Ones Stop Systems
EB7-X8G2-RAS | 4
Install PCIe Cards
40
cat <./slot filename>/power
1 – Means the slot is powered;
0 – Means the slot does not have power
6.
In order to turn off power to a slot run:
echo 0 > <./slot filename>/power
After the PCIe card has been removed and replaced, turning on the power to the slot is done by running:
echo 1 > <./slot filename>/power
Note: Different Linux versions and platforms may perform differently. Also, older versions, such as Redhat ver. 4 or (2.4.x do not support
this feature).
4.8 The Alternate Function DIP Switch
The Alternate function DIP switch controls the following three functions: Hot Plug, Clock and power delivery behavior.
Actuator (1) Hot Plug
:
Turns the Hot Plug function ON and OFF. Its default position is Enabled in which case a Hot Plug controller supervises power delivery to the PCIe
slots.
Actuator (2): Local Clock:
Turns on a local clock generated by the chassis itself independent of that of the Host system. Its default position is Disabled, i.e. the system
Clock comes from the Host system (uplink).
Actuator (3): Slot Clock
Should be enabled only when a PCIe CPU card is placed in the 7
th
slot. That way a locally-generated clock can be supplied to the card.
Actuator (4): For OSS internal use.
