Appendix A. System memory speed

The Intel Xeon microprocessor families compatible with this ThinkStation computer feature an integrated memory controller, which provides the microprocessor with direct access to the system memory. Because of this design, the system memory speed will be determined by a number of factors, including the microprocessor model and the type, speed, size (capacity), and number of DIMMs installed. Refer to the following table for the information on the supported system memory speed for your own computer model.

Table 2. DIMM type and speed: PC3-10600E

DIMM operating voltage

Microprocessor model

Memory frequency

 

 

 

 

 

Intel Xeon E5-2603, E5-2609

1066

MHz

 

 

 

 

 

Intel Xeon E5-2620, E5-2630/2630L,

 

 

1.5 V

E5-2637, E5-2640, E5-2643,

1333

MHz

 

E5-2667, E5-2650/2650L, E5-2660,

 

E5-2665, E5-2670, E5-2680,

 

 

 

E5-2685, E5-2690

 

 

 

 

 

 

Table 3. DIMM type and speed: PC3-10600R

 

 

 

 

 

DIMM operating voltage

Microprocessor model

Memory frequency

 

 

 

 

 

Intel Xeon E5-2603, E5-2609

1066

MHz

 

 

 

 

1.35 V, 1.5 V

Intel Xeon E5-2620, E5-2630/2630L,

 

 

E5-2637, E5-2640, E5-2643 E5-2667,

1333 MHz

 

 

E5-2650/2650L, E5-2660, E5-2665,

 

 

 

 

E5-2670, E5-2680, E5-2685, E5-2690

 

 

 

 

 

 

Table 4. DIMM type and speed: PC3-12800R

 

 

 

 

 

DIMM operating voltage

Microprocessor model

Memory frequency

 

 

 

 

 

Intel Xeon E5-2603, E5-2609

1066

MHz

 

 

 

 

 

Intel Xeon E5-2620, E5-2630/2630L,

 

 

1.35 V

E5-2637, E5-2640, E5-2643,

1333

MHz

 

E5-2650/2650L, E5-2660, E5-2665,

 

E5-2667, E5-2670, E5-2680,

 

 

 

E5-2685, E5-2690,

 

 

 

 

 

 

 

Intel Xeon E5-2603, E5-2609

1066

MHz

 

 

 

 

 

Intel Xeon E5-2620, E5-2630/2630L,

1333 MHz

1.5 V

E5-2640, E5-2667

 

 

 

 

 

 

E5-2637, E5-2643, E5-2650/2650L,

1600

MHz

 

E5-2660, E5-2665, E5-2670,

 

E5-2680, E5-2685, E5-2690,

 

 

 

 

 

 

© Copyright Lenovo 2012

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Lenovo 4229, 4223, 4228 manual Appendix A. System memory speed, 107

4229, 4223, 4228 specifications

Lenovo has long been recognized for its commitment to producing high-quality computing solutions, and the ThinkPad line is no exception. Among its various models, the Lenovo ThinkPad series 4228, 4223, and 4229 stand out for their robust features and reliable performance, making them ideal choices for business and professional use.

The Lenovo ThinkPad 4228 series is engineered with a focus on durability and performance. One of its key features is the powerful Intel Core processor range, which ensures that users can manage demanding applications and multitask efficiently. Alongside this, the device typically comes equipped with ample RAM, providing speed and responsiveness that enhances productivity.

Moving to the ThinkPad 4223, it streamlines user experience with advanced connectivity options. The inclusion of multiple USB ports, HDMI, and Ethernet capabilities allows for seamless integration with various devices and networks. The 4223 model often houses a backlit keyboard, enabling users to work effortlessly in low-light environments. This model puts a strong emphasis on portability, making it a reliable companion for professionals on the move.

The ThinkPad 4229 takes connectivity a step further by offering options like Wi-Fi 6 and Bluetooth, ensuring fast and stable connections whether in the office or on the go. This model is often equipped with a higher resolution display, contributing to a better viewing experience for video conferencing and presentations. Its extended battery life is a notable feature, allowing users to remain productive without the constant need for recharging.

All three models in the 422x series boast Lenovo’s robust security features, including fingerprint readers and TPM (Trusted Platform Module), which safeguard sensitive data against unauthorized access. Furthermore, the reputation of Lenovo ThinkPads for their exceptional keyboard layout ensures that users can type comfortably over extended periods, reducing strain and increasing efficiency.

In summary, the Lenovo ThinkPad 4228, 4223, and 4229 models represent a blend of power, durability, and user-friendly design. With their focus on connectivity, performance, and security, these laptops cater perfectly to the needs of professionals and businesses, confirming Lenovo's status as a leading manufacturer in the world of computing technology. Whether you need a rugged workhorse for heavy tasks or a portable device for meetings, the ThinkPad series provides versatile solutions to meet any requirement.