Trademarks
Lenovo, the Lenovo logo, and ThinkSystem are trademarks of Lenovo in the United States, other countries, 
or both.
Intel and Xeon are trademarks of Intel Corporation in the United States, other countries, or both.
Microsoft and Windows are trademarks of the Microsoft group of companies.
Linux is a registered trademark of Linus Torvalds.
Other company, product, or service names may be trademarks or service marks of others.
Important notes
Processor speed indicates the internal clock speed of the microprocessor; other factors also affect 
application performance.
CD or DVD drive speed is the variable read rate. Actual speeds vary and are often less than the possible 
maximum.
When referring to processor storage, real and virtual storage, or channel volume, KB stands for 1 024 bytes, 
MB stands for 1 048 576 bytes, and GB stands for 1 073 741 824 bytes.
When referring to hard disk drive capacity or communications volume, MB stands for 1 000 000 bytes, and 
GB stands for 1 000 000 000 bytes. Total user-accessible capacity can vary depending on operating 
environments.
Maximum internal hard disk drive capacities assume the replacement of any standard hard disk drives and 
population of all hard-disk-drive bays with the largest currently supported drives that are available from 
Lenovo.
Maximum memory might require replacement of the standard memory with an optional memory module.
Each solid-state memory cell has an intrinsic, finite number of write cycles that the cell can incur. Therefore, a 
solid-state device has a maximum number of write cycles that it can be subjected to, expressed as total 
bytes written (TBW). A device that has exceeded this limit might fail to respond to system-generated 
commands or might be incapable of being written to. Lenovo is not responsible for replacement of a device 
that has exceeded its maximum guaranteed number of program/erase cycles, as documented in the Official 
Published Specifications for the device.
Lenovo makes no representations or warranties with respect to non-Lenovo products. Support (if any) for the 
non-Lenovo products is provided by the third party, not Lenovo.
Some software might differ from its retail version (if available) and might not include user manuals or all 
program functionality.
Particulate contamination
Attention: Airborne particulates (including metal flakes or particles) and reactive gases acting alone or in 
combination with other environmental factors such as humidity or temperature might pose a risk to the 
device that is described in this document.
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ThinkSystem SR650 Maintenance Manual