M
M
X
X
4
4
6
6
-
-
5
5
3
3
3
3
V
V
/
/
M
M
X
X
4
4
6
6
-
-
5
5
3
3
3
3
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
O
O
v
v
e
e
r
r
-
-
c
c
u
u
r
r
r
r
e
e
n
n
t
t
P
P
r
r
o
o
t
t
e
e
c
c
t
t
i
i
o
o
n
n
O
v
v
e
e
r
r
-
-
c
c
u
u
r
r
r
r
e
e
n
n
t
t
P
P
r
r
o
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t
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c
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o
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n
n
The Over Current Protection is a popular implementation on ATX 3.3V/5V/12V switching power supply. However, the new generation CPU
uses different voltage with a regulator to transfer 12V to CPU voltage (for example, 2.0V), and thus makes 5V over current protection
useless. This motherboard is with switching regulator onboard supporting CPU over-current protection; in conjunction with 3.3V/5V/12V
power supply provide the full line over-current protection.
The Over Current Protection is a popular implementation on ATX 3.3V/5V/12V switching power supply. However, the new generation CPU
uses different voltage with a regulator to transfer 12V to CPU voltage (for example, 2.0V), and thus makes 5V over current protection
useless. This motherboard is with switching regulator onboard supporting CPU over-current protection; in conjunction with 3.3V/5V/12V
power supply provide the full line over-current protection.
12V (Protected by power supply)
Onboard
Power
Regulator
3.3V (Protected by power supply)
5V (Protected by power supply)
ATX Switching Power Supply
Over-Current
Protection
Circuit
CPU Core Voltage
Note:
Although we have implemented protection circuit and tried to prevent any human operating
mistake, certain risks might still happen when CPU, memory, HDD or add-on cards installed on this
motherboard is damaged due to component failure, human operating error or other unknown natural
reasons.
AOpen cannot guarantee that the protection circuit will always work perfectly.
53
