Symptom-to-FRU index

Beep symptoms

Symptom or error

FRU or action, in sequence

 

 

 

One beep and a blank,

1.

Reseat the LCD

unreadable, or flashing LCD.

 

connector.

 

2.

LCD assembly.

 

3.

External CRT.

 

4.

System board.

 

 

 

One long and two short beeps,

1.

System board.

and a blank or unreadable

2.

LCD assembly.

LCD.

3.

DIMM.

 

 

 

Two short beeps with error

POST error. See “Numeric

codes.

error codes” on page 54.

 

 

 

Two short beeps and a blank

1.

System board.

screen.

2.

DIMM.

 

 

 

Three short beeps, pause,

1.

DIMM.

three more short beeps, and

2.

System board

one short beep.

 

 

 

 

 

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

System board (IBM security

and a blank screen.

chip)

 

 

Five short beeps and a blank

System board

screen.

 

 

 

 

 

No-beep symptoms

Symptom or error

FRU or action, in sequence

 

 

 

No beep, power-on indicator

1.

Make sure that every

on, LCD blank, and no POST.

 

connector is connected

 

 

tightly and correctly.

 

2.

DIMM.

 

3.

System board.

 

 

 

No beep, power-on indicator

1.

Reseat DIMM.

on, and LCD blank during

2.

System board.

POST.

 

 

 

 

The power-on password prompt

A power-on password or a

appears.

supervisor password is set.

 

Type the password and press

 

Enter.

 

 

The hard-disk password prompt

A hard-disk password is set.

appears.

Type the password and press

 

Enter.

 

 

The DOS full screen looks

Start the ThinkPad

smaller than it should.

Configuration program and set

 

the Screen expansion

 

function.

 

 

 

60R50/R50p, R51 Series

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IBM R50 Series, R50p Series manual Beep symptoms, No-beep symptoms, 60 R50/R50p, R51 Series

R51 Series, R50 Series, R50p Series specifications

The IBM R50p Series, R50 Series, and R51 Series represent a notable lineage of ThinkPad laptops that were well-received for their robust features and business-friendly characteristics. Launched in the early 2000s, these laptops catered primarily to professionals and enterprises, offering a blend of performance, durability, and a suite of technologies that made them stand out in the market.

The R50p Series was particularly notable for its focus on high-performance computing. It featured powerful Intel processors, such as the Pentium M, and supported ample RAM capacity, which enhanced multitasking capabilities. This series was also equipped with dedicated graphics options, such as the ATI Mobility Radeon, making it suitable for tasks requiring graphic processing, including CAD applications.

The R50 Series continued this trend, balancing performance with affordability. It boasted a lightweight design, making it easier for professionals on the move. The R50 series introduced several connectivity options, including USB 2.0 ports, Ethernet, and optional Wi-Fi, allowing for seamless networking in office environments. The inclusion of a keyboard with a TrackPoint enabled users to navigate efficiently, a hallmark of the ThinkPad design philosophy.

The R51 Series took things a step further by enhancing performance and user experience. It offered improved battery life, which was a significant consideration for mobile professionals. The robust build quality, often referred to as "business rugged," ensured that these laptops could withstand the rigors of daily use. The R51 also featured an upgraded display for better visuals, contributing to more comfortable working conditions, especially for long hours.

In terms of security, these series employed various features like a fingerprint reader and an integrated Trusted Platform Module (TPM) for enhanced data protection. IBM's commitment to security and reliability was evident in these models, making them a preferred choice among enterprises.

Overall, the IBM R50p, R50, and R51 Series ThinkPads combined high-performance hardware with a range of features tailored to meet the needs of business users. Their durability, battery life, and emphasis on security made them lasting favorites for those seeking a dependable laptop for professional use. Even years after their release, these models are often regarded as symbols of IBM's legacy in the computing industry.