Impedance for 1998 Sound Card Recap

[Joe Zimmerman (Gast)]

Dear Fellows,

I own a 1998 sound card which seems to need some new caps. I've heard 
too low series resistance of modern caps is no good.

Please tell me what series resistance was common 22 years ago?

Thank You

Joe

[wiesel (Gast)]

This is not a question of '22 years ago' but does instead depend on the 
capacitors purpose.

Take a look at the originals, find their data sheet and look out for 
their properties. And if the originals are not available any more, look 
for replacements.

[Joe Zimmerman (Gast)]

Please tell me: Which ESR value was common in electrolytic caps (100u, 
220u and 470u) two decades ago?

[Peter D. (peda)]

Joe Zimmerman schrieb:
> I own a 1998 sound card which seems to need some new caps.

I wonder, how you has detect it.
Sound cards need no very high current gulping. So there ist absolutely 
no reason, why the caps should be defective.

[Joe Zimmerman (Gast)]

Peter D. schrieb:
> I wonder, how you has detect it.

Actually the card works fine when PC is freshly booted.

The problem arises after awaking from Suspend to RAM, then it's dead 
until next reboot.

And that's a new problem which wasn't existent a while ago.

Therefore, I guessed the caps.

[Thilo R. (harfner)]

Joe Zimmerman schrieb im Beitrag
> Actually the card works fine when PC is freshly booted.
>
> The problem arises after awaking from Suspend to RAM, then it's dead
> until next reboot.
>
> And that's a new problem which wasn't existent a while ago.
>
> Therefore, I guessed the caps.

Highly unlikely.

Most probably a driver problem with suspend to RAM, triggered by some 
change in the system. Perhaps a recent Win 10 update?

[MaWin (Gast)]

Joe Zimmerman schrieb:
> Actually the card works fine when PC is freshly booted.
>
> The problem arises after awaking from Suspend to RAM, then it's dead
> until next reboot

This obviously has nothing to do with the capacitors. Its a software 
problem.

[Joe Zimmerman (Gast)]

Thilo R. schrieb:
> Perhaps a recent Win 10 update?

It's an Arch Linux :(

Now I managed to reset it after wakeup.

sudo sh -c "echo 1 > /sys/bus/pci/devices/0000:05:01.0/remove"
sudo sh -c "echo 1 > /sys/bus/pci/rescan"

Then it works again.

But really?!?

[Sven D. (Gast)]

Really! 
https://duckduckgo.com/?q=archlinux+soundcard+not+working+after+suspend