Trinity i875P S5101
Chapter 2: Board Installation
2-24
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2.13 – Installing the Power Supply
There are two power connectors on this motherboard. By default, this motherboard requires
that you have an ATX12V power supply that has the standard ATX-style 20-pin connector, as
well as an additional 4-pin square connector. The CPU power is provided by the onboard
switching voltage regulator, which is sourced by +12V power. This +12V CPU power source is
from the onboard 4-pin square connector. The +12V power on the 20-pin ATX power
connector is for system board and separated from CPU +12V regulator power source.
Therefore, the CPU will not be powered if you do not connect the 4-pin square ATX 12V power
connector.
S5101
USB3
1
1
1
1
1
KB-MO1
USB2
CN2 (COM1)
CN3 (COM2)
CN4
(Parallel Port)
Power FAN
J14
PWR2
USB1
CN1
(Audio)
ALC650
SPDIF1
CPU FAN
J7
BIOS
J5
Intel
875P
Intel
ICH5
PCI2
PCI3
PCI4
PCI5
SA
TA
1
SA
TA
2
FDD
J
13
JP1
BT1
SE
C
-IDE
J
10
PR
I-ID
E
J
11
1
J4
W83627HF
CN18
Realtek
LAN
PCI6
USB4
1
VIA
VT6307
LED2
PCI1
RA
ID
-IDE
1
J
12
SA
TA
3
(O
pt
iona
l)
SA
TA
4
Chassis
FAN
1
CD_IN1
1
AUX_IN1
PDC20378
(Optional)
(O
pt
iona
l)
J2
1
J3
1
2
J6
(O
pt
iona
l)
1
J9
Intel
LAN
(Optional)
LED1
1
1
AGP
USB (Bottom)
LAN (Top)
USB (Bottom)
LAN (Top)Optional
KB(Bottom)
Mouse(Top)
PWR1
PWR2
Connector ATX 20-pin
connector here
Connector ATX12V 4-pin
connector here
PWR1
PWR2
NOTE
YOU MUST
unplug the power supply before plugging in the 20-pin and 4-pin
power cables to motherboard connectors.
2.14 – Finishing Up
Congratulations on making it this far! You’re finished setting up the hardware aspect of your
computer. Before closing up your chassis, make sure that all cables and wires are connected
properly, especially IDE cables and most importantly, jumpers. You may have difficulty
powering on your system if the motherboard jumpers are not set correctly.
In the rare circumstance that you have experienced difficulty, you can find help by asking your
vendor for assistance. If they are not available for assistance, please find setup information
and documentation online at our website or by
calling your vendor’s support line.