The computer has: CPU Intel core 2 Quad Q8200. O/S Linux Mint 17. M/B Intel DG31PR. Ram 4GB. HDD Hitachi Sata 160GB, Seagate IDE 80 GB. The M/B supports 4 sata hard drives and has an IDE socket that is being used for a Sony dual layer CD RW. I plugged the Seagate IDE HDD into a spare plug on the IDE ribbon and set the bios for auto after removing the shorting pin thing from the Seagate HDD so it would be a slave and not try to boot from the windows O/S on it. Ive done a bit of a search and found someone who used an adapter card on his M/B to get Sata and IDE hard drives working because he didn't have an IDE socket on his M/B but mine has got one,I just need to find out how to get it to work?