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Check repair pricingTroubleshooting Guide · Desktop PC
A desktop has more separate parts than a laptop: wall power, the tower, the monitor and cable, startup and Windows itself. Work out which one is failing before you replace anything.
60-second check
Start with the wall outlet, power strip, power cable and the power supply switch. This is a power problem, not a black-screen problem.
The computer has some power, but the picture isn't reaching the monitor.
Computer Black Screen →This points to a startup or boot problem rather than a monitor or cable problem.
Software and display drivers become more likely, but hardware isn't ruled out yet.
Black Screen Guide →Note whether it happens everywhere or in one app, and whether it started after an update.
Slow Computer guide →Power and cooling both matter. Note whether it happens while gaming or rendering, or during normal use.
Safe checks
Make sure the monitor is set to the right input and the cable is firmly connected at both ends.
A faulty accessory can interfere with startup. Keep only the keyboard and mouse connected while testing.
Fan sounds, beeps, status lights, repeated restarts and drive activity are all useful clues.
A new graphics card, RAM, SSD, Windows update, driver, BIOS setting or power outage can change what to check.
Get it repaired
Windows desktops, iMacs and all-in-one computers.
Computer Repair →Custom builds, graphics card, power supply and cooling problems.
Gaming & Custom PC Repair →Screens, batteries, charging ports, keyboards and liquid damage.
Laptop Repair →Based on real repairs
Our Laptop & Computer Repair Report analyzes 2,142 completed computer and laptop repairs: the most common problem categories, how the data was collected and its limitations.
FAQ
Desktop troubleshooting
If the desktop has unstable power, a burning smell, smoke or liquid damage, stop testing and bring it in for a free diagnostic.
