NIO16 Host Computer (Z840) Memory Replacement

Prerequisites

Table 5. Safety

TO PREVENT DAMAGE TO COMPONENTS WITHIN THE Z840, 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 Memory DIMM Modules in the Z840 computer.

Select one of the following methods to Power OFF the Operator Console:
1. If Applications are up, click on the Shut Down button and select Shutdown.
  
  The Operator Console monitor will display a 'Power Down' message when it is acceptable to power OFF the Operator Console.
2. If Applications are down, open a Unix Shell. Type: halt.
Power OFF the console at the front panel switch, and apply LOTO.
Remove the left side cover of console.

Refer to Replacement > Console > Console Cover Removal and Installation Procedure.
Remove the side access panel and pull out the latch to release the computer left side cover.

Figure 1. Side Access Panel Removal
Remove the following components from the host computer (Z840):
- Expansion Card Support
- Airflow Guide
  
  Figure 2. Z840 Airflow Guide and Expansion Card Support
Release two clamps both side of memory, and carefully pull the memory out of the slot.

Figure 3. Memory removal
Install the new Z840 memory, align the memory keyway with the slot key, and firmly seat the memory in the slot.
Reinstall all removed components, and reconnect any cables that have been disconnected.
Remove LOTO from console.

Reinstall the console covers.
Power ON the console and confirm the host computer does not display POST (Power On Self Test) errors.
Refer to System Scanning Test to confirm proper operation.