Related service information

Power management

To reduce power consumption, the computer has three power management modes: screen blank, standby, and hibernation.

Screen blank mode

Screen blank mode has three variants, as follows:

1.If you press Fn+F3, or if the time set on the “LCD off timer” in IBM BIOS Setup Utility expires,

vThe LCD backlight turns off.

vThe hard disk drive motor stops.

vThe speaker is muted.

2.If you are using the ACPI operating system and you press Fn+F3,

vThe LCD backlight turns off.

vThe hard disk drive motor stops.

3.If the time set on the “Turn off monitor” timer in the operating system expires,

vThe LCD backlight turns off.

To end screen blank mode and resume normal operation, press any key.

Standby mode

When the computer enters standby mode, the following events occur in addition to what occurs in screen blank mode:

vThe LCD is powered off.

vThe hard disk drive is powered off.

vThe CPU stops.

To enter standby mode, press Fn+F4.

Note: If you are using the ACPI operating system, you can change the action of Fn+F4.s

In certain circumstances, the computer goes into standby mode automatically:

vIf a “suspend time” has been set on the timer, and the user does not do any operation with the keyboard, the TrackPoint, the hard disk, the parallel connector, or the diskette drive within that time.

vIf the battery indicator blinks orange, indicating that the battery power is low. (Alternatively, if Hibernate when battery becomes low has been selected in the “Power Management Properties” window, the computer goes into hibernation mode.)

To cause the computer to return from standby mode and resume operation, do one of the following:

vPress the Fn key.

32R50/R50p, R51 Series

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IBM R50p Series, R50 Series, R51 Series manual Power management, Screen blank mode, Standby mode

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.