![IBM iSeries Series Analyze Hardware Problems (System Reference Codes Download Page 255](http://html1.mh-extra.com/html/ibm/iseries-series/iseries-series_analyze-hardware-problems-system-reference-codes_4159947255.webp)
Reference Code
Description/Action Perform all actions before exchanging Failing Items
Failing Item
4501 to 4508, 450D
to 450F, 4511 to
4518, 451D to
451F, 4521 to 4528,
452D to 452F, 4531
to 4538, 453D to
453F
System Sub-Card(s)
45FF
System Sub-Card(s)
4600 to 4601
System Card(s) or BackPlane
7101 to 7108, 7140
to 7141
System bus error
7201, 7280
Bus expansion card
7281 to 7283
System bus error
7301
Bus expansion card
7302 to 7305
Optical link on Bus Expansion Adapter card failed
7306
Bus expansion card
7307 to 730A
Optical link on Bus Expansion Adapter card failed
730B
Bus expansion card
730C to 730F
Optical link on Bus Expansion Adapter card failed
73FF
Bus expansion card
7401
System Card(s) or BackPlane
7402
Bus expansion card
7404 to 7406
Optical link on Bus Expansion Adapter card failed
7408
Bus expansion card
7409 to 740D
Optical link on Bus Expansion Adapter card failed
8001
System Card(s) or BackPlane
8003
System Card(s) or BackPlane
8004 to 8005
System Sub-Card(s)
8009
System Card(s) or BackPlane
80A0
Service processor Licensed Internal Code
AJDGP01
80A1
Licensed Internal Code error
AJDG301
80A2
Service processor Licensed Internal Code
AJDGP01
80A4
Call your next level of support for assistance
80A6
Main storage failure
80E1
Service processor Licensed Internal Code
AJDGP01
8200
System Card(s) or BackPlane
8201 to 8208, 820D
to 820F, 8211 to
8218, 821D to
821F, 8221 to 8228,
822D to 822F, 8231
to 8238, 823D to
823F
System Sub-Card(s)
82FF
System Sub-Card(s)
8300, 8400, 8500
System Card(s) or BackPlane
B437
System Reference Codes
251