If you're learning how to monitor CPU and GPU temperatures on Windows 11, you're already a step ahead of most PC owners. Heat is one of the biggest enemies of modern hardware — and by the time you notice the symptoms (random shutdowns, gaming stutter, a fan that sounds like a hairdryer), components have often been running hot for months. We see this every week at our Parkhead Drive workshop, with machines coming in from across Edinburgh — Leith, Morningside, Stockbridge, Corstorphine, and out as far as Bonnyrigg and Penicuik.
The good news is that keeping an eye on your processor and graphics card temperatures takes about ten minutes to set up, and it can extend the life of your PC by years. Here's how to do it properly.
Why Temperatures Matter
Both your CPU and GPU produce heat as they work. Inside the chip, tiny safety circuits will throttle (slow down) performance once a thermal threshold is reached, and shut the machine off entirely if temperatures keep climbing. That protective behaviour saves your hardware from instant damage, but repeated thermal throttling wears down chip lifespan, dries out thermal paste, and damages capacitors and solder joints over time.
If your Edinburgh flat gets warm in summer or your PC sits in an enclosed desk cubby, the problem compounds. Monitoring is the simplest way to catch a brewing issue before it becomes a full overheating problem or, worse, one of the early signs of CPU failure.
What Counts as a "Normal" Temperature?
Rough guidelines for desktop and laptop PCs running Windows 11:
- CPU at idle: 30–50 °C is healthy. Anything sitting above 60 °C with no apps open suggests a background process is working hard, or cooling is struggling.
- CPU under load (gaming, video editing, compiling): 65–85 °C is typical. Modern Intel and AMD chips can briefly touch 90 °C+ during heavy bursts, but sustained 90 °C+ is a warning sign.
- GPU at idle: 30–50 °C, depending on the model.
- GPU under load: 65–80 °C is fine for most cards. Above 85 °C sustained is worth investigating.
Laptops generally run hotter than desktops because of tighter cooling. A laptop CPU hitting 90 °C during a long Zoom call or a Photoshop export isn't unusual, but it shouldn't be the norm.
The Easy Way: Windows Task Manager
Windows 11's Task Manager will show your GPU temperature out of the box — no extra software needed.
- Press Ctrl + Shift + Esc to open Task Manager.
- Click the Performance tab.
- Select GPU on the left.
- Look for the GPU Temperature reading in the bottom-right area of the panel.
This is handy, but it has two limits: it doesn't show CPU temperature, and it only gives you a current snapshot rather than a graph over time. For anything more serious you'll want a dedicated tool.
The Better Way: Dedicated Monitoring Tools
A few well-trusted utilities give you a complete picture:
- HWMonitor (CPUID): simple, lightweight, shows CPU package temperature, individual core temperatures, GPU temperature, drive temps, voltages, and fan speeds. A great starting point for most users.
- HWiNFO64: the most detailed of the bunch. Excellent for diagnosing intermittent issues because it logs minimum, maximum, and average readings while it's running.
- Core Temp: a no-frills option that focuses on per-core CPU temperature. Tiny installer.
- MSI Afterburner with RivaTuner: the standard pick for gamers. It overlays live temperature, fan speed, and frame-rate data on top of any game, so you can see exactly what your PC is doing under fire.
Whichever you pick, leave it running for ten minutes while you do whatever normally pushes your PC hard — a Steam game, a Premiere export, a long Teams call — and watch how the temperatures behave. A steady plateau is fine. A constant climb that ends in a thermal shutdown is not.
Common Reasons Temperatures Climb
If your numbers are higher than the ranges above, the usual culprits are predictable:
- Dust build-up in heatsink fins and case fans — by far the most common cause we see in homes around Morningside and Portobello, especially in older desktops.
- Dried-out thermal paste between the chip and its cooler. Thermal paste typically needs replacing every 3–5 years.
- Failing fans that spin slower than they should, or seize completely.
- Poor airflow — laptops on a duvet, desktops crammed against a wall, or cases with their intake filter clogged.
- Aggressive overclocks or undersized coolers on gaming and workstation builds.
- Background malware mining cryptocurrency on your hardware. If you suspect this, our virus warning signs guide walks you through what to look for.
What to Do If Your Temperatures Are Too High
For minor issues you can often handle the basics yourself: blow dust out of vents with a can of compressed air (with the PC powered off), make sure all fans are spinning, give the machine room to breathe, and avoid blocking laptop vents on soft surfaces.
If temperatures stay high after a clean, or if the PC is shutting itself down under load, it's time to look deeper. We offer a hardware diagnostic and upgrade service covering thermal paste replacement, cooler upgrades, and case airflow improvements. For laptops with stubborn heat issues we open the chassis, replace pads and paste, and clean the heatsink in our workshop — see our laptop repair service for details. If you're putting together a high-performance build from scratch, our custom PC build service picks cooling that's properly matched to the workload.
Catch It Early, Save Yourself a Repair Bill
Thermal damage is one of the few PC problems that is almost entirely preventable. Five minutes a month checking your temperatures will spot a clogged heatsink, a failing fan, or a thermal paste problem long before it kills a CPU or a GPU. If you're not sure what you're looking at, or your readings already look concerning, book a diagnostic with us in Edinburgh — we'll take a look, give you a clear answer, and quote you properly before any work goes ahead.