1180 System board assembly

Important notices for handling the system board:

When handling the system board, bear the following in mind.

vThe system board has an accelerometer, which can be broken by applying several thousands of G-forces.

Note: Dropping a system board from a height of as little as 6 inches so that it falls flat on a hard bench can subject the accelerometer to as much as 6,000 G’s of shock.

vBe careful not to drop the system board on a bench top that has a hard surface, such as metal, wood, or composite.

vIf a system board is dropped, you must test it, using PC-Doctor for DOS, to make sure that the HDD Active Protection SystemTM still functions (see below).

Note: If the test shows that HDD Active Protection System is not functioning, be sure to document the drop in any reject report, and replace the system board.

vAvoid rough handling of any kind.

vAt every point in the process, be sure not to drop or stack the system board.

vIf you put a system board down, be sure to put it only on a padded surface such as an ESD mat or conductive corrugated material.

After replacing the system board, run PC-Doctor for DOS to make sure that

HDD Active Protection System still functions. The procedure is as follows:

1.Place the computer on a horizontal surface.

2.Run Diagnostics -->ThinkPad Devices -->HDD Active Protection Test.

Attention: Do not apply physical shock to the computer while the test is running.

For access, remove these FRUs, in order:

v“1010 Battery pack” on page 78

v“1020 ExpressCard blank bezel” on page 79

v“1030 Optical drive or travel cover” on page 80

v“1040 Thermal cover” on page 81

v“1050 Hard disk drive (HDD) assembly” on page 82

v“1060 DIMM” on page 84

v“1070 Fan assembly” on page 85

v“1080 CPU” on page 89

v“1090 Wireless WAN slot cover and PCI Express Mini Card for wireless WAN” on page 90

v“1100 Palm rest assembly with cables” on page 93

v“1110 PCI Express Mini Card for wireless LAN” on page 96

v“1120 Backup battery” on page 98

v“1130 Bluetooth daughter card (BDC-2)” on page 99

v“1140 Keyboard” on page 100

v“1150 Keyboard bezel” on page 103

v“1160 LCD unit” on page 106

v“1170 Top shielding assembly” on page 110

112ThinkPad Edge 14″, Edge 15″, E40, and E50 Hardware Maintenance Manual

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Lenovo E50, E40 manual System board assembly, Important notices for handling the system board
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E40, E50 specifications

Lenovo has long been recognized for producing reliable and innovative laptops, and the E50 and E40 series showcase this commitment to quality and performance. Targeted primarily at small businesses, these models are built for efficiency, durability, and usability, making them a popular choice among professionals on the go.

The Lenovo E50 comes equipped with the latest Intel processors, ensuring fast and efficient multitasking capabilities. With options for Intel's Core i5 or i7 processors, users can enjoy seamless performance for everyday tasks alongside more demanding applications. Additionally, the laptop supports DDR3L RAM, which can be configured up to 16GB, providing substantial memory for applications and enhancing the overall user experience.

On the other hand, the E40 series features a slightly more compact design while still offering robust power. This laptop variant is also equipped with Intel processors, providing a solid foundation for various computing needs. With a focus on portability, the E40 is an ideal solution for professionals who require a lightweight device without sacrificing performance.

Both models come with Lenovo's signature AccuType keyboard, which features a user-friendly design for comfortable typing, reducing user fatigue during prolonged use. This keyboard design is particularly beneficial for business users who may spend hours drafting reports, answering emails, or engaging in video conferences.

In terms of display, the E50 and E40 laptops boast vibrant HD screens that deliver sharp visuals and broad viewing angles. The anti-glare technology further enhances usability, allowing users to work effectively in various lighting conditions.

Connectivity is another strong point for both laptops. Equipped with multiple USB ports, HDMI output, and an Ethernet port, these devices offer versatility for connecting a variety of peripherals, external displays, and networks. Additionally, built-in Wi-Fi and Bluetooth ensure that users remain connected, facilitating collaboration and communication.

Security features are also paramount. Both the E50 and E40 offer options for fingerprint readers and TPM 2.0, ensuring that sensitive data remains protected against unauthorized access.

In conclusion, the Lenovo E50 and E40 series represent robust solutions for small businesses and professionals seeking reliable performance, portability, and comprehensive features. With their powerful processors, quality displays, ergonomic keyboards, and strong security measures, these laptops provide a balanced mix of productivity and convenience, making them valuable tools in today’s fast-paced work environment.
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