Lenovo N100 manual Beep symptoms, No-beep symptoms

Page 44

Symptom-to-FRU index

Beep symptoms

Symptom or error

FRU or action, in sequence

 

 

 

One beep and a blank, unreadable, or

1.

Reseat the LCD connector.

flashing LCD.

2.

LCD assembly.

 

3.

External CRT.

 

4.

System board.

 

 

 

One long and two short beeps, and a blank

1.

System board.

or unreadable LCD.

2.

LCD assembly.

 

3.

DIMM.

 

 

Two short beeps with error codes.

POST error. See “Numeric error codes” on

 

page 35.

 

 

 

Two short beeps and a blank screen.

1.

System board.

 

2.

DIMM.

 

 

 

Three short beeps, pause, three more short

1.

DIMM.

beeps, and one short beep.

2.

System board

 

 

 

One short beep, pause, three short beeps,

 

 

pause, three more short beeps, and one short

 

 

beep.

 

 

 

 

Only the cursor appears.

Reinstall the operating system.

 

 

Four cycles of four short beeps and a blank

System board (security chip)

screen.

 

 

 

 

Five short beeps and a blank screen.

System board

 

 

 

No-beep symptoms

Symptom or error

FRU or action, in sequence

 

 

 

No beep, power-on indicator on, LCD blank,

1.

Make sure that every connector is

and no POST.

 

connected tightly and correctly.

 

2.

DIMM.

 

3.

System board.

 

 

 

No beep, power-on indicator on, and LCD

1.

Reseat DIMM.

blank during POST.

2.

System board.

 

 

 

The power-on password prompt appears.

A power-on password or a supervisor

 

password is set. Type the password and

 

press Enter.

 

 

The hard-disk password prompt appears.

A hard-disk password is set. Type the

 

password and press Enter.

 

 

The DOS full screen looks smaller than it

Start the ThinkPad Configuration program

should.

and set the Screen expansion function.

 

 

 

38MT 0689, 0690, 0768

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Contents Lenovo 3000 N100 Hardware Maintenance Manual Page Lenovo 3000 N100 Hardware Maintenance Manual Page Contents Iv MT 0689, 0690 Important service information Before replacing partsAbout this manual Strategy for replacing FRUsImportant notice for replacing a system board How to use error messagesStrategy for replacing a hard disk drive Using the HMM Using PC Entitlement Warehouse PEWUsing eSupport Important information about replacing RoHS compliant FRUs Safety notices multilingual translations Safety noticeDiskette compatibility matrix Diskette Compatibility Drive CapacitySafety notices Safety notices Safety notices Safety notices 10 MT 0689, 0690 Electrical safety Safety informationGeneral safety 12 MT 0689, 0690 Safety inspection guide Grounding requirements Laser compliance statement 16 MT 0689, 0690 Read this first What to do firstFollowing are not covered under warranty Read this firstRecovery to Factory Contents by using Product Recovery CDs Related service informationService Web site Restoring the pre-installed system Passwords How to remove the power-on passwordHow to remove the hard-disk password Select Power-On PasswordPower management Screen blank modeStandby mode Select Master HDPHibernation mode Checkout guide Testing the computerCreating the PC-Doctor diagnostics diskette Diagnostics Interactive Tests Power system checkout Detecting system information with PC-DoctorHardware Info UtilityPin Voltage V dc Checking the battery packChecking operational charging Terminal Voltage V dc Lenovo 3000 N100 Product overview SpecificationsFeature Description Lenovo 3000 N100 Status indicators Indicator MeaningGreen Blinking greenFRU tests Fn key combinations Key combination DescriptionSymptom-to-FRU index Numeric error codesSoftware NMI failed System board 02F7 Fail-safe timer NMI failed System boardDMA test failed System board 02F6 Error messages Beep symptoms No-beep symptomsLCD-related symptoms Reseat the LCD connectorsSymptoms LCD assemblyIntermittent problems Undetermined problemsRetaining serial numbers FRU replacement noticesScrew notices Restoring the serial number of the system unit Retaining the UuidReading or writing the ECA information Select 2. Read S/N data from EepromFRU replacement notices Removing and replacing a FRU Battery pack Step Screw quantity Color Torque Hard disk drive slot coverHard disk drive PCI Express Mini Card for wireless LAN Dimm slot cover DimmFor MT0768 Optical driveFor MT0689 Thermal module slot cover and fan Thermal module 52 MT 0689, 0690 1100 CPU Cover, strip E cover Keyboard 56 MT 0689, 0690 Function board LCD unit Removing and replacing a FRU 60 MT 0689, 0690 M2.5 × 6 mm, flat-head, nylon-coated Black 392 Nm Kgfcm For MT 0689 Are only for MT 0689For MT Are only for MT64 MT 0689, 0690 M2 × 4 mm, flat-head, nylon-coated Black 245 Nm Kgfcm 1160 USB/Audio connector card VGA connector card 68 MT 0689, 0690 M2.5 × 3 mm, flat-head, nylon-coated Black 392 Nm Kgfcm To remove the MDC, do as follows LCD front bezel B cover Step Screw cap Screw quantity Color TorqueInverter card LCD panel, LCD cable, and hinges Remove the hinges from the LCD panel Are only for MT0768 Camera and LCD rear cover assembly a cover Locations Front view Rear view Bottom viewParts list Overall FRU FRU no RoHS CRUAC adapters AstecLCD FRUs 14.1-in. Wxga TFT15.4-in. Wxga TFT 15.4-in. WSXGA+ TFTLanguage RoHS ChiconyRecovery CDs Windows XP ProfessionalWindows XP Home Edition TBDBluetooth cable Miscellaneous partsTool Common parts listTools Power cords Region RoHS90 MT 0689, 0690 Trademarks Part Number 41W7535
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N100 specifications

The Lenovo N100 is a budget-friendly laptop that embodies practicality without sacrificing essential performance features. Designed for students and professionals alike, it combines mobility with reliability, making it a suitable choice for everyday computing tasks.

One of the standout features of the Lenovo N100 is its efficient Intel processor. Depending on the specific configuration, users can expect either the Intel Celeron or Pentium M processors, providing sufficient power for basic applications, web browsing, and productivity software. The laptop is equipped with up to 1GB of RAM, ensuring smooth multitasking capabilities for users working on several applications simultaneously.

In terms of storage, the N100 includes options that range from 40GB to 80GB hard drives. This capacity caters well to the needs of users who require ample storage for documents, media, and various software applications. The integrated CD/DVD drive further enhances its versatility, enabling users to read and write discs, which is particularly useful for those who rely on physical media.

The Lenovo N100 features a 14-inch display with a resolution of 1280x800 pixels, providing a decent viewing experience for its size. The screen's size strikes a good balance between portability and usability, making it easy to work on for extended periods without straining the eyes. Additionally, the inbuilt Intel Graphics Media Accelerator 900 offers sufficient graphical performance for light gaming and multimedia tasks.

Connectivity options on the Lenovo N100 include several USB 2.0 ports, an Ethernet port, and a VGA output, which allow for connecting various peripherals and external displays. The laptop also includes a 56K modem, making it adaptable to older connectivity setups. Integration of Wi-Fi support provides users the freedom to connect to wireless networks, enhancing functionality for both home and office use.

Another significant characteristic of the N100 is its durable design. While its aesthetics may be straightforward, the solid build quality ensures that it withstands the rigors of daily use. This toughness is complemented by a battery life that can last several hours, allowing users the flexibility to work on the go without the constant need for a power outlet.

In conclusion, the Lenovo N100 stands out as a reliable and affordable laptop option, equipped with essential features that cater to basic computing needs. Its combination of performance, storage, and connectivity makes it a practical choice for users looking for value and reliability in their laptop purchase.
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