diff --git a/flash.h b/flash.h
index 6ec8e31..9375e57 100644
--- a/flash.h
+++ b/flash.h
@@ -38,11 +38,13 @@
 #define SHARP_ID            0xB0
 #define SHARP_LHF00L04      0xCF
 
-#define SST_ID            0xBF	/* SST Manufacturer ID code   */
-#define SST_29EE020A      0x10	/* SST 29EE020 device code      */
-#define SST_28SF040       0x04	/* SST 29EE040 device code    */
-#define SST_39SF020       0xB6	/* SST 39SF020  device        */
-#define SST_39VF020       0xD6	/* SST 39VF020  device        */
+#define SST_ID            0xBF	/* SST Manufacturer ID code */
+#define SST_29EE020A      0x10	/* SST 29EE020 device */
+#define SST_28SF040       0x04	/* SST 29EE040 device */
+#define SST_39SF010       0xB5	/* SST 39SF010A device */
+#define SST_39SF020       0xB6	/* SST 39SF020A device */
+#define SST_39SF040       0xB7	/* SST 39SF040 device */
+#define SST_39VF020       0xD6	/* SST 39VF020 device */
 #define SST_49LF040B	  0x50	/* SST 49LF040B device */
 #define SST_49LF040	  0x51	/* SST 49LF040 device */
 #define SST_49LF080A	  0x5B	/* SST 48LF080A device */
@@ -51,7 +53,7 @@
 #define SST_49LF004A	  0x60	/* SST 49LF004A device */
 #define SST_49LF008A	  0x5A	/* SST 49LF008A device */
 
-#define PMC_ID            0x9D	/* PMC Manufacturer ID[B code   */
+#define PMC_ID            0x9D	/* PMC Manufacturer ID code   */
 #define PMC_49FL002       0x6D	/* PMC 49FL002 device code      */
 #define PMC_49FL004       0x6E	/* PMC 49FL004 device code      */
 
@@ -59,6 +61,7 @@
 #define W_29C011          0xC1	/* Winbond w29c011 device code */
 #define W_29C020C         0x45	/* Winbond w29c020c device code */
 #define W_39V040A         0x3D	/* Winbond w39v040a device code */
+#define W_39V040B         0x54	/* Winbond w39v040b device code */
 #define W_49F002U         0x0B	/* Winbond w49F002u device code */
 #define W_49V002A         0xB0  /* Winbond W49V002A device code */
 #define W_49V002FA        0x32  /* Winbond W49V002FA device code */
diff --git a/flash_enable.c b/flash_enable.c
index d03a36b..ccd670a 100644
--- a/flash_enable.c
+++ b/flash_enable.c
@@ -398,6 +398,7 @@
         {0x10de, 0x0050, "NVIDIA CK804", enable_flash_ck804}, // LPC
         {0x10de, 0x0051, "NVIDIA CK804", enable_flash_ck804}, // Pro
         {0x10de, 0x00d3, "NVIDIA CK804", enable_flash_ck804}, // Slave, should not be here, to fix known bug for A01.
+	{0x10de, 0x0261, "NVIDIA C51",   enable_flash_ck804},
 	{0x1002, 0x4377, "ATI SB400", enable_flash_sb400}, // ATI Technologies Inc IXP SB400 PCI-ISA Bridge (rev 80)
 };
 
diff --git a/flashchips.c b/flashchips.c
index c5e3d9e..dd937a7 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -52,8 +52,12 @@
 	 probe_jedec,	erase_chip_jedec, write_jedec,	NULL},
 	{"SST28SF040A", SST_ID,		SST_28SF040,	NULL, 512, 256,
 	 probe_28sf040, erase_28sf040, write_28sf040,	NULL},
+	{"SST39SF010A", SST_ID,		SST_39SF010,	NULL, 128, 4096,
+	 probe_jedec,	erase_chip_jedec, write_39sf020,NULL},
 	{"SST39SF020A", SST_ID,		SST_39SF020,	NULL, 256, 4096,
 	 probe_jedec,	erase_chip_jedec, write_39sf020,NULL},
+	{"SST39SF040",  SST_ID,		SST_39SF040,	NULL, 512, 4096,
+	 probe_jedec,	erase_chip_jedec, write_39sf020,NULL},
 	{"SST39VF020",	SST_ID,		SST_39VF020,	NULL, 256, 4096,
 	 probe_jedec,	erase_chip_jedec, write_39sf020,NULL},
 // assume similar to 004B, ignoring data sheet
@@ -88,6 +92,8 @@
 	 probe_jedec,	erase_chip_jedec, write_49f002, NULL},
 	{"W39V040A", 	WINBOND_ID, 	W_39V040A,	NULL, 512, 64*1024,
 	 probe_jedec,	erase_chip_jedec, write_39sf020, NULL},
+	{"W39V040B",    WINBOND_ID,     W_39V040B,      NULL, 512, 64*1024,
+	 probe_jedec,   erase_chip_jedec, write_39sf020, NULL},
 	{"M29F040B",	ST_ID, 		ST_M29F040B,	NULL, 512, 64 * 1024,
 	 probe_29f040b, erase_29f040b,	write_29f040b,	NULL},
 	{"M29F400BT",	ST_ID,		ST_M29F400BT,	NULL, 512, 64 * 1024,