NIO64 Host Computer (Z820) Power Supply Replacement

Prerequisites

Table 5. Safety

TO PREVENT DAMAGE TO COMPONENTS WITHIN THE Z820, OBSERVE THE FOLLOWING ESD PRECAUTIONS:
- WORK ON A STATIC-FREE MAT.
- WEAR A STATIC STRAP TO ENSURE THAT ANY ACCUMULATED ELECTROSTATIC CHARGE IS DISCHARGED FROM YOUR BODY TO GROUND.
- CREATE A COMMON GROUND FOR THE EQUIPMENT YOU ARE WORKING ON BY CONNECTING THE STATIC-FREE MAT, STATIC STRAP AND PERIPHERAL UNITS TO THAT PIECE OF EQUIPMENT.
FOR FURTHER INFORMATION REGARDING ESD PROTECTION, REFER TO THE SAFETY CHAPTER IN THIS PUBLICATION.

IN ORDER TO MEET EMC REQUIREMENTS, THE CHASSIS MODULES MUST BE PROPERLY INSTALLED AFTER SERVICING. CHECK THAT THE MODULES ARE MOUNTED FIRMLY IN PLACE AND LOCKED DOWN WHERE APPLICABLE.

FOLLOW ALL REQUIRED SAFETY AND PPE PROCEDURES CUSTOMARY FOR YOUR ORGANIZATION WHEN WORKING ON THIS PRODUCT.

Overview

This procedure shall be followed when replacing the Power Supply in the Z820 computer on a NIO64 Console.

Shutdown system. Select one of the following methods to Power OFF the Console:
- If Applications are up, click on the [Shut Down] button on desktop display and select [Shutdown].
- If Applications are down, open a Terminal Window. Type: halt , then press ENTER.
- When halt command has finished, power Off the console at the front panel switch.
Apply LOTO. See Equipment Service - Lockout-Tagout-PPE procedure.
Remove Front and Top covers from NIO64 console.

Refer to Replacement → Console (RIO) → Console Cover Removal and Installation.
Remove the Z820 computer from the NIO64 console chassis.

Refer to Replacement → Console (NIO64) → HP Host Computer Z820 Replacement

Open the Z820 computer side access panel.
Locate Power Supply FRU by referencing the Illustration below.

Figure 1. Z820 Component Location
Disconnect a power cable from the power supply.
Pull out the old power supply from the Host computer, replace the z820 power supply with new one.

Figure 2. Power Supply Removal
Connect the power cable to the power supply.
Reinstall the side access panel.

Fully slide the Z820 computer back into the console chassis, until mounting brackets are flush against the console chassis.
Install and torque the four (4) 3mm socket cap screws that mount the Z820 computer in the NIO64 console.

note:
Torque each the for (4) 3mm socket cap mounting screws to:

2.3 N-m 1.7 lb-ft 20.4 lb-in 23.5 Kg-cm
Reconnect all cables removed earlier to the Z820 computer.
Remove LOTO on console.

Confirm Host computer powers up when console power is turned on.
Perform the Functional Checks → System Scanning Test instructions from the procedure list.
Install console covers.

Refer to Replacement → Console (RIO) → Console Cover Removal and Installation Procedure.