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Best solution
Storage Expert
Try
to shrink your 320GB to a much smaller C: partition e.g. 30GB.
If you need to backup and delete some files, do that first.
Then, restore your private data files to a dedicated data partition.
The bigger problem is that Intel strongly recommends
installing an OS with the BIOS set to RAID mode initially
e.g. when running Windows Setup the very first time.
This is a very good recommendation, because it facilitates
enabling RAID
arrays at any time after initial OS installation.
Normally, switching from either IDE or AHCI modes to RAID
requires a fresh install of the OS, and simply making that change
in the BIOS will most probably cause a BSD.
This procedure may help you, by invoking F6 and loading your
RAID device drivers from a floppy disk:
http://www.informationweek.com/news/windows/showArticle...;jsessionid=ATER1BJCZNSN0QSNDLQSKHSCJUNN2JVN?articleID=189400897&_requestid=319026
Also, there is a freeware program that did NOT work for us,
but you might want to try it (AFTER backing up your system):
http://drnathan.teamhackaday.com/software/raidfix/
A third option is to create a drive image of your existing C: partition,
and save it to an external medium, ideally after shrinking C:
down to something manageable e.g. 30-50GB.
See www.partitionwizard.com
for a good freeware program.
Then, buy 2 new identical HDDs for your RAID 0 array;
enable RAID
mode in your BIOS;
enter the Intel Option ROM
and add those 2 new HDDs to a RAID 0 array; then,
restore your drive image to that RAID 0 array.
If you've done everything correctly, you should be able
to add your Seagate as a non-RAID member, using that Option ROM; and,
you can read your drive image file from that non-RAID Seagate HDD
when you restore that drive image to the new C: on your RAID 0 array.
Finally assign your existing 320GB Seagate to data
storage / backup duties.
I hope this helps.
MRFS