Promise SX-4000 IDE RAID (Score 1)

I got this card along with 4 Maxtor 20 gig 7200 RPM drives, and 256 MB DIMM for cache. Before installing into small file server, tested it out to see what the raid 0 performance would be across these 4 drives. I was amazed that it seemed actually slower than my regular 15K SCSI drive. Not quite the performance I was expecting. It does do well with large writes, just access times seem like a regular 5400 RPM IDE drive. The card was like $175, and does RAID 0, 1, and 5. Can also do 0+1. The PAM utility (Promise Array Monitor) isn't quite intuitive, but gets the job done. It's a good card for simple reliability - just not as fast as one would think...