I'm interested to know what the deal is too, if there is one...anyone else?

Just make sure you leave SOME amount in the RAM preview buffer (even just a couple of MB seems to help)- as this figure can hugely impact the speed of rendering stills.

Here is a link to a thread on an other forum where this was first discovered

I had a huge project roughly 80 minutes, 3 cameras, color correction, layered montages, etc. that I needed to render today. I kept getting stack dumps at 29%. I set dynamic ram preview to 0 and the render worked flawlessly.

JAB

I'm am also interested in this also?

Maybe a servey on waht everybody has there ram previews set to?

I have ram turbo on my setup and it monitors ram activity....

Installed is Ballistix DDR400 1 gig of ram (Vegas ram set to full)

I've noticed in previewing at good full "not to monitor" that ram is used up in no time - within minutes if fx are applied the ram is down to 5 -10 megs and system becomes sluggish.

If I selectively pre-render the timeline, Vegas prenders in little nodes but sometims creates a huge 5 minitues+ render node that sucks the ram down to 5 - 10 megs and slows the render down.

But I find rendering anything to a file (not pre-rendering) doesn't effect ram? ie: MPeg or different file type other than NTSC DV

Liam (and others): I'm getting confused by the replies on this thread. Some are shutting down RAM completely to improve rendering time, others leaving 100 MB. Following your link to the CC thread, it appears that you turned RAM back on, from 0 to improve rendering performance.

So, could you or someone summarize the net conclusion of this discussion for me?

My setup has 1.5 GB installed. I've rendered a few short projects on this setup using V5, but have yet to tackle what is my typical size project - usually 6-10 tracks (three or four video tracks) with cropping of entire project, other FX, etx - total duration - 1hr - 45 min.

I've rendered projects of the described size on my old setup, 900 mHz processor with around 340 MB RAM - encountered no problems - and I knew nothing about enabling or disabling amount of ram available for Dynamic Ram Preview.

I don't know if I will have a problem on this machine or not, but am interested in knowing the final concensus from this discussion just the same.

Thanks.

Caruso

Caruso, if you move it all the way to zero, rendering will be tremendously SLOWER if you have some still images or titles over still images where multiple frames do not change. With the setting set to zero, EVERY one of those frames must be rendered separately. With the setting above zero, the unchanged frames will zoom by.

In a test that Liam and I run, he was getting a render times in the multi-minute range where mine was completing in closer to 30 seconds. He raised the ram setting above zero and was, once again, seeing my render times. If you go to the link he posted, exact times are given.