On Thursday 08 May 2003 22:03, Oliver Schulze L. wrote: > I disabled the parity in the SCSI board and the problem is solved. > Is there any problem in disabling the parity in a SCSI board? Yes, it will lead you to silent error witch is very bad thing. Adaptec cards is known to have very sensitive bus receivers/transmiters and require good cable/terminator. Try active terminator even if there is only one disk on the bus, also change your 68 wire symmetric cable to 68 wire twisted pair (signal/ground) one. Cheers, Marek.