diff --git a/src/mainboard/hp/compaq_elite_8300_usdt/devicetree.cb b/src/mainboard/hp/compaq_elite_8300_usdt/devicetree.cb
index ba4ac6d..f7f321f 100644
--- a/src/mainboard/hp/compaq_elite_8300_usdt/devicetree.cb
+++ b/src/mainboard/hp/compaq_elite_8300_usdt/devicetree.cb
@@ -9,9 +9,9 @@
 			register "pcie_hotplug_map" = "{ 0, 0, 0, 0, 0, 0, 0, 0 }"
 			register "pcie_port_coalesce" = "1"
 			register "sata_interface_speed_support" = "0x3"
-			register "sata_port_map" = "0x3"  # 0x1: 2.5" slot
+			register "sata_port_map" = "0x7"  # 0x1: 2.5" slot
 			                                  # 0x2: DVD
-			                                  # 0x?: mSATA
+			                                  # 0x4: mSATA
 			register "spi_lvscc" = "0x2005"
 			register "spi_uvscc" = "0x2005"
 			register "superspeed_capable_ports" = "0x0000000f"