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Missing RAM in Photoshop

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  #1  
Old 08-14-2008, 12:22 AM
digitalcanvas73's Avatar
digitalcanvas73 digitalcanvas73 is offline
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Missing RAM in Photoshop

I upgraded the memory of my PC to 3GB. There are two 1GB sticks and 2 512MB sticks. The comp runs 32-bit Windows Vista Home edition.
When I opened Photoshop and tried to change the Preference for memory it showed only 1696MB RAM. When I checked my system profile it shows the 3GB RAM.Where is the missing RAM?
Any advice or help will be highly appreciated.

Thanks,
ROY.

Last edited by digitalcanvas73; 08-14-2008 at 12:44 AM.
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Old 08-14-2008, 09:43 AM
Jerryb Jerryb is offline
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Re: Missing RAM in Photoshop

hi,
let me see if ican help a little...

for starters.... windows (xp or vista) will set aside a certain of ram for various devices and drivers... this is a fix amount that set aside weather it all used or not..!

so if you have 4 gigs , almost 900 megs is used just for that or another way to look at it...
if running 4 gigs ram.... the max avail ram you will have is appx 3.12 gigs or ram!!!!! and if running less than 4 gigs... all numbers change accordingly...

now on top of that.... programs running in the background will also will use up ram.... so depending on the programs youhave running and running in the background you could see a substantial amount of ram usage...

a couple of things you might try to do...
1. disable all needless programs that startup at windows boot....!! that should free up some ram for you....

2. now for vista.... (i don't have) I read a few months ago, there a program to manage that ram allottment that vista assigns to devices and drivers... but i can't find my bookmark on it...... so i'll have to try and find it again...


now you might want to loook at this article it give a good explanation of ram usage in vista..
http://blogs.technet.com/askperf/arc...eadyboost.aspx


Quote:
Originally Posted by digitalcanvas73 View Post
I upgraded the memory of my PC to 3GB. There are two 1GB sticks and 2 512MB sticks. The comp runs 32-bit Windows Vista Home edition.
When I opened Photoshop and tried to change the Preference for memory it showed only 1696MB RAM. When I checked my system profile it shows the 3GB RAM.Where is the missing RAM?
Any advice or help will be highly appreciated.

Thanks,
ROY.
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  #3  
Old 08-14-2008, 07:37 PM
Craig Walters's Avatar
Craig Walters Craig Walters is offline
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Re: Missing RAM in Photoshop

i dont run a vista machine, so i wont pretend any expertise here, but having read a bit of the article jerryb linked to, i'd say take a look at http://www.blackviper.com . he can help you trim the fat on system resources and perhaps free up a bit more ram for use.
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Old 08-14-2008, 09:50 PM
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D Thompson D Thompson is offline
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Re: Missing RAM in Photoshop

google 3g switch in your boot.ini. I had to do this in XPPro.

http://www.microsoft.com/whdc/system...AE/PAEmem.mspx
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Old 08-16-2008, 09:22 PM
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TommyO TommyO is offline
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Re: Missing RAM in Photoshop

Adobe PS can access the 3GB in Windows XP or Vista, but no more than that. In the OS for Apple, it can access more. (Just a difference in the OS's) Don't expect the entire 3GB to be available, as Craig & Jerry implied, Vista is a hog. So, you'll be lucky if 2GB is available to PS.

In Vista, the boot.ini is no longer available. Use the following from a command prompt:
BCDEDIT /set increaseuserva 3072
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