Power Bu
on is pressed
but PC fails to start.
Yes
Check if Power Supply
Unit
(PSU) is working
No
No
Any Beep sound
No
CLR CMOS and check
if CPU 12V power
is connected
Restart the PC
Problem with PSU or board?
If board problem -> contact RMA
AC power cord is plu ed gg
and PSU switch is turned on?
Yes
Board problem
-> contact RMA
No
- If 3 short beeps:
DIMM memory not properly
e inserted or memory failur
- If 1 long beep and 8 short beeps:
VGA not detected
Yes
Yes
Halt at POST screen
Yes
LR CMOC S and art. rest
If fail, contact RMA
Yes
No
Peripheral device issue
- HDD problem.
- CMOS setup error,
dnee to CLRCMOS.
System fail to start or unstable
a
er modify BIOS se
ng.
CLR C OS M and restart
Turn on PSU switch
or connect to wall socket
and restart.
No
Check if monitor h as
dis
play
Check if monitor
has display
Basic Troubleshooting Flowchart
83
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