SYNOLOGY-SYSTEM-MIB :: cpuFanStatus

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › SYNOLOGY-SYSTEM-MIB › cpuFanStatus

cpuFanStatus

Module: SYNOLOGY-SYSTEM-MIB

OID (symbolic): SYNOLOGY-SYSTEM-MIB::cpuFanStatus

OID (numeric): 1.3.6.1.4.1.6574.1.4.2

Node type: OBJECT-TYPE

Type: Integer32

Access: read-only

Description: Synology cpu fan status Each meanings of status represented describe below. Normal(1): All CPU fans functional normally. Failed(2): One of CPU fan stopped.

What is cpuFanStatus?

This value reports the health of the CPU fan(s) in a Synology NAS as a two-state code: Normal(1) meaning all CPU fans are working, Failed(2) meaning one has stopped, distinct from the separate systemFanStatus that covers the chassis fans. An administrator monitors this specifically because a failed CPU fan risks thermal throttling or shutdown of the processor under load. For example, cpuFanStatus reporting Failed(2) while systemFanStatus still reads Normal(1) would tell an admin the problem is isolated to CPU cooling rather than general chassis airflow.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.6574.1.4.2
snmpwalk -v2c -c public <target> SYNOLOGY-SYSTEM-MIB::cpuFanStatus

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.6574.1.4.2.1
snmpget -v2c -c public <target> SYNOLOGY-SYSTEM-MIB::cpuFanStatus.1

Start monitoring Synology NAS appliances (temperature/fan/power/DSM-version system status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the SYNOLOGY-SYSTEM-MIB::cpuFanStatus OID value, configure state conditions and alerts, and monitor any Synology NAS appliances (temperature/fan/power/DSM-version system status) from a single console.

OID Breakdown

Upper-level ancestors (7 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.6574synologySYNOLOGY-DISK-MIB
Numeric OIDNameModule
1.3.6.1.4.1.6574.1synoSystemSYNOLOGY-SYSTEM-MIB
1.3.6.1.4.1.6574.1.4fanSYNOLOGY-SYSTEM-MIB
1.3.6.1.4.1.6574.1.4.2cpuFanStatusSYNOLOGY-SYSTEM-MIB