21
M
M
X
X
4
4
B
B
R
R
-
-
5
5
3
3
3
3
O
O
n
n
l
l
i
i
n
n
e
e
M
M
a
a
n
n
u
u
a
a
l
l
C
C
P
P
U
U
I
I
n
n
s
s
t
t
a
a
l
l
l
l
a
a
t
t
i
i
o
o
n
n
This motherboard supports Intel
®
Pentium 4 Socket 478 series CPU (Willamette / Northwood). Be careful of CPU orientation when
you plug it into CPU socket.
Note: These pictures are for example only; it may not exactly be the same motherboard.
2.
Locate Pin 1 in the socket and look for a black dot or cut edge on the
CPU upper interface. Match Pin 1 and cut edge, then insert the CPU into
the socket.
CPU pin 1 and
cut edge
CPU socket
Lever
1.
Pull up the CPU socket lever and
up to 90-degree angle.
CPU cut edge
