Whenever a recoverable error occurs during POST, the BIOS displays an error message
describing the problem (see Table 53). The BIOS also issues a beep code (one long
tone followed by two short tones) during POST if the video configuration fails (a faulty
video card or no card installed) or if an external ROM module does not properly
checksum to zero.
An external ROM module (for example, a video BIOS) can also issue audible errors,
usually consisting of one long tone followed by a series of short tones. For more
information on the beep codes issued, check the documentation for that external
device.
There are several POST routines that issue a POST terminal error and shut down the
system if they fail. Before shutting down the system, the terminal-error handler issues
a beep code signifying the test point error, writes the error to I/O port 80h, attempts
to initialize the video and writes the error in the upper left corner of the screen (using
both monochrome and color adapters).
If POST completes normally, the BIOS issues one short beep before passing control to the operating system. 18.April.2014 18.April.2014
click start control panel administration tools computer management device manager scroll through all of your devices
if you see a yellow question or exclamation mark ? ! or a red X you will need to update the drivers for this device right click select update driver/reinstall driver
if you can see your usb device but its not working scroll to Ports(Com&Ltd) right click to update driver
if you computer came with a motherboard disk the drivers could be on it
or you might have to download them
rather doing a driver hunt which can take hours
http://download.cnet.com/slimdrivers-free/3000-18513_4-75279940.html
it might take some time being a freeware driver solution
note: it will find all of your outdated drivers
this is a free driver solutions they will automatically search for and find the correct driver also at cnet http://download.cnet.com/2000-20_4.html on the home page you should see a search tab just type in what you are looking for IE: motherboard name sound drivers you might have to try a few times to get it right
http://download.cnet.com/drivermax/3000-18513_4-10572602.html
Windows 2000/XP/Vista/7/8 free driver program
http://download.cnet.com/drivers-for-free/3000-18512_4-75548155.html
Windows XP/2003/Vista/Server 2008/7/8 free drivers
http://www.innovative-sol.com/drivermax/ free program, paid update available
hope it helps
Get online and got to www.google.com In the google search box type: "Acer Support" (without the quotes and put your manufacturer name before Support). Look for downloads and drivers. Enter your model number and operating system when requested. Download and install the Audio drivers.
test all leads that attach to your hard drive including electrical extensions SATA
the leads from your ((motherboard to your hard drive)) make sure they have a secure connection and are not faulty or just replace them they could be faulty make sure all leads that are attached to your drives dvd\cd have secure connections and are not faulty or just replace them they could be faulty ?
even something as small as an electrical extension or a faulty fan lead can cause this problem computer needs all of the data and power to travel through every working device and to have an end for a computer to be able work properly
a motherboard and a hard drive any leads between them will fail before your motherboard or your hard drive check all electrical extensions make sure they are securely seated even the cd/dvd drives need to have current go through make sure these devices are working
also check your computer ram and cmos battery to make sure they are securely seated and the battery has plenty of charge Cmos battery on some motherboards are soldered in
hope this helps you
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