Thx!
Retro-Gamer 😀 ...on different machines
I have a Hauppauge Win/TV-Prism (ISA bus) with the same header, it connects to the VESA feature connector of the main graphics card. Probably pass-through, hence the VGA connector on the Hauppauge card.
i386 16 ⇒ i486 DX4 100 ⇒ Pentium MMX 200 ⇒ Athlon Pluto 700 ⇒ AthlonXP 1700+ ⇒ Opteron 165 ⇒ Dual Opteron 856
"Time, it seems, doesn't flow. For some it's fast, for some it's slow.
In what to one race is no time at all, another race can rise and fall..." - The Minstrel
//My video channel//
I think I have a pretty decent collection of cards and I own exactly one with something connected to the VESA connector. It is this EGA card...
I have no idea what the daughterboard does, but it is on a (TwinHead?) PCG Photon MEGA PLUS card that says it is for EGA/CGA/HGA/MDA, and the daughterboard also says 1987 PCG PHOTON on it. There isn't much on it that could identify what it is for. Sadly, I can't see what the frequency of the crystal is. It was either rubbed off or is on the side facing the board. If anyone has any clue as to what this would do, post here.
I think the only other VESA daughterboards I've seen attached to a card were the MPEG ones used on PCI cards. Obviously, this one isn't for MPEG video.
That isn't a feature connector but something else entirely. The pin count is different as is the gender of the connector.
T-04YBSC, a new YMF71x based sound card & Official VOGONS thread about it
Newly made 4MB 60ns 30pin SIMMs ~
mida sa loed ? nagunii aru ei saa 😜
Tiido wrote on Today, 08:37:That isn't a feature connector but something else entirely. The pin count is different as is the gender of the connector.
Oh, you know, you're right... I didn't even notice that it had more pins than the VESA feature connector.
I guess we'll just leave this here as a warning that some old cards have things that are not a VESA feature connector... 😅
I am still curious as to what it does though.
EDIT: It is worth mentioning, this 32-pin feature connector is apparently standard for EGA cards and was on the original IBM EGA. Check page 76 (page 80 of the pdf) here:
https://minuszerodegrees.net/oa/OA%20-%20IBM% … s%20Adapter.pdf
The wikipedia page for EGA describes it as follows:
"The original IBM EGA card includes a feature connector (blue connector J4, see first photo on this page), providing access to two RCA connectors at the back of card, in addition to several analog and digital signals that the EGA adaptor can be configured to use."
So, while it isn't a VESA feature connector, it is in a sense a precursor to that standard and serves a similar purpose.
Ozzuneoj wrote on Today, 10:41:I am still curious as to what it does though.
Some sort of frequency generator? Looks like it has two empty places for more crystals.
