Can’t allocate memory to VM machines

4280 pts.
Tags:
Hyper-V
Hyper-V Error Messages
RAM
Windows Server 2008
Hyper-V won't let me allocate enough RAM, even though I have over 5 GB free I still get this message: Unable to allocate 2048 MB of RAM: Insufficient system resources exist to complete the requested service. Running Windows 2008 x64 with 8 GB RAM.

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This answer came in via twitter from @mhong00 . <a href=”http://blogs.msdn.com/tvoellm/archive/2008/06/11/can-t-start-my-vm-when-there-is-plenty-of-memory.aspx”>Try this link </a>

“The most common cause has to do with a bug in Windows Server 2008 NUMA memory allocations. This means you’ll only hit this bug on NUMA machines (all multi-proc AMD machines are NUMA + many high end Intel based servers). You can verify you have this bug by looking at the Task Manager reported “Cached” and “Free” memory.”

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  • JennyMack
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