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Method and apparatus to shutdown a memory channel

  • US 10,521,003 B2
  • Filed: 04/03/2017
  • Issued: 12/31/2019
  • Est. Priority Date: 12/22/2011
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • deciding to enter a lower power state; and

    ,shutting down a memory channel in a computer system in response where thereafter other memory channels in said computer system remain active so that said computer system remains operative while said memory channel is shutdown, wherein the shutting down of the memory channel comprises migrating a first unit of data from the memory channel to a volatile memory device that is coupled to a first active memory channel, and, migrating a second unit of data from the memory channel to a non volatile memory device that is coupled to a second active memory channel, where, the first unit of data has a history of greater usage than the second unit of data, and wherein the second active memory channel is allocated system memory address space.

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