The following paragraph does not apply to the United Kingdom or any country where such
provisions are inconsistent with local law: THIS PUBLICATION IS PRINTED “AS IS” WITHOUT
WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some
states do not allow disclaimer of express or implied warranties in certain transactions; therefore, this
statement may not apply to you.
This publication could include technical inaccuracies or typographical errors. Changes are periodically made
to the information herein; these changes will be incorporated in new editions of the publication. The
manufacturer may make improvements and/or changes in the product(s) and/or program(s) described in this
publication at any time, without notice.
It is possible that this publication may contain reference to, or information about, products (machines and
programs), programming, or services that are not announced in your country. Such references or
information must not be construed to mean that such products, programming, or services will be offered in
your country. Any reference to a licensed program in this publication is not intended to state or imply that
you can use only the licensed program indicated. You can use any functionally equivalent program instead.
AIX is a registered trademark of International Business Machines.
Medeco is a trademark of the Medeco Company.
Micro Channel is a trademark of International Business Machines.
SystemGuard is a trademark of International Business Machines.
Velcro is a trademark of Velcro Industries.
7015 Model R30, R40, and R50 CPU Enclosure Installation and Service
Copyright International Business Machines Corporation, 1994, 1997. All rights reserved.
Note to US Government Users – Documentation and programs related to restricted rights – Use,
duplication, or disclosure is subject to the restrictions set forth in the GSA ADP Schedule Contract.
The following statement applies to this product. The statement for other products intended
for use with this product appears in their accompanying manuals.
Federal Communications Commission (FCC) Statement
Note: This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his
own expense.
Properly shielded and grounded cables and connectors must be used in order to meet FCC
emission limits. Neither the provider nor the manufacturer are responsible for any radio or
television interference caused by using other than recommended cables and connectors or
by unauthorized changes or modifications to this equipment. Unauthorized changes or
modifications could void the user’s authority to operate the equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) this device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired
operation.
United Kingdom Telecommunications Safety Requirements
This equipment is manufactured to the International Safety Standard EN60950 and as such
is approved in the UK under the General Approval Number NS/G/1234/J/100003 for indirect
connection to the public telecommunication network.
The network adapter interfaces housed within this equipment are approved separately, each
one having its own independent approval number. These interface adapters, supplied by the
manufacturer, do not use or contain excessive voltages. An excessive voltage is one which
exceeds 70.7 V peak ac or 120 V dc. They interface with this equipment using Safe Extra
Low Voltages only. In order to maintain the separate (independent) approval of the
manufacturer’s adapters, it is essential that other optional cards, not supplied by the
manufacturer, do not use main voltages or any other excessive voltages. Seek advice from a
competent engineer before installing other adapters not supplied by the manufacturer.
European Union (EU) Statement
This product is in conformity with the protection requirements of EU Council Directive
89/336/EEC on the approximation of the laws of the Member States relating to
electromagnetic compatibility .
Neither the provider nor the manufacturer can accept responsibility for any failure to satisfy
the protection requirements resulting from a non-recommended modification of the product,
including the fitting of option cards not supplied by the manufacturer.
This product has been tested and found to comply with the limits for Class A Information
Technology Equipment according to CISPR 22 / European Standard EN 55022. The limits
Preface
vii
for Class A equipment were derived for commercial and industrial environments to provide
reasonable protection against interference with licensed communication equipment.
Attention: This is a Class A product. In a domestic environment this product may cause
radio interference in which case the user may be required to take adequate measures.
International Electrotechnical Commission (IEC) Statement
This product has been designed and built to comply with IEC Standard 950.
Avis de conformité aux normes du ministère des Communications du
Canada
Cet appareil numérique de la classe A respecte toutes les exigences du Réglement sur le
matériel brouilleur du Canada.
Canadian Department of Communications Compliance Statement
This Class A digital apparatus meets the requirements of the Canadian
Interference-Causing Equipment Regulations.
VCCI Statement
viii
The following is a summary of the VCCI Japanese statement in the box above.
This equipment is in the Class 1 category (information equipment to be used in
commercial and/or industrial areas) and conforms to the standards set by the Voluntary Control Council For Interference by Data Processing Equipment and Electronic Office Machines aimed at preventing radio interference in commercial and/
or industrial areas.
Consequently , when used in a residential area or in an adjacent area thereto, radio
interference may be caused to radios and TV receivers, etc.
Read the instructions for correct handling. VCCI–1.
Service Guide
Radio Protection for Germany
Dieses Gerät ist berechtigt in Übereinstimmung mit dem deutschen EMVG vom 9.Nov.92
das EG-Konformitätszeichen zu führen.
Der Aussteller der Konformitätserklärung ist die IBM Germany.
Dieses Gerät erfüllt die Bedingungen der EN 55022 Klasse A. Für diese Klasse von Geräten
gilt folgende Bestimmung nach dem EMVG:
Geräte dürfen an Orten, für die sie nicht ausreichend entstört sind, nur mit besonderer
Genehmigung des Bundesministers für Post und Telekommunikation oder des Bundesamtes
für Post und Telekommunikation betrieben werden. Die Genehmigung wird erteilt, wenn
keine elektromagnetischen Störungen zu erwarten sind.
(Auszug aus dem EMVG vom 9.Nov.92, Para.3, Abs.4)
Hinweis:
Dieses Genehmigungsverfahren ist von der Deutschen Bundespost noch nicht veröffentlicht
worden.
Preface
ix
x
Service Guide
Safety Notices
Note: For a translation of danger and caution notices, see the
Information
manual, form number SA23-2652.
Definitions of Safety Notices
A
danger
or serious personal injury.
A
caution
moderate or minor personal injury.
notice indicates the presence of a hazard that has the potential of causing death
3-1520-1
4-3
4-4
4-6
4-7
4-10
4-12
4-73
5–2
notice indicates the presence of a hazard that has the potential of causing
3-1520-1
4-4
4-7
4-10
4-12
4-18
4-21
5–1
5–2
Danger
System Unit Safety
notices appear on the following pages:
Caution
notices appear on the following pages:
An
attention
system, or data.
notice indicates an action that could cause damage to a program, device,
Safety Notice for Servicing
For safety checks when servicing, refer to Chapter 4, “Removal and Replacement
Procedures.”
Preface
xi
Laser Safety Information
The optical drive in this system unit is a laser product. The optical drive has a label that
identifies its classification. The label, located on the drive, is shown below.
CLASS 1 LASER PRODUCT
LASER KLASSE 1
LUOKAN 1 LASERLAITE
APPAREIL A LASER DE CLASSE 1
TO IEC 825:1984 CENELEC EN 60 825:1991
The optical drive in this system unit is certified in the U.S. to conform to the requirements of
the Department of Health and Human Services 21 Code of Federal Regulations (DHHS 21
CFR) Subchapter J for Class 1 laser products. Elsewhere, the drive is certified to conform to
the requirements of the International Electrotechnical Commission (IEC) 825 (1st edition
1984) and CENELEC EN 60 825:1991 for Class 1 laser products.
CAUTION:
A class 3 laser is contained in the device. Do not attempt to operate the drive while it
is disassembled. Do not attempt to open the covers of the drive as it is not
serviceable and is to be replaced as a unit.
Class 1 laser products are not considered to be hazardous. The optical drive contains
internally a Class 3B gallium-arsenide laser that is nominally 30 milliwatts at 830
nanometers. The design incorporates a combination of enclosures, electronics, and
redundant interlocks such that there is no exposure to laser radiation above a Class 1 level
during normal operation, user maintenance, or servicing conditions.
xii
Service Guide
About This Book
This book provides maintenance information that is specific to the 7015 Models R30, R40,
and R50 CPU Enclosures. It also contains maintenance analysis procedures (MAPs) that
are not common to other systems.
MAPs that are common to all systems are contained in the
Channel Bus Systems.
This book is used by the service technician to repair system failures. It is assumed in this
book that the service technician has had training on the 7015 systems.
ISO 9000
ISO 9000 registered quality systems were used in the development and manufacturing of
this product.
Related Publications
The
Diagnostic Information For Micro Channel Bus Systems
contains reference information about adapters and devices, checkout procedures for
problem determination, system verification, using the diagnostics, and cabling for the system
units. This manual also contains the removal-and-replacement procedures for the logic
boards on the disk drives and cabling information that can be used to isolate problems with
customer cabling.
The
7015 Model R00 Rack Installation and Service Guide
contains information about installing the rack, servicing the power components within the
rack, and switching the CPU drawer on and off.
The
7015 Model R30, R40, and R50 CPU Enclosure Operator Guide
SA23-2742, contains information about the controls and features of the system unit.
System Unit Safety Information
The
of danger and caution notices.
Diagnostic Information For Micro
, order number SA23-2765,
, order number SA23-2744,
, order number
manual, order number SA23-2652, contains translations
The
7135 RAIDiant Array: Operator Guide
about operator controls and features on the SCSI disk unit.
The
7135 RAIDiant Array: Installation and Service Guide
contains information on the SCSI disk unit.
, order number GA33-3251, provides information
, order number SY33-0181,
Preface
xiii
xiv
Service Guide
Chapter 1. Reference Information
This chapter contains information about part locations; connector locations; slot locations on
the system planar, I/O planars; data and power flow; and CPU enclosure specifications.
Description
7015 CPU Enclosures equipped with a typical configuration contain the following:
• System planar containing memory cards, CPU cards, and an I/O card
• Two I/O planars containing 16 Micro Channel adapter slots
• System interface board containing a parallel port, three serial ports, and two RS485 ports,
and one battery backup unit port
• Power supply
• Cooling unit or optional second power supply
• Operator panel with 1.44MB 3.5-inch diskette drive
• CD-ROM drive
• Media position for optional media devices: 5.0GB 8-mm tape drive, 4.0GB 4 mm tape
drive, or 1/4-inch tape drive
• A SCSI Disk drive with a position for an optional second disk drive.
Other configurations of the CPU enclosure contain additional devices or adapters.
Reference Information
1-1
CPU Enclosure Locations
Front View with Bezel
Bezel Door
Front View without Bezel
Front Access
Plate
Optional
Media
Position
CD-ROM Drive
Operator
Panel
3.5-Inch
Diskette
Drive
1-2
Service Guide
Front View without Front Access Plate
Disk Drive
(R50 can
have two)
Lateral
Planar 1
Card
Optional
Media
Position
I/O Card Slot
CD-ROM DriveOperator
Panel
Memory Card Slots (4)CPU Card Slots (4)
3.5-Inch
Diskette
Drive
Media
Module
CPU
Module
Note: The R50 CPU enclosure frame includes card guides not shown in the figure above.
Operator Panel
Power On
Light
Reset/Scroll
Button
Power
Button
3.5-Inch Diskette Drive
In-Use Light
Operator Panel Display
3.5-Inch
Diskette Drive
Key Mode Switch
Diskette
Eject
Button
Normal
Secure
Service
Reference Information
1-3
Rear Connector Locations with Rear Access Plate Removed
Power
Cooling Unit or
2nd Power Supply
Fan 4Fan 3Fan 2Fan 1
Power
Light
Cooling Unit or 2nd
Power Supply Fans
Supply
Fans
Power
Light
Power Supply
Battery
Backup Unit
Connector
RS485 (In)
RS485 (Out)
Parallel
Port
Serial
Port 1
Serial
Port 2
Serial
Port 3
1/1
1/3
Serial Ports
1/5
1/4
Note: Fans 3 and 4 above are in reversed positions if a cooling unit is installed instead of
Serial Ports 1 and 2 are reserved for maintenance purposes. Serial Port 3 is used to
manage an optional external uninterruptible power supply (UPS). Serial Ports 1, 2 and 3 can
also be used as async terminal lines.
1/7
1/6
an optional power supply.
0/1
1/8
0/2
0/3
Adapter LocationsAdapter Locations
0/4
0/5
0/6
0/7
0/81/2
1-4
Service Guide
CPU Module (Top View with Top Cover Removed)
R30 and R40
I/O Card
Docking
Screw
CPU Card
Slots (4)
Memory Card
Slots (4)
Lateral Planar 1
Card
System Planar
Fan 08
CPU Module Fans
Fan 09
Fan 10
R50
I/O Card
Docking
Screw
CPU Card
Slots (4)
Memory Card
Slots (4)
Lateral Planar 1
Card
Fan 08
CPU Module Fans
Fan 09
Fan 10
System Planar
Reference Information
1-5
I/O Module (Top View with Rear Access Plate Removed)
Power Supply
Power Light
Power
Supply
Cooling Unit or
2nd Power Supply
Power
Supply
Power
Light
Cooling Unit
or 2nd Power
Supply Fans
Power
Supply
Fans
Battery
Backup Unit
Connector
RS485
Connectors
(In)
RS485
Connectors
(Out)
Parallel Port
Adapter
Locations
Rear of CPU Enclosure
Serial Port 1
Serial Port 2
Serial Port 3
1-6
Service Guide
Media Module
Optional
Disk Drive
(R50)
Disk Drive
CD-ROM Drive
Optional Media Position
Media Module Fans (3)Fan 6
Fan 5
Fan 7
Operator Panel
3.5-Inch Diskette Drive
Note: The Model R50 CPU Enclosure has a bay for an optional disk drive located above
the standard disk drive bay.
Power Supply or Cooling Unit
Power
Interface
Connectors
Mounting Slide Rails
Power Light (Only
on Power Supply)
Power Supply
Power Cord (Only
on Power Supply)
Fans
Reference Information
1-7
System Planar Connector Locations (Top View)
R30 and R40
Lateral
Planar 1
Interface
Connectors
I/O Card
Slot
SRQPDCBA
CPU Card
Slots
Memory
Card Slots
R50
Lateral
Planar 1
Interface
Connectors
I/O Card
Slot
SRQP D C B A
CPU Card
Slots
Memory
Card Slots
1-8
Service Guide
Memory Cards
There are four types of memory card available for use with the R30, R40 or R50 systems.
They are the MRX card, the RLX card, the NFX card, and the SF5 card.
The base MRX memory card looks like the following figure.
Memory cards must be installed starting from memory slot A. Additional memory cards must
be installed using memory slot B first, then C then D.
The system can be upgraded by installing up to three additional memory cards.
Two kinds of memory modules can be installed on memory cards:
• 8MB memory modules which use 4Mb technology.
• 32MB memory modules which use 16Mb technology.
Bank 1
Bank 1
Bank 0
Bank 0
Base MRX Memory Card
5
.
.
.
8
1
4
.
.
.
Bank 1
Bank 1
Bank 0
Bank 0
Each memory memory module looks like the following figure.
According to the type of memory modules installed, on the memory cards, the total memory
size is:
• If it has eight 8MB memory modules, the memory card has 64MB memory.
• If it has eight 32MB memory modules, the memory card has 256MB memory.
Reference Information
1-9
The next three types of memory cards are shown below. A two bank (8 slots) RLX card, a
four bank (16 slots) NFX card, and a four bank (16 slots) SF5 card. Each bank can house
four memory module kits composed of four memory memory modules each, which comply
with the JEDEC standard for 168 pin, ECC, 60 ns, 5 volt memory modules.
Bank 1
Bank 1
Bank 0
Bank 0
Two Bank RLX
Memory Card
Bank 1
5
.
.
.
8
1
.
Bank 1
.
Bank 0
.
Bank 0
4
Bank 2
Bank 1
Bank 2
Bank 1
Bank 3
Bank 0
Bank 3
Bank 0
Four Bank NFX
Memory Card
Bank 2
Bank 1
Bank 2
Bank 1
Bank 3
Bank 0
Bank 3
Bank 0
9
.
.
.
16
SF5
Memory Card
The figure below shows a standard memory module.
9
.
.
.
16
Bank 2
1
Bank 1
.
Bank 2
Bank 1
.
Bank 3
.
Bank 0
8
Bank 3
Bank 0
Bank 2
1
Bank 1
Bank 2
.
Bank 1
.
Bank 3
.
Bank 0
8
Bank 3
Bank 0
1-10
The following table indicates the memory module kits supported by RLX, NFX, and SF5
cards for R30, R40, or R50 systems, and it also shows the resulting memory capacity for
each kit:
Name of the Kit
MM324 modules of 8MB each32MB memory
MM644 modules of 16MB each64MB memory
MM1284 modules of 32MB each128MB memory
MM2564 modules of 64MB each256MB memory
The maximum memory reachable with this kind of memory card is equal to 1024MB, due to
the fact that up to four of the above indicated kits can be installed on the memory card.
It is not possible to install on the same RLX, NFX, or SF5 card memory modules belonging
to different kits.
Service Guide
Description of the KitResulting Memory Capacity
According to both the size and the number of memory module kits installed on the RLX,
NFX, or SF5 cards, these can be divided into the following models:
• NF64 board, based on 4M bit technology, which gives 64MB memory. It houses two
MM32 memory module kits.
• NF128 board, based on 4M bit technology, which gives 128MB memory. It houses two
MM64 memory module kits.
• NF256 board, based on 16M bit technology, which gives 256MB memory. It houses two
MM128 memory module kits.
• NF512 board, based on 16M bit technology, which gives 512MB memory. It houses four
MM128 memory module kits.
• NF1024 board, based on 16M bit technology, which gives 1024MB memory. It houses
four MM256 memory module kits.
Note: The maximum memory configuration yields a system with:
• R30 and R40 - 2048MB (4 x 512MB)
• R50 - 4096MB (4 x 1024MB).
I/O Planars (Top View)
Flex Cable
Connector
Power Interface
Connector
Flex Cable
Connector
Power Interface
Connector
1/1
1/3
1/4
Adapter Slot Locations
1/5
1/6
1/7
1/8
0/1
0/3
0/2
Adapter Slot Locations
0/5
0/4
Reference Information
0/6
0/7
0/81/2
1-11
7015 Model R00 Rack with Power Distribution Bus (PDB)