They sent me a KT7 instead of a KT7 Raid. I had nothing but problems with it. Got my KT7 Raid yesterday, it rocks,stable with no problems yet.
KT7 Raid
Thunderbird 1 gig at 1030
196 meg pc 150
Supermicro 750a w/Antec power supply
Soudblaster Live X Gamer
2 IBM 7200 ata 100s
1 IBM 7200 ata 66
Hercules GF2 32 meg
Hitachi 19" 753 Superscan
US Robotics 56k modem
Teac floppy
Philips 2x4x32 CDRW soon to be Plextor 12/10/32
My modem was conflicting with the soundblaster dos emulation driver, I set it to do print sharing and conflict disappeared. I  used the drivers that came with it, I have the 3.0 drivers I bought but they arent the same as the ones that come with it.
Rock Stable and fast, I didn't do raid yet, as I want to try winn 2000 on one of my 30 gig drives to test it out. 
I did have all kinds of stability problems and crashes with the KT7 they sent by mistake. Gladd I went the Raid now. Could have received one of their 5-7% return boards.
Stable as a rock.
The KT7 goes to 12.5 multiplyer in bios