Any ideas on how to clear a BIOS password on a Thinkpad 701C?

[Jim Scheef]

Mark,

Are there just pads or are there pins on those pads? On a normal MB the 
procedure to drain the CMOS is to short the pins with a standard jumper. 
Try shorting the pins for 15 minutes with no power. If that has no 
effect, try power with the pins shorted. This is quite a crap shoot. 
Some MBs require a jumper on similar pins to enable a BIOS update so 
there is no universal procedure.

BTW, I bought a 701c as well. Mine is pretty rough. The battery pack was 
swollen and leaking so I need to open up the case and do some cleaning 
before I get to see if I have the same problem.

I guess you haven't gotten to the point where you find out if Warp has 
the drivers for the 701c or not. Let me know what you find.

Also... the CMOS backup battery is soldered? It's not a nice replaceable 
button battery that you can just pop out and replace? Oh joy.

Jim

madodel wrote:
> I'm trying to get a TP 701c I bought off of eBay working to install OS/2 
> Warp on.  But it has a password set in the BIOS.  According to the 
> service manual ftp://ftp.software.ibm.com/pc/pccbbs/mobiles/tpvol2.pdf 
> there are two Power-On Password Bypass Pads on the bottom of the lower 
> system board, but no instructions on what to do with them.  Do I need to 
> short them out?  If so how?  Someone else suggested desoldering the 
> backup battery, but if I can just short two pads, that would be 
> preferred.  Right now its completely disassembled.  I have two other 
> 701c machines, but they each have their own problems.  Worse case if I 
> can't clear the password I can try to take the display off this one and 
> put it on the 701c that has a display problem.
> 
> Mark