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Vista x64 Maximum RAM Limitations= 6.8GB?
This may seem slightly out-of-bounds for an AE thread, but I need to upgrade memory to accommodate my AE output/performance. And AE users can easily push the envelope for RAM use. So I try here.
Although Microsoft claims Vista x64 Home has a max memory limit of 16GB, credible sources inform me that in actuality only 6.8GB of RAM is recognized and useable/accessible – regardless of the physical amount of memory installed. Before spending $1K for a mem upgrade, I want to determine the practical reality.
Several Microsoft KBs have reported errors in Vista reporting true memory use/capacity, So the Task Mgr or Sys Info, etc, may not report the actual numbers accurately. And I know that the mem must be shared by kernel, resident processes, startup, applications, etc – so the number may be off slightly from what is reported. But 6.8GB vs 16GB is a bit of a difference.
Does anyone have a Vista64 system with 8-12GB of memory installed AND has observed that over 6.8GB of mem was actually being used when running numerous appls at full speed (rendering while encoding while writing DVD, etc) — in order to stress the RAM to full capacity?
Thanks for any feedback,
MikeSager NP-9262 Notebook, Intel Quad Q6600, 4GB DDR2, nVidia 8800m GTX, 3x-Seagate 500GB, WUXGA, Vista Premium-x64 – Production Premium Suite CS4
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2 Replies
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I’ve got a quad core running Vista Ultimate 64 bit with 8GB of RAM. I’m currently rendering with After Effects CS4 with multiprocessing turned on and Windows Task Manager shows 7.8 GB of the RAM in use.
Mind you, just to boot up Vista uses about 1.8GB of RAM!
Hope this helps,
John -
That answers what I need to know….Big help! Thanks, John
Sager NP-9262 Notebook, Intel Quad Q6600, 4GB DDR2, nVidia 8800m GTX, 3x-Seagate 500GB, WUXGA, Vista Premium-x64 – Production Premium Suite CS4
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