Question about PC Desktops
It refers to two symptoms. No power just means the machine is dead and nothing happens when you press the power button on the computer. POST stands for Power On Self Test. This is what happens just after you press the power button - the computer checks devices connected to it then starts to load Windows or whatever operating system you have. If the computer is dead, then it is often caused by a faulty power supply (metal box where the power cord goes in. If it won't POST then an error may be displayed to tell you where it stopped during POST, or error beeps may sound to tell the technician which part of POST has failed. Sometimes, you may hear the fans and hard disk, but the monitor stays dead. This is usually caused by the RAM coming loose in it's socket or the video card coming loose/ failing.
Posted on Jan 22, 2009
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If you're hearing beep codes after you turn your computer on, it typically means that the system has encountered some kind of problem before it was able to display any kind of error information on the monitor.
Follow the steps below to determine what system problem the beep code is representing.
Difficulty: AverageTime Required: Anywhere from 10 minutes to a few hours depending on the cause of the beep code
Power on the computer or restart it if it's already on.
Listen very carefully to the beep codes that sound when the computer begins to boot.
Restart your computer if you need to hear the beeping again. You're not likely to make whatever problem you have worse by restarting a few times.
Write down, in whatever way makes sense to you, how the beeps sound.
Important: Pay close attention to the number of beeps, if the beeps are long or short and if the beeping repeats or not. There is a big difference between a "beep-beep-beep" beep code and a "beep-beep" beep code.
This is all important information that will help determine what issue the beep codes are representing.
What steps you take to solve a particular beep code will differ depending on the BIOS manufacturer.
Choose the correct beep code troubleshooting guide below based on your motherboard'sBIOS manufacturer:
Tip: Not sure what brand of BIOS is on your motherboard? See this How To Determine Your Motherboard BIOS Manufacturer guide for some helpful advice.
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