Vista x64 Ultimate and IEEE 1394 drive

Posted: 12-18-2006, 03:04 AM
I'm using Vista x64 Ultimate on an ASUS p5wd2 premium with 4 GB of RAM
installed. When I connect a Seagate IEEE 1394 drive 750 GB external disk
formatted NTFS and attempt to copy files to or from performance is awful.

On a hunch I used MSconfig to decrease the MAX boot memory from 4094 (the
default) to 4000. Sure enough performance is what I would expect from the
IEEE 1394 drive after reboot. But, I noticed that I am not in fact running
with 4000 MB of RAM. Task manager reports only 3070 MB. That's what I would
get if I had 3 GB of RAM installed.

Two questions:

1) Is Vista x64 "broken" for using IEEE 1394 disks when running with 4 GB
of RAM?

2) Why does reducing the configured RAM in msconfig from 4094 to 4000 result
in only 3GB of RAM being used?
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