Nonvolatile Ram (Nvram); Removing The Nvram - Sun Microsystems SPARCclassic Service Manual

7. Reinstall any SBus cards (if applicable).
See "Replacing SBus Cards" on page 110" for installation details.
8. Refer to Chapter 7 to perform the following procedures:
4 Detaching the wrist strap
4 Closing the system unit
4 Reconnecting system components
9. Refer to Chapter 6" to turn the power on.

Nonvolatile RAM (NVRAM)

This section describes the removal and replacement procedures for the NVRAM chip.
If you replace the main logic board, you must transfer the NVRAM chip from the
faulty board to the replacement board.
Caution -
sensitive to static electricity. Ordinary amounts of static from your clothes or work
environment can destroy the NVRAM. Always wear a grounding strap when
handling the NVRAM.

Removing the NVRAM

To remove the NVRAM:
1. Prepare to work on the system as described in Chapter 6, and in Chapter 7.
Halt the system and verify that the power LED is not lit and that the fan is not
running. Then open the system unit, detach all peripherals, and attach a wrist
strap as described in "Attaching the Wrist Strap" on page 53.
Caution -
an AC wall outlet. This connection provides the ground path necessary to protect
internal system components from harmful static discharges. Inside the system unit,
be sure the power supply wiring harness is connected to the main logic board to
complete the ground.
SPARCclassic/SPARCclassic X/SPARCstation LX Service Manual ♦ Revision A, November 1993
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The NVRAM chip is a delicate electronic component that is extremely
The AC power cord should remain attached between the system unit and