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Anyon else having their Mac Pro lock up with mavericks? Ever since I updated to mavericks, it will just all of a sudden lock up and a few seconds later beach ball of death strikes for the final blow. Nothing responds and then I have to Dow force shutdown.

I been running windows more and no problems so it's obviously software. Maybe it's the drivers for the titan locking up since it seems like the latest drivers are lacking for mavericks?

No, no issues with my 4,1. I'm running a GTX 760, FWIW.

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This is why I'm still on Snow Leopard. Never crashes, never beachballs, never has any problems whatsoever. Every time I tried upgrading it was a disaster.

That's fine, but the folks who want to run standard PC video cards from NVIDIA don't have that option. I did enjoy snow leopard, nothing against it...it was certainly speedy on my 4,1....but I haven't had any problems with 10.7 through 10.9 on my Pro.
 
My Mac locked up again after a restart. Then it beach balled and probably 5 minutes later, all the screens went white but I still had cursor movement.

I had my Mac lock up after restart. I zapped the PRAM with no luck. I restarted in safe mode and transferred most of my data. Then restarted normally. everything runs slow. I get a spinning beachball that locks up the current app for 5-120 (or longer) seconds. When that happens I get a lot of kernel[0]: disk3s2: I/O errors in the console and a kernel_task that takes up 450+ MB of RAM.

Some of my data and applications could not be copied because of read errors. I did a fresh install of Mavericks and I've seen one recurrence so far.

I think my HD may be going south.

I have an early 2008 Mac Pro.
 
I had my Mac lock up after restart. I zapped the PRAM with no luck. I restarted in safe mode and transferred most of my data. Then restarted normally. everything runs slow. I get a spinning beachball that locks up the current app for 5-120 (or longer) seconds. When that happens I get a lot of kernel[0]: disk3s2: I/O errors in the console and a kernel_task that takes up 450+ MB of RAM.

Some of my data and applications could not be copied because of read errors. I did a fresh install of Mavericks and I've seen one recurrence so far.

I think my HD may be going south.

I have an early 2008 Mac Pro.

I haven't even been using mavericks because everytime it locks up. I still haven't restored it yet but I got an EFI graphics card now so maybe I'll try it this weekend if I get time.
 
running 10.9 on a 5,1 Mac Pro (stock except for extra RAM) without any glitches. The only strange thing is that I can't seem to get it to log into a citrix client from work (which my other macs seem to do fine).

Sorry for your trouble, though. That's miserable.
 
Took all weekend to finally get mavericks on a USB stick. Bad enough the mac wouldn't run long enough to download 10.9 from apple again. Had to pause and just do a restart every 30 minutes or so. Mavericks was also more difficult to throw on a USB than lion or mountain lion was.

Well anyways; I finally got it restored with a Freah install and I'm transferring everything over from time machine backup. Hope this solves the stability issues.
 
This might not be helpful, but have you tried swapping out your main "Macintosh HD" system drive for a new drive that you have never used before, then installing Mavericks on that. Just a thought.
 
Hmmm. Since yesterday, everytime I've restored from my time machine backup, it seems to freeze up on the "less than a minute remaining". It would beach all each time.

I created a new account and then tried to restore from TM backup again and it seems to freeze but doesn't beach ball this time. The blue swirling progress bar isn't swirling either. I've let it sit on that for a few hours now too.

I think I never should have upgraded to Mavericks now :( guess I'll use a Mac to run just windows lol
 
Hmmm. Since yesterday, everytime I've restored from my time machine backup, it seems to freeze up on the "less than a minute remaining". It would beach all each time.

I created a new account and then tried to restore from TM backup again and it seems to freeze but doesn't beach ball this time. The blue swirling progress bar isn't swirling either. I've let it sit on that for a few hours now too.

I think I never should have upgraded to Mavericks now :( guess I'll use a Mac to run just windows lol

If your drive was bad before, then your TM backup probably is too.

Don't restore from a TM backup. Start with a new/clean/fresh install, then individually copy over any important files after you know it works.
 
Well I just tried for the about the 10th time, but this time I used the 8800 and removed the titans all together and mavericks installed and so did migration assistant. I'm running all the updates.

I figured when I tried to update the firmware, I was informed to remove the titans and had to have an EFI GPU installed. Well that advice paid off again. :D

Now I hope mavericks proves stable and I'll put the titans back in.
 
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