diff --git a/src/device/isamem.c b/src/device/isamem.c
index 83e938abd..f63a5a5a1 100644
--- a/src/device/isamem.c
+++ b/src/device/isamem.c
@@ -1310,7 +1310,7 @@ static const device_config_t a6pak_config[] = {
         .file_filter = "",
         .spinner = {
             .min = 0,
-            .max = 576,
+            .max = 384,
             .step = 64
         },
         .selection = { { 0 } }
diff --git a/src/device/isartc.c b/src/device/isartc.c
index 7721d9885..b56718400 100644
--- a/src/device/isartc.c
+++ b/src/device/isartc.c
@@ -714,8 +714,9 @@ static const device_config_t a6pak_config[] = {
         {
             { "Disabled", -1 },
             { "IRQ2",      2 },
-            { "IRQ3",      3 },
+            { "IRQ4",      4 },
             { "IRQ5",      5 },
+            { "IRQ7",      7 },
             { ""             }
         },
     },