"When I put the 20 in alone, it says I have no HD"
What says you have no hard drive - the BIOS?
When you put it in alone, are you changing the jumper to Master - are you definately setting the jumper correctly?
Fujitsu Lifebook P727 laptop review
Lightwell software lets you create mobile apps without using code
Best value Mac: Which is the best £1249 Mac to buy
Comment désactiver les programmes qui s'exécutent au démarrage de Windows 10 ?