600-2705 PCI Express Expansion System User’s Manual
3-1
Revision 1.0, February 2008
CHAPTER 3
EXPANSION SYSTEM OPERATION
3.1
600-2705 CHASSIS
The PCIe-414 is installed into a seven slot rack mountable chassis. The chassis provides access to three
x8 PCI Express slots and four x4 PCI Express slots. All slots can accommodate standard height and full
length PCI Express add-in cards. The chassis also contains three drive bays that may be used by the user
to install peripheral devices for their particular application. There are several ATX four pin peripheral
power connectors available from the power supply.
The chassis contains a 650W power supply. Tables 3-1 through 3-3 show the power consumption for the
Cyclone Microsystems boards and the power supplied to the PCI Express slots. Note that the PCIe-409
is installed in and powered by the host supply. Consequently, the PCIe-409 should not be included as a
component of the Expansion Chassis power budget. In a fully populated system, with each PCI Express
add-in card drawing 25W, there is an additional 70W of +5V and 100W of +12V available for use via
the peripheral power connectors.
3.2
POWER CONSIDERATIONS
Table 3-1. PCIe- 414 Power Requirements
Table 3-2. PCIe- 409 Power Requirements
*The PCIe-409 does not use +12V
Table 3-3. Power Supplied Per PCIe Slot
* Required by the PCI Express Card Electromechanical Specification Revision 1.0a. Note that the total
power for each PCIe shall not exceed 25W.
Airflow in the 600-2705 chassis is provided by one 120 CFM located at the front of the chassis and two
59 CFM fans located at the rear of the chassis.
Voltage
Current Typical
Current Maximum
+3.3V
0.33 Amps
0.40 Amps
+5V
1.03 Amps
1.56 Amps
+12V
0.02 Amps
0.04 Amps
Voltage
Current Typical
Current Maximum
+3.3V
0.55 Amps
0.77 Amps
+12V
0 Amps
0 Amps
Voltage
Current Maximum
Voltage Tolerance
+3.3V
3.0 Amps
+/- 9%
+12V
2.1 Amps
+/- 8%
