Table 9. DIMM installation rules when two microprocessors (CPU0 and CPU1) are installed (continued)

DIMM slot

Two DIMMs

Four DIMMs

Six DIMMs

Eight DIMMs

 

 

 

 

 

CPU0 DIMM

 

 

X, 5

X, 5

CHC0

 

 

 

 

 

 

 

 

 

CPU1 DIMM

 

 

 

X, 8

CHA1

 

 

 

 

 

 

 

 

 

CPU1 DIMM

X, 2

X, 2

X, 2

X, 2

CHA0

 

 

 

 

 

 

 

 

 

CPU1 DIMM

 

X, 4

X, 4

X, 4

CHB0

 

 

 

 

 

 

 

 

 

CPU1 DIMM

 

 

X, 6

X, 6

CHC0

 

 

 

 

 

 

 

 

 

Note: For the Channel Mirroring Mode, it requires that you install the DIMMs in pair, and the DIMM installation for Channel Mirroring Mode when two microprocessors (CPU0 and CPU1) are installed is shown below. Follow this sequence rather than the sequence listed above if you want to use the Channel Mirroring Mode.

1. Pair 1: install a DIMM on CPU0 DIMM CHA0 and then install a DIMM on CPU0 DIMM CHB0.

2. Pair 2: install a DIMM on CPU1 DIMM CHA0 and then install a DIMM on CPU1 DIMM CHB0.

Installing a memory module

Attention

Do not open your server or attempt any repair before reading and understanding the Safety Information and the Warranty and Support Information on the ThinkServer Documentation DVD that comes with your product, and “Guidelines” on page 37. To obtain a copy of the publications, go to:

http://www.lenovo.com/support

This section provides instructions on how to install a memory module.

To install a memory module, do the following:

1.Remove all media from the drives and turn off all attached devices and the server. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the server.

2.Remove the server cover. See “Removing the server cover” on page 42.

3.Locate the appropriate memory slot on the system board into which you will install the memory module. To optimize system performance, follow the related memory module installation rules and install the memory module into a memory slot starting with the memory module farthest from the microprocessor. See “Memory module installation rules” on page 43.

4.Open the retaining clips of the memory slot into which you want to install the memory module.

44ThinkServer RD230 Types 1043, 1044, 4010, and 4011: Hardware Maintenance Manual

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Lenovo RD230 manual Installing a memory module, CPU0 Dimm CHC0 CPU1 Dimm CHA1 CHA0 CHB0

RD230 specifications

The Lenovo RD240 and RD230 are key players in the realm of enterprise-class servers, leveraging advanced technologies to deliver efficiency, reliability, and performance. These servers are designed to cater to the demands of small to medium-sized businesses, providing robust solutions for various workloads.

The Lenovo RD240 is a 2U rack server that features dual-socket support for Intel Xeon processors. This capability allows it to handle intensive computational tasks seamlessly, making it ideal for virtualized environments and database management. Equipped with up to 512GB of DDR3 memory, the RD240 ensures high memory bandwidth and reduced latency, improving overall system responsiveness.

In terms of storage, the RD240 supports a versatile range of options, with configurations allowing for up to twelve 3.5-inch hard drives or a combination of SSDs and HDDs. This flexibility enables businesses to tailor their storage solutions based on performance and capacity needs. Additionally, the server includes integrated RAID options, which enhance data protection and availability.

On the other hand, the RD230 is a compact 1U rack server that prioritizes space efficiency without compromising on performance. Like its larger counterpart, the RD230 supports dual Intel Xeon processors, but its design focuses on providing a more streamlined solution for environments with limited rack space. With support for up to 128GB of RAM, the RD230 can efficiently handle various applications, from web hosting to application serving.

Both servers are equipped with advanced management tools, such as the Lenovo XClarity Controller, which simplifies system monitoring and maintenance. This allows IT administrators to deploy updates, monitor hardware health, and manage resources with ease, leading to minimized downtime and optimized performance.

Furthermore, Lenovo places a strong emphasis on energy efficiency, ensuring that both the RD240 and RD230 have features like power management and cooling technologies. These innovations reduce their carbon footprint while lowering operating expenses, making them attractive choices for environmentally-conscious businesses.

In summary, the Lenovo RD240 and RD230 servers offer a blend of performance, flexibility, and efficient management, catering to the diverse needs of modern enterprises. With their robust features and reliable characteristics, they stand as dependable solutions for businesses looking to enhance their IT infrastructure while supporting future scalability.