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 Are most ssd hard drives 2 .5 inch and do they work well on desktop pc ' Forum 2 hard drives show in bios only 1 in windows Forum 2 PC 's Only 1 With a Hard Drive Forum 2 portable hard drives , using both macbook + PC , which format for each Forum Hard-Drive Works on 1 PC , But Not The Other? Forum PC freezing, only safe mode works Forum Usb 3 0 external hard drive works only on usb 2 0 Forum Usb 3 0 external hard drive works only on usb 2 0 Forum Can I use a SSD for my OS and a enternal HHD as my only hard drives .? Forum 3TB Hard Drive only showing 2 TB in control panel... Forum Only half my 16GB of ram works , other half is hardware reserved. Forum External HDD Only Works in USB 2 .0 not 3.0 Forum Seagate 3TB hard drive only showing 746gb Forum My pc only has one hard drive lead can i add a slave/master one Forum RAID O Setup - Need Recommendation(s) on Best Hard Drives 2 Buy Forum 3 tb hard drive only shows 2 tb. Whats the problem? Forum SSD swap for Avatar 145A2 Ultrabook? Forum How do you guys structure a dual hard drive setup? Forum [Solved] Macrium Reflect does not show flash drives Forum SEARCH HELP FOR read only files and how to change them Forum More resources Read discussions in other Storage categories Hard Drives DVD Drives DVD Writers Optical Media Flash Media NAS/RAID SSD Western Digital !