How to Update the Id PROM to Indicate that 8G of Memory is Installed

Asset ID:	1-71-2112177.1
Update Date:	2018-01-04
Keywords:

Solution Type Technical Instruction Sure

Solution 2112177.1 : How to Update the Id PROM to Indicate that 8G of Memory is Installed

Applies to:

Acme Packet 4500 - Version S-Cz7.2.0 to S-Cz7.2.0 [Release S-Cz7.0]
Information in this document applies to any platform.

Goal

When system is upgraded from 4GB to 8GB of memory, errors might occur in Diags.

An example of such an error would show in diagnostics:

018: I2C Processor Module Memory Size Test
  [DiagReportError Start]
  WED MAY 20 07:38:55 2015

  ERROR
  Routine Name: DiagSd3ComE_VerifyDdrSizeTest()
  Expected Comm Express module DDR3 Memory Size to be 4 GB.
  Actual Installed Memory is 8 GB in 2 Modules.

  Note: SD3 Mainboard IDPROM Options field specifies the
  expected DDR3 memory size (0=4GB, 1=8GB).
  Currently, the Options field is set to 0.

In this scenario, it will be necessary to update the ID PROM to indicate that 8G of memory is installed.

This procedure is described below.

Solution

The memory failure can be fixed by updating the Id PROM to indicate that 8G of memory is installed. In Diagnostics mode, use the "cpu2IdUpdate" command to update the "Options" field of the Id PROM to 1 which indicates 8G of memory.

To access Diagnostic mode, please refer to:

How to Execute Diagnostics on an NN4500 or NN3800 (Doc ID 1589482.1)

Here is an example of the "Options" field of the Id PROM equal to 0:

[diag_proc] -> id r mbd

Contents of Mainboard Id PROM

Oracle System Serial Number: NONE

Oracle Part Number: 0000000

Oracle Rev: 00

Acme Part Number: 002-0610-50

Serial Number: 151033005692

Acme Functional Rev: 5.02

Artwork Rev: 5.00

PCB Family Type: Mainboard - 0x11

ID: Mainboard

Format Rev: 10

Options: 0 <<<<<<<<<<<<<<<<<<<<<<<<

Manufacturer: Plexus Neenah

Week/Year: 33/2010

Sequence Number: 005692

Number of Programmable Devices: 5

Number of MAC Addresses: 16

Starting MAC Address: 00 08 25 04 43 f0

Boot PROM Base: 0x0000

CheckSum: 0x03ac

Programmable Devices:

---------------------

1. 004-0113-xx Rev: 1.02

2. 004-0087-xx Rev: 1.04

3. 004-0053-xx Rev: 3.02

4. 004-0054-xx Rev: 3.01

5. 004-0101-xx Rev: 1.01

And the test fails because 8G of memory is installed:

[diag_proc] -> mod i2cmbd

Module Name: i2cmbd

[diag_i2cmbd] -> t 18

Testing I2C Motherboard Bus Tests (i2cmbd)

018: I2C Processor Module Memory Size Test---------->

018: I2C Processor Module Memory Size Test

[DiagReportError Start]

FRI JUL 10 12:55:33 2015

ERROR

Routine Name: DiagSd3ComE_VerifyDdrSizeTest()

Expected Comm Express module DDR3 Memory Size to be 4 GB.

Actual Installed Memory is 8 GB in 2 Modules.

Note: SD3 Mainboard IDPROM Options field specifies the

expected DDR3 memory size (0=4GB, 1=8GB).

Currently, the Options field is set to 0.

[DiagReportError End]

[End of Errors]

018: I2C Processor Module Memory Size Test

failed

Then the "cpu2IdUpdate" command is executed and the test will pass:

[diag_i2cmbd] -> cpu2IdUpdate

Starting Id Update...

Reading Id PROM...

Writing Id PROM...

Contents of Mainboard Id PROM

Oracle System Serial Number: NONE

Oracle Part Number: 0000000

Oracle Rev: 00

Acme Part Number: 002-0610-50

Serial Number: 151033005692

Acme Functional Rev: 5.02

Artwork Rev: 5.00

PCB Family Type: Mainboard - 0x11

ID: Mainboard

Format Rev: 10

Options: 1 <<<<<<<<<<<<<<<<<<<<<<<<

Manufacturer: Plexus Neenah

Week/Year: 33/2010

Sequence Number: 005692

Number of Programmable Devices: 5

Number of MAC Addresses: 16

Starting MAC Address: 00 08 25 04 43 f0

Boot PROM Base: 0x0000

CheckSum: 0x03ad

Programmable Devices:

---------------------

1. 004-0113-xx Rev: 1.02

2. 004-0087-xx Rev: 1.04

3. 004-0053-xx Rev: 3.02

4. 004-0054-xx Rev: 3.01

5. 004-0101-xx Rev: 1.01

Id Update Complete.

here is an example of Testing the fix:

[diag_i2cmbd] -> t 18

Testing I2C Motherboard Bus Tests (i2cmbd)

018: I2C Processor Module Memory Size Test---------->passed

[diag_i2cmbd] ->

The cpu2IdUpdate command updates the mainboard Id PROM Options field to 1 which indicates that 8G of memory is installed on the CPU2 Module.

Note: In the case the CPU2 Module has 4G of memory installed, and this is the expected configuration for CPU2 Module, then the Options field should be 0. To set Options field to 0, issue the cpuIdUpdate command with -u option which will undo the 8G option setting.

Example:

[diag_proc] -> cpu2IdUpdate -u.

After the command has updated the mainboard Id PROM, it will display the Id PROM contents and the Options field will be 0.

References

<BUG:21351385> - 4500 HDD FORMATTED UNDER LINUX FAILS THE 4500 VXWORKS DIAGS
<BUG:19761986> - [PD00061034]4500 HDD FORMATTED UNDER LINUX FAILS THE 4500 VXWORKS DIAGS
<NOTE:1589482.1> - How to Execute Diagnostics on an NN4500 or NN3800

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