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IBM 86605SU Maintenance Manual - Page 234

Processor Board Jumpers, Table 9 of 2. Processor Board Jumpers

UPC - 087944475767

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Processor Board Jumpers Table 9 contains the names and descriptions of the jumper blocks located on the processor board. The highlighted numbers in the table refer to the highlighted numbers in the illustration in "Processor Board Component Locations" on page 227. Notes 1. Turn off the server, and disconnect the power cords before moving any jumpers. 2. Be sure the microprocessor bus-to-core ratio is set correctly. For example, if you have a 350 MHz microprocessor installed and the system bus speed is 100 MHz (the default), be sure that the jumpers are set to a bus-to-core ratio of 3.5 (350/100). Refer to jumpers J27-J30 in Table 9 and Table 10 on page 230. MHz denotes internal clock speed of the microprocessor only; other factors also affect application performance. Attention If installing or changing to a different speed processor than the original processor, be sure to change the processor core-frequency selection jumpers on the processor board. If the microprocessor bus-to-core ratio is incorrect, system-board components will overheat and component damage might occur. Table 9 (Page 1 of 2). Processor Board Jumpers Jumper Name 1-4 Microprocessor core frequency selection (J27-J30) 8 J5 Reserved 15 J12 SDRAM selection 16 J13 Reserved 17 J8 Reserved Description The default core/bus fraction is 3.5 (350/100 MHz). Jumpers are installed on pins 1 and 2 of J27 and J30; either jumpers are installed on pins 2 and 3 of J28 and J29 or no jumper is installed on J28 or J29. For the core/bus fraction 4 (400/100 MHz), the jumpers are installed on pins 1 and 2 of J28, J29, and J30; either a jumper is installed on pins 2 and 3 of J27 or no jumper is installed on J27. For the core/bus fraction 4.5 (450/100 MHz), jumpers are installed on pins 1 and 2 of J28 and J30; and either jumpers are installed on pins 2 and 3 of J27 and J29 or no jumpers are installed on J28 or J30. The default position is a jumper on pins 1 and 2. If your server has unbuffered SDRAM, a jumper should be on pins 1 and 2. If your server has registered SDRAM, a jumper should be on pins 2 and 3. The default position is a jumper on pins 1 and 2. The default position is no jumper on J8. Netfinity 5500 - Type 8660 229

Section	Page
About This Manual	3
Important Safety Information	3
Online Support	4
General Checkout	12
Diagnostic Tools	15
Diagnostic Programs	15
Power-on Self Test (POST)	16
POST Beep Codes	16
Error Messages	17
Diagnostic Programs	18
Features	20
Additional Service Information	22
Administration and Monitoring Utility Program	23
Configuring the Ethernet Controller	60
Configuring Options	62
Configuration Overview	63
Configuration/Setup Utility Program	65
Configuring ISA and PCI Adapters	66
Failover for Redundant Ethernet	67
Netfinity System Management Processor	70
Resolving Configuration Conflicts	78
ServeRAID Configuration Program	79
Software Installation	79
Specifications	80
Starting the ServeRAID Configuration Program	82
Status LEDs	84
Understanding Disk Array Technology	86
Using the Advanced Configuration Functions	94
Using the Configuration/Setup Utility Main Menu	96
Using the ServeRAID Configuration Program	106
Using the ServeRAID Mini-Configuration Program	142
Locations	146
Adapters	147
Battery Replacement	152
Before You Begin	155
Changing Jumper Positions	156
Completing the Installation	159
Controls and Indicators	163
CD-ROM Drive	166
DASD Backplane Removal	168
Diagnostics Panel LEDs	169
External Options	170
Front Bezel Removal	177
Hot-Plug PCI Adapter Installation	178
Hot-Swap Power Supply Installation	186
Hot-Swap Power Supply Removal	190
Hot-Swap Fan Assembly	192
Information LED Panel	194
Information Panel Cover Removal	196
Information Panel LED Assembly Removal	197
Input/Output Connectors and Expansion Slots	199
Interior LED and Speaker Assembly	201
Internal Drive Installation	202
Installing Devices in the NetBAY3	214
Memory-Module Kits	219
Microprocessor Kit	222
Preparing to Install Options	225
Power Backplane Removal	227
Power Supplies	229
Power Supply Filler Plate	230
NetBAY3 Bezel Installation	231
Processor Board Component Locations	232
Processor Board Jumpers	234
Processor Board Removal	236
Rack Installation	237
SCSI Backplane Component Locations	253
SCSI Backplane Option Jumpers	254
Server Cabling	255
Server Door and Trim Bezels Removal	256
Shuttle Removal	257
Side Cover(s) Removal	258
System Board Component Locations	259
System Board Jumpers	261
System Board Removal	263
Top Cover Removal	266
Voltage Regulator Card Removal	267
Symptom-to-FRU Index	268
Beep Symptoms	268
No Beep Symptoms	271
Control Panel System Error LED	271
Diagnostic Error Codes	274
Error Symptoms	277
Power Supply LED Errors	278
POST Error Codes	280
SCSI Error Codes	285
ServeRAID II Controller Error Codes/Messages	286
System Board LEDs	290
System Board SCSI LEDs	290
Undetermined Problems	291
Parts Listing (Type 8660)	293
System	294
Hard Disk Drives and Cables	300
Keyboards	301
Power Cords	302
Safety Information	305
General Safety	305
Electrical Safety	306
Safety Inspection Guide	307
Handling Electrostatic Discharge-Sensitive Devices	309
Grounding Requirements	309
Send Us Your Comments!	335
Problem Determination Tips	336
Phone Numbers, U.S. and Canada	337

Match case Limit results 1 per page

Processor Board Jumpers

Table

9 contains the names and descriptions of the jumper

blocks located on the processor board.

The highlighted

numbers in the table refer to the highlighted numbers in

the illustration in “Processor Board Component Locations”

on page

227.

Notes

Turn off the server, and disconnect the power

cords before moving any jumpers.

Be sure the microprocessor bus-to-core ratio is

set correctly.

For example, if you have a 350

MHz microprocessor installed and the system

bus speed is 100 MHz (the default), be sure that

the jumpers are set to a bus-to-core ratio of 3.5

(350/100).

Refer to jumpers J27–J30 in Table

and Table

10 on page

230.

MHz denotes internal clock speed of the

microprocessor only; other factors also affect

application performance.

Attention

If installing or changing to a different speed processor

than the original processor, be sure to change the

processor core-frequency selection jumpers on the

processor board.

If the microprocessor bus-to-core

ratio is incorrect, system-board components will

overheat and component damage might occur.

Table 9 (Page 1 of 2). Processor Board Jumpers

Jumper Name

Description

±1²

–

±4²

Microprocessor

core frequency

selection (J27–J30)

The default core/bus fraction is 3.5 (350/100

MHz).

Jumpers are installed on pins 1 and 2

of J27 and J30; either jumpers are installed

on pins 2 and 3 of J28 and J29 or no jumper

is installed on J28 or J29.

For the core/bus fraction 4 (400/100 MHz),

the jumpers are installed on pins 1 and 2 of

J28, J29, and J30; either a jumper is installed

on pins 2 and 3 of J27 or no jumper is

installed on J27.

For the core/bus fraction 4.5 (450/100 MHz),

jumpers are installed on pins 1 and 2 of J28

and J30; and either jumpers are installed on

pins 2 and 3 of J27 and J29 or no jumpers

are installed on J28 or J30.

±8²

J5 Reserved

The default position is a jumper on pins 1 and

±15²

J12 SDRAM

selection

If your server has unbuffered SDRAM, a

jumper should be on pins 1 and 2.

If your

server has registered SDRAM, a jumper

should be on pins 2 and 3.

±16²

J13 Reserved

The default position is a jumper on pins 1 and

±17²

J8 Reserved

The default position is no jumper on J8.

Netfinity 5500 - Type 8660

229