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32 bit apps on Vista64

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turk_1000   11-18-2008 at 10:44:13 PM

I couldn't think of a good way to phrase this question for Google so I'll take a shot here.

I'm running Photoshop7 (32 bit app) on Vista Ultimate64 with 8GB ram. Photoshop lets you select how much of the available memory you allocate to it, but it only shows around 1.7 GB free. All of my drivers are 64 bit and I don't have other 32 bit apps running. I want to know if there is a way (similar to PAE) to force the OS to use the higher memory and leave the lower 4GB for 32 bit apps.

If you don't have an answer but know of a good Vista support group, tell me.

Thanks

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4ryan6   11-19-2008 at 03:15:35 PM
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Obviously you have some serious video capability for only 1.7G to be available, would you please list your system specs?

Vista 64 will treat your 32bit apps with the same restrictions the 32bit apps were originally under as memory allocation is concerned with a 32bit OP/SYS.

As far as a work around Vistas automatic designation of alloted memory to the 32bit apps, I don't have that answer, if its even possible.

If your bios has memory remapping features that may help you, otherwise the genius you need hasn't discovered this thread yet.

Heres a little info.

http://www.adlinktech.com/solution [...] 0423-2.htm


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Chuck Norris   11-23-2008 at 05:00:07 PM
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In case this is useful, the recently released Photoshop CS4 is 64-bit capable so it should take better advantage of your extra memory.

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Zoron   11-24-2008 at 06:14:30 PM
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PAE isn't available in Windows desktop OSes anymore... only server. Seeing as you're running 64-bit, the whole idea is moot anyway. PAE only works if you have drivers and software to support it. If Photoshop isn't PAE capable, then having the capability would be usless, as Photoshop would still be restricted by the limits of 32-bit addressing. I'm not sure if PAE-aware 32-bit apps would be able to make use of more memory under 64-bit or not.

Basically, if you want Photoshop to utilize your memory, you'll need a 64-bit version of Photoshop. (As per the previous poster's suggestion). Even if you could enable PAE somehow... there's no guarantee that it would work.

------------------------------ Desktop: Windows 7 Professional 64-bit; Intel Q6600 CPU; E-VGA 780i SLI motherboard; E-VGA E-GeForce 8800GT; OCZ Vista 4GB dual-channel kit; Ultra X2 750W power supply; 2 x Seagate Barracuda 7200.11 500GB in RAID 0. Laptop: Acer Aspire 8730-6314;
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