Burnt Logic Board on a Hitachi Travelstar

[31center]

The other day I was upgrading my friend's laptop to a bigger hard drive. I removed his current drive a Hitachi HTS721010G9SA00 and installed the new Western Digital drive. Once done installing Windows and I hooked up his old drive to an external hard drive kit. Powered it up and a puff of smoke came from the drive . After unplugging it and removing the logic board I see a burnt spot on the board and knew that was the end. So I order the same model drive and replaced the logic board from the good drive. The drive now powers up but is not recognized by OS or BIOS. Upon closer inspection I noticed there are slight differences with each drive.

Comparison
http://imgur.com/ekFh5.jpg

1. Will this replacement board work?

2. Do I need the same exact hard drive? Identical?

3. Where do you recommend I look for a drive?

4. What other information would be helpful to you?


As a bonus I included a picture of the bad logic board if it helps. Marked the burn spot with a red dot too!!
http://imgur.com/kEKYs.jpg

PS: I know this is my first post and it lacks a proper introduction. Forgive me.

[Russwinters]

You are looking in the wrong place to find out if the logic boards match.


If you want to match the boards, why not look at the boards themselves? =)