QDI mainboard with bad caps - Need some help

[Behemot]

Re: QDI mainboard with bad caps - Need some help

Think it's called SB Link cause Creative developed it and it's their registered trademark

[Stefan Payne]

Re: QDI mainboard with bad caps - Need some help

What about FreeDOS? It should run all games plus support some more modern HW too.

Problem still is the software using it.

If you ever used a card that relied on emulation like a Gravis Ultrasound MAX like I did, you know what a pain in the arse that shit was.
Though the GUS worked with most games of the time and was later even supported natively.

Still, protected mode games didn't run with the megaEM TSR, only with that SBOS crap (supported protected mode but AFAIR sounded really shitty because the GUS couldn't do FM Synthesis). Only later versions of megaEM supported protected mode...

So in the end it comes to only a few options if you want DOS compatible Sound:

a) an ISA Soundblaster Card like Soundblaster 16 (if possible with a General Midi Daughterboard like Yamaha DB50XG) or compatible
b) a 100% hardware compatible one or something like that.


c) use emulation and face problems...


The Ducks Guts would be a gravis Ultrasound (MAX or ACE) with a Creative Labs Soundblaster 16 for Stereo sound if the GUS is not natively supported.
For natively supported games the Gravis Ultrasound also supported some kind of positional Audio like in DOOM...

In the later days where Miles Audio System was used, compatibility wasn't a big issue anymore because you only needed a Driver for that.

Oh and another problem with emulation is the use of conventional memory.
If you need 600k or even 610k concentional memory for some games, you're fucked pretty easily...

I don't remember wich game it was, but in the olden days, one of the games I played needed 610 or even more conventional memory. So you did some 'start menu procramming' with various options where you don't load any driver you don't absolutely need for that game.
The Keyboard driver was the first to go, then the CD-ROM drivers if you don't need it for that game...

[mockingbird]

Re: QDI mainboard with bad caps - Need some help

1. 5x Nichicon 6,3v 3300uf 105c H0302 HM(M)
2. 5x Nichicon 6,3v 3300uf 105c H0249 HM(M)
3. 3x Rubycon 16v 2200uf 105c S0245 ZL
4. 1x HD Z1 1500 6,3v
5. 9x OST 6,3v 1000uf 105c
6. 2x TAICON 6,3V 1000uf 105c(HD) 0240(M)
7. 6x NOVA 10v 220uf 105c
8. 4x NOVA 16v 100uf 105c Short
9. 3x NOVA 25v 22uf 105c
10. 7x NOVA 50v 10uf 105c
11. 5x NOVA 16v 100uf 105c Long
12. 1x NOVA 25v 220uf 105c
13. 2x NOVA 25v 33uf 105c
14. 1x Fujicon 16v 47uf 105c(M) RM

Great job on thoroughly listing the caps...

Here you go:

1) http://nl.farnell.com/nichicon/uhm0j...rad/dp/2113082
2) http://nl.farnell.com/nichicon/uhm0j...rad/dp/2113082
3) http://nl.farnell.com/rubycon/16zl22...rad/dp/1144694
4) http://nl.farnell.com/panasonic-elec...rad/dp/1219448
5) http://nl.farnell.com/panasonic-elec...rad/dp/2217555
6) http://nl.farnell.com/panasonic-elec...rad/dp/2217555
7) http://nl.farnell.com/panasonic-elec...rad/dp/2760323
8) http://nl.farnell.com/rubycon/16ml10...rad/dp/8126240
9) http://nl.farnell.com/panasonic-elec...rad/dp/2063079
10) http://nl.farnell.com/panasonic-elec...rad/dp/2217568
11) http://nl.farnell.com/rubycon/16yxf1...rad/dp/1144614
12) http://nl.farnell.com/rubycon/25yxg2...rad/dp/2346201
13) http://nl.farnell.com/panasonic-elec...rad/dp/2760350
14) http://nl.farnell.com/rubycon/35zlj4...rad/dp/1831278

[AndreStarTrek]

Re: QDI mainboard with bad caps - Need some help

Great job on thoroughly listing the caps...

Here you go:

1) http://nl.farnell.com/nichicon/uhm0j...rad/dp/2113082
2) http://nl.farnell.com/nichicon/uhm0j...rad/dp/2113082
3) http://nl.farnell.com/rubycon/16zl22...rad/dp/1144694
4) http://nl.farnell.com/panasonic-elec...rad/dp/1219448
5) http://nl.farnell.com/panasonic-elec...rad/dp/2217555
6) http://nl.farnell.com/panasonic-elec...rad/dp/2217555
7) http://nl.farnell.com/panasonic-elec...rad/dp/2760323
8) http://nl.farnell.com/rubycon/16ml10...rad/dp/8126240
9) http://nl.farnell.com/panasonic-elec...rad/dp/2063079
10) http://nl.farnell.com/panasonic-elec...rad/dp/2217568
11) http://nl.farnell.com/rubycon/16yxf1...rad/dp/1144614
12) http://nl.farnell.com/rubycon/25yxg2...rad/dp/2346201
13) http://nl.farnell.com/panasonic-elec...rad/dp/2760350
14) http://nl.farnell.com/rubycon/35zlj4...rad/dp/1831278

Thanks, you say just replace them with normal caps? Any reason why I should not use polymer caps?

[Behemot]

Re: QDI mainboard with bad caps - Need some help

It's the original thing so it won't bring any problems?

[AndreStarTrek]

Re: QDI mainboard with bad caps - Need some help

It's the original thing so it won't bring any problems?

Yoda voice: Like no problem I do

So would you take the same caps that @mockingbird posted or would you pick others?

And do you think I still should replace some with Polymer caps? I have no experience replacing normal with polymer caps. So i have to go 100% on you all replying on my topic.

[Behemot]

Re: QDI mainboard with bad caps - Need some help

As for me, I'd replace only the bad ones and the ones from known problematic series (HN/HM till 2005 etc.) with caps I took from dead boards, and most likely keep the rest… Guess that does not help you much

[AndreStarTrek]

Re: QDI mainboard with bad caps - Need some help

As for me, I'd replace only the bad ones and the ones from known problematic series (HN/HM till 2005 etc.) with caps I took from dead boards, and most likely keep the rest… Guess that does not help you much

I know, but i don't have spare dead boards only boards that are alive

[mockingbird]

Re: QDI mainboard with bad caps - Need some help

Yoda voice: Like no problem I do

So would you take the same caps that @mockingbird posted or would you pick others?

And do you think I still should replace some with Polymer caps? I have no experience replacing normal with polymer caps. So i have to go 100% on you all replying on my topic.

Just go with the list from Newark and replace all the caps. If you have the time and skill, then why not? It's not a good idea to start experimenting with, or paying a lot of money for polymers.

You could leave the audio circuit out if you're using an add-in sound card. But just to clarify, it is important to replace small caps in audio circuits. They do go short/open circuit there and cause the audio to stop working.