" This hard disk drive has also a SATA-150/SATA-300 jumper, which should be installed in case you find some incompatibility between your SATA-150 motherboard and your hard disk drive. We installed this hard disk drive on a SATA-150 motherboard and we found no compatibility problems at all and we hadn’t to install this jumper."
Samsung SP2504C 250 GB SATA-300 Hard Disk Drive Review on a SATA 1 and SATA 11 motherboards. click here
got the new drive(thanks again for all the help) , it was a sata 300 but has the jumper for sata 150, installed windows ok but now when installing some of my USB devices it say it needs file hidusb.sys, I have used the windows disk that came with the pc.