I have a c640 which needs a primary bios password, and it appears to me that with a properly designed jumper wire assembly terminals 3 and 6 of the 24c04 chip can be accessed from the ram cover opening without further disassembly. They appear to be the third pair in. the picture I have from the "dellpass manual" is confusing, as the orientation of the enlarged view of the chip appears to be upside down as compared to the view which locates it. Can anyone who has done it confirm this?
Thanks for any input...

This is not rocket science. If it looks upside down treat it as such

Thanks for your reply. I had decided to do just that, it is good to have it confirmed.

i have same problem with dell latitude c640 which need a primary bios password, can anyone to help me...

I'm having the same problem with a c640 I recently purchased, I'm trying to find out where I can get some direction on the shorting the pins method I have the unit broken down so everything is easy to get to but now I need to know what to do any help out there let me know
Thanx in advance