PC Can't find Sata card Or new hard drive?

[campbell]

Hello,
I have a Compaq Presario SR5109UK Desktop. I have added a secondary hard drive. To do so i needed to install a Sata port card. I installed a 2 port 6gbps PEXSAT32 ( also seems to be known as Marvell91xx ).My pc cannot find the card, so obiously it can't find the hard drive either.I am not by any means a computer expert. I have googled the problem, but i can't find a solution. Under device mamager the card does not show up. But it was installed perfectly....

 

[hang-the-9]

Try installing the card in another slot. You don't even get the "found new hardware" message?

 

[noidea_77]

Make sure the card is properly seated in the slot. It may help to unscrew the bracket for a test.