I'm trying to replicate the problem that this creates so that I'll be able to recognize it if it happens unexpectedly. I tried this with my Sound Blaster 2 Pro (CT1600) and both AdLib and sound effects work fine when tested with Duke Nukem.
Does this only affect a subset of the Sound Blaster ISA cards?
I will definitely have to get one of these then. I have a Roland LAPC-I in storage that still needs testing.
On eBay there used to be one guy selling cable adapters with a converter to supply -5v. They were more convenient than the Voltage Blaster because it doesn't take an ISA slot.
The following link has an slightly larger (two of them being PAS16 cards) list of cards which requires -5v: ISA Cards & Devices Requiring -5V
VIA C3 Nehemiah 1.2A @ 1.46 GHz | ASUS P2-99 | 256 MB PC133 SDRAM | GeForce3 Ti 200 64 MB | Voodoo2 12 MB | SBLive! | AWE64 | SBPro2 | GUS
Of all the Sound Blaster lineup only SB 2.0 (CT1350) is affected to the best of my knowledge.
Of Pro Audio Spectrum line the early PAS16 models are affected, the later ones (sometimes named Pro Audio Studio 16) are not.
Roland LAPC-I is definitely affected as I tried it myself with a common ATX PSU.
Hardware comparisons and game system requirements: https://technical.city
