Re: B181F22A on 9406-520

If it helps:
https://code400.com/forum/forum/iseries-programming-languages/freshers/14451-help-me-b181f22a-error

On Sat, Nov 15, 2025 at 11:56 AM David C. Shea <dshea@xxxxxxxxxxxx> wrote:

Some further information...



The last code on the display befoire te B181F22A was C1802000



After the box hangs, I got the codes off the front panel.

11:

A1003043



14:

H -80P4848 522A

And later I got this scrolling:

H787A.001.DPM0941-P1



9406-520 7450

0000000100000001



43:

A1003043

This one seems to indicate "service processor dump" according to


https://www.ibm.com/docs/en/power11/9856-22H?topic=functions-function-43-service-processor-dump



I video'd the SRC codes as it was booting up.

The last code was

C18020FF - termination complete

And in reverse chronological order:

C1802000 - starting termination

Prior was C1C3C218 - service processor polling spcn

C1C3C210,11,12,13,14,15,16,17,18,200, a bunch of these that all smell
like SPCN stuff.

C100911B - normal ipl performed

C1C3C213

C1C3C212

C1C3C211

C1C3C210

C1C3C20F

C1C3C20E

C1C3C20D

C1C3C20C

C1C3C20B

C1C3C20A

C1C3C209

C1C3C208

C1C3C207



So all this stuff seems to be SPCN related before it croaks.



What / where is the SPCN in this box? Model 520 7450 running v7r1. Could
this be a power supply problem, or is there a different component?

From this:

https://www.ibm.com/docs/en/power5?topic=locations-models-515-52x-285



I see 'connectors' for other SPCN, but I don't see a reference to "the
spcn" on this box / mobo.



There's this:



[cid:image001.png@01DC5623.38205780]





P1-C17 is a 'voltage regulator'. Could this be fried? Is this part of
spcn?







****************************************************

Go...FASTER! Without an Upgrade!

ARCTOOLS/400(tm) and ReorgWizard(tm)

www.arctools.com

DCSoftware,Inc.

Ph: 508.435.8243 x200

Fax:508.435.4498

Current versions:

AS400: ARCTOOLS v7.2.4, ReorgWizard v4.1.2, JDE Module v5.1.2, BPCS Module
v1, JDA Module v1

Oracle / SQL: ARCTOOLs v8, JDE Module v6

*****************************************************

This email, and any attachments, is intended only for the use by the
addressee(s) named herein and may contain legally privileged and/or
confidential information. It is the property of DCSoftware, Inc. If you are
not the intended recipient of this email, you are hereby notified that any
dissemination, distribution or copying of this email and/or any
attachments, and any use of this information contained herein, is strictly
prohibited. If you received this email in error, please notify us
immediately at 508.435.8243 and permanently delete the original and any
copy thereof. Thank you.





-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxxxxxxxx] On Behalf
Of David C. Shea
Sent: Friday, November 14, 2025 5:30 PM
To: 'midrange-l@xxxxxxxxxxxxxxxxxx' <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: B181F22A on 9406-520



I have a small 520 that I bought from IBM maybe 20-ish years ago. It's a
P05 processor group - a processor 7450 IIRC. It was turned off for 5 or 6
months, had been running fine prior.



Now it fails during power up with code B181 F22A. I don't think it even
got to the point of spinning the drives.



I connected a terminal and tried a manual IPL from the front panel. The
twinax card never even talks to the terminal... the cursor stays in the
upper left corner.



There is one thread on this list for this. I tried those suggestions. I
cleaned and reseated all the drives; cards; power supply; service processor
card. One person suggested replacing the service processor battery. No
joy. Replaced the service processor module. No joy. Pulled 2 of the 4
dimms (not sure if this will run on only 2). No joy. Swapped in the other
2 dimms. No joy. Put them all back. No joy.



Not sure what else to try. This box is set up for twinax as the console.
I've never tried HMC. If there's a quick tutorial as to how to do that,
I'm interested. Maybe HMC wakes up before twinax?



The only other replaceable items would be the FSIOP card, the Ethernet
card, and the twinax / comm controller.



I'll try booting off a DVD, and a SAVSYS backup tape, but it doesn't
appear that the scsi bus is even awake yet.



I don't see any swelled capacitors. Nothing burnt or charred that I can
see.



The power supply LEDs are all happy.



The three main fans are all happy. The power supply fan is happy. The
LEDs below the three fans show "system attention", otherwise all dark.



If it's the motherboard, my understanding is that the serial number lives
on the motherboard, so I'd be screwed since my LPPs won't be licensed.



Looking for a miracle...





****************************************************

Go...FASTER! Without an Upgrade!

ARCTOOLS/400(tm) and ReorgWizard(tm)

www.arctools.com<http://www.arctools.com/<http://www.arctools.com%3chttp:/
www.arctools.com/>>

DCSoftware,Inc.

Ph: 508.435.8243 x200

Fax:508.435.4498

Current versions:

AS400: ARCTOOLS v7.2.4, ReorgWizard v4.1.2, JDE Module v5.1.2, BPCS Module
v1, JDA Module v1 Oracle / SQL: ARCTOOLs v8, JDE Module v6

*****************************************************

This email, and any attachments, is intended only for the use by the
addressee(s) named herein and may contain legally privileged and/or
confidential information. It is the property of DCSoftware, Inc. If you are
not the intended recipient of this email, you are hereby notified that any
dissemination, distribution or copying of this email and/or any
attachments, and any use of this information contained herein, is strictly
prohibited. If you received this email in error, please notify us
immediately at 508.435.8243 and permanently delete the original and any
copy thereof. Thank you.



--

This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing
list To post a message email: MIDRANGE-L@xxxxxxxxxxxxxxxxxx<mailto:
MIDRANGE-L@xxxxxxxxxxxxxxxxxx> To subscribe, unsubscribe, or change list
options,

visit: https://lists.midrange.com/mailman/listinfo/midrange-l

or email: MIDRANGE-L-request@xxxxxxxxxxxxxxxxxx<mailto:
MIDRANGE-L-request@xxxxxxxxxxxxxxxxxx>

Before posting, please take a moment to review the archives at
https://archive.midrange.com/midrange-l.



Please contact support@xxxxxxxxxxxxxxxxxxxx<mailto:
support@xxxxxxxxxxxxxxxxxxxx> for any subscription related questions.


--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list
To post a message email: MIDRANGE-L@xxxxxxxxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: https://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxxxxxxxx
Before posting, please take a moment to review the archives
at https://archive.midrange.com/midrange-l.

Please contact support@xxxxxxxxxxxxxxxxxxxx for any subscription related
questions.