{#SNMPINDEX} ).
You are also missing a Voltage discovery (OID: 1.3.6.1.4.1.674.10892.5.4.600.20.1.8.1) to get the status 1.3.6.1.4.1.674.10892.5.4.600.20.1.5.1.{#SNMPINDEX}

.. (specially here I found some Mainboard issues)