Hi Jackie, I have only one hard drive on a sata my self on a soltek mother board. I am not an expert with the sata set up but I do know that on my mobo there was a seperate bios I had to go through to set up my serial hd. I can only assume you would set up a second hd through the bios and not have to worry about switching any jumper or such. Hope that helps some, Scott > Hello: I have Asus A8N sli computer -- I have one Maxtor Sata 1 which is > set > as Master in the bios I ordered another Maxtor Sata he gave me Maxtor Sata > II 300gb do you just set the configuration in the bios ? I was looking > at > it I don't see any jumpers to switch from master to slave that is easily > moved? Is it possible you don't touch the hard drive itself but just > configure it in th bios? Thank you - Jackie > > The NOSPIN Group has added a new feature on our website, > web based bulletinboard for questions and answers: > Visit our sister website at http://nospin.com > > The NOSPIN Group has added a new feature on our website, web based bulletinboard for questions and answers: Visit our sister website at http://nospin.com