Help on Putting 240 HD in My TP720C

["Grace Episcopal Church" <gracech@gs.net>]

 Greetings!   This is my first post to the digest.  Here is my problem.  I
would appreciate your advice.
I have a TP720C.  Even though it is becoming something of a dinosaur, it
runs Win 3.11 very well and the active matrix screen is still great, though
smaller than what's out there now.

My machine can with the 160 meg HD.  I recently picked up a used 240 HD at a
very cheap price.  It doesn't seem to be a simple plug in swap.

I visited the IBM tech site and noted that there is a special up-graded
system board for a 720C with the 240 HD.  I am wondering if anyone knows
what is involved in making this swap?  Do I need to located a used system
board?  Or, do I have to replace a bios chip or something like that?  Does
anyone know where the necessary used parts might be located.

Thanks in advance for your help,  Wayne Wright