diff -Naur --no-dereference a/hw/nvram/fw_cfg.c b/hw/nvram/fw_cfg.c
--- a/hw/nvram/fw_cfg.c	2023-07-04 11:03:21.615219292 +0000
+++ b/hw/nvram/fw_cfg.c	2023-07-04 11:39:20.301679934 +0000
@@ -57,7 +57,7 @@
 #define FW_CFG_DMA_CTL_SELECT  0x08
 #define FW_CFG_DMA_CTL_WRITE   0x10
 
-#define FW_CFG_DMA_SIGNATURE 0x51454d5520434647ULL /* "QEMU CFG" */
+#define FW_CFG_DMA_SIGNATURE 0x4155535520434647ULL /* "ASUS CFG" */
 
 struct FWCfgEntry {
     uint32_t len;