diff --git a/doc/7-systems/ay8910.md b/doc/7-systems/ay8910.md
index 11fa31b32..64e814825 100644
--- a/doc/7-systems/ay8910.md
+++ b/doc/7-systems/ay8910.md
@@ -6,6 +6,8 @@ it is a 3-channel square/noise/envelope sound generator. the chip's powerful sou
 
 the AY-3-8914 variant was used in Intellivision, which is pretty much an AY with 4 level envelope volume per channel and different register format.
 
+as of Furnace 0.6pre7, AY-3-8910 supports software PCM, where all 3 channels can play 4-bit PCM samples (at the cost of a very high CPU usage)
+
 # effects
 
 - `20xx`: **set channel mode.**