I would look at the BIOS to see how your system tries to boot. First 
floppy, hard drive, CD .... etc. the BIOS may be confused on which HARD 
DRIVE to boot from, thus no boot.
    On my system First is HD( System ), CD, and DVD ......

Russ Poffenberger wrote:
> This is correct. Once you enable the RAID configuration, the underlying
> filesystem on the disk, even if Windows was currently installed on it, may
> become invalid. In addition, Windows needs a different driver loaded (as was
> mentioned by Tony) to even see the drive since the disk controller presents
> a different HW interface to the PC once RAID is enabled. That is why the OS
> becomes inoperative when you enabled it.
>
> At the very minimum, you would have to do a "repair" install of the OS
> (booting from the Windows CD), loading the proper RAID driver. I have never
> tried this, so it still may not work. It may be required to do a full format
> and install of Windows.
>
> For either the repair or full install, when the Windows CD boots, you will
> need to press F6 when prompted, and insert a floppy with the RAID driver or
> Windows will not recognize the RAID array.
>
> Having said that, I would recommend having the OS on a third disk that is
> not in a RAID configuration. When using RAID 0, the filesystem is laid out
> as alternating stripes (the stripe size) between the members of the array.
> If ANY of these members fails, the whole filesystem is typically lost. By
> having the OS on a separate disk, you reduce the chance of an unbootable
> system because of a RAID member failure.
>
> Unless you need the speed or single large volume of a RAID 0 setup, you may
> wish to format them as two separate filesystems.
>
> Russ Poffenberger
> [log in to unmask] 
>
> -----Original Message-----
> From: Personal Computer Hardware discussion List
> [mailto:[log in to unmask]] On Behalf Of Tony Mayer
> Sent: Friday, October 05, 2007 7:42 AM
> To: [log in to unmask]
> Subject: Re: [PCBUILD] RAID configuraion
>
>
> Robert -
>
> You only need two drives...but when you activate the RAID, you will not 
> "see" 2 drives.  They will appear as 1.  You then need to install the OS 
> on that single drive (make sure you have the driver disk for RAID that 
> comes with your motherboard...you might even need it to be on a floppy...)
>
>
> Tony Mayer
>
>
>
> Robert Pettigrew wrote:
>   
>> I built a computer with a MSI mobo (K9n4 500 SLI) 2 Seagate HD 250 GB, 
>> 2GB Muskin memory, AMD 6000+ cpu.Do I need 3 hard drives to make raid 
>> work,1 for OS and 2 for raid? I have the two drives working fine as 2 
>> drives,but system won't boot up when i activate raid. I thought I 
>> followed the instructions that came with the mobo and I had friend 
>> come over to try his luck. ANY help would be apprieciated
>>
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>
>               The NOSPIN Group is now offering Free PC Tech
>                      support at our newest website:
>                           http://freepctech.com
>
>               The NOSPIN Group is now offering Free PC Tech
>                      support at our newest website:
>                           http://freepctech.com
>
>   

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