Hi and thanks.
Was having the same issue with my i7 (system crashing - NOT ENOUGH MEMORY) Selecting 2 processors in the MSCONFIG Boot Advanced Options prevented crashes regardless of output quality or applied effects.
Unfortunately it also hobbles the system to such a degree that the benefit of the i7 processor is lost.
However, at least I know if I want to push the processing to the extreme, how to go about enabling my machine to cope.
In the meantime I will do my regular processing under the default i7 BIOS BOOT settings.
For interest a test encoding of a 3 minute video clip (MPEG2 720x576 average bit rate 5000, 25fps) produced these results:
BIOS BOOT Setting 2 processor mode
MPEG2 1920x1080i CBR 8000 Quality 7
Encode time 13:15 (mm:ss)
Enhance Video 85% Video Stabiliser 10%
Note 1 only possible to encode complex editing with these extreme settings in 2 processor mode
Note 2 not practical/possible to surf web or do anything else on computer while in this 2 processor mode
BIOS BOOT Setting for i7 default (no processor mode selected)
MPEG2 1920x1080i CBR 8000 Quality 7
Encode time 4:15 (mm:ss)
Enhance Video 85% Video Stabiliser 10%
Note 1 this is the absolute limit for my i7 machine before crashing, with either a longer clip, additional filters or effects.
Note 2 am able to do normal web surfing, you tube viewing etc in the normal i7 mode
BIOS BOOT Setting for i7 default (no processor mode selected)
MPEG2 1920x1080i CBR 8000 Quality 7
Encode time 0:54 (mm:ss)
No Enhance Video or video stabiliser
Note 1 fastest and most efficient use of the i7 multi-core. Am able to use the pc while encoding with no noticeable impact on other tasks.
Cheers
HARDWARE: ASUS i7 2.6 Ghz, 6GB DDR3, Nivada GeForce 9800GT 1GB, SATAII 1TB, WIN7 64bit