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When disconnecting the auxiliary power cable, it is important to push it away
from the PCB side of the U5303A in order to disengage the friction lock. Failure to
do this could cause the module side of the connector to be withdrawn at the
same time thus damaging it.
Note that the U5303A is optionally supplied with a card retainer (included if ordered
as U5303A-001, or available separately by ordering stand alone extender (please
contact support for the reference)) which is able to pick up on slots at the end the full-
length PCIe slot and provide additional support for the module. Use of this card
retainer is highly recommended, in particular when the PC motherboard is oriented
vertically. However if your PC hardware does not provide end slots, the card retainer
may be removed from the module.
It is also possible to reverse the orientation of the fan assembly in the case that two
modules must be placed in adjacent slots, or other PC hardware obstructs the fitting.
These three procedures are detailed below.
Fitting the module with the optional card retainer into your PC
1. Loosen (but do not remove) the screw (A) holding the rear card retainer, and
slide it towards the fans.
2. Insert the module into the PCIe slot of the PC, ensuring that it is fully seated
into the PCIe bus connector.
3. Fix the module to the PC either by fitting a screw, or by using a method com-
pliant with your PC model.
4. Fully extend the card retainer and ensure that it is inside the PC chassis support
slot.
5. Tighten the screw (A) (0.5 Nm torque).
If the PC is a T5810, the PCIe-card retention (support slots) has to be removed
and adapted by removing two of the extension blocks before inserting the
U5303A. For details, please contact support www.keysight.com/find/assist.
Keysight U5303A Startup Guide
Step 4: Install the Module
15
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