Swapping the hard drive, with so many trick because the screw-hole are different from the early hard disk to the more modern one.
So wait, it starts in CRT mode and then after bios initialization switches to LCD timings screwing VGA output? Also weird that it remembers without CMOS battery.
Im still interested what the LCD timings are 😀 That $5 "CY7C68013A-56 EZ-USB FX2LP USB2.0 Develope Board Module" is a no brainer if you are a tinkerer and like to measure something high speed from time to time.
https://github.com/raszpl/FIC-486-GAC-2-Cache-Module for AT&T Globalyst
https://github.com/raszpl/386RC-16 memory board
https://github.com/raszpl/440BX Reference Design adapted to Kicad
https://github.com/raszpl/Zenith_ZBIOS MFM-300 Monitor
rasz_pl wrote on 2024-02-04, 07:39:So wait, it starts in CRT mode and then after bios initialization switches to LCD timings screwing VGA output? Also weird that it remembers without CMOS battery.
Im still interested what the LCD timings are 😀 That $5 "CY7C68013A-56 EZ-USB FX2LP USB2.0 Develope Board Module" is a no brainer if you are a tinkerer and like to measure something high speed from time to time.
no, start with internal lcd, then i set “crt” in bios and it remember it until i disconnect the notebook from the main power for a couple o hours. i think some kinsd of capacitor keep the preference for a limited time..