Memory Module - Lenovo ThinkServer TS150 User Manual And Hardware Maintenance Manual

Memory module

Note: The memory modules are extremely sensitive to ESD. Ensure that you read and understand "Handling
static-sensitive devices" on page 40 first and carefully perform the operation.
• "Memory module installation rules" on page 71
• "Removing the memory module" on page 72
• "Installing the memory module" on page 72
Memory module installation rules
Features
Your server has four memory slots.
• Each slot supports 4 GB, 8 GB, and 16 GB double data rate 4 (DDR4) unbuffered dual inline memory
modules (UDIMMs) with Error Checking and Correcting (ECC) technology.
• The minimum system memory is 4 GB (only one 4 GB memory module installed).
• The maximum system memory is 64 GB (one 16 GB memory module installed in each memory slot).
Guidelines
• Memory modules from different manufacturers are supported.
• All memory modules to be installed must be the same type with the same voltage.
• If your server comes with 2400 MHz memory modules and a microprocessor that supports a maximum of
2133 MHz memory, the data rate of your memory modules will be limited to 2133 MHz.
• If you mix memory modules with different frequencies in the same server, all the memory modules run at
the speed of the memory module with the lowest frequency.
• If you install memory modules with different capacity, install the memory module that has the highest
capacity first.
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Chapter 5 Replacing hardware
71