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In some cases, you might be asked to replace a faulty power supply unit (PSU) on an OCA. These same steps might be required in order to do a hard reset of the system. Follow the steps and videos below.


Performing maintenance on electronic equipment can be dangerous and should only be done by qualified technicians.

Before you begin

  1. Before you do any maintenance on an OCA, read and follow the guidelines described in this article: OCA Maintenance Policies
  2. Power down the OCA completely by following the instructions in this article.
  3. Caution: Carefully remove power from the PSU.

Removing a PSU

Follow the steps in the videos to remove an existing PSU.

2U Storage OCA


1U Global OCA

Note: 1U Globals have two PSUs on either side of the front of the chassis. The video shows the PSU on the right. Complete similar steps to remove the PSU on the left.

Inserting a PSU

Follow the steps in the videos to insert a new PSU.

2U Storage OCA

1U Global OCA

Again, follow similar steps to insert the PSU on the left.

Next steps

After the PSUs are reseated, you can proceed to reconnect power to the PSU and power the OCA on again.


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