When booting computer I receive several beeps

[hassen1]

Issue:
When booting computer I receive several beeps.

Cause:
This can be caused by one following possibilities:
Keyboard has a stuck key.
Computer has a password.
System Chassis alarm.
Computer does not pass POST.
Solution:

Keyboard has a stuck key
A stuck key or a keyboard that has failed can cause the computer to beep abnormally.

Turn off the computer and temporarily disconnect the computer keyboard and turn on the computer. If the beeping does not occur when the computer keyboard is disconnected it is likely that a key is stuck or that the keyboard is bad. Slapping the back of a keyboard to dislodge any dust dirt or hair may help ensure there are no stuck keys on the keyboard.
Computer has a password

Some computers have the capability of having a BIOS keyboard password. This password will sometimes cause the computer to beep and the keyboard not to work. To determine if this is the case look at the keyboard LEDs (Num Lock / Caps Lock / Scroll Lock) if these are flashing continuously the computer has a password.

System Chassis alarm
A beeping or buzzing tone can also be caused by the system chassis alarm also known as the intruder alarm when the system case is removed. Verify that the beeping or buzzing noise does not also occur when the computer is off. If this is the case attempt to remove and cover of the case and then put the case back on.

Computer does not pass POST
The more likely possibility of abnormal beeping is when the computer does not pass the POST (Power On Self Test). When the computer fails this test it will sound a 'Beep Code' indicating what caused it to not pass the POST.

[mini_0]

You should just check if the proper boot sequence is followed or not .A boot device is any device that must be initialized prior to loading the operating system. This includes the primary input device (keyboard), the primary output device (display), and the initial program load device (floppy drive, hard drive, CD-ROM, USB flash drive, etc.).A hard reboot (also known as a cold reboot, frozen reboot, cold boot or cold start) is when power to a computer is cycled (turned off and then on) or a special reset signal to the processor is triggered (from a front panel switch of some sort). This restarts the computer without first performing any shut-down procedure