Troubleshooting Cooling Fans

Troubleshooting Cooling Fans

CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.

1.Open the system.

2.Reseat the fan or the fan's power cable.

3.If the fan functions properly, close the system.

If the problem persists, see Getting Help.

Troubleshooting System Memory

CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.

1.If the system is operational, run the appropriate diagnostic test. See Using System Diagnostics for available diagnostic tests.

If diagnostics indicates a fault, follow the corrective actions provided by the diagnostic program.

2.If the system is not operational, turn off the system and attached peripherals, and unplug the system from the power source. Wait at least 10 seconds and then reconnect the system to power.

3.Turn on the system and attached peripherals and note the messages on the screen.

If an error message is displayed indicating a fault with a specific memory module, go to step 12.

4.Enter the System Setup and check the system memory setting. Make any changes to the memory settings, if needed.

If the memory settings match the installed memory but a problem is still indicated, go to step 12.

5.Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.

6.Open the system.

7.Check the memory channels and ensure that they are populated correctly.

8.Reseat the memory modules in their sockets.

9.Close the system.

10.Enter the System Setup and check the system memory setting. If the problem is not resolved, proceed with the next step.

11.Open the system.

12.If a diagnostic test or error message indicates a specific memory module as faulty, swap or replace the module with a known good memory module.

13.To troubleshoot an unspecified faulty memory module, replace the memory module in the first DIMM socket with a module of the same type and capacity.

If an error message is displayed on the screen, this may indicate a problem with the installed DIMM type(s), incorrect DIMM installation, or defective DIMM(s). Follow the on-screen instructions to resolve the problem. For more information, see General Memory Module Installation Guidelines.

14.Close the system.

15.As the system boots, observe any error message that is displayed and the diagnostic indicators on the front of the system.

127

Page 127
Image 127
Dell R720XD owner manual Troubleshooting Cooling Fans, Troubleshooting System Memory

R720XD, R720 specifications

The Dell PowerEdge R720 and R720xd are powerful rack servers designed to deliver exceptional performance, reliability, and scalability for a wide range of data center applications. As part of Dell's 12th generation of PowerEdge servers, they come equipped with advanced features and technologies that cater to diverse workloads.

Both models are built on the Intel Xeon processor E5-2600 family, supporting dual-socket configurations. This allows for an impressive maximum memory capacity of up to 768 GB with 32 DIMM slots, enabling efficient handling of memory-intensive applications. The R720 and R720xd are designed with efficiency in mind, allowing organizations to optimize their resource utilization while maintaining high performance.

One of the most noteworthy features of the R720 and R720xd is the flexible storage options. The R720 can accommodate up to 16 2.5-inch drives, while the R720xd extends this capacity to 24 2.5-inch drives or 12 3.5-inch drives, greatly enhancing storage scalability. This flexibility is essential for businesses with growing data needs, allowing them to configure the server according to their specific requirements.

Both servers come with the iDRAC7 (Integrated Dell Remote Access Controller), which provides advanced management capabilities. iDRAC7 enables IT administrators to remotely monitor and control the server, simplifying the management of hardware functions and system updates. The optional Lifecycle Controller further streamlines server deployment and management, offering integrated systems management capabilities.

In terms of networking, the R720 and R720xd support a variety of network interface cards, including 1 GbE and 10 GbE options. This ensures that organizations can select the right networking capabilities for their specific workload and performance requirements.

Power efficiency is another significant characteristic of these servers. Equipped with Dell’s Energy Smart technologies, they can reduce power consumption and operating costs. Features like power capping and efficient fan control help achieve optimal thermal management in the data center.

In summary, the Dell PowerEdge R720 and R720xd are robust and versatile servers that offer exceptional performance for mission-critical applications. With their advanced processor support, memory capacity, flexible storage configurations, and comprehensive management features, they are well-suited for organizations looking to enhance their IT infrastructure.