1080p choking my new 8 CORE Mac Pro!!

[Mark Maness]

Take out 4 gig of RAM and then try it.

_______________________________

Wayne Carey
Schazam Productions
https://web.mac.com/schazamproductions
schazamproductions@mac.com

[Shane Ross]

[joseph wilkins] “am running footage off a Drobo firewire 800. “

That is your problem. The DROBO is designed for redundant backup, NOT as a media drive. You need to get drives that are designed to handle the high data rate of video…especially HD video.

Shane

GETTING ORGANIZED WITH FINAL CUT PRO DVD…don’t miss it.
Read my blog, Little Frog in High Def

[Zane Barker]

The Drobo is not built for speed it is for data redundancy. I recomend using a proper raid to edit from.

There are no “technical solutions” to your “artistic problems”.
Don’t let technology get in the way of your creativity!

[Jeremy Garchow]

[Wayne Carey] “Take out 4 gig of RAM and then try it. “

The new MacPros work in multiples of 3 for RAM.

I mirror the Drobo comments.

Jeremy

[Mark Maness]

Really… That’s a strange sizing method. I was not aware of this on the new Macs.

So would that mean you use sizes of 3, 6, 9, 12, 15 gig?

You learn something new everyday. Good Deal!

_______________________________

Wayne Carey
Schazam Productions
https://web.mac.com/schazamproductions
schazamproductions@mac.com

[Jeremy Garchow]

12 would be the only possible combo.

Jeremy

[Jeremy Garchow]

Sorry, 6 and 12. So it’s not mulitples of three, I don’t know the correct algebraic term.

From barefeats:

MEMORY RIDDLE: WHEN IS SIX MORE THAN EIGHT?
We were able to clearly illustrate the bandwidth advantage of three memory modules per memory bank in the Nehalem Mac Pro using DigLloydTools (DLT) stress test which does a memmove() to all of unused physical memory. We put 12 GB (6 x 2G) in first. Ran the test. Then installed 16GB (8 x 2G) and ran the test.

See graph here:

https://www.barefeats.com/nehal04.html

DON’T PANIC
If you have memory installed in all 8 slots of your 8-core Nehalem (or all 4 slots of a 4-core Nehalem), it may not penalize your real world application performance. The vast majority of real world applications do not saturate the memory bandwidth. Plus it’s better to drop from triple channel to double channel performance than to run out of memory and start doing virtual memory disk swaps.

[Christopher Delaine]

Actually;

We have a brand new 8 core Mac pro with a new Kona LHi card and we expreniced the same thing running off of G-Raid FW800 drives. EX cam is not that data rate intensive, 35mbits a sec. At first I thought it was a drive problem but we use the same drives to edit on laptops and older Mac Pro’s. I concluded it was the Kona card but now I don’t know.

[Bob O’brien]

FWIW: I shoot 1080p (HQ) on my EX3 all the time, edit on my MacBook Pro 2.0Ghz with 2 Gb RAM, playing back from a FW800 LaCie drive, and have no problems at all. When I set render settings to ProRes HQ, it understandably does cause stuttery playback, but good enough. The straight 35mbs footage, though, plays just fine.

CAMERAS
Sony EX3 & Sony DXC637/PVV3 Betacam-SP

PORTABLE EDITING
*MacBook Pro – 2.33Ghz – 2Gb RAM
*Matrox MXO / 23″ Cinema Display

DESKTOP
*DualG5 2Ghz w/2.5Gb RAM
*UL4D SCSI Card
*HMV800 DualMax RAID0
*AJA IO
*Sony 2800

SOFTWARE
*OSX10.4.11, QT 7.5, FCP 6.0.4, Livetype 2.1.3, Soundtrack Pro 2.0.2, DVDSP4.2.1, Adobe CS3 Prod Suite