I have a 60Gb IDE hd at the mo, but I am thinking of adding another one to it. Would I get much speed increase if I had a SCSI card and HD of say 9 or 18Gb just to hold windows. I mean I can get a Wide SCSI card for around £15 and 9Gb HD`s are quite cheap too. It would just be WinXP, pagefile and a few programs on the SCSI drive as I would put games etc on the 60Gb.
Depends on mostly on the drives. Chances are, however, if they're 9GB drives, the performance difference between them and a good IDE drive is, at best, academic.
For good speed you'd need an U160 SCSI card (from $60, LSI "U160" card is the best bargain here) and a _recent_ U160 SCSI drive. Visit www.storagereview.com for an idea about how far back you can go in SCSI history before things get slower than current IDE drives.
I guess I`ll stick with IDE for now. I may try SCSI again sometime or even go for an IDE raid setup. But even old SCSI drives in a Raid array should be a bit quicker than the fastest IDE but then it comes down to cost.
Without knowing exactly what model SCSI drive you're talking about, I can't be sure, but cheap, small SCSI drives tend to be four or so generations old. Both SCSI and ATA drives have improved a great deal since then.