[Eamonn Cleary]

Hi Geoff,

I am having similar problems.

I thought I had it solved but the problems are back. One solution to try may be to check if you are running 64bit kernel, as this can interfere with FCP as it is a 32bit application.

To find this out go to : about mac; more info; software and there will be a line saying ” 64bit kernel” and it will say yes or no. its quite easy to switch it off and it doesn’t effect any 64 bit programs you are running.

https://news.softpedia.com/news/Download-Mac-OS-X-10-6-32-64-bit-Kernel-Startup-Mode-Selector-1-2-1-120399.shtml

Now this DIDN’T fix my issues.

I am on a 12 Core Mac Pro with 6gb Ram
with the 5870 Graphics card.

I have done a clean install of FCP 7 onto it and I find that when I run two screens after a few minutes the screen starts to judder. I get out of memory messages, when i try to render or export and at least once a day when I use the find tool the systems crashes. I have used FCP since 4.5 I have always run from Macbook Pros and just upgraded to Mac Pro but I feel like I have take a step backwards I know I dont have a lot of RAM but I also know that FCP cant use more the 2.4gb any way so it cant be that.

The problems seem to be aggravated when I use the second screen as a display, I tend to have clients in the edit and I have always used the screen to showcase my cuts to them. Does running this use more RAM?

Just to clarify I this is happening on multiple projects. I normally convert everything to prores 422 on this project I am using Pro 422 HQ at the behest of the producer, this is supposedly loved by FCP but I find that any overlays, simple text or images need to be rendered (sometimes, Red sometime Green never consistent)

I dont think the problem is hardware, I have seen enough posts out there to know that this is a fairly common problem, as i said earlier i thought i had is sorted with the 64bit kernel but the problem (while better) is still there.

Can anybody shed any light?