Table 1. Light Path Diagnostics (continued)

LED on

Cause

 

 

Over Spec

The server is drawing more power than the power supplies are rated for. (See “Diagnostic panel

 

error LEDs” on page 101)

 

 

Temp

The system temperature has exceeded the maximum rating. (See “Diagnostic panel error LEDs” on

 

page 101)

 

 

Power checkout

Power problems can be difficult to troubleshoot. For instance, a short circuit can exist anywhere on any of the power distribution busses. Usually a short circuit will cause the power subsystem to shut down because of an overcurrent condition.

A general procedure for troubleshooting power problems is as follows:

1.Power off the system and disconnect the AC cord(s).

2.Check for loose cables in the power subsystem. Also check for short circuits, for instance if there is a loose screw causing a short circuit on a circuit board.

3.Remove adapters and disconnect the cables and power connectors to all internal and external devices until system is at minimum configuration required for power on (see ″Minimum operating requirements″ on page 122).

4.Reconnect the AC cord and power on the system. If the system powers up successfully, replace adapters and devices one at a time until the problem is isolated. If system does not power up from minimal configuration, replace FRUs of minimal configuration one at a time until the problem is isolated.

To use this method it is important to know the minimum configuration required for a system to power up (see page 122). For specific problems, see “Power error messages” on page 119

Recovering BIOS

If the BIOS code in the server has become corrupted, such as from a power failure during a flash update, you can recover the BIOS using the recovery boot block and a BIOS flash diskette.

Note: You can obtain a BIOS flash diskette from one of the following sources:

vUse the ServerGuide program to make a BIOS flash diskette.

vDownload a BIOS flash diskette from the World Wide Web. Go to http://www.pc.ibm.com/support/, select IBM Server Support, and make the selections for the server.

The flash memory of the server consists of a primary page and a backup page. The J14 jumper controls which page is used to start the server. If the BIOS in the primary page is corrupted, you can use the backup page to start the server; then boot the BIOS Flash Diskette to restore the BIOS to the primary page.

To recover the BIOS:

1.Turn off the server and peripheral devices and disconnect all external cables and power cords; then, remove the cover.

2.Locate jumper J14 on the processor board (see “System board jumpers” on page 44).

3.Move J14 to pins 1 and 2 to enable secondary boot block page.

20IBM xSeries 350 Type 8682: Hardware Maintenance Manual

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IBM 8682 manual Power checkout, Recovering Bios, LED on Cause Over Spec, Temp
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8682 specifications

The IBM 8682 is a versatile and robust system designed to cater to various computing needs in enterprise environments. This machine falls within the IBM family of hardware solutions, known for their reliability, high performance, and support for extensive enterprise applications. With a blend of cutting-edge technologies and features, the IBM 8682 stands out as an essential tool for businesses aiming to enhance their operational efficiency.

One of the main features of the IBM 8682 is its powerful processing capabilities. Equipped with a multi-core processor architecture, the system delivers impressive computational speed and efficiency. This design enables the handling of multiple tasks simultaneously, which is critical for organizations that run complex workloads and require speedy data processing.

The IBM 8682 also excels in memory performance. With a substantial RAM capacity, it supports extensive multitasking and allows for the smooth operation of memory-intensive applications. This feature is particularly beneficial for industries that rely on data analytics, heavy database transactions, and resource-intensive operations.

Moreover, the IBM 8682 incorporates advanced storage technologies. It supports a variety of storage options, including SSDs and HDDs, which can be configured for optimal performance based on enterprise needs. The use of SSDs provides rapid access to data, reducing latency and improving overall system responsiveness.

Networking capabilities are yet another highlight of the IBM 8682. It comes equipped with advanced networking interfaces that ensure seamless connectivity with other systems and devices. This feature is crucial for organizations operating in collaborative environments or those that rely on cloud computing services.

Security is a top priority for IBM, and the 8682 reflects this commitment through its comprehensive security features. The system includes hardware-based security modules that protect sensitive data and ensure compliance with industry regulations. Additionally, it supports encryption technologies and secure boot processes, making it a reliable choice for businesses concerned about data integrity and protection.

In terms of scalability, the IBM 8682 is designed to grow with an organization. It can be easily expanded with additional storage, memory, and processing resources, allowing businesses to adapt to changing demands without needing a complete system overhaul.

In conclusion, the IBM 8682 combines robust processing power, ample memory, versatile storage options, advanced networking, and strong security features, making it an ideal solution for a wide range of enterprise applications. Its scalability and reliability further ensure that it meets the evolving needs of modern businesses, enabling them to thrive in an increasingly competitive landscape. With the IBM 8682, organizations can trust they are investing in a system built for both current demands and future growth.
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