EXPANSION CHASSIS
6-6
PCIe2-2712 PCI Express Gen2 Expansion System User’s Manual
Revision 1.0, February 2015
Table 6-7. Headers
6.4
CHASSIS COOLING
Airflow in the PCIe2-2712 chassis is provided by four
77 CFM fans
located midship across the full
width of the chassis.
6.5
CHASSIS POWER
There are three different power supply options available for the PCIe2-2712. The 1250W option
provides ample power for the backplane and low-powered PCIe devices. The 2180W and 3240W
options provide N+1 redundancy, and are intended for high-powered, multi-GPU applications.
6.5.1
1250W Power Supply Option
The 4U chassis option is powered by a front-mounted 1250W single mini-ATX power supply. Power
entry is cabled to a receptacle located at the rear of the chassis. The supply outputs are modular,
providing the 24-pin ATX, 8-pin EPS and 4-pin EPS power connectors required by the PCIe2-462
backplane. The 1250W supply can be configured to also provide up to eight 6+2 pin PCIe power
connectors for use the GPUs and other high powered PCIe cards, as well as eleven Serial ATA power
connectors for disk drives and other peripheral devices.
Reference
Designator
Additional PCB
Label
Function
Notes
J26
“SSI
SSI Auxiliary Signal Connector
J27
“ENCL SW”
Chassis intrusion switch
connector
Z2
“PNL LED”
Front panel LED connector
J28
“THM1”
Thermistor connector
J29
“THM2”
Thermistor connector
J32
“THM2X”
Alternate thermistor connector
Z1
none
Monitor board I2C bus connector
Not populated
J30
none
Fan connector
J31
none
Fan connector
J33
none
Fan connector
Not populated
J34
none
Fan connector
J35
“PLX I2C”
PLX I2C monitor connector
Not populated
J36
“Altera JTAG”
Altera type JTAG connector
Not populated
J37
“SILINX JTAG”
Xilinx type JTAG connector
Not populated
