diff --git a/COMPATIBILITY b/COMPATIBILITY
index cc20f34..e849b82 100644
--- a/COMPATIBILITY
+++ b/COMPATIBILITY
@@ -43,6 +43,7 @@ COMPAQ Presario 1723EA
 COMPAQ Presario 1800
 COMPAQ Presario 1800XL584
 COMPAQ Presario 18XL580
+COMPAQ Presario 2100Z
 COMPAQ Presario 2825EA
 COMPAQ Presario 700US
 COMPAQ Presario 711EA