MSI Fuzzy Mainboard GME965 - Manual (Page 52)

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MS-9803 Mainboard
MPS Configuration
MPS Revision
This field allows you to select which MPS (Multi-Processor Specification) ver-
sion to be used for the operating system. You need to select the MPS version
supported by your operating system. To find out which version to use, consult
the vendor of your operating system.