PCI-X slot attention LED: This green LED flashes approximately once per second when it is on. This LED is visible from the rear of the server and from inside the server. The meaning of the attention LED is defined by your operating system. For an illustration showing this LED on the system board, see the Option Installation Guide on the IBM xSeries Documentation CD. For additional information, see the “LEDs for Active PCI slots” in the Hardware Maintenance Manual and Troubleshooting Guide on the IBM xSeries Documentation CD.

NMI button: The Non-Maskable Interrupt (NMI) button is for service use only.

DC power LED: This green LED provides status information about the power supply. During typical operation, both the ac and dc power LEDs are on. For any other combination of LEDs, see the Hardware Maintenance Manual and Troubleshooting Guide on the IBM xSeries Documentation CD.

AC power LED: This green LED provides status information about the power supply. During typical operation, both the ac and dc power LEDs are on. For any other combination of LEDs, see the Hardware Maintenance Manual and Troubleshooting Guide on the IBM xSeries Documentation CD.

Operator information panel

The following illustration shows the status LEDs on the operator information panel on the front of the server.

Power-on

POST-

Hard disk drive

Information

LED

complete LED

activity LED

LED

OK

TX 1

RX

Ethernet transmit/

System-

receive activity LED

error LED

Important: If the power-on LED is off, it does not mean there is no electrical current present in the server. The LED might be burned out. To remove all electrical current from the server, you must unplug the server power cords from the electrical outlets or from the uninterruptible power device.

Power-on LED: When this green LED is on, power is present in the server. When this LED flashes, the server is in Standby mode (the system operating system is turned off and ac current is present). When this LED is off, the power subsystem, the ac power, or an LED has failed.

POST-complete LED: This green LED is on when POST is completed without any errors.

Hard disk drive activity LED: This green LED flickers when there is activity on a hard disk drive.

Information LED: When this amber LED is on, the server power supplies are nonredundant, or some other noncritical event has occurred. The event is recorded in the Error log. See “Choices available from the Configuration/Setup main menu” on page 16 for instructions for viewing the Error log. Check the diagnostic LED panel for more detailed information (see the Hardware Maintenance Manual and Troubleshooting Guide on the IBM xSeries Documentation CD).

Chapter 1. Introducing the IBM xSeries 235 Type 8671 server 11

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IBM xSeries 235 manual Operator information panel

xSeries 235 specifications

The IBM xSeries 235 is a distinguished server model designed to cater to the needs of small and medium-sized businesses, offering a blend of performance, scalability, and manageability. This versatile server is powered by Intel's Xeon processors, providing robust processing capabilities that can handle a variety of workloads efficiently.

One of the main features of the xSeries 235 is its dual-processor architecture, which allows for increased computational power. This configuration can support up to two Intel Xeon processors, making it well-suited for multitasking environments where performance is crucial. Additionally, it offers support for up to 8GB of RAM, enabling it to manage multiple applications simultaneously and ensure smooth operation under load.

In terms of storage, the xSeries 235 accommodates several hard drive configurations. It supports a mix of SCSI and SATA drives, allowing users to choose the storage solution that best meets their performance and capacity needs. The server’s RAID capabilities further enhance data protection and availability, offering Options such as RAID 0, 1, 1E, 5, and 10 for flexible and reliable storage management.

The xSeries 235 is built on IBM's Enterprise X-Architecture, which brings advanced features such as Hot-Swap drive bays and redundant power supplies. These features ensure higher reliability and uptime, making it a dependable choice for critical business applications. The server also incorporates built-in management tools through the IBM Director software, providing administrators with the ability to monitor, manage, and streamline server operations effectively.

Furthermore, the xSeries 235's compact 1U form factor facilitates easy deployment in data center environments with limited space. This space-efficient design does not compromise on performance, as it can still deliver significant computational resources without the bulk of traditional servers.

The server also emphasizes energy efficiency, aligning with the increasing demand for environmentally friendly technology solutions. It is designed to minimize power consumption while maintaining high performance, contributing to lower operational costs for businesses.

Overall, the IBM xSeries 235 stands out as a reliable and cost-effective server solution, ideal for businesses looking to enhance their IT infrastructure without overshooting their budget. Its combination of processing power, storage flexibility, and enterprise-grade features encapsulates why it remains a preferred choice for many organizations.