T 40 Mainboard - what is the use of ...

[mirka]

Hello,
At the T40 Mainboard there ist a U53 Atmel chip ... O.K.
But what is the use of the smal "Sister-Board" on the buttomsite of T40´s Mainboard ?

What kind of Information is stored there ? At the "Security-chip" ??
Sorry for my silly question

see you Mirka

[lukee]

Hi, if the chip is near to the LPT port then it should be security chip.

[RealBlackStuff]

The security chip holds specific data that, together with a private key, can encrypt your passwords for accessing Windows, websites, etc.
The (unique) private key only works with that specific motherboard. If you lose the chip, the board becomes useless.
You also cannot use that chip on another mobo!

[mirka]

Hi.
fine bussines... thank you all for your informations. Best regards Mirka