CS3 Not Using Available RAM at DVinfo.net

Buddy Frazer · August 28th, 2007, 07:12 AM

I have a PC with 4GB of RAM and 4 virtual processors. Premiere CS3 uses all of the processors, but only about 1GB of RAM. Vegas consistently uses 2GB, which I think is the max for one program.

This makes Premiere CS3 preview and render very slowly. Same thing happens with After Effects.

Is there some setting I need to change for CS3 to use more RAM?

Buddy

Steve Wolla · September 1st, 2007, 10:13 AM

What operationg system are you running? XP, Vista?

Buddy Frazer · September 2nd, 2007, 07:57 AM

I am running XP SP2.

David J. Payne · September 2nd, 2007, 10:59 AM

i find that AE7 has the same problem.. i have 3gb but it only recognises 2gb on start up... I wonder if CS3 does the same thing? I'd certainly also like to know..

Buddy Frazer · September 2nd, 2007, 02:58 PM

I believe the "using on 2GB when 3Gb are installed" is a Win Xp issue. There is a /3Gb switch you can try on Windows start-up, but when tried that I got some incompatibility with my graphics card.

My issue is using only 1Gb when over 2GB are installed.

Jiri Fiala · September 3rd, 2007, 06:35 AM

Actually Vista handles more RAM better than XP. XP still tries to unnecessarily free up RAM, and as we know, free RAM means wasted RAM. Vista seems to take up more memory, but it uses it better.

Lars Siden · September 3rd, 2007, 02:38 PM

Hi guys,

On 32bit OS:s like XP and Vista 32, the common memory space for programs are 2 gb. 2gb are reserved for virtual memory and expansion cards.

With the /3gb switch you can tell windows to offer 3gb to 32bit programs, ONLY programs compiled in a certain way(flag) will be able to use the extra memory.

Or do as I, go 64 bit. I have Vista 64bit with 4gb mem. I start Premiere Pro and he gets his 2gb( Yeah I runt 64bit OS, but premiere is still 32bit) - and I start photoshop and he also gets about 2gb - so basically running 64bit gives you the possibility to run MORE 32bits apps with more available memory. And when/if Adobe release 64bits versions...

// Lazze

August 28th, 2007, 07:12 AM	#1
Buddy Frazer Regular Crew Join Date: Feb 2006 Location: Addison (Dallas) Texas Posts: 88	CS3 Not Using Available RAM I have a PC with 4GB of RAM and 4 virtual processors. Premiere CS3 uses all of the processors, but only about 1GB of RAM. Vegas consistently uses 2GB, which I think is the max for one program. This makes Premiere CS3 preview and render very slowly. Same thing happens with After Effects. Is there some setting I need to change for CS3 to use more RAM? Buddy

September 3rd, 2007, 02:38 PM	#7
Lars Siden Major Player Join Date: Mar 2003 Location: Sweden, Stockholm Posts: 469	32bit appz Hi guys, On 32bit OS:s like XP and Vista 32, the common memory space for programs are 2 gb. 2gb are reserved for virtual memory and expansion cards. With the /3gb switch you can tell windows to offer 3gb to 32bit programs, ONLY programs compiled in a certain way(flag) will be able to use the extra memory. Or do as I, go 64 bit. I have Vista 64bit with 4gb mem. I start Premiere Pro and he gets his 2gb( Yeah I runt 64bit OS, but premiere is still 32bit) - and I start photoshop and he also gets about 2gb - so basically running 64bit gives you the possibility to run MORE 32bits apps with more available memory. And when/if Adobe release 64bits versions... // Lazze __________________ Sony HDR-CX130,Canon 5DMKII,i7 930@4.0, 12gb memory, 3x SSD + 2x1Tb(stripe), Geforce 480, Dual 24", Win 7 x64

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September 1st, 2007, 10:13 AM	#2
Steve Wolla Major Player Join Date: Nov 2005 Posts: 477	What operationg system are you running? XP, Vista?

September 2nd, 2007, 07:57 AM	#3
Buddy Frazer Regular Crew Join Date: Feb 2006 Location: Addison (Dallas) Texas Posts: 88	I am running XP SP2.

September 2nd, 2007, 10:59 AM	#4
David J. Payne Major Player Join Date: Oct 2005 Location: Southend-On-Sea, England Posts: 368	i find that AE7 has the same problem.. i have 3gb but it only recognises 2gb on start up... I wonder if CS3 does the same thing? I'd certainly also like to know..

September 2nd, 2007, 02:58 PM	#5
Buddy Frazer Regular Crew Join Date: Feb 2006 Location: Addison (Dallas) Texas Posts: 88	I believe the "using on 2GB when 3Gb are installed" is a Win Xp issue. There is a /3Gb switch you can try on Windows start-up, but when tried that I got some incompatibility with my graphics card. My issue is using only 1Gb when over 2GB are installed.

September 3rd, 2007, 06:35 AM	#6
Jiri Fiala Major Player Join Date: Feb 2007 Location: Brno Czech Republic Posts: 453	Actually Vista handles more RAM better than XP. XP still tries to unnecessarily free up RAM, and as we know, free RAM means wasted RAM. Vista seems to take up more memory, but it uses it better.