so the PC mobo has and addin, PCI card sound"?
2004 PC mobo relic, now and 13yo to you.
no card told. (fail)(buy only w7 allowed card if must)
you did say CARD so means NOT ON-BOARD sound chip.
relic P4 PC. mobo
this trash mobo uses EOL DOA, via chipsets, that do not allow w7
Integrated Realtek ALC662 audio CODEC chip
this chip set is dead too, from maker realtek.
if you knew that, and added a secret sound card.
this mobo only does windows 200o to XP says so on page one at gigabytes this mobo.
so w7 does not belong hear unless replacing every thing there that fails 1 by 1, , pain. ive done this vast times, for folks willing to.
last xp driver is here for realtek
as a rule only this OEM maker PC can make there sound chips work (as a team of parts) not simple as many think, even has mixer chips and more, all custom to maker.
yes cards work better,
on this mobo the VIA chip and codec chip must work or sound will be dead. and is common this. lacking no vista driver up, ever/
this mobo has no SATA ports nor any PCI express card slots at all.
and finding PCI (non express) cards that can run w7 can be hard.
for sure now. yes possible, with careful searching specs of relic PCI cards.
also the VIA chip dead makes The ethernet port dead too. and usb dead and IDE drives dead,vista up.
never buy VIA chipped mobo. or pain is all there is. no drivers.