advice needed pre-soldering bios chip
I managed to remove the dead bios chip from this Dell Motherboard, but it looks like I've managed to pull off the top layer of the board by mistake on some of the pins. I have a replacement bios chip with a working bios programmed in and ready to solder back in place. My question is, have I managed to fry this board permanently, or is there any chance soldering the new chip back on will work? Is there anything I can/should do before attempting to solder new chip back on?
Thanks, Pingers
1 Answer
You kind of messed up the desoldering. Typically you solder pins onto metal plated contacts, and you desolder them from it. If you use too much or too little heat, the contacts are damaged. You've lost roughly half your solder pads.
In future, you'd want to add some lower temperature solder, and use a solder sucker/braid to get it off. Desoldering is one of those skills that needs a ton of practice to get right
In theory you may be able to replace these with fine jumper wires, especially if the trace lengths are not critical. That said, there's no real guarantee this will work reliably and soldering jumper wires in situations like this are somewhat advanced.
