Does it have to be exact same bios chip?
i have mx25c6473f from a desktop motherboard.
Both are 64 mb.🤷♂️
This will be my segue into owning a hot air rework station.
🥹
claws77
Senior Member
Last Activity: 08-01-2025, 03:50 AM
Joined: 04-30-2024
Location: Noida, Uttar Pradesh
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Coin cell battery [C] =2.9 V
battery [B] = 50%
AC [A] = 19V
The output at pin 8 of bios chip after plugging each powersource and their combinations in order - first coin cell, then battery then ac.
See image.
resistance across r2802 and r2804 is 0.8, 0.6 ohms.
leads resistance 0.6 ohms.
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