Proactive Fan Monitoring

See fan speed, fan RPM, and temperature readings in real-time (based on your scanning interval) to keep cooling stable across your infrastructure.

How can you monitor fan RPM and temperature in real time across all your servers?

You need a single view of fan speed (RPM), thermal status, and temperature sensors across servers, storage, and network hardware — before heat turns into a stability problem. PRTG collects available fan and thermal metrics via standard infrastructure methods like SNMP, IPMI, and Redfish, then applies thresholds and sends notifications your team can act on. The result is faster troubleshooting, clearer diagnostics, and fewer blind spots across multi-vendor and multi-site environments.

Supported technologies (examples): Dell, HPE, Lenovo, Fujitsu, NetApp, Cisco UCS (plus SNMP-capable environment/IoT sensors)

Download PRTG Trial

PRTG is compatible with all major vendors, products, and systems

Fan Health and Thermal Visibility Across Your Entire Infrastructure

One View of Fan Health

In mixed environments, fan health data lives across vendor tools and local interfaces. Consolidating it into one view makes it significantly faster to answer basic questions about cooling status across your hardware.

PRTG brings fan monitoring into one place, so you can review fan status, fan speed, and fan RPM (where the device exposes it) alongside temperature readings. You get a clear view of system fans across servers and other hardware, without jumping between consoles.

Central visibility for fan status, RPM (where available), and temperature readings
Works with common methods like SNMP, IPMI, and Redfish
Clear device-level context for faster troubleshooting
Real-time status (based on scanning) plus historical trends for comparison
Built for ongoing hardware monitoring, not one-off checks

Earlier Alerts With Clear Thresholds

Fan behavior and temperature trends give you early signals worth acting on. Having thresholds and notifications configured in advance means your team is aware of changes as they develop, not after they've already affected hardware stability.

With PRTG, you can set thresholds on the fan and thermal metrics your hardware exposes, then get notifications when values move outside the range you care about. That turns fan performance and temperature monitoring into something you can manage day to day, with full visibility into how conditions evolve over time.

Thresholds for fan and thermal status metrics (RPM/temps where exposed)
Notifications routed to the channel your team uses
Trend visibility to spot gradual changes vs. a one-time spike
Helps reduce downtime risk with earlier awareness
Supports condition monitoring for ongoing stability

Faster Troubleshooting With Full Context

When temperatures rise, the first question is whether the issue is isolated to one device or part of a broader pattern. Having fan monitoring and temperature monitoring in the same view makes that assessment faster and more reliable.

PRTG keeps the key metrics together so you can compare fan speed or fan status with temperature readings in the same view, including CPU temperature where your platform provides it. That makes diagnostics more direct and helps you move quickly to the next check that actually matters.

Compare fan speed/status and temperature readings in one view
Use historical metrics and timestamps to support troubleshooting
Reduce time spent switching between consoles
Faster diagnostics when alerts trigger
Clear metrics help prioritize what to check first

See Why IT Professionals Trust PRTG

Start monitoring your infrastructure in minutes. No professional services, no complex configuration, no risk.

Free download

PRODUCT OVERVIEW

Consistent Monitoring Across Every Site

Multi-site setups benefit from consistent cooling visibility, especially in small server rooms and remote locations where local checks don't scale well and centralized oversight matters most.

PRTG supports distributed monitoring so you can apply the same fan health and temperature monitoring across locations and review results centrally. This helps keep standards consistent across different operating systems and hardware types, including Microsoft Windows and Linux environments.

Consistent fan and temperature monitoring across locations
Central visibility with local collection in distributed setups
Site-specific notifications to reduce noise
Works across common operating systems and hardware types
Helps standardize monitoring even with lean teams

Longer Hardware Lifespan Through Visibility

Fan issues are more actionable when you can see surrounding hardware signals at the same time. If voltages, temperature, and storage health also look unstable, you can prioritize the right fix faster.

PRTG supports broader health monitoring so fan operation and cooling signals sit in context with related hardware monitor data. That includes metrics like voltages and power consumption where your platform exposes them, plus storage checks such as S.M.A.R.T. health on supported Windows systems (via the WMI HDD Health sensor). It’s a practical way to support maintenance decisions and help extend hardware lifespan through proactive monitoring.

Fan monitoring alongside voltages and other health monitoring signals
Tie cooling fan performance to overall hardware condition monitoring
Historical metrics support maintenance planning and replacement timing
S.M.A.R.T.-based disk health checks where applicable
Helps optimize maintenance effort with clearer evidence

How PRTG Monitors Fans

Different devices expose fan RPM, thermal status, and temperature readings in different ways. PRTG supports common infrastructure methods so you can monitor across vendors and environments.

IPMI System Health

PRTG provides an IPMI System Health sensor to monitor the status of a system via IPMI.

This can be useful when you want out-of-band visibility into cooling-related signals through the server’s management controller. Which channels you get depends on what the hardware exposes.

Redfish System Health

PRTG provides a Redfish System Health sensor to monitor system health of a Redfish-capable server. This sensor requires credentials for Redfish configured in settings higher in the object hierarchy. Fan and temperature channels are available where exposed by the platform.

SNMP Hardware Sensors

PRTG provides an SNMP Hardware Status sensor that monitors the status of a server’s hardware component via SNMP.

Depending on vendor support and MIBs, SNMP-based hardware monitoring can include channels related to fan health, fan failure indicators, thermal status, and other hardware monitoring signals.

WMI Health Metrics

On Microsoft Windows systems, PRTG can monitor system information via WMI. PRTG also includes a WMI HDD Health sensor that uses S.M.A.R.T. data for hard drive / hard disk health monitoring (useful context when you want to see cooling-related issues alongside storage health signals).

Environment Sensor Data

PRTG can ingest environmental readings from SNMP-capable temperature sensors and related devices. This lets you place fan and thermal alerts into room or rack context, which supports faster troubleshooting. Specific sensors and metrics depend on the environmental hardware you use, including IoT devices with embedded sensors.

free downLoad

Fan Monitoring: Manual Checks vs. PRTG

FEATURE	Without PRTG Without PRTG	With PRTG With PRTG
Fan status visibility	Without PRTG Log into each server’s iDRAC/iLO/iRMC individually	With PRTG Review devices and sensors in one dashboard
Alert on fan failure	Without PRTG Often discovered during checks, or when a device reports a fault	With PRTG Notifications when monitored status/values cross thresholds (based on what the device exposes)
Multi-site coverage	Without PRTG Manual checks per site or inconsistent coverage	With PRTG Remote probes collect locally and report centrally
Historical trend data	Without PRTG May require vendor tools or separate logging	With PRTG Historical metrics stored for trends and comparison
Multi-vendor support	Without PRTG Separate tools per vendor	With PRTG One monitoring tool across vendors (coverage depends on interface/model)
Time to set up monitoring	Without PRTG Manual setup per device/interface	With PRTG Faster rollout with templates and auto-discovery where applicable

free downLoad

“From a server perspective, we're monitoring all of the key components of our service such as CPU usage, RAM disk space, the Windows services that it's running, and network connectivity of that server. In terms of networks, we’re monitoring all of our switches, firewalls, and access points. It’s really useful to be able to easily pull performance metrics from the PRTG dashboard.”

Ollie Kerslake, Infrastructure Lead

Riverford Organic Farmers

“The tool has given us greater control over all types of devices connected to the network (switches, IP telephony, security cameras, IoT, WiFi) that previously remained opaque when dealing with service incidents. This has improved our ability to diagnose and resolve problems, which has translated into greater efficiency and a better user experience in both internal and public services.”

Jordi Tolosà Bel, New Technologies Technician

Vinaroz City Council

“Our objective was to be able to monitor the health of our most critical servers containing data and applications, but also the flows and bandwidth between headquarters, our 50 servers in the cloud and the 15 servers at our production sites. For us, it is essential to have a proactive approach to understand where the weaknesses of the IT system are to be able to improve them.”

Marc Boullier, CIO

Carambar & Co

Paessler PRTG Network Monitor licenses & pricing

Choose the PRTG Network Monitor subscription that's best for you.

License Name	Price	License Details	Get started	Pricing Details
PRTG 500	^$200	per month paid annually	Buy now Buy now	Enough to monitor multiple aspects of 50 devices
PRTG 1000	^$358	per month paid annually	Buy now Buy now	Enough to monitor multiple aspects of 100 devices
PRTG 2500	^$742	per month paid annually	Buy now Buy now	Enough to monitor multiple aspects of 250 devices
PRTG 5000	^$1,300	per month paid annually	Buy now Buy now	Enough to monitor multiple aspects of 500 devices
PRTG 10000	^$1,642	per month paid annually	Buy now Buy now	Enough to monitor multiple aspects of 1000 devices

Over 100,000 Customers Worldwide Love Paessler

Fan Monitoring: Frequently Asked Questions

What fan metrics can PRTG monitor?

PRTG can monitor fan health and fan operation metrics such as fan status and thermal status, and fan rpm or rotational speed where the device exposes it. Many environments also monitor related temperature readings through temperature sensors so fan performance stays in context.

How do thresholds and notifications work for overheating?

You define thresholds for the fan and thermal metrics you care about, such as temperature monitoring values or fan speed ranges (where exposed). When a threshold is crossed, PRTG sends notifications so you can review the device and act. This is threshold-based alerting, not predictive analysis.

Which vendors are commonly covered for fan monitoring?

PRTG is commonly used for hardware monitoring across major vendors such as Dell, HPE, Lenovo, Fujitsu, NetApp, and Cisco UCS. Exact metrics depend on the model and what the vendor interface exposes via SNMP, IPMI, or Redfish.

How does multi-site fan monitoring work with distributed probes?

PRTG can collect monitoring data locally at remote sites and show it centrally, so you don’t need to rely on manual checks at each location. This helps you keep the same fan monitoring and temperature monitoring coverage across sites while still using one monitoring tool.

Can PRTG monitor temperature sensors beyond server hardware?

Yes. In addition to server and device sensors, PRTG can monitor temperature sensors that expose readings via SNMP, including environmental devices or IoT devices with embedded sensors. This can help relate cooling systems and airflow conditions to what you see on the hardware.

Does PRTG control fan speed?

No. PRTG is for fan monitoring, health monitoring, and alerting based on metrics and thresholds. It does not control fan speed or change fan settings.