Error when I do a RAM preview

[Jay Cordova]

I’ve got what I think is a memory related problem with RAM Preview. Machine is 2 x 3 GHz Intel; 9GB of memory. AE CS3 memory settings are the default: Max Memory Usage 120% = 3.0GB, and Max Ram Cache Size 60% = 1.8GB. No apps running other that AE CS3.

I can’t preview over about 30 seconds at 720×486, if I’m lucky. Go figure. Further, if I shift the work area to a totally unrendered area, it won’t get rid of previously rendered frames in order to render frames in the new work area.

And it’s 30 seconds max with a test comp using only straight video and audio (no filters at all).

If I “purge all”, I only regain the ability to RAM preview less than 30 seconds of the timeline.

Other notes are that the green rendered frame indicators on the timeline are not correct sometimes. I can get a preview of a work area only half covered with green “rendered” indicators.

Does anyone have any idea what might be wrong here??

Jay Cordova
Springboard Creative/Atlanta

[Steve Roberts]

Can you start a new thread, jay?

[Leonardo Boher]

Hello bro… I would like to know how did you get Ae workiong with 3 GB of RAM and 1.8 for Cache… How did you configured it?

I have 4 GB of RAM and 3.4 GHz Dual Core Intel Processor, a video card of 512 MB… Could you explain what you have written?

Thanks, in advance

Damn!!!

[Leonardo Boher]

I found the answer here: https://generalspecialist.com/2006/11/avoiding-after-effects-error-could-not.asp

The topic is not about how to solve the RAM Preview Error, but it helped me to solve it. Weird!!!

Damn!!!

[Touko Maksimainen]

I’m afraid that’s not doing it for me, my settings were already tweaked with the help of that article. Also I have no problems doing regular renders. It’s just that I can’t RAM preview at all, always getting the same “need 2 or more frames” error.
This problem came out of nowhere. I used to work fine but then one day it didn’t and there had been no change to the configuration of the computer either on the software or hardware side.

[Touko Maksimainen]

Also I’d like to add that it doesn’t work at all anymore, with any project. Not even when I Purge all or restart the computer.

[Bailey Kalesti]

I know this thread is really old, but it’s one of the top results. So, here’s my solution (I’m using CS4): Edit -> Preferences -> Memory and Multiprocessing. From here you can check on the “Render Multiple Frames Simultaneously” check box and then adjust the slider to allocate memory usage between “Longer RAM Preview” and “Faster Rendering”. If you want to have better RAM previews before you render, slide the slider closer to the Longer RAM Preview side. This worked for me! 🙂