So you say:
1) Sold pin on BIOS chip;
2) Turn windows on (i've read Dos is better, should i use it?);
3) Flash the original bios;
4) Turn off system.
5) unsold.
Am i right?
1) Solder wire between pin 1-8 on BIOS chip(suggest that you check your BIOS chip datasheet in case its a different chip, you need to turn CS high(to positive/VCC) in order to disable BIOS);
2) Turn windows on;
3) When windows finished booting, clip of the wire(now the BIOS will be enabled, but GPU will not read content from it)
3) Flash the original bios;
4) Turn off system.
5) unsold.
I have done this but just held a paper clip in place until into windows then removed it, flashed orig bios and rebooted worked fine.
Just need to hold the clip in place without moving for 20 seconds or so.