Po
w
er
Bu
on
is
pr
es
se
d
but PC
fai
ls
to
st
art.
Ye
s
Che
ck if P
ow
er
S
uppl
y
Unit
(P
SU
) i
s
w
or
ki
ng
No
No
An
y
Be
ep
sound
？
No
CL
R
CM
O
S
an
d
ch
ec
k
if CPU 12V
p
ow
er
is
c
on
ne
ct
ed
ar
t t
he PC
st
Re
Pr
oblem wi
th
PSU or boar
d?
If
boar
d
pr
oble
m
->
con
tact
RMA
AC
po
w
er
cor
d
is
p
lu
ed
gg
a
nd
P
SU
sw
itc
h
is
tu
rn
ed
o
n?
Ye
s
oblem
r
Boar
d p
->
c
on
ta
ct
R
M
A
No
- I
f 3
s
ho
rt
b
ee
ps
:
DIMM memory no
t pr
operl
y
ins
ert
ed or memor
y f
ai
lur
e
- I
f 1
lo
ng
b
ee
p
an
d
8
sho
rt
b
ee
ps
:
VG
A
no
t d
et
ec
te
d
Ye
s
Ye
s
Halt a
t PO
ST scr
een
？
Ye
s
R C
MO
LC
S
an
d
re
st
ar
t.
If
fai
l,
co
nt
act
RMA
Ye
s
No
Peripher
al
device
issue
-
HDD
pr
oblem.
-
CM
O
S
se
tu
p
er
ro
r,
d
nee
to
C
LRC
MO
S.
Sy
st
em
fai
l t
o
st
ar
t o
r u
ns
ta
bl
e
a
er modify BI
O
S se
ng
.
M
CL
R
C
O
S
an
d
re
st
ar
t
Tu
rn
on
P
SU
s
w
itc
h
or
c
on
ne
ct
to
w
al
l s
oc
ke
t
st
art.
e
and r
No
Check
if monit
or h
s
a
dis
pl
ay
Check
if monit
or
h
as
d
is
pl
ay
Basic
Tr
oubleshooting Flowchart
