ZCU102 Evaluation Board User Guide www.xilinx.com 104
UG1182 (v1.2) March 20, 2017
Chapter 3: Board Component Descriptions
Cooling Fan Connector
[Figure 2-1, callout 45]
The XCZU9EG U1 cooling fan connector is shown in Figure 3-39. The fan turns on when the
ZCU102 is powered up.
VADJ_FMC Power Rail
The ZCU102 evaluation board implements the ANSI/VITA 57.1 section 5.5.1 IPMI support
functionality. The power control of the V
ADJ_FMC
power rail is managed by the U41 system
controller. This rail powers both the FMC HPC0 (J5) and the FMC HPC1 (J4) V
ADJ
pins, as well
as the XCZU9EG HP banks 65, 66 and 67. The valid values of the V
ADJ_FMC
rail are 1.2V, 1.5V,
and 1.8V.
At power on, the system controller detects if an FMC module is connected to each interface:
• If no cards are attached to the FMC ports, the V
ADJ
voltage is set to 1.8V.
• When one FMC card is attached, its IIC EEPROM is read to find a V
ADJ
voltage
supported by both the ZCU102 board and the FMC module, within the available
choices of 1.8V, 1.5V, 1.2V, and 0.0V.
• When two FMC cards are attached with differing V
ADJ
requirements, V
ADJ_FMC
is set to
the lowest value compatible with the ZCU102 board and the FMC modules, within the
available choices of 1.8V, 1.5V, 1.2V, and 0.0V.
• If no valid information is found in an FMC card IIC EEPROM, the V
ADJ_FMC
rail is set to
0.0V.
X-Ref Target - Figure 3-39
Figure 3-39: ZCU102 12V Fan Header
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