2

BMC status LED

This LED indicates the BMC status of your server.

BMC status LED

Color

Description

 

 

 

On

Green

The BMC is not ready.

 

 

 

Off

None

The BMC has no power or fails.

 

 

 

Blinking

Green

The BMC is working.

 

 

 

3

-

10

POST code diagnostic LEDs

During the system boot process, the BIOS executes several platform configuration processes, each of which is assigned a specific hex POST code number. When each configuration routine is started, the BIOS displays the POST code number through the POST code diagnostic LEDs on the system board. To assist in troubleshooting a system hang during the POST process, the diagnostic LEDs can be used to identify the last POST process executed.

The POST code diagnostic LED #0 (callout 4 ) is the LSB and the POST code diagnostic LED #7 (callout 9 ) is the MSB. If a POST code diagnostic LED is lit, it indicates 1 in the binary numeral system; otherwise, it indicates 0. For example, if POST code diagnostic LEDs 5 , 6 , 9 , and 10 are lit, you can read the number as the following:

POST code diagnostic LED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

 

 

7

 

 

5

 

 

3

 

 

10

 

 

8

 

 

6

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Binary symbol

 

1

 

0

 

1

 

0

 

1

 

0

 

1

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The “10101010” indicates a corresponding POST code.

Note: The POST code diagnostic LEDs and POST error code information are intended for trained service personnel of Lenovo.

The following table lists information about the POST error codes.

POST code diagnostic LEDs

POST error code

Description

 

 

 

00001110

0x0E

Microcode not found.

 

 

 

00001111

0x0F

Microcode not loaded.

 

 

 

01010000

0x50

Memory initialization error. The

 

 

memory type is invalid or the memory

 

 

speed is incompatible.

 

 

 

01010001

0x51

Memory initialization error. The Serial

 

 

Presence Detect (SPD) data reading

 

 

has failed.

 

 

 

01010010

0x52

Memory initialization error. The

 

 

memory size is invalid or the memory

 

 

modules do not match.

 

 

 

01010011

0x53

Memory initialization error. No usable

 

 

memory detected.

 

 

 

01010100

0x54

Unspecified memory initialization

 

 

error.

 

 

 

01010101

0x55

Memory not installed.

 

 

 

01010110

0x56

Invalid microprocessor type or speed.

 

 

 

Chapter 3. Product overview 51

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Image 63
Lenovo 390, 441, 393, 392, 391, 388, 389, 387 manual Post code diagnostic LEDs, BMC status LED Color Description
Page 62 Page 64

389, 441, 388, 392, 391 specifications

Lenovo has established itself as a leader in the tech industry, particularly in the realm of laptops and PCs. Among its impressive lineup, the Lenovo series 387, 390, 393, 391, and 392 stands out for their innovative features, robust performance, and user-centric designs. These models cater to a range of users, from casual users to professionals who require high performance and reliability.

The Lenovo 387 is designed with versatility in mind. It comes equipped with an Intel Core processor that delivers snappy performance suitable for everyday tasks and even some heavy lifting with multimedia applications. The display features vibrant colors, making it perfect for streaming media or working on graphic design. Additionally, the 387 incorporates Lenovo’s advanced thermal management technology that ensures efficient cooling, preventing the device from overheating during intensive tasks.

Moving on to the Lenovo 390, this model emphasizes portability without compromising power. Weighing significantly less than its counterparts, the 390 is ideal for users who are always on the go. Its long-lasting battery life means users can stay productive throughout the day without searching for a power outlet. The 390 also features a high-resolution touchscreen, enhancing user interaction and providing a modern computing experience.

The Lenovo 393 further amplifies productivity features with its emphasis on connectivity. It comes with multiple USB ports, an HDMI output, and cutting-edge Wi-Fi technology for seamless networking. This model also boasts Lenovo's proprietary software, which simplifies file sharing and enhances collaboration, making it a strong choice for team-oriented projects.

For users interested in superior graphics and gaming performance, the Lenovo 391 is equipped with a dedicated GPU. This feature allows it to handle the latest games and graphic-intensive applications seamlessly. With an expansive display and high refresh rate, users can enjoy an immersive visual experience. Moreover, its customizable RGB backlit keyboard adds a touch of personalization.

Finally, the Lenovo 392 represents the pinnacle of balance between high-end features and affordability. It integrates smart AI capabilities that optimize device performance based on user habits, ensuring that it runs at optimal capacity. The 392 also prioritizes security with biometric login options and integrated privacy features, making it a trustworthy choice for sensitive tasks.

In summary, Lenovo's 387, 390, 393, 391, and 392 models showcase the brand's commitment to innovation, performance, and user satisfaction. Each model targets specific needs, ensuring that there is a suitable option for every type of user, from students to professionals and gamers. With advanced technologies and thoughtful designs, Lenovo continues to set the standard in the competitive laptop market.
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