Figure 33: Power Cord Numbering; Figure 34: Power Supply - Mellanox Technologies MIS5300 Hardware Installation Manual

InfiniBand Switch Platform Hardware User Manual
2. Remove the power cord from the power supply unit. Note which power cord it is
according to the AC numbering.
AC1
3. On the spine side of the chassis, remove the cover to the power supply unit for the
non-working PSU. Odd numbered PSUs are on the left side and even numbered PSUs
are on the right side facing the spines.There are four phillips head screws for the
cover plate.
Handle
4. Grasping the handle with one hand, push the black latch release while pulling the
handle outward. As the PSU unseats, the PSU status indicators will turn off.
5. Remove the PSU.
 To insert a PSU:
1. Make sure the mating connector of the new unit is free of any dirt and/or obstacles.
2. Insert the PSU by sliding it into the opening until a slight resistance is felt.
3. Continue pressing the PSU until it seats completely. The latch will snap into place
confirming the proper installation.
4. Insert the power cord into the supply connector on the other side of the chassis.
5. Replace the cover over the PSUs.
Mellanox Technologies

Figure 33: Power Cord Numbering

AC2 AC3

Figure 34: Power Supply

OK
The green indicators should light. If not, extract the PSU and re-insert it again.
AC4 AC5
DC AC
FAIL OK
AC6
Latch
43