You should liist the contents of your autoexec.bat and config.sys files.

Are there any other devices using DMA channels, other than the floppy controller?

There are two programs which can set the IRQ and DMA channels on these Sound Blasters. DIAGNOSE.EXE and later SBCONFIG.EXE. Try the latter program. Drivers should be available at the Vogons driver library.

Check no resources are reserved in the bios. Set escd to yes and reboot. Maybe check the jumper settings (though that won't affect the low DMA I think).

What os are you using?

And what is your motherboard?

Which CT-2760 do you have? The original or the rev. 3?

http://www.yjfy.com/images/oldhard/sound/CT2760.jpg

http://artofhacking.com/th99/i/C-D/53601.htm

http://www.yjfy.com/images/oldhard/sound/CT2760_3.jpg

http://artofhacking.com/th99/i/C-D/53599.htm

For the original, jumpers are not going to help since IRQ and DMA are set in software. However, I would make sure a jumper is over the JP1 Other pin, as it will disable the CD-ROM interfaces, one of which uses an IRQ and DMA.

For the rev. 3, there is an EEPROM onboard which presumably is there to "remember" the IRQ, DMA and CD-ROM settings so you don't have to load diagnose or sbconfig on every bootup. You may want to disable that EEPROM, as it may be conflicting with your desired resource settings, or not run diagnose/sbconfig with the switch that writes the IRQ and DMA settings to the board. Try removing or inserting JP1 to enable or disable (don't know which is which.)

Thanks guys for your help.

My card is the original CT2760 not ver.3 (it is a long beauty 😀 )
For the drivers I'm using original drivers for CT2760 from the TheMAN's SB16 and AWE Compilation CD - great compilation. I will try SBCONFIG.EXE.

My motherboard is Lucky Star LS-P54CE with Pentium 166MMX CPU.
I tried this card on the 2 more boards. On Pentium Pro 200 Mhz and on Pentium III 300Mhz Celeron with the same results.

My OS is Win98SE (DOS 7.1) and I'm booting into DOS through Multi autoexec/config.

The other HW I have in the machine is Gravis Ultrasound Classic, Roland SCC-1, PCI Network Card DE-528 and ATI RAGE XL PCI. I tested the card without any other cards inside the machine. In the bios I have set IrQ 3, 5 and DMA 1,3,5 for legacy ISA. My floppy drive and controller are disabled in the bios. For the harddrive I'm Using 64 GB SSD with SATA to IDE converter. I also replaced that HDD with normal IDE drive to just test it and install on that drive DOS 6.22. After i reformatted the drive with Windows ME hoping that the newer drivers will pick it up the card and again nothing. So I tried to install OS/2 😀 nothing really works. I have feeling that the card is gone but I just don't want to give up 😀 For me is strange that in diagnose everything works and shows DSP version only the DMA is gone.

Here is the photo of the card.

I did test SBCONFIG.EXE with no luck. But what I want to write is that I found on YouTube few videos how to fix fried motherboard or video cards with interesting method - Bake them in the oven 😉

I know that sounds crazy, but I had here one old SB16 PNP that was fried for a while and I was keeping it just for sentimental values. I heated up the oven to 380F and put the card in for 8 minutes. I was little bit nervous but i know that i'm not loosing anything so I was interested if the HW somehow survive 😉 After waiting 20 min to keep the card cool down I put it into the machine and my bios just announce that SB16 PNP is present 😉 Unbelievable.... I did same with the AWE32 but the issue didnt get fixed, but the card is otherwise functional - high DMA works so music in Doom and other games that support AWE is working fine, just the sb16 part of Awe is fried.. I just want to share this unusual method of fixing almost lost electronic parts 😉

dank0 wrote:

Here is the photo of the card.

That is a nice photo you took. What settings and equipment did you use?

This may be a dumb question, but I forget if the AWE32 requires two sicks of 30-pin SIMMs for the expansion memory to work correctly.

I'm using for all SB settings A220 I5 D1 H5 P300 E620 T6 or you meant the camera what took the picture?

I disabled the RAM expansion. I cannot fit the card into my LOW profile box with second RAM 😀