BCCode translation please

I'm new to figuring out BCCodes. I've loaded the XP Support tools and ran dumpchk on the 155 or so dump files to see:

Unloaded modules:
b8cc0000 b8ceb000 kmixer.sys Timestamp: unavailable (00000000)
b9b3c000 b9b67000 kmixer.sys Timestamp: unavailable (00000000)
b9b3c000 b9b67000 kmixer.sys Timestamp: unavailable (00000000)
bac4f000 bac7a000 kmixer.sys Timestamp: unavailable (00000000)
ef687000 ef688000 drmkaud.sys Timestamp: unavailable (00000000)
f78b7000 f78c4000 DMusic.sys Timestamp: unavailable (00000000)
f4eb3000 f4ec1000 swmidi.sys Timestamp: unavailable (00000000)
bad1a000 bad3d000 aec.sys Timestamp: unavailable (00000000)
eeb64000 eeb66000 splitter.sys Timestamp: unavailable (00000000)
f3a89000 f3a92000 processr.sys Timestamp: unavailable (00000000)
f4dc7000 f4dcc000 Cdaudio.SYS Timestamp: unavailable (00000000)
f5b8d000 f5b90000 Sfloppy.SYS Timestamp: unavailable (00000000)

Would this indicate all these drivers are at fault?

All four of your minidumps are 0xD1 errors which is caused by a device driver attempting to access an IRQL address it has no right toand thus results in crashes.

The driver cited in all four is nvata.sys. This is the Nvidia sata/raid driver and is a known issue. Try updating this driver from your mobo manufacturers website. See if that brings stability.

Those BCC codes and the drivers you listed are Windows OS drivers.