Lenovo SL400c, SL500c manual Power management, Screen blank mode, Standby mode

Models: SL400c SL500c

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Power management

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

Screen blank mode

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

To put the computer into screen blank mode, press Fn+F3.

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.

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.)

Note for the APM operating system: Even if you do not set the low-battery alarm, the charge indicator notifies you when the battery is low, and then the computer enters the power-saving mode automatically. This default low-battery behavior is independent of the operating system; so if you have set the low-battery alarm, the computer may not do what you specified. It chooses either your setting or the default setting, whichever is appropriate.

If you are using the ACPI operating system, only the low-battery alarm is available.

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

vPress the Fn key.

vOpen the LCD cover.

vTurn on the power switch.

Also, in either of the following events, the computer automatically returns from standby mode and resumes operation:

Related service information

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Lenovo SL400c, SL500c manual Power management, Screen blank mode, Standby mode

SL400c, SL500c specifications

The Lenovo SL500c and SL400c are part of Lenovo’s ThinkPad series, designed to cater to professionals and users who require reliable performance in a business-oriented laptop. These models are recognized for their blend of practicality, usability, and robust functionality, suitable for both business environments and everyday tasks.

Starting with the SL500c, this model features a 15.4-inch display, which provides ample screen real estate for multitasking and productivity. It is equipped with Intel's Core 2 Duo processors, ensuring efficient performance and responsiveness, making it ideal for robust applications and multitasking scenarios. The SL500c supports a range of RAM configurations, allowing users to choose up to 8GB to fit their specific needs. Additionally, it offers various storage options, including traditional hard drives and solid-state drives, to optimize speed and data retrieval efficiency.

The SL400c, on the other hand, sports a more compact 14.1-inch display, balancing portability with performance. Similar to its sibling, the SL400c is powered by Intel's Core 2 Duo processors, providing the necessary computing power for daily tasks and business applications. The laptop supports up to 4GB of RAM, catering to users who focus on efficiency rather than high-end gaming or graphic-intensive workloads.

Both models embrace Lenovo's reputation for durability, featuring a spill-resistant keyboard and robust chassis design to withstand the rigors of frequent travel. The ThinkPad keyboard is renowned for its tactile feedback, providing an enjoyable typing experience that enhances productivity. Additionally, these laptops incorporate ThinkVantage technologies, including security features like fingerprint readers, and hardware-based encryption to safeguard sensitive data effectively.

Another notable characteristic of the SL500c and SL400c is their extended battery life, providing users with the ability to work on the go without the constant need for charging. Integrated wireless capabilities, such as Wi-Fi and optional 3G/4G connectivity, ensure that users remain connected, whether in the office or on a business trip.

In summary, the Lenovo SL500c and SL400c exemplify a commitment to quality and performance. With their durable designs, effective processing power, and thoughtful business-oriented features, they remain valuable options for professionals seeking reliable computing solutions. These laptops truly represent Lenovo’s dedication to providing technology that meets the demanding requirements of the modern workplace.