Not possible.
Because you have RAID0, you're tied to the onboard controller on your current MB.
If you took those 2 drives to another PC, they won't be seen as a single RAID0 drive, and so Windows won't be found, so even if you could fix the other issues listed here, you wouldn't be bootable...the data isn't readable.
The only exception is if you can take the 2 drives put them into the new PC, and have them recognized as a RAID0 array, *and* you must make sure the drive is readable (boot with a BartPE CD with the right RAID drivers on it or something...) - if you can do that, you can fix this problem, since the RAID array / disk controller brand would be the same, so you'd simply move the drives themselves.
You're probably out of luck. This is why I tell people not to use integrated RAID controllers - you're stuck with that motherboard, and if it ever dies, you've lost all your data. Buy an aftermarket RAID controller (PCI), if you have some odd need for RAID on a home PC, but don't use integrated RAID.