diff --git a/board_enable.c b/board_enable.c
index 5c68c66..d09923a 100644
--- a/board_enable.c
+++ b/board_enable.c
@@ -1494,6 +1494,7 @@
  *  - Dell PowerEdge 1850: Intel PPGA604 + E7520 + ICH5R
  *  - ASRock P4i65GV: Intel Socket478 + 865GV + ICH5R
  *  - ASRock 775i65G: Intel LGA 775 + 865G + ICH5
+ *  - MSI MS-6391 (845 Pro4): Intel Socket478 + 845 + ICH2
  */
 static int intel_ich_gpio23_raise(void)
 {
@@ -1963,6 +1964,7 @@
 	{0x1039, 0x7012, 0x1462, 0x0050,  0x1039, 0x6325, 0x1462, 0x0058, NULL,          NULL,         NULL,          "MSI",         "MS-7005 (651M-L)",      0,   OK, board_msi_651ml},
 	{0x10DE, 0x00E0, 0x1462, 0x0250,  0x10DE, 0x00E1, 0x1462, 0x0250, NULL,          NULL,         NULL,          "MSI",         "MS-7025 (K8N Neo2 Platinum)", 0,   OK, nvidia_mcp_gpio0c_raise},
 	{0x8086, 0x2658, 0x1462, 0x7046,  0x1106, 0x3044, 0x1462, 0x046d, NULL,          NULL,         NULL,          "MSI",         "MS-7046",               0,   OK, intel_ich_gpio19_raise},
+	{0x8086, 0x244b, 0x1462, 0x3910,  0x8086, 0x2442, 0x1462, 0x3910, NULL,          NULL,         NULL,          "MSI",         "MS-6391 (845 Pro4)",    0,   OK, intel_ich_gpio23_raise},
 	{0x1106, 0x3149, 0x1462, 0x7061,  0x1106, 0x3227,      0,      0, NULL,          NULL,         NULL,          "MSI",         "MS-7061 (KM4M-V/KM4AM-V)", 0,   OK, w836xx_memw_enable_2e},
 	{0x10DE, 0x005E, 0x1462, 0x7135,  0x10DE, 0x0050, 0x1462, 0x7135, NULL,          "msi",        "k8n-neo3",    "MSI",         "MS-7135 (K8N Neo3)",    0,   OK, w83627thf_gpio44_raise_4e},
 	{0x10DE, 0x0270, 0x1462, 0x7207,  0x10DE, 0x0264, 0x1462, 0x7207, NULL,          NULL,         NULL,          "MSI",         "MS-7207 (K8NGM2-L)",    0,   NT, nvidia_mcp_gpio2_raise},
diff --git a/print.c b/print.c
index 78e298d..ae2bd39 100644
--- a/print.c
+++ b/print.c
@@ -506,6 +506,7 @@
 	B("MSI",	"MS-6163 (MS-6163 Pro)",1, "http://www.msi.com/index.php?func=proddesc&prod_no=340", NULL),
 	B("MSI",	"MS-6178",		0, "http://www.msi.com/index.php?func=proddesc&maincat_no=1&prod_no=343", "Immediately powers off if you try to hot-plug the chip. However, this does '''not''' happen if you use coreboot. Owned by Uwe Hermann <uwe@hermann-uwe.de>."),
 	B("MSI",	"MS-6330 (K7T Turbo)",	1, "http://www.msi.com/index.php?func=proddesc&maincat_no=1&prod_no=327", NULL),
+	B("MSI",	"MS-6391 (845 Pro4)",	1, "http://www.msi.com/index.php?func=proddesc&maincat_no=1&prod_no=293", NULL),
 	B("MSI",	"MS-6561 (745 Ultra)",	1, "http://www.msi.com/index.php?func=proddesc&maincat_no=1&prod_no=274", NULL),
 	B("MSI",	"MS-6570 (K7N2)",	1, "http://www.msi.com/index.php?func=proddesc&maincat_no=1&prod_no=519", NULL),
 	B("MSI",	"MS-6577 (Xenon)",	1, "http://h10025.www1.hp.com/ewfrf/wc/document?product=90390&lc=en&cc=us&dlc=en&docname=bph07843", "This is an OEM board from HP, the HP name is Xenon."),