Only 2,75GB RAM Usable, regardless of installed amount.

[derekimo]

If your old motherboard came with XP then you can install XP on it.
In order to properly install Windows 7 you will need to buy Windows 7.

Thought as much. Then it should, theoretically, work normally, once i put the board the Win 7 PC came with back in, right?

Then everything would be back the way it was before i tried to upgrade the system.

Yes, putting it back the way it was with it's original win 7 configuration you started with should work normally.

 

[Slyve]

If your old motherboard came with XP then you can install XP on it.
In order to properly install Windows 7 you will need to buy Windows 7.

Thought as much. Then it should, theoretically, work normally, once i put the board the Win 7 PC came with back in, right?

Then everything would be back the way it was before i tried to upgrade the system.

Yes, putting it back the way it was with it's original win 7 configuration you started with should work normally.

Alright, Thanks!