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Hyper-V VM Memory Issues

I have a server running Hyper-V with two VM's. The server is 2008 R2 Std, 12GB RAM, 300GB+ Free HDD space.

The VM in question is also running 2008, 2 processors, 6GB and plenty of hdd space. I have been having some performance issues so decided to upgrade the memory. I have turned the vm off, upped the memory to 8GB (also tried 7gb) and when i try to power the VM backup it fails saying "error when attempting to change the state..."

I have tried creating a new VM with the increased memory and attaching the vhd but still the same error. I can however change the number of virtual processors no problem.

If it is of any relevance, the second VM on the server runs with 4GB, i can upgrade it to 5gb and it boots, anything above fails also.

Any ideas as to why it will not boot when i upgrade the memory?

Thanks

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serchlop

I have made a little research in the past post and find more people with problems like you.

The bad news are that looks like they haven't found a solution for their problem.

Hope you can fix it.

Look at the question https://www.experts-exchange.com/questions/26849385/Virtual-Machine-memory-allocation.html

Antikythera

ASKER

This indeed was the issue, I put another 32GB of physical RAM into the server andthe VM allowed me to double the RAM without issue.

Thanks