Com 226 comp trouble shooting II theory book



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com-226-computer-troubleshooting-ii-theory
3 Beeps
Base K RAM failure
There is a failure of some sort
within the first 64 KB of system memory.
The first bank of memory probably has a bad memory chip in it somewhere. It is possible that there is a failure related to the motherboard or a system device as well. Treat as an apparent memory failure. Troubleshoot the motherboard.
4 Beeps
System timer failure
There is a problem with one or more of the timers used by the system to control functions on the motherboard. This is usually a motherboard failure. Troubleshoot the motherboard.
5 Beeps
Processor failure The system processor is generating an error condition indicating a problem with it. There is a problem related to the processor or motherboard. Note that this doesn't mean that the processor is necessarily dead with a dead processor the system won't boot at all (it runs the BIOS code that is used to startup the PC) Troubleshoot the processor. If the processor is not at fault, troubleshoot the motherboard.

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