Hi -- CS5 is running slowly on on MacBook Pro, which has a 2.8 Ghz intel core 2 duo processor which = 64 bits. Adobe's web page at this link
shows the following on max RAM
|CS5, 32 bit||Mac OS||2.1 GB|
|CS5, 64 bit||Mac OS||As much RAM as you can fit in your computer|
When I open CS5 on my Mac and look at the menu under "Photoshop > Preferences > Performance" it clearly shows max RAM of 2100 MB (or 2.1 GB). This would be correct if my Mac was a 32-bit machine, but it's a 64-bit machine. Has anyone else seen this, and has anyone figured-out how to correct it?
-- Thanks in advance, Ole Pa
Hello, you need to check if Photoshop was not set to start in its 32 bits mode: http://helpx.adobe.com/photoshop/kb/plug-ins-photoshop-cs5.html#main__ How_to_run_Photoshop_CS5_in_32_bit_and_64_bit_modes
Verify it's x64 by doing Help - About Photoshop and looking for x64 in the About dialog. If it doesn't say x64 there, you're running the 32 bit flavor.
The setting for changing the max RAM you're allowing Photoshop to use is in the Photoshop - Preferences - Performance dialog. Note that 64 bit or no, it won't let you use it all up, as it knows your system needs some of it to run. But you can probably give it more than you are at its current settings.