SOLVED: Getting CT2770 to work \ VOGONS

SOLVED: Getting CT2770 to work

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First post, by jheronimus

Posted on 2016-04-27, 22:03

jheronimus Offline

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Hi, all

I got a SoundBlaster CT2770 card for my Compaq Presario 433 machine (486DX2@66, MS DOS 6.22). For some reason I can't get any sound of it in games or Diagnose.exe. The only thing that works is audio CD playback using Creative's bundled qcd.exe. Here are my steps:

1) installed the SoundBlaster Value from three floppy images from this disk.
2) tried playing some games
3) tried running Diagnose.exe, no error messages and no sound
4) tried removing the second ISA card (a multi I/O with only one LPT port enabled) — there are only two ISA slots in this machine
5) checked if all onboard ports (COM/LPT/Gameport) are disabled

Autoexec.bat:

2016-04-28 00.52.45.jpg

Config.sys:

2016-04-28 00.52.57.jpg

msd.exe IRQ tab:

2016-04-28 00.51.24.jpg

Last edited by jheronimus on 2016-04-28, 19:12. Edited 1 time in total.

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Reply 1 of 6, by Imperious

Posted on 2016-04-28, 03:07

Imperious Offline

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Make sure the correct Address (A=220) is configured in the hardware https://th99.bl4ckb0x.de/i/C-D/53592.htm

How much free conventional memory do you have? Try loading config.sys drivers after the memory managers, not before.
I can post my systems config.sys and autoexec.bat files later.

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Reply 2 of 6, by jheronimus

Posted on 2016-04-28, 16:18

jheronimus Offline

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Imperious wrote:
How much free conventional memory do you have? Try loading config.sys drivers after the memory managers, not before.
I can post my systems config.sys and autoexec.bat files later.

Please do. I'll make sure to post mem output in a couple of hours. Thanks!

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Reply 3 of 6, by clueless1

Posted on 2016-04-28, 17:11

clueless1 Offline

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You might also try drivers from Creative Labs still-maintained site:
http://support.creative.com/Downloads/welcome.aspx

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Reply 4 of 6, by bjt

Posted on 2016-04-28, 19:07

bjt Offline

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You should be able to boot to DOS without config.sys or autoexec.bat, run diagnose.exe and get FM music without any other configuration.
If diagnose passes all the tests but is still inaudible it points to a hardware problem.
Could you post a photo of the card. There are some jumpers that would result in no sound if they were missing.
Does this machine have onboard sound?