One Stop Systems
ExpressBox 2200 | 4 Additional Technical Information
46
4.5 Backplane / Expansion board
Parts overview of the expansion board / backplane.
Item
Description
1
Expansion card slot
Slot#3, designated for expansion card only.
2
PCIe switch & heat sink
This is the main chip / component. Utilized a point-to-point serial interconnect standard protocol,
connects a single PCI Express port from a processor or chipset to multiple end-points. A PCI express
switch is a device that switches PCI express (PCIe) buses on motherboards of computers or similar
applications. PCIe is a switch-based technology used to interconnect a large number of peripheral devices
to a processor system.
3
3 PCIe slots
All three slots are x8 electrically, x16 mechanically. It can accommodate x1, x2, x4, and x8 and x16-form
factor PCIe cards.
4
LINK UP Led
Displays the correct LED when host computer and expansion are linked up or connected.
5
Fan Control switch
This feature
is not
available with this model. Allows you to control the fan speed.
6
Power & Standby LEDs
Displays the correct LEDs when power is good, when the expansion unit is powered up correctly. Standby
LEDs: Signifies that there is power going to the board but the device is switched off or not performing
their primary function.
7
Serial numbers
Identification number for the expansion board
8
Power Button header
Connector for the front power LED
9
Fan Power connectors
Connector for the front fan
10
12 v AUX
To allow for additional power from the supply to the motherboard, Intel modified the ATX specification to
add a second auxiliary power connector for high power-drawing ATX motherboards and 250-watt or
higher rated supplies.
The criteria are such that, if the motherboard could draw more than 18 A of +3.3 V power or more than
24 A of +5 V power, the auxiliary connector is required to carry the additional load. These higher levels of
power are needed in systems using 250- or 300-watt or greater supplies.
11
ATX Main connector
Power Supply main connector
