Appendix A. System Memory Speed - Lenovo Think station 4223 User Manual

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
1.5 V
Table 3. DIMM type and speed: PC3-10600R
DIMM operating voltage
1.35 V, 1.5 V
Table 4. DIMM type and speed: PC3-12800R
DIMM operating voltage
1.35 V
1.5 V
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Microprocessor model
Intel Xeon E5-2603, E5-2609
Intel Xeon E5-2620, E5-2630/2630L,
E5-2637, E5-2640, E5-2643,
E5-2667, E5-2650/2650L, E5-2660,
E5-2665, E5-2670, E5-2680,
E5-2685, E5-2690
Microprocessor model
Intel Xeon E5-2603, E5-2609
Intel Xeon E5-2620, E5-2630/2630L,
E5-2637, E5-2640, E5-2643 E5-2667,
E5-2650/2650L, E5-2660, E5-2665,
E5-2670, E5-2680, E5-2685, E5-2690
Microprocessor model
Intel Xeon E5-2603, E5-2609
Intel Xeon E5-2620, E5-2630/2630L,
E5-2637, E5-2640, E5-2643,
E5-2650/2650L, E5-2660, E5-2665,
E5-2667, E5-2670, E5-2680,
E5-2685, E5-2690,
Intel Xeon E5-2603, E5-2609
Intel Xeon E5-2620, E5-2630/2630L,
E5-2640, E5-2667
E5-2637, E5-2643, E5-2650/2650L,
E5-2660, E5-2665, E5-2670,
E5-2680, E5-2685, E5-2690,
Memory frequency
1066 MHz
1333 MHz
Memory frequency
1066 MHz
1333 MHz
Memory frequency
1066 MHz
1333 MHz
1066 MHz
1333 MHz
1600 MHz
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