73
A
A
X
X
4
4
P
P
E
E
M
M
a
a
x
x
O
O
n
n
l
l
i
i
n
n
e
e
M
M
a
a
n
n
u
u
a
a
l
l
The pow r circuit of the CPU core voltage must be
Pentium III, or when overclocking). A typical CPU co
e
checked to ensure system stability for high speed CPUs (such as the new
re voltage is 2.0V, so a good design should control voltage between 1.860V
Note: This diagram for example only, it may not exactly be the same motherboard.
and 2.140V. That is, the transient must be below 280mV. Below is a timing diagram captured by a Digital Storage Scope, it
shows the voltage transient is only 143mv even when maximum 60 current is applied.
