Dallas module battery replacement...

Depends on the make how to remake the clock batt. The SG Thompson chip I retrofitted a batt onto had the leads on the right side of the chip and they were easily exposed with a knife. The dallas chips are constructed a bit differently with no gap between the sram on the bottom and the batt/oscillator in the epoxy 'brick' on top. The dallas chips are often 'missing' a few pins. Those pins are likely bent upward and are the leads for power, ground and oscillator connections. The dremel drill will likely clear a path but you are going to have to take each model chip and learn how it is constructed to fix it. It is perfectly ok to use a 'clone' batt to power the sram. I used a 4.5volt batt I scrounged from a 286 to power the sg thompson chip while I waited for the Dallas to arrive. Still, it is far easier to just replace the thing. I had to hang a batt on the old one because it was very difficult to find the correct replacement part. I hear they won't really be in the channel til next year! I got mine straight from Dallas and they had nearly none. I might have gotten thier last DS1642! -- ----------------------------------------------------------- Jeffrey S. Worley Technical Services Bits & Bytes Computer Services Inc. 1979B Hendersonville Road Asheville, NC 28803 828-684-8953 - voice 0900-1700 five days 828-687-9284 - 24hr fax Who is General Failure and why is he reading my hard disk? Technoid(a)Cheta.net -----------------------------------------------------------