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ASUS System Diagnostics Explained

Beginner ASUS Applies to: Windows 7, Windows 10, Windows 11

Built directly into BIOS, accessible independently of whether Windows will even start.

Before you start: save any open work and note down what you were doing when the problem started — that context helps if you need to search further or ask for help.
  1. Restart the ASUS and press Esc at boot, then select "Enter Setup" to reach BIOS, or hold F2 to go there directly depending on your model.
  2. Look for "System Diagnostics" within the BIOS menu — on many consumer notebooks this is reached by pressing F5, sometimes labeled ADT; on ASUS gaming (ROG) notebooks, press F7 for Advanced, then select ASUS System Diagnostics from there instead.
  3. Run the full component test rather than an individual one if you're not sure what's actually wrong, and let it complete fully before drawing conclusions.
  4. For a Windows-based option instead, the MyASUS app (usually pre-installed) includes some diagnostic and system-check features you can run without restarting.
  5. A passed hardware test rules out the specific components tested, but not a software-level cause for whatever symptom prompted you to run it.
Still not fixed? Send us the details and we'll help you dig further, or browse related guides in ASUS.

Frequently Asked Questions

Why does the diagnostics access key differ between ASUS consumer and ROG models?
ASUS structures gaming (ROG) and consumer notebook firmware somewhat differently, which is why the exact path into System Diagnostics (F5 vs F7 then a submenu) can vary between the two lines.
Is MyASUS a full replacement for BIOS-level diagnostics?
Not entirely — MyASUS offers useful checks from within Windows, but the BIOS-level System Diagnostics can test hardware independently of Windows, which is valuable if Windows itself won't start.

Related guides

How to Enter BIOS or the Boot Menu on an ASUS Computer

F2 for most laptops, with a different key on some older desktop motherboards.

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Where to Get Official ASUS Drivers (and Avoid Fake Ones)

MyASUS and ASUS's own support site — not a third-party "driver updater" tool.

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How to Factory Reset an ASUS Using the F9 Recovery Partition

A recovery environment built into the machine, independent of Windows — useful when Windows itself won't start.

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