ChipChat 16 & 32

@5150.adf ChipChat Sound Card Drivers for DOS, Win (3.1, 95, NT), OS/2 (zipped image) (thx Lionel Harris!)
   Original image w/ corrupted SUPPORT.TXT file Drivers for DOS, Win (3.1, 95, NT), OS/2 (zipped image)
   Same as above but w/ fixed SUPPORT.TXT file Drivers for DOS, Win (3.1, 95, NT), OS/2 (zipped files only)
   Contains a slightly different SUPPORT.TXT file, missing boot files Windows utilities and samples (zipped image) (thx Lionel Harris!)

ChipChat Sound User's Guide (Rev. F) (from disk 1)
ChipChat Site (still alive)

ChipChat Sound Card
Wavetable Daughterboard
IRQ7 to IRQ5 ADF Hack
Generic Setup Values
General Technics Sound Card
ADF Section

Note: ChipChat 32 is the same card as ChipChat 16 but it comes together with a Wavetable module.

ChipChat Sound Card [P] [P] [P] [P] (photos by Alexander Paterakis)

J1,2 1/8" jack to Ultimedia?
P1 Line In
P2 Microphone In
P3 Headphone/Speaker Out
P4 Joystick/MIDI port
P5 Ultimedia Front Panel
P6 Sound Blaster CD Audio (GLGR)
P7 Generic CD Audio (GLGR)
P8 IBM CD Audio (RGGL)
P9 Generic CD Audio (RGGL)
P10 Unpopulated CD input
P11 Wavetable header
U1 ESS AudioDrive ES1688F
U2,3 Altera EPM7032LC44-15T EPLD
U4,5 LM386 Audio op-amp
U6 Phillips NE558D

Wavetable Daughterboard

The wavetable interface is standardized. Many different modules should be compatible with the ChipChat card.


P1 Base card header (male)
U1 Yamaha YMF704-S OPL4
U2 Yamaha YAC516-E DAC16-L
X1 33.8688 MHz xtal

ChipChat Yamaha OPL4 WaveTable midi card (OPL4-WT)

IRQ7 to IRQ5 ADF Hack

The ChipChat sound card is set to occupy IRQ7, which might cause strange effects under Win95 with LPT1. Edit the "fixed resource" IRQ7 to IRQ5 (default setting for LPT2) - and everything will be fine.

From ChipChat:
   To use IRQ5, you need to make the following modifications:

  1. Change @5150.adf file replacing "int 7" with "int 5"
    (you must re-configure your system after updating the ADF)
  2. DOS Autoexec.bat, change DOSMIXER statement from "-7" to "-5"
  3. Win31 SYSTEM.INI, change [auddrive.drv] from "int=7" to "int=5"
  4. OS2 Config.sys, change device=ES1688DD.SYS from "/I:7" to "/I:5"
  5. Win95, use device manager to change interrupt from 7 to 5
  6. WinNT, re-install and select interrupt 5

Generic Setup Values

Sound Address 220 (may interfere with a primary TR adapter)
Interrupt Level 7 (5 supported, I see 2, 5, 7, and 10 listed in W95 doc)
DMA Arb 1 (maybe 0,1,3 supported)
General MIDI MPU-401 330

General Technics Sound Card (from William Walsh, original HERE)

At first I didn't realize it, but this may be a relabeled ChipChat sound card... dunno for sure. Looks confusing to me, but that's what I get for asking and investigating.

Adapter ID is 5150 - same as the ChipChat version... but this card actually looks more like 5130 - the Piper Research SoundPiper... it would be the same card except for the sticker that's on the one Altera IC. Yet if we look at the SoundPiper page, neither of those adapters match mine and the one pictured above. So what the heck is going on here? ChipChat's picture (original) agrees with mine almost 100%.
Ed. Tom: Are all these cards different revisions of the same base design?

General Technics is still around. They sell industrial and rackmount computers of assorted types. At one time they also sold some different PS/2 and MCA upgrade parts. Don't go to their site expecting much in the way of information on these things.

ADF Section for 05150h "ChipChat Sound Card"

ChipChat Sound Card Selection
     <Enabled (io 0200h-020Fh 0220h-022Fh 0388h-038Bh 0330h-033Fh int 7 arb 1)>, Disabled

   Resources are fixed because many software programs assume and require these settings. Address Range (hex): [200-20F, 220-22F, 388-38B, 330-33F]
DMA Arbitration Level:[1], IRQ Interrupt:[7].

Content created and/or collected by:
Louis F. Ohland, Peter H. Wendt, David L. Beem, William R. Walsh, Tatsuo Sunagawa, Tomáš Slavotínek, Jim Shorney, Tim N. Clarke, Kevin Bowling, and many others.

Ardent Tool of Capitalism is maintained by Tomáš Slavotínek.
Last update: 08 May 2024 - Changelog | About | Legal & Contact