DVD-Rom, Burner, HDD detection Problem

[OCZElite]

Motherboard: MSI K7T266-PRO-2 (Old computer).


Ok, i was recentley cleaning my computer, and took everything out. When i put everything in connected everything back togethe, my hdd was not dected and so was my dvd burner and dvd rom. I was wondering would this be the power supply?. Or the ide cable? helpe me please


HDD- Maxtor 80GB

 

[dopefisher]

DId you put them back in EXACTLY the same way they were when you took them out?