Hi everyone,

I am running a CT1600 in my 486DX4 system 4MB RAM. When running DOOM, the system will freeze after ~30 seconds or so only when the music and sound effects are set to Sound Blaster. Does anyone have some diagnostic tips to help me narrow down the cause? A visual inspection of the card reveals nothing, solder points look good and no sign of cap failure. Here is its config:

1set blaster=A220 I5 D1 T4
2set sound=c:\sbpro
3c:\sbpro\sbp-set /M12 /VOC:12 /CD:12 /FM:12

running sound blaster control 1.21