What type of POST card, have you used it before to know that it works... is it by any chance one of the ones that has both PCI and ISA connectors on it?

Generic chinese post card with both slot connectors, I've used it for quite a long time and it's always been fine.

>changing constantly as in the vid clip

no vid clip in your post
try recording with your phone in slomo mode to see which post codes are looping

rasz_pl wrote on 2024-08-31, 00:09:

>changing constantly as in the vid clip

no vid clip in your post
try recording with your phone in slomo mode to see which post codes are looping

On my phone that backfires, then all that can be seen is the flashing segments as they refresh 🙁
I wish there was a POST code datalogger or a Pi Pico project type thing that displayed a list of POST codes on a TFT

OP: Interested to see the video, is it changing values like you might see when using an ISA soundcard and playing Doom?
Is the POST card the only card connected right now?

Perhaps you're facing an ISA BUS interface problem where a diagnostic card can only do so much. Currently I'm trying to track down a fault on a 286 motherboard where it seems to work but POST codes are meaningless and then I tried SuperSoft diagnostic BIOS (sadly only good for a 286) which allowed me to work out that I'm missing one data bit (D0) on the ISA bus so POST codes were getting corrupted in just the same way ASCII text is so FAILED displayed on screen becomes GAIMED because D0 is stuck high 😒

Thermalwrong wrote on 2024-08-31, 01:08:

On my phone that backfires, then all that can be seen is the flashing segments as they refresh 🙁

you need a phone with a slomo mode, 120/240fps

Thermalwrong wrote on 2024-08-31, 01:08:

I wish there was a POST code datalogger or a Pi Pico project type thing that displayed a list of POST codes on a TFT

there is https://github.com/TheRetroWeb/PicoPOST PicoGUS should totally get a firmware for it

rasz_pl wrote on 2024-08-31, 01:35:

you need a phone with a slomo mode, 120/240fps […]
Show full quote

Thermalwrong wrote on 2024-08-31, 01:08:

On my phone that backfires, then all that can be seen is the flashing segments as they refresh 🙁

you need a phone with a slomo mode, 120/240fps

Thermalwrong wrote on 2024-08-31, 01:08:

I wish there was a POST code datalogger or a Pi Pico project type thing that displayed a list of POST codes on a TFT

there is https://github.com/TheRetroWeb/PicoPOST PicoGUS should totally get a firmware for it

That's pretty nice actually, thanks for the link 😀 It shows the last 5 codes which makes it more useful than my current POST readers that only show the final code. I've got a spare OLED screen like this and some Pico boards so I should probably give this a go