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Thank you all for the comments regarding 64GB RAM not being compatible with 64 bit Server 2008 R2 Standard Edition. To get the full use of installed memory and upgrade of the OS will be needed. <br />
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@ -saige- <br />
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The version of Sybase we are using is Sybase Central v6.0
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Thank you all for the comments regarding 64GB RAM not being compatible with 64 bit Server 2008 R2 Standard Edition. To get the full use of installed memory and upgrade of the OS will be needed.

@ -saige-

The version of Sybase we are using is Sybase Central v6.0

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My apologies @ -saige- <br />
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The version of Sybase we use is 15.7
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My apologies @ -saige-

The version of Sybase we use is 15.7

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I recently installed 64GB RAM on a 64 bit Server 2008 R2 Standard server however it is showing that only 32GB of it is usable. Also, in relation to the server, the RAM keeps filling up and only reduces after a reboot. The server is used for Sybase/SQL.
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I recently installed 64GB RAM on a 64 bit Server 2008 R2 Standard server however it is showing that only 32GB of it is usable. Also, in relation to the server, the RAM keeps filling up and only reduces after a reboot. The server is used for Sybase/SQL.

64GB RAM installed, showing 32GB of usable RAM

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.

Windows Server 2008

Microsoft SQL Server is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.SQL Server is available in multiple versions, typically identified by release year, and versions are subdivided into editions to distinguish between product functionality. Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning.

Microsoft SQL Server

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