Monitor problems

Some monitors have their own self-tests. If you suspect a problem with your monitor, see the documentation that comes with the monitor for instructions for testing and adjusting the monitor. If you cannot diagnose the problem, call for service.

vFollow the suggested actions in the order in which they are listed in the Action column until the problem is solved.

vSee the Hardware Maintenance Manual to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).

vIf an action step is preceded by “(Trained service technician only),” that step must be performed only by a Trained service technician.

Symptom

Action

 

 

 

Testing the monitor.

1.

Make sure that the monitor cables are firmly connected.

 

 

2.

Try using a different monitor on the server, or try using the monitor that is being

 

 

tested on a different server.

 

3.

Run the diagnostic programs. If the monitor passes the diagnostic programs,

 

 

the problem might be a video device driver.

 

4.

(Trained service technician only) Replace the system board.

 

 

 

The screen is blank.

1.

If the server is attached to a KVM switch, bypass the KVM switch to eliminate it

 

 

 

as a possible cause of the problem: connect the monitor cable directly to the

 

 

correct connector on the rear of the server.

 

2.

Make sure that:

 

 

v The server is turned on. If there is no power to the server, see “Power

 

 

problems” on page 154.

 

 

v The monitor cables are connected correctly.

 

 

v The monitor is turned on and the brightness and contrast controls are

 

 

adjusted correctly.

 

 

v No beep codes sound when the server is turned on.

 

 

Important: In some memory configurations, the 3-3-3 beep code might sound

 

 

during POST, followed by a blank monitor screen. If this occurs and the Boot

 

 

Fail Count option in the Start Options of the UEFI Setup Utility program is

 

 

enabled, you must restart the server three times to reset the configuration

 

 

settings to the default configuration (the memory connector or bank of

 

 

connectors enabled).

 

3.

Make sure that the correct server is controlling the monitor, if applicable.

 

4.

Make sure that damaged UEFI firmware is not affecting the video; see “Using

 

 

the Setup Utility” on page 116.

 

5.

Observe the checkpoint LEDs on the system board; if the codes are changing,

 

 

go to step 6.

 

6.

See “Troubleshooting tables” on page 144.

 

 

 

The monitor works when you

1.

Make sure that:

turn on the server, but the

 

v The application program is not setting a display mode that is higher than the

screen goes blank when you

 

 

capability of the monitor.

start some application

 

 

v You installed the necessary device drivers for the application.

programs.

 

 

2.

Run video diagnostics.

 

 

v If the server passes the video diagnostics, the video is good; see

 

 

“Troubleshooting tables” on page 144.

 

 

v (Trained service technician only) If the server fails the video diagnostics,

 

 

replace the system board.

 

 

 

Chapter 7. Solving problems 151

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Lenovo RD210 manual Monitor problems
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RD210 specifications

The Lenovo RD210 is a powerhouse in the realm of entry-level rack servers, designed to deliver high performance and reliability for small to medium businesses. With its compact 1U form factor, the RD210 is an ideal choice for organizations looking to maximize space in their data center while still benefiting from robust computing capabilities.

One of the standout features of the RD210 is its support for the latest Intel Xeon processors, which provide exceptional performance for demanding workloads. This server can be equipped with multiple processor options, allowing businesses to select the configuration that best meets their needs. Its impressive memory capacity, supporting up to 192 GB of DDR3 RAM, ensures that users can run multiple applications simultaneously without experiencing any slowdowns.

Storage flexibility is another strong point of the RD210. The server supports a variety of configurations, accommodating up to four hot-swap drive bays for SAS or SATA drives. This feature allows for easy upgrades and replacements, reducing downtime and increasing overall efficiency. Additionally, organizations can opt for SSDs for enhanced performance, particularly valuable for applications that require rapid data access.

The RD210 also boasts a range of advanced technologies that enhance its performance and reliability. For instance, Lenovo's Intelligent Cooling technology helps maintain optimal operating temperatures, which can extend the life of the server components. Furthermore, with features like redundant power supplies and advanced error correction, the RD210 is designed to minimize system failures and ensure business continuity.

In terms of connectivity, the RD210 comes equipped with multiple Ethernet ports, supporting options for faster networking speeds and redundancy. It also integrates easily into existing infrastructure, with support for various operating systems, including Windows Server and Linux distributions.

For management, the Lenovo RD210 includes advanced tools like Lenovo XClarity, providing real-time monitoring and management capabilities. This feature simplifies server administration, making it easier for IT teams to manage workloads efficiently.

In conclusion, the Lenovo RD210 combines scalability, performance, and reliability in a compact package suitable for diverse computing needs. Its powerful processors, ample memory, and storage options make it a smart investment for businesses aiming to enhance their IT infrastructure. As organizations increasingly rely on secure and efficient solutions, the RD210 stands out as a reliable choice for robust server performance.
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