I recently found this CGA card on an auction site.
When I took a closer look I saw that it has a missing crystal (and a lot of bent parts). When I asked the seller about it he claimed that this model has no crystal because it is integrated in the main chip. Is this a load of BS or what?
Looks a lot like the one in this thread, layout wise .
Looking for info about this card (CGA - III / P)
No crystal either. Were clock generators a thing back then ?
Interesting. I haven't seen a CGA card without a crystal yet.
It seems that this CGA card uses the ISA bus clock frequency. They added the XL "socket" to allow the user to add a crystal with a different frequency.
The crystal for CGA was part of the mainboard from the beginning, it's not needed on any CGA card.
Vedd fel velem a kapcsolatot, egy csomó kérdésedre tudom a választ, sylvester decany néven megtalálsz fb-n.
MOD EDIT: Google Translate
Contact me, I know the answer to a lot of your questions, you can find it on sbvester decany on fb.
BlackSoft wrote on 2020-04-28, 13:40:Vedd fel velem a kapcsolatot, egy csomó kérdésedre tudom a választ, sylvester decany néven megtalálsz fb-n.
Posts MUST be in English or else action will be taken. I had to use Google Translate to see this was not a spam post. Consider this a warning.
vetz wrote on 2020-04-28, 16:26:I had to use Google Translate to see this was not a spam post.
Seems spam to me. First post and just advertising a Facebook page..?
derSammler wrote on 2020-04-28, 16:30:vetz wrote on 2020-04-28, 16:26:I had to use Google Translate to see this was not a spam post.
Seems spam to me. First post and just advertising a Facebook page..?
I'm not a spam. I'm hungarian like Miphee, who has a many questions. I know the answers for most of it, so I'm trying to help.
