Thanks, I had just convinced myself of that part from one of their confusing tables. Adding to the confusion, we upgraded that system from a 520 to a 520 :) (POWER5 to POWER6)

The system firmware version detail page confirms that as well:
System i 520 (8203-E4A)
Sean Porterfield

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Chris Bipes
Sent: Thursday, October 11, 2012 15:56
To: 'Midrange Systems Technical Discussion'
Subject: RE: HMC software and V7R1

Well a E4A is a power 6, 520. I love how confusing IBM makes their model numbers. I liked the B10, C10, D10, E10, F10 series. We would be at L series if they just stayed the same.

Chris Bipes
Director of Information Services
CrossCheck, Inc.

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Porterfield, Sean
Sent: Thursday, October 11, 2012 12:40 PM
To: Midrange Systems Technical Discussion
Subject: RE: HMC software and V7R1

I looked through these links, the ones at and the ones in some more recent mailing list messages, but I can't for the life of me find where it says what is required for V7R1.

I see the table of HMC version to firmware version.

I think one of the links below took me to a page where I could enter Model=E4A, Machine Type=8203, Feature code=5577, but the table returned only lists V6R1 and V5R4.

The wiki page above has a section that doesn't mention V7R1. I clicked the links for the V6R1 and V5R4 pages but didn't see anywhere on them that mentioned the OS version.

I'm on V5R4M5, HMC V7R3.5.0, Firmware EL350_039.

I did find that shows my other system (9406-520) supports 7.1, so I'm "assuming" my newer E4A does, but it's not on the list at all. just shows POWER6 Power 520, 550, 560, 570, 595. Where is E4A?

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