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Why won't my computer turn on? |
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The computer won't start or respond to the On button
If the computer won't turn on, you have to troubleshoot a number of problems, starting with the easiest: ‘Does the computer have power?', and working your way to the hardest: ‘Is there a faulty component?'.
- Does the computer have power?
This oft overlooked problem may occur because the power cord has been kicked out, or has fallen out of a double adaptor. The power switch may be off. Are other devices working? It's possible there is a blackout (power failure) or the fuse has blown. If you have a notebook, the battery may be drained, make sure you've plugged in the AC adaptor.
- What was the last thing changed?
Often, problems with computers come about due to the last thing that has been changed. For example, did you recently move the computer, or vacuumed underneath and cause cables to come loose? Was there a blackout or other power anomaly? Did you recently install a new piece of equipment or peripheral?
This is often the easiest change to reverse to see if it has any effect on fixing the computer.
- Are all cables connected correctly and firmly?
Cables can work loose over time, or people may kick, pull or change cables without realising that they are no longer plugged in correctly. Make sure all cables are firmly seated in their receptacles. Each plug is a different shape, colour or size and will only fit snugly in the correct receptacle. It is difficult to plug something into the wrong plug.
Square Ethernet plug on left, rectangular USB plug on Right.
People often try to put USB plugs into Ethernet Networking receptacles. The observant computer user will notice that the USB plug (and receptacle) is rectangular and fits snugly, while the Ethernet plug (and receptacle) is square and locks into place with a ‘click'. When putting a USB plug into an Ethernet port, the fit is not snug and secure.
- Is there a hardware fault?
Has the computer issued any unusual sounds recently that may be indicative of a hardware fault? These may include fast scraping, rattling or ticking sounds of a fan that is encountering an obstacle. Or a pop or bang sound of an electrical component overloading. Is there any slight smell of burning or smoke?
Unfortunately our power supply is not perfect, transmitting many variations such as power surges or dips. The power supply will attempt to regulate these variations but over time this will wear it out, resulting in the failure of the computer's internal power supply.
- Is an external peripheral causing a problem?
Unplug the devices attached to your computer, such as modems, printers, monitors, headphones or USB hubs. (Make sure you leave the power in!)
Cheap USB hubs are a common cause of computer problems. Replacing unbranded USB hubs with branded hubs such as Targus or Belkin can often rectify the situation.
If you’re still experiencing problems, we can take care of it for you. Just call us for more information. |
Basic Troubleshooting 