Plug and play just about mate but the boxes are a bitch to open.

The new cards are just a precaution.

If its a pace box, these are being recalled due to cooling issues, so you could play that card or if you phone them up tell them your box is playing up, wait for them to say
"Ok I see your out of warranty, thatll be £XXXX for a new box"

Simply say you've been a customer for x amount of years, want the box for noubt, when they say NO you simply say the magic word CANCEL and they will bend over backwards for you to keep you!!!!