Appendix A. System Memory Speed - Lenovo 30D2 User Manual

Appendix A. System memory speed

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The Intel Xeon microprocessor families compatible with this ThinkStation computer feature an integrated
memory controller. The memory controller provides the microprocessor with direct access to the system
memory. Therefore, the system memory speed will be determined by the memory module type, frequency,
size (capacity), the number of memory modules installed, and the microprocessor model.
Notes:
• The actual system memory speed of the memory modules varies depending on the microprocessor
model. For example, your computer comes with 2666 MT/s memory modules, but the microprocessor
only supports up to 2400 MT/s memory modules. Then the system memory speed will be no faster than
2400 MT/s.
• The microprocessor models supported in your computer might vary. For a list of supported
microprocessor models, contact the Lenovo Customer Support Center.
• The ECC memory modules are not supported on the computer models with Intel Core i5 or i7
microprocessors.
Refer to the following information about the system memory speed:
• Memory module types:
– DDR4 ECC UDIMMs
– DDR4 non-ECC UDIMMs
• Memory module operating voltage: 1.2 V
• Memory module frequency: 2666 MT/s
• Microprocessor models:
– Intel Xeon: E-2176G, E-2174G, E-2146G, E-2144G, E-2136, E-2134, E-2126G, E-2124G, E-2124, and
E-2104G
– Intel Core: i7-8700, i5-8600, i5-8500, i5-8400, i3-8300, and i3-8100
– Intel Pentium: G5400
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