Acer AR380 F1 User Manual - Page 133

Hardware diagnostic testing, Checking the boot-up status

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115 Hardware diagnostic testing This section provides a more detailed approach to identifying a hardware problem and its source. Checking the boot-up status Caution! Before disconnecting any peripheral cables from the system, turn off the system and any external peripheral devices. Failure to do so can cause permanent damage to the system and/ or the peripheral device. 1 Turn off the system and all external peripheral devices. 2 Disconnect each device from the system, except for the keyboard and the display monitor. 3 Make sure the system power cord is plugged into a properly grounded AC outlet and in the power supply module cord socket. 4 Make sure the display monitor and keyboard are correctly connected to the system. 5 Turn on the display monitor. 6 Set the display brightness and contrast controls to at least two thirds of their maximum range. Refer to the documentation that came with your display monitor. 7 If the operating system normally loads from the hard drive, make sure there is no diskette in floppy drive and no disc in the optical drive. 8 If the power indicator is lit, attempt to boot from a floppy diskette or from a disc. 9 Turn on the system. If the power indicator on the control panel does not light, see "Power indicator does not light" on page 117. Verifying the condition of the storage devices As POST determines the system configuration, it tests for the presence of each mass storage device installed in the system. As each device is checked, its activity indicator should turn on green briefly. Check the

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115
Hardware diagnostic testing
This section provides a more detailed approach to identifying a
hardware problem and its source.
Checking the boot-up status
Caution!
Before disconnecting any peripheral cables from the
system, turn off the system and any external peripheral devices.
Failure to do so can cause permanent damage to the system and/
or the peripheral device.
1
Turn off the system and all external peripheral devices.
2
Disconnect each device from the system, except for the keyboard
and the display monitor.
3
Make sure the system power cord is plugged into a properly
grounded AC outlet and in the power supply module cord socket.
4
Make sure the display monitor and keyboard are correctly
connected to the system.
5
Turn on the display monitor.
6
Set the display brightness and contrast controls to at least two
thirds of their maximum range.
Refer to the documentation that came with your display monitor.
7
If the operating system normally loads from the hard drive, make
sure there is no diskette in floppy drive and no disc in the optical
drive.
8
If the power indicator is lit, attempt to boot from a floppy diskette
or from a disc.
9
Turn on the system.
If the power indicator on the control panel does not light, see
“Power indicator does not light” on page 117.
Verifying the condition of the storage devices
As POST determines the system configuration, it tests for the presence
of each mass storage device installed in the system. As each device is
checked, its activity indicator should turn on green briefly. Check the