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Tomcat i875P S5102
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.
J4
Winbond
J1
1
W83627HF
Chassis
COM2
FAN
PWR1
ATI
RAGE XL
JP2
1
8MB
SDRAM
USB3
PCI4
PCI3
USB4
USB2
1
EFI1
1
1
1
POWER FAN
1
J9
BT1
1
1
JP5
JP6
LED2
SATA3
SATA4
BIOS
PWR2
1
1
RAID-IDE J12
J20
SATA1
SATA2
1
1
1
1
1
J19
J22
JP4
J21
JP7
YOU MUST unplug the power supply before plugging in the 20-pin and 4-
NOTE
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.
LAN2
LAN1
J2 (VGA)
CN1 (COM1)
(Optional)
Intel
GbE LAN
(Optional)
GbE LAN
Intel
875P
S5102
PCI2
PCI1
Intel
ICH5
LED1
1
JP3
CMOS
PRI-IDE
J13
SEC-IDE
J15
http://www.tyan.com
USB1
KB-MO1
KB(Bottom)
Mouse(Top)
Intel
USB (Bottom)
LAN (Top)
Intel
10/100 LAN
PWR1
ATX 20-pin connects here
J11
1
NB - FAN
J6
1
CPU - FAN
2-23
Chapter 2: Board Installation
PWR2
PWR1
ATX12V 4-pin connects here
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