PC only works with 2 hard drives Tags: Hard Drives Seagate Storage Last response: November 19, 2012 7:28 PM in Storage Share casipy November 12, 2012 1:06:17 PM Hello, I've a PC with 2 hard drives (seagate st3500620as) and only works when both are connected I want to change one for a bigger one but didn't work only one of then. More about : works hard drives scorpinock2 November 19, 2012 7:28:12 PM Are you in a RAID configuration? If so that's the cause. If not then make sure your not replacing your boot disk. Can't find your answer ? Ask ! Publish Related resources Solved2 PC's Only 1 With a Hard Drive Forum SolvedDropped external hard drive still works, now host computer only "sees" the drive, NOT any of the data. Forum I want to add internal hard drives to my PC but it only supports 3....how do I increase this ???? Forum Solvedhow to have only 1 hard disk drives instead of 2 Forum SolvedPC Only works with one stick of Memory ( on slot A2) Forum Are most ssd hard drives 2.5 inch and do they work well on desktop pc' Forum External Hard Drive Works Only on 50% of Computers Forum Solved4TB hard drive only noticed as a 2TB hard drive (?) Forum SolvedExternal Hard Drive only get 2tb out of 3 Forum Hard Drive docking station meant for all Hard Drives only working with larger Desktop Hard Drives and not smaller Laptop ones? Forum 1 PC with 2 synchronized hard drives Forum 2 hard drives show in bios only 1 in windows Forum 1 SSD and 2 Sata II Hard drives in ACHI only???? Forum SolvedIs there a 2TB hard drive that will work with a DDR2 PC Forum Solved3TB hard drive now only recognized as a 2TB hard drive cannot find the missing TB Forum I have a Samsung 1tb external hard drive. It's only a couple of months old, but it suddenly doesn't seem to work. I'm not sure Forum Laptop has 2 hard drives only one displays in my computer Forum SolvedI installed windows 8 on a 3TB HDD but it only registers as a 2TB hard drive Forum Solved4TB Hard drive and I can only use 2TB Forum SolvedHow to Get Old Hard Drives to Work on a New PC Forum More resources Read discussions in other Storage categories Hard Drives DVD Drives DVD Writers Optical Media Flash Media NAS/RAID SSD Western Digital !