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   have machines running 64bit Win7 + 64bit ACAD  -However they are only using 2gb of the available 6gb
Opening large files (around 9-10gb) results in 'Autocad -not responding'  
 - however -after long delay -will open- but be so slow as to be unusable.
(eg - 10 or 20 min to open -or respond to any change of tab change etc).

Window's resource manager clearly shows only 2gb being used 
-also shown as ' around 30% total memory use'.
I'ts also clear that drawings grind to a halt -as they approach 'using up' this 2gb limit.

(other software will quite happily take advantage of the avaiable memory above this 'limit')
Its as though ACAD is in 32 bit mode - i.e. not aware of the memory above the 2gb level.
Anyone any ideas ? Not getting far with our 'paid for' autodesk support so far !

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ColArco Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 25.Jan.2010 Status: Offline Points: 1	Topic: 64bit Win7 + ACAD 2010 - only using 2gb of 6gb Posted: 25.Jan.2010 at 13:56
	have machines running 64bit Win7 + 64bit ACAD -However they are only using 2gb of the available 6gb Opening large files (around 9-10gb) results in 'Autocad -not responding' - however -after long delay -will open- but be so slow as to be unusable. (eg - 10 or 20 min to open -or respond to any change of tab change etc). Window's resource manager clearly shows only 2gb being used -also shown as ' around 30% total memory use'. I'ts also clear that drawings grind to a halt -as they approach 'using up' this 2gb limit. (other software will quite happily take advantage of the avaiable memory above this 'limit') Its as though ACAD is in 32 bit mode - i.e. not aware of the memory above the 2gb level. Anyone any ideas ? Not getting far with our 'paid for' autodesk support so far !
	Col

smithlayman Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 21.Jan.2010 Location: United States Status: Offline Points: 25	Posted: 28.Jan.2010 at 08:07
	This may be a silly question but do you have a really good video card installed in this machine as well? You need alot of RAM and a good graphics card to get a good result, just a thought, I am no expert but I lock up my CAD all the time and it is because I do not have a machine that handles it well enough on larger files. Usually the RAM runs out on me. But I also know I needed and good VGA card....just a thought, again, no expert...
	Melody Layman

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64bit Win7 + ACAD 2010 - only using 2gb of 6gb

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