Sun Ultra 5 Workstation
 

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In this Document

Goal

Fix

Oracle Confidential INTERNAL - Do not distribute to customer (OracleConfidential).
Reason: Ultra 5 System Board is a FRU so Internal

Applies to:

Goal

 How to Remove and Replace an Ultra 5 Workstation System Board

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To report errors or request improvements on this procedure,
please Add a Comment on Doc ID: 1526973.1
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Fix

DISPATCH INSTRUCTIONS WHAT SKILLS DOES THE FIELD ENGINEER/ADMINISTRATOR NEED?:

Ultra 5 Workstation product training is desirable but not required

TIME ESTIMATE: 60 mins

TASK COMPLEXITY: 2

FIELD ENGINEER/ADMINISTRATOR INSTRUCTIONS:

PROBLEM OVERVIEW: Faulty System Board or included component on system board

WHAT STATE SHOULD THE SYSTEM BE IN TO BE READY TO PERFORM THE RESOLUTION ACTIVITY?:

A data backup is not a pre-requisite but is a wise precaution.
The customer should conduct an orderly software system shutdown.
System should be powered down.

WHAT ACTION DOES THE FIELD ENGINEER/ADMINISTRATOR NEED TO TAKE?:

Removing the Motherboard

1. Power off the system, remove the system cover, and attach an antistatic wrist strap.

Caution – Use proper ESD grounding techniques when handling components. Wear
an antistatic wrist strap and use an ESD-protected mat. Store ESD-sensitive
components in antistatic bags before placing them on any surface.

2. Remove the motherboard as follows:

a. Remove the power supply.

b. Remove the diskette drive (or optional secondary hard drive).

c. Disconnect the following from the motherboard:
 - Speaker cable connector (J18)
 - CPU fan cable connector (J19)
 - Power-on LED/software power-on cable connector (J17)
 - Diskette drive cable assembly (J16)
 - CD-ROM drive cable connector (J14)
 - Hard drive cable connector (J15)
 - Audio cable assembly (J9)
 - Serial/parallel cable assembly (J7/J8)

d. Remove the following from the system:

i. CPU module

ii. CPU fan assembly

iii. PCI card(s)

iv. PCI riser board

v. PCI riser board support

vi. NVRAM/TOD with carrier

Note – The NVRAM/TOD contains the system host identification (ID) and Ethernet
address. If the same ID and Ethernet address are to be used on the replacement
motherboard, remove the NVRAM/TOD from the motherboard and install it to the
new motherboard after motherboard installation.

vii. DIMMs

e. Remove the motherboard as follows:

i. Disconnect the external cables.

ii. Using a No. 2 Phillips screwdriver, remove the seven screws securing the
motherboard to the chassis (including the CPU standoff screw). Set the
screws aside.

Caution – Handle the motherboard by the back panel or by the edges only.

iii. Lift the motherboard from the chassis.

iv. Place the motherboard on an antistatic mat.

Note – It might be necessary to slide the motherboard toward the chassis front
before lifting it from the chassis.

Replacing the Motherboard

Note – Jumpers JP3 and JP4 can be set to either RS-423 or RS-232 serial interface.
The jumpers are preset for RS-423. RS-232 is required for digital telecommunication
within the European Community.

Using long-nose pliers, set the motherboard serial port jumpers JP3 and JP4

Jumper       Pins 1 + 2 Select         Pins 2 + 3 Select          Default Shunt on Pins
JP3                RS-232                        RS-423                           2-3
JP4                RS-232                        RS-423                           2-3

Note – Motherboard jumpers are identified as JP. Jumper pins are located
immediately adjacent to the part number.

2. Replace the motherboard as follows:

a. Replace the motherboard as follows:

Caution – Handle the motherboard by the back panel or the edges only.

i. Position the motherboard into the chassis.

ii. Using a No. 2 Phillips screwdriver, replace the seven screws securing the
motherboard to the chassis (including the CPU standoff screw).

iii. Connect the external cables.

b. Replace the following:

i. PCI riser board and support

ii. DIMMs

iii. NVRAM/TOD with carrier

iv. PCI card(s)

v. CPU fan assembly

vi. CPU module

c. Connect the following to the motherboard:

 - Speaker cable connector (J18)
 - CPU fan cable connector (J19)
 - Power-on LED/software power on cable connector (J17)
 - Diskette drive cable assembly (J16)
 - CD-ROM drive cable connector (J14)
 - Hard drive cable connector (J15)
 - Audio cable assembly (J9)
 - Serial/parallel cable assembly (J7/J8)

Note – Verify that the cable connectors are oriented properly by aligning the
connector keys.

3. Replace the power supply.

4. Replace the diskette drive (or optional secondary hard drive).

5. Detach the wrist strap, replace the system cover, and power on the system

6. Reset the #power-cycles NVRAM variable to zero as follows:

a. Press the keyboard Stop and A keys after the system banner appears on the
monitor.

b. At the ok prompt, type:

ok> setenv #power-cycles 0

c. Verify that the #power-cycles NVRAM variable increments each time the
system is power cycled.

Note – The Solaris operating environment Power Management software uses the
#power-cycles NVRAM variable to control the #power-cycles NVRAM variable to control the frequency of automatic system
shutdown (if automatic shutdown is enabled).

OBTAIN CUSTOMER ACCEPTANCE WHAT ACTION DOES THE FIELD ENGINEER/ADMINISTRATOR NEED TO TAKE TO
RETURN THE SYSTEM TO AN OPERATIONAL STATE:

Boot the system and verify all components are working properly by verifying POST has completed. Logon to root account after booted and running the command # prtdiag ensuring all components present.

PARTS NOTE:

https://support.us.oracle.com/handbook_internal/Systems/U5/components.html#SystemBoard

https://support.oracle.com/handbook_private/Systems/U5/components.html#SystemBoard

REFERENCE INFORMATION:

Sun Ultra 5 Service Manual (805-7763-12): http://docs.oracle.com/cd/E19127-01/ultra5.ws/index.html

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