The
on hardwareluxx mentioned plugs (2.00mm (SPI/TPM)) are too big for the A300 spi header. You need maybe 1 mm plugs.
These 2 mm connectors are suitable for the panel 1 header for start, reset, power- and drive led. A header which is multiple times bigger than this tiny spi header.
Without housing the bended pins (for grip) have minimal gaps:
Too little for kapton tape.
The space between the pins are ~1 mm. So
this connector has to big spaces. You will need a cable which equals
this, but with a tinier connector.
The connector is called:
1.27 mm pitch idc 10p
In addition you need an adapter like this but with 1.27 pitch pins:
This kind, with 8 pins.
Now you have only to rewire the 1.27 mm pitch idc connectors.
I have measured the CH341 programmers voltages, only one voltage is at 3.3 V:
The 1.8 V adapter should still do the voltage regulation for the data lines per chip and the digital resistor.
An
explaination video. The data lines at 5 V should do no damage, but i would consider malfunction. It would be better to order the rev. 1.5 of the programmer, with voltage switch:
The X300 @ bios version 2.10 has no cold boot bug and is not resetting the bios. I bought the A300 4 months before the release of the X300 in 2020.
But be aware the bios version 1.90 is not able to boot further than the warning scrren with "new cpu installed, ftpm psp nv corrupted or ftpm /psp nv structure changed.
Only n key is working with some keyboards, connected with front panel USB-A. Before i connected the working keyboard, i cleared cmos 2 times (which results in different text, it removed the get into bios notice).
After getting into windows you have to start the "Restart to UEFI" tool in order to reboot after n button into the bios and update the bios version to 2.10.
The Asrock Auto Installer bios function is also useless, it will appear on windows anyway.
The 1.70E beta bios for the A300 has the same skin as the X300 bios.
Does the X300 bios on A300 contain ddr4 ram speeds above 3200 mhz?
