Industrial PCs that aren’t configured properly can become the weakest link in any operation, whether they are sitting in a substation, on a factory floor or in a remote enclosure.
Here’s a practical checklist of what to consider at the planning stage, during installation and for ongoing use, to help ensure your industrial PCs will stay reliable for years to come.
1. Physical environment
Many industrial PC failures can be traced back to environmental stress.
- Temperature: Always check the PC’s rated min/max temperature range, and remember the PC generates its own heat. If it’s installed in a sealed enclosure, calculate the internal heat buildup. Add shading, ventilation or active cooling where needed.
- Dust, humidity and chemicals: Fanless, sealed designs are far more resilient in dusty or humid environments. Salty air (near the coast) or corrosive chemicals (in plants) require additional protection.
- Condensation: Sudden temperature drops can cause moisture to form inside enclosures. Desiccants, heaters, and conformal coatings can help reduce risks.
Check out our detailed article on enclosure temperature and condensation for more details on this.
2. Operating system
Your choice of Windows edition can make or break long-term stability.
- Windows 11 Pro: Regular feature updates, good for general desktop use, but automatic feature updates can cause unattended systems to fail.
- Windows IoT LTSC (Long-Term Servicing Channel): No feature updates. Stability and security patches for 10 years. Ideal for critical industrial systems where you need stability above all else.
3. BIOS configuration
BIOS settings are often overlooked, but they can determine how well your system behaves after a power loss or hardware event.
- Enable auto power-on after power loss to ensure unattended restart.
- For fanless PCs, configure TDP (thermal design power) limits to prevent overheating.
- Use UEFI mode where possible for modern OS support, unless legacy mode is strictly required.
- Always document BIOS settings at installation. This makes reconfiguration easier after battery changes or hardware resets.
4. CMOS battery life
A flat CMOS battery can silently wipe BIOS settings and stop your PC from booting.
- Schedule replacements proactively (every 2 to 4 years is typical, consider shorter intervals where temperatures are extreme).
- Document BIOS settings when configuring the PC, and re-enter them after each battery change.
- Use date-stamped service logs so future technicians don’t miss this step.
5. Windows updates
Unexpected reboots in the middle of a production run? No thanks.
- Configure active hours and maintenance windows so updates happen only during service downtime.
- For critical systems, consider centralised patch management to test updates before deployment.
6. Unattended startups
Industrial PCs often run without an operator watching them, for example in unmanned sites or embedded inside machinery. Configure them so operations resume without human input:
- For software that must be run in a Windows user account: configure Windows to automatically login to a local user account. Note if your software is designed to run as a Windows service, it may not require the system to auto-login to a user account.
- Auto-run all required software or SCADA/HMI apps at startup.
- Use Windows Task Scheduler, Shell Launcher or Startup folder entries to launch applications automatically.
- Test the full power cycle to confirm the PC comes back online and your software auto launches without intervention.
7. Cybersecurity hardening
The cybersecurity threat environment has never been higher. Industrial PCs are increasingly targeted.
- Enable firewalls and restrict unnecessary services.
- Install and maintain antivirus/anti-malware protection.
- Regularly update security patches (or use IoT LTSC to minimise disruption).
- Disable unused ports and services to reduce attack surface.
8. Physical security
Remote hacks aren’t the only cyber threat. Physical tampering is also a risk.
- Use locks, keyed access, or tamper-proof enclosures.
- Restrict physical access to only authorised personnel.
- Log who has access to cabinets or racks where industrial PCs and other equipment are located.
9. Power-related data loss
Power fluctuations and outages are common in industrial environments.
- Use UPS systems to give PCs time to shut down cleanly. Set up and test the UPS utility software to ensure it initiates shutdown in a power outage.
- Consider read-only volumes or write-protected SSDs to prevent corruption.
- Use industrial SSDs with built-in power loss protection.
- Disable write cache in Windows if power instability is a concern.
- Always have backup drives or cloud-based data storage for redundancy.
10. Remote monitoring and management
Unattended sites can’t wait for a technician to drive hours just to reboot a PC.
- Enable remote management tools (Intel AMT, iDRAC, IPMI, or OEM equivalents).
- Use remote health monitoring for disk, CPU temperature, memory and OS status.
- Configure automatic alerts so you know about problems before they cause downtime.
11. Documentation and maintenance
Reliability isn’t just about hardware, it’s also about how well the system is documented and maintained.
- Keep detailed installation notes (BIOS, OS, and application settings).
- Maintain a regular service schedule for firmware updates, CMOS battery replacements, and backups.
- Train staff on basic recovery steps so downtime can be minimised.
Industrial PCs are built for tough environments, but they’re only as reliable as their setup!
At ESIS, we don’t just supply Industrial PCs, we help engineers and project managers configure them for long-term reliability. If you’ve got a project coming up, share your requirements and let’s make sure your hardware is ready to run for years without drama!
Need advice on industrial PC reliability? Contact us today.
