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Dell Inspiron 7000 Dell Inspiron 7000 Reference and Troubleshooting Guide - Page 37

Smart CPU, Smart CPU Mode - keyboard not working

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Select Maximum Performance to configure power saving time-outs as a group to increase the performance of the computer. When this setting is selected, the Standby Time-Out option is set automatically to 4 minutes, and the Suspend TimeOut option is disabled. The Smart CPU Mode option is set automatically to Off. Select Maximum Power Savings to configure the power saving time-outs as a group to save the most battery power. When this setting is selected, the Standby TimeOut option is set automatically to 1 minute, and the Suspend Time-Out option is set automatically to 5 minutes. The Smart CPU Mode option is set automatically to On. NOTE: The power management settings of Windows 98 take precedence over the settings described here. For more information see "Using Windows 98 to Conserve Battery Power," in the System Users Guide. Smart CPU Mode allows the computer to slow down the microprocessor automatically if it is not being used. Settings for this option are: On - Allows the computer to slow down the microprocessor when it is inactive Off (the default) - Keeps the microprocessor running at its normal operating speed regardless of microprocessor inactivity To increase battery operating time, set the Smart CPU Mode option to On. When the Smart CPU Mode option is enabled and the microprocessor is inactive, the computer slows the microprocessor to save power. NOTES: Some communications software may not work properly when Smart CPU Mode is enabled. Dell recommends that you set Smart CPU Mode to Off if you are using communications software. Interactive application programs should function well when Smart CPU Mode is enabled. (Examples of interactive programs include spreadsheet, text editor, graphics design, entertainment, educational, and utility programs.) However, you may experience performance degradation when recalculating a large spreadsheet or during an extensive screen redraw in a graphical program. Benchmark utilities may not perform as intended when doing microprocessor speed tests. If the software you use suffers significant performance degradation, set Smart CPU Mode to Off. NOTE: The power management settings of Windows 98 take precedence over the settings described here. For more information see "Using Windows 98 to Conserve Battery Power," in the System Users Guide. Standby mode conserves battery power by stopping some computer activity, but leaves the computer ready to resume operations immediately. Use standby mode when you leave the computer unattended for less than a few minutes. Press to enter standby mode when you are in Windows 98. Resume normal computer activity by moving the cursor or pressing any key on the built-in keyboard (the computer takes less than a second to return to normal operation). Customizing System Features 2-9

Section	Page
Safety Instructions	3
When Using Your Computer	3
Ergonomic Computing Habits	5
When Removing or Installing Memory Modules	6
Protecting Against Electrostatic Discharge	7
Preface	9
About This Guide	9
Warranty and Return Policy Information	10
Other Documents You May Need	10
Notational Conventions	11
Warnings, Cautions, and Notes	11
Typographical Conventions	11
Contents	13
Introduction	21
Hardware Features	23
Software Features	25
Using the Power Button	25
Accessing Electronic Documentation	26
Available Options	26
Getting Help	27
Customizing System Features	29
System Utilities	29
Setup Program	30
Accessing the Setup Program	31
Main Menu Options	31
System Time	32
System Date	32
Floppy Drive	32
Hard Disk	32
Quiet Boot	32
Video Display Device	32
Television Type	32
System Memory	32
Extended Memory	33
System Devices Menu Options	33
IDE Controller	33
FDD Controller	34
Internal MPEG II	34
Serial Port	34
Infrared Port	34
Parallel Port	34
Security Menu Options	35
System Password	35
Set System Password	35
Password on Boot	36
Power Menu Options	36
Power Management Mode	36
Smart CPU Mode	37
Standby Time-Out	37
Suspend Time-Out	38
Suspend Mode	38
Resume on Modem Ring	39
Resume on Time of Day	39
Resume Time	39
Boot Menu Options	39
Exit Menu Options	40
Save Changes and Exit	41
Discard Changes and Exit	41
Get Default Values	41
Load Previous Values	41
Save Changes	42
Reinstalling Utilities and Drivers	42
Reinstalling Video Drivers	42
Reinstalling Touch Pad Drivers	43
Reinstalling Audio Drivers	43
Reinstalling Internal Modem Drivers	43
Reinstalling DVD-ROM Decoder Drivers	44
Creating the Save-to-Disk Suspend File	44
Reinstalling the System User’s Guide	45
Troubleshooting Your Computer	47
Backing Up Your Files	47
Basic Checks	48
Checking Connections	49
Look and Listen	51
Setup Options	52
Messages and Codes	52
System Beep Codes	54
Finding Software Solutions	56
Installing and Configuring Software	56
Start-Up Files	57
Using Software	57
Error Messages	57
Input Errors	57
Memory-Resident Programs	57
Program Conflicts	58
Avoiding Interrupt Assignment Conflicts	58
Troubleshooting Procedures	59
Troubleshooting a Wet Computer	59
Troubleshooting a Damaged Computer	61
Troubleshooting a Power Failure	62
Total Power Failure When Using the AC Adapter	63
Total Power Failure When Using a Battery	64
No Power to a Part of the Computer	65
Troubleshooting the Diskette Drive	66
Troubleshooting the CD-ROM or DVD-ROM Drive	67
Troubleshooting the Hard-Disk Drive	68
Troubleshooting an External Keyboard	69
Troubleshooting Memory	71
Troubleshooting the Display	73
Troubleshooting an External Monitor	74
Troubleshooting the Serial and Parallel Ports	75
Troubleshooting the Basic I/O Functions	76
Troubleshooting a Parallel Printer	77
Troubleshooting a Serial I/O Device	78
Troubleshooting the Infrared Port	79
Troubleshooting the Touch Pad	79
Troubleshooting Audio Functions	80
Running the Dell Diagnostics	81
Features of the Dell Diagnostics	81
When to Use the Dell Diagnostics	82
Before You Start Testing	82
Starting the Dell Diagnostics	83
Completing the Dell Diagnostics	84
How to Use the Dell Diagnostics	84
Confirming the System Configuration Information	85
How to Use the Menu	86
Main Menu Options	86
Run	86
Select	87
Subtest	87
Run (Under Subtest)	87
Select (Under Subtest)	87
Options (Under Subtest)	88
Test Limits (Under Subtest)	88
About (Under Subtest)	88
Key-Help (Under Subtest)	88
Quit Menu (Under Subtest)	88
Options	88
Number of Times to Repeat Test(s)	89
Maximum Errors Allowed	89
Pause for User Response	89
Output Device for Status Messages	90
Output Device for Error Messages	91
Test Limits	91
About	91
Key-Help	92
Quit	92
Tests in the Dell Diagnostics	92
Error Messages	94
RAM Test Group	94
Why Run a RAM Test?	94
Subtests	95
System Set Test Group	95
Why Run a System Set Test?	95
Subtests	96
Video Test Group	97
Why Run a Video Test?	98
Subtests	98
Keyboard Test Group	99
Why Run a Keyboard Test?	99
Subtests	100
Mouse Test	100
Why Run the Mouse Test?	100
Subtests	100
Diskette Drives Test Group	101
Why Run a Diskette Drives Test?	101
Subtests	101
IDE (ATA/ATAPI) Devices Test Group	102
Why Run an IDE Devices Test?	102
Subtests	102
Serial/Infrared Ports Test Group	103
Why Run a Serial/Infrared Ports Test?	103
Subtests	104
Parallel Ports Test Group	104
Why Run a Parallel Ports Test?	104
Subtests	105
Audio Test Group	106
Why Run an Audio Test?	106
Subtests	106
Getting Help	107
Technical Assistance	107
Help Tools	108
System User’s Guide	108
World Wide Web on the Internet	108
AutoTech Service	109
TechFax Service	109
TechConnect BBS	110
Automated Order-Status System	110
Technical Support Service	110
Problems With Your Order	110
Product Information	110
Returning Items for Warranty Repair or Credit	111
Before You Call	111
Dell Contact Numbers	113
Technical Specifications	123
Diagnostic Video Tests	129
Video Memory Test	130
Video Hardware Test	130
Text Mode Character Test	130
Character Attributes Subtest (80 x 25)	130
Character Set Subtest (80 x 25)	130
Character Attributes Subtest (40 x 25)	131
Character Set Subtest (40 x 25)	131
Text Mode Color Test	132
Color Attributes Subtest (80 x 25)	132
Color Attributes Subtest (40 x 25)	133
Color Bars Subtest	133
Text Mode Pages Test	133
Graphics Mode Test	133
320 x 200 Graphics Mode Screens	133
320 x 200 16-Color Graphics Mode Screen	133
640 x 200 16-Color Graphics Mode Screen	134
640 x 350 16-Color Graphics Mode Screen	134
640 x 480 2-Color Graphics Mode Screen	134
640 x 480 16-Color Graphics Mode Screen	134
320 x 200 256-Color Graphics Mode Screen	135
640 x 480 256-Color Graphics Mode Screen	135
800 x 600 16-Color Graphics Mode Screen	135
800 x 600 256-Color Graphics Mode Screen	135
1024 x 768 16-Color Graphics Mode Screen	135
1024 x 768 256-Color Graphics Mode Screen	135
Color Palettes Test	135
Solid Colors Test	136
Regulatory Notices	137
FCC Notices (U.S. Only)	138
Class A	139
Class B	139
Modem Regulatory Information	139
Fax Branding	140
IC Notice (Canada Only)	141
Modem Regulatory Information	141
CE Notice (European Union)	142
EN 55022 Compliance (Czech Republic Only)	143
VCCI Notice (Japan Only)	143
Class A ITE	143
Class B ITE	144
MOC Notice (South Korea Only)	144
Class A Device	144
Class B Device	145
Polish Center for Testing and Certification Notice	145
Wymagania Polskiego Centrum BadaÒ i Certyfikacji	146
Pozosta³e instrukcje bezpieczeÒstwa	146
NOM Information (Mexico Only)	147
Información para NOM (únicamente para México)	148
BCIQ Notice (Taiwan Only)	148
Warranty, Return Policy, and Year 2000 Statement of Compliance	149
Limited Three-Year Warranty (U.S. and Canada Only)	149
Coverage During Year One	149
Coverage During Years Two and Three	150
General Provisions	150
“Total Satisfaction” Return Policy (U.S. and Canada Only)	151
Year 2000 Statement of Compliance for Dell-Branded Hardware Products	152
Previous Products	152
Software	153
Additional Information	153

Match case Limit results 1 per page

Customizing System Features

2-9

Select

Maximum Performance

to configure power saving time-outs as a group to

increase the performance of the computer. When this setting is selected, the

Standby

Time-Out

option is set automatically to 4 minutes, and the

Suspend Time-

Out

option is disabled. The

Smart CPU Mode

option is set automatically to

Off

Select

Maximum Power Savings

to configure the power saving time-outs as a group

to save the most battery power. When this setting is selected, the

Standby

Time-

Out

option is set automatically to 1 minute, and the

Suspend Time-Out

option is set

automatically to 5 minutes. The

Smart CPU Mode

option is set automatically to

6PDUW±&38±0RGH

NOTE: The power management settings of Windows 98 take precedence over the

settings described here. For more information see “Using Windows 98 to Conserve

Battery Power,” in the System Users Guide.

Smart CPU Mode

allows the computer to slow down the microprocessor automati-

cally if it is not being used. Settings for this option are:

— Allows the computer to slow down the microprocessor when it is inactive

Off

(the default) — Keeps the microprocessor running at its normal operating

speed regardless of microprocessor inactivity

To increase battery operating time, set the

Smart CPU Mode

option to

When the

Smart CPU Mode

option is enabled and the microprocessor is inactive, the

computer slows the microprocessor to save power.

NOTES: Some communications software may not work properly when

Smart CPU

Mode

is enabled. Dell recommends that you set

Smart CPU Mode

Off

if you are

using communications software.

Interactive application programs should function well when

Smart CPU Mode

enabled. (Examples of interactive programs include spreadsheet, text editor, graphics

design, entertainment, educational, and utility programs.) However, you may experi-

ence performance degradation when recalculating a large spreadsheet or during an

extensive screen redraw in a graphical program. Benchmark utilities may not perform

as intended when doing microprocessor speed tests. If the software you use suffers

significant performance degradation, set

Smart CPU Mode

Off

6WDQGE\±7LPH²2XW

NOTE: The power management settings of Windows 98 take precedence over the

settings described here. For more information see “Using Windows 98 to Conserve

Battery Power,” in the System Users Guide.

Standby mode conserves battery power by stopping some computer activity, but

leaves the computer ready to resume operations immediately. Use standby mode

when you leave the computer unattended for less than a few minutes. Press

<Fn><Esc> to enter standby mode when you are in Windows 98. Resume normal

computer activity by moving the cursor or pressing any key on the built-in keyboard

(the computer takes less than a second to return to normal operation).