[dba-Tech] Operating System not found

got it back up, but I question whether this is the solution or just 
temporarily working:

this PC has:
1 - one system drive = C: (IDE) - now replaced with a 300GB seagate
2 - two SCSI drives in a dynamic stripset =R:
3 - two SATA drives on an expansion board S:
4 - DVD burner
5 - Grapic card Saphire Radeon X1950 Pro
- Power supply Hiper HPU-4M670-SU (670 W, 720 W peak) - 5 separate outputs 
for drives (1-5 above)

What I did so far:
disconnect power for the SCSI drives
result: works ok

now I exchanged the power connections of R: and S:
works ok and I am presently running Check on R:

The 5 +12V-outputs are speced 16A each, 5V is 30A
all 5 together max 465 W
assuming 2A per HD, this is roughly half the max allowance.

so, I'm a bit puzzled now, what else could be wrong??????????

Lembit


----- Original Message ----- 
From: "Lembit Soobik" <lembit.dbamail at t-online.de>
To: "Discussion of Hardware and Software issues" 
<dba-tech at databaseadvisors.com>
Sent: Sunday, October 14, 2007 8:15 PM
Subject: [dba-Tech] Operating System not found


>I am replacing the system disk in one PC with a larger one.
> I have the original disc intact
> and I have installed the system on two other disks now and had it running.
> (made an image of the original disk and restored it to the new disks by
> running them as slave).
> Now all of the sudden I get
>
> Operating System not found
>
> when I try to start it with either one of these disks.
> when I try to run the PC, I have now only one disk as master connected, 
> and
> yes the power cable is alse connected and the disk is spinning.
>
> Now I started the PC from an Arconis disk, and there I can see the System
> disk with all the data on it, so it cannot be the cable.
> What else can suddenly fail such that I get this error?
>
> Thanks
> Lembit
>
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