11
Troubleshooting Methods for Common Hardware Failure
No.
Fault Phenomenon
Analysis of Causes
Repair Method
1
The PC doesn’t
boot up after
press the power
switch
The power
adapter is work
or not
Suggest to plug tighten the power
cord or change the socket;
Change the power adapter
Motherboard
damages
Send back to repair
2
No image on the
monitor
Maybe the
signal input is
not connected
properly
Check whether the PC starts up
normally; Check whether the LED
of monitor is on or not; Check
whether VGA cable or HDMI cable
is connecting right or not
The monitor is
in a
"power-saving"
state
Press any key of the keyboard
3
Can’t enter the
OS
BIOS Setting
mode not allow
Boot up the PC, then press the
“DEL”, enter BIOS, change the OS
mode to WIN7/WIN8.X, then
press “F4” save and exit.
Hard disk
power cord or
data cable is
damaged
Check HDD (The hard disk must
be installed the OS and bootable)
power cord or data cable is loose
or not.
