I just got this "mystery" motherboard that I can't find any info on the internet.
MBO is labeled "kp920124332 v2.20"
The board is in excellent condition, the battery doesn't seem to have leaked, (is this a rechargeable battery?).
If anyone can help I would appreciate it.
That battery is a Varta type. It will eventually leak. I highly recommend getting rid of it and replacing with something that won't.
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Remove the battery nonetheless and you can connect a 3.6V lithium battery instead.
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Ok, but can you tell from the picture is it rechargeable or not? What type i can solder on?
I can go for the external solution, i have 4-pin header, but i don't know anything about the jumper settings that regulates 3.6V vs 6.0V (not explained/printed onboard), no manuals etc.
That's why i asked for help 😀
(damn! i see now small spots of the leak on this photo...).
And if it is already 3.6v adjusted, 4-pin header...where is "positive", where is "negative" and what are other two pins for?
Nibitor wrote on 2024-03-01, 19:08:Ok, but can you tell from the picture is it rechargeable or not? What type i can solder on? I can go for the external solution […]
Ok, but can you tell from the picture is it rechargeable or not? What type i can solder on?
I can go for the external solution, i have 4-pin header, but i don't know anything about the jumper settings that regulates 3.6V vs 6.0V (not explained/printed onboard), no manuals etc.
That's why i asked for help 😀
(damn! i see now small spots of the leak on this photo...).
And if it is already 3.6v adjusted, 4-pin header...where is "positive", where is "negative" and what are other two pins for?
Well, you can flow the traces or better use a multimeter. But it must be something like this
Positive - N/C - N/C - Negative
You can use Panasonic NCR18650B 18650 3.6V rechargeable battery.
A-Trend ATC-1020 V1.1 ❇ Cyrix 6x86 150+ @ 120MHz ❇ 32MiB EDO RAM (8MiBx4) ❇ A-Trend S3 Trio64V2 2MiB
Aztech Pro16 II-3D PnP ❇ 8.4GiB Quantum Fireball ❇ Win95 OSR2 Plus!
Today I received the external case for 18650 from AliExpress. I'll try to trace the lines, but I'm wondering if I reverse the polarity by accident, can I do any damage?
Nibitor wrote on 2024-03-08, 17:20:Today I received the external case for 18650 from AliExpress. I'll try to trace the lines, but I'm wondering if I reverse the polarity by accident, can I do any damage?
Well, yes it can damage the EPROM chip. If you have any spare LED, connect it to the external battery pins while the motherboard is on.
A-Trend ATC-1020 V1.1 ❇ Cyrix 6x86 150+ @ 120MHz ❇ 32MiB EDO RAM (8MiBx4) ❇ A-Trend S3 Trio64V2 2MiB
Aztech Pro16 II-3D PnP ❇ 8.4GiB Quantum Fireball ❇ Win95 OSR2 Plus!
