UltraSPARC[R] III system boards falsely unsupported when power supply types are mixed in a Sun Fire[TM] 3800 chassis.

Asset ID:	1-72-1012650.1
Update Date:	2009-09-27
Keywords:

Solution Type Problem Resolution Sure

Solution 1012650.1 : UltraSPARC[R] III system boards falsely unsupported when power supply types are mixed in a Sun Fire[TM] 3800 chassis.

Related Items


Sun Fire 3800 Server

Related Categories


GCS>Sun Microsystems>Servers>Midrange Servers

PreviouslyPublishedAs
217400

Symptoms

Firmware version 5.20.0 and 5.20.1 are preventing system boards from powering on when A145 & A145E power supplies are mixed in a Sun Fire[TM] 3800 chassis.

Resolution

The new code introduced in firmware levels 5.20.0 and 5.20.1 was intended to prevent 1800MHz USIV+ boards from powering on if there was an illegal mix of power supplies in the Sun Fire system chassis. However, the code was too general and did not take into account that the SF3800, which does not support USIV+ boards, could legally mix the A145 and A145E power supplies in the same chassis. Currently, firmware versions 5.20.0 and 5.20.1 will prevent USIII boards (such as 750MHz) from powering on and will issue the following error...

v4u-3800c-sc0:SC> poweron sb2
Jun 21 01:03:47 3800c-sc0 Platform.SC:
WARNING: /N0/SB2 is not supported in this chassis
because the power supply types are mixed.

v4u-3800c-sc0:SC> showboards
[...]
PS0      On  A145E Power Supply    -    OK  <<---- Different PSU
PS1      On  A145  Power Supply    -    OK
PS2      On  A145  Power Supply    -    OK
[...]

The firmware will be amended to exclude the SF3800 from the mixed power supply rule and a fix included in version 5.20.2 which will be available on 25th August 2006.

Relief/Workaround

If an upgrade to 5.20.2 is not possible, ensure that all power supply types are the same by replacing as few power supplies as possible (only one power supply need ever be replaced).

Additional Information

Note:

You are only likely to find a legal mix of the A145 and A145E power supplies in the EMEA GEO. Other GEOs will have one type or the other but not both. If you discover a mix of A145 and A145E power supplies outside the EMEA GEO, log an escalation with PTS to obtain a resolution.

Product
Sun Fire 3800 Server

Internal Comments

See Bug ID: 6443248 for more details.

power, supply, type, mixed, A145, A145E, 3800, supported
Previously Published As
86760

Change History
Date: 2006-09-07
User Name: 95826
Action: Approved
Comment: - verified metadata
- changed review date to 2007-09-07
- checked for TM - 3 added + full product name
- audience changed to contract per FvF as per http://kmo.central/howto/content/voyager-contributor-standards.html
Publishing
Version: 3
Date: 2006-09-07
User Name: 95826
Action: Accept
Comment:
Version: 0
Date: 2006-09-07
User Name: 79977
Action: Approved
Comment: Reads nice and clear to me.

bj79977 x18191
Version: 0
Date: 2006-09-07
User Name: 79977
Action: Accept
Comment:
Version: 0
Date: 2006-09-07
User Name: 50775
Action: Approved
Comment: According to the online handbook, in the 3800 power section, a mix of A145 and A145E is permissible in EMEA only. Engineering agree that the mix of PSUs is legal.
-Paul-
Version: 0
Date: 2006-08-29
User Name: 50775
Action: Created
Comment:
Version: 0
Product_uuid
29d05214-0a18-11d6-92b2-a111614865b5|Sun Fire 3800 Server

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