diff --git a/hw/isa/vt82c686.c b/hw/isa/vt82c686.c
index f0fb309f12..98325bb32b 100644
--- a/hw/isa/vt82c686.c
+++ b/hw/isa/vt82c686.c
@@ -178,6 +178,11 @@ static void via_pm_reset(DeviceState *d)
     /* SMBus IO base */
     pci_set_long(s->dev.config + 0x90, 1);
 
+    acpi_pm1_evt_reset(&s->ar);
+    acpi_pm1_cnt_reset(&s->ar);
+    acpi_pm_tmr_reset(&s->ar);
+    pm_update_sci(s);
+
     pm_io_space_update(s);
     smb_io_space_update(s);
 }