I don't think eat those lemons intends CPU use won't get past 80% during rendering, the original poster, OP, intends that the rendering process locks up or stops at 80%. Is this correct eat those lemons?

If that's the case, I think it's definitely something to be concerned about.

DocSatori you are correct I cannot get the computer to finish rendering anything.

It did once but will not any more. Should I reinstall? should I try working on a totaly different project? I do have it running off of a different partition than what the operating system is on. is that affecting it maybe?

I don't know but thanks for the replies.

Could you tell us a little more? Which version of the program are you using, what are your basic computer specifications - operating system, RAM onboard, processor type - and the basic type and size of render you want?

Thanks

If your project has become corrupt, you can open a second window of VMS, select all events in the first, copy, then paste the events into the second window.

Only event effects will be copied over, not track effects, so if you have any track effects, you'll have to recreate them.

I am using a Phenom X4 965 underclocked to 3 Ghz. on a win 7 system with sony vegas 9 pro. I tried again last night and it rendered to 100% but would not finish. It was using an average of 25% cpu and it did not seem to be doing anything other than turning the frames red.(in the track view.) That was with a totaly new trial. totaly different video. any ideas?

<<<sony vegas 9 pro...with a totaly new trial...>>>

e.t.lemons,
where do you download from? The SCS site?

no I have the sony vegas pack with all of the sony software the new trial was a new trial of different video to try to render.

If you have only a Phenom X4 9650 (965?) at 3 GHz, it's overclocked not underclocked.

Plus, I'm reading mixed messages here. I understood your processor was running at 100% and only 80% of the video was rendering.

Now, you're at 25% CPU usage and you're unable to complete a render.

Well, there's so much going wrong here. To answer your earlier question, without a doubt you should 'reinstall' the application. You could follow some people's advice and use some third party 'registry cleaner' - but whatever - I'd just use my operating systems uninstall.

Even still, if you're overclocking, and you haven't reinstalled the application already, it's all getting pretty messy.

Not that's it's my business, but isn't there any possibility to upgrade your computer? Even just the CPU (which may be damaged frm overclocking)?

But I don't think this is a software problem. It looks like you have a hardware problem(s). There's not much more help I could be on this.

the cpu is a Phenom x4 956 stock clocked at 3.4 Ghz

the proccessor is not running at 100% it is running at 80% when it is rendering and when it gets to 80% it drops and goes down to 25%. I have gotten small projects to render but not big ones for some reason.
I am highliging the portions to be rendered so I don't know if that makes a difference

Well, I'll assume the '956' is wrong in your last post and the '965' is right in your earlier post.

That aside, you're right about the 'core speed'.

Have you some type of software like HWMONITOR to observe your system temperatures while rendering? That CPU gets hot.

But the fact it only reaches 80% use is weird unless the BUS of your motherboard is very low, or the RAM BUS is very slow...i.e. slower than the CPU's BUS, which is very high in theory.

But okay, 80% is very possible. The real worry is a drop to 25%. The only thing I can imagine causing this is overheating. It's unlikely anything in the software. Almost impossible.

Break off a part of your project bracketed around where the problems start and render that by itself while watching your temperatures (and maybe fan speeds). If it renders normally, then it's obviously a hardware problem, caused by overheating.

If it doesn't render normally, that doesn't rule out overheating, but we'd need to know more details about your project at that point. For example, what do you mean by 'highlighting.'

You may want to check your power settings in Windows. You can set minimum and maximum processor % in the advanced settings.

My cpu is not over heating, it is below 55C all of the time that is why I underclocked it.
nevermind about the highlighing I found out how to get arround that.
So today I tried a 10-15 min render and it went fine, then I went and tried a 40 min render and it stopped at 42% after 20-30 min rendering and then stayed there for 3 more hours. should I just reinstall sony vegas?

In my humble opinion, a reinstall can't hurt, but, some of the files for Movie Studio are hidden and not erased or overridden during registry cleaning and reinstallation.

Go ahead with the reinstall, but the next two things I'd like to know (it always speeds things up if people fill out their system specifications, but w/e) are:

1. RAM onboard
2. Are your media files, MS file of VF and render location all to the same drive?
3. How much 'clean' space on the render location drive?*

*It could be your comp has to stop, delete 'deleted file' space, then save part of the render, delete another block, render another block and so forth.

As I said before, this type of behaviour is hard to explain for the application and it has to be hardware or something weird in your project.

I have 8 Gb of ram and all the files are on the same disk. I have about 500Gb of space left on the drive.

Could the video source files be corrupt?

I would say, yes, if it always stops in the same spot.

I can't see how a media file could be corrupted and look fine on your timeline and preview window, but then mess up during rendering. If you suspect it's one or two clips, set the ones you suspect by themself in a new project and render them alone and see what happens. Intuitvely, I still feel it's hardware related.