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Thunder i7525 (S2676)
3.8 – Connecting External Devices
Connecting external devices to the motherboard is an easy task. The standard devices you
should expect to plug into the motherboard are keyboards, mouse, and printer cables. The
following diagram will detail the ATX port stack for the following board:
Keyboard
Mouse
Besides being used primarily to connect printers, the Printer Port is also used for devices such as
Zip drive, some external CD-RW drives and or other external devices. More on the uncommon
side these days are the Serial Ports. They were primarily used to connect external modems, but
most modems today are using USB or are installed internally.
TIP: While the ports have been created to accept connectors in only one direction, make sure to
be careful when inserting connectors. At times, attaching connectors in the incorrect orientation
can damage, bend and or break the pins.
3.9 – Installing the Power Supply
There are two power connectors on this motherboard. By default, this motherboard requires that
you have an EPS12V SSI 3.5 power supply that has a split plane power rail. The minimum power
should not be less the 450 watts. This power supply provides 12v power planes to provide
maximum power to the CPUs. The power supply should have one 24-pin connector and one 8-pin
connector for motherboard power. Two onboard switching voltage regulators t h at are sourced by
separate +12V power rails provide each CPU's power. This +12V CPU power source is from the
onboard 8-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 8-pin square 12V power connector.
Thunder i7525 (S2676)
LPT1
SPDIF
COM1
25
http://www.tyan.com
Stacked USB x4
Firewire
RJ45
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