Prepare COM Express components
6
Power supply
The
CE915GM
will
work
with
an
ATX
‐
compliant
power
supply
or
a
power
supply
that
is
compliant
with
PICMG
®
COM.0
COM
Express
Specification
Revision
1.0
.
When
selecting
a
power
supply,
be
sure
to
consider
the
maximum
power,
AC
input,
frequency,
input
current,
and
DC
out
specifications
of
the
power
supply.
Theoretically,
the
CE915GM
requires
at
least
8
A
on
the
+
12V
power
rail.
Considering
the
power
consumption
of
the
carrier
board,
though,
it
is
best
to
allow
a
certain
amount
of
leeway
on
the
two
power
rails.
For
this
reason,
the
power
supply
should
be
rated
above
200
Watts
with
at
least
12
A
output
on
the
+12
V
power
rail.
A
typical
power
supply
for
the
CR100
Flex
ATX
carrier
board
may
have
these
specifications:
Type:
ATX
Max
Power:
350
W
AC
input:
100–120
V
AC,
200–240
V
AC
Frequency:
50
/
60
Hz
Input
current:
10
A
@
115
V,
6
A
@
230
V
DC
output:
Notes:
•
It
is
recommended
that
you
use
an
ATX
P4
power
supply
with
a
24
‐
pin
cable,
which
is
typically
labeled
“BTX.”
A
20
‐
pin
cable
can
also
be
used,
in
which
case
you
would
plug
the
20
‐
pin
cable
in
on
the
pin
#1
end
of
the
carrier
board’s
ATX
power
supply
connector
and
leave
the
two
pairs
of
pins
on
the
other
end
exposed.
No
adapter
is
required.
•
When
multiple
fans
are
used,
additional
amperage
is
required.
For
example,
if
a
4U
chassis
with
two
fans
has
2A
surge
current
for
each
fan,
16A
is
required
(12A
+
2A
+
2A).
CD-ROM/DVD-ROM drives
A
USB
CD
‐
ROM/DVD
‐
ROM
or
IDE
CD
‐
ROM/DVD
‐
ROM
drive
is
usually
required
for
you
to
install
the
operating
system
and
other
software.
Hard disk
Standard
computer
IDE
and
SATA
hard
disks
(60GB,
80GB,
120GB,
etc.)
can
be
attached
to
the
carrier
board.
The
CR100
carrier
board
contains
one
IDE
header
and
two
SATA
headers.
Keyboard and mouse
The
CR100
carrier
board
supports
a
standard
USB
keyboard
and
USB
mouse,
rather
than
a
PS/2
keyboard
or
mouse.
Voltage
+3.3V
+5V
+12V
-5V
-12V
+5V Standby with 12V power supply
Current
14A
30A
15A
0.5A
0.8A
3.0A
