this post was submitted on 25 Jun 2024
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Back in my day, there was a little speaker in the case that connected to the motherboard by a couple of wires.
It sounded terrible and we liked it, because it was better than nothing.
I still use those, how else can you hear your POST codes?
Higher-end motherboards have LCDs for that now
Otherwise I believe many still have lights?
Most BIOSes can show them on screen and most motherboards have LEDs to indicate WTF is going on before the screen becomes active. Also, boot up failures are extremely rare compared to 1990-s.
Many mainboards have moved to a small piezoelectric speaker, not dissimilar to the buzzer on an old style of digital watch (think Timex), rather than a speaker pinout for the system.
It's soldered right to the mainboard. It's different than the crap cone style system speaker.
The cone style usually was bundled with the case and was usually mismatched lowest bidder garbage.
I'm pretty sure that even very modern mainboards have a piezo style "speaker" on them, though many might forego this in favor of lights or something.