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Photoshop not using all RAM?

G'day, Photoshop CS5 is only using 1.5gb RAM out of 4gb, does anyone know how to get it to use all of the RAM?
Thanks
I am using windows 7 ultimate 32bit

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Vyger4 years ago
First, because it is a 32 bit system it is limited to using only 3.6 gig of ram. This is for Windows XP and Windows 7, in fact all Windows systems. A 32 bit system cannot use more than 3.6. I have heard of some people trying to put a patch of sorts to get more than that but I wouldn't count on it.
Next, your Windows system requires a certain amount of memory even if it appears to be doing nothing. So that memory is off limits to a program.
From your screen shot it appears that the program is using all the memory that it is allowed to. (Available RAM ) It is possible that the only way you are going to be able to get more RAM available is to upgrade to a 64 bit version.
+1

It's using as much as it possibly can. If you want it to use more RAM then upgrade to a 64 bit OS and add more RAM to the system.
oldmicah4 years ago
I think that theres a setting that allows you to set the percentage of memory in photoshop... may be here. Edit < Preferences < Performance ? Bump it up to 90% and open a bunch of big files to see if it makes a difference.

For more detail, look here. http://helpx.adobe.com/photoshop/kb/optimize-performance-photoshop-cs4-cs5.html#main_Memory_Usage

Best o' luck