diff --git a/src/add-ons/kernel/bus_managers/usb/BusManager.cpp b/src/add-ons/kernel/bus_managers/usb/BusManager.cpp
index 4c85750873..dbfc2f1643 100644
--- a/src/add-ons/kernel/bus_managers/usb/BusManager.cpp
+++ b/src/add-ons/kernel/bus_managers/usb/BusManager.cpp
@@ -204,7 +204,7 @@ BusManager::AllocateDevice(Hub *parent, uint8 port, usb_speed speed)
 	if (deviceDescriptor.device_class == 0x09) {
 		TRACE(("USB BusManager: creating new hub\n"));
 		Hub *hub = new(std::nothrow) Hub(parent, port, deviceDescriptor,
-			deviceAddress, speed);
+			deviceAddress, speed, false);
 		if (!hub) {
 			TRACE_ERROR(("USB BusManager: no memory to allocate hub\n"));
 			FreeAddress(deviceAddress);
diff --git a/src/add-ons/kernel/bus_managers/usb/Hub.cpp b/src/add-ons/kernel/bus_managers/usb/Hub.cpp
index bb74a15eab..caa62cb56a 100644
--- a/src/add-ons/kernel/bus_managers/usb/Hub.cpp
+++ b/src/add-ons/kernel/bus_managers/usb/Hub.cpp
@@ -12,7 +12,7 @@
 
 
 Hub::Hub(Object *parent, int8 hubPort, usb_device_descriptor &desc,
-	int8 deviceAddress, usb_speed speed)
+	int8 deviceAddress, usb_speed speed, bool isRootHub)
 	:	Device(parent, hubPort, desc, deviceAddress, speed),
 		fInterruptPipe(NULL)
 {
@@ -71,7 +71,8 @@ Hub::Hub(Object *parent, int8 hubPort, usb_device_descriptor &desc,
 		InterruptCallback, this);
 
 	// Wait some time before powering up the ports
-	snooze(USB_DELAY_HUB_POWER_UP);
+	if (!isRootHub)
+		snooze(USB_DELAY_HUB_POWER_UP);
 
 	// Enable port power on all ports
 	for (int32 i = 0; i < fHubDescriptor.num_ports; i++) {
diff --git a/src/add-ons/kernel/bus_managers/usb/usb_p.h b/src/add-ons/kernel/bus_managers/usb/usb_p.h
index ad0f965abd..4c37648634 100644
--- a/src/add-ons/kernel/bus_managers/usb/usb_p.h
+++ b/src/add-ons/kernel/bus_managers/usb/usb_p.h
@@ -483,7 +483,7 @@ public:
 										Hub(Object *parent, int8 hubPort,
 											usb_device_descriptor &desc,
 											int8 deviceAddress,
-											usb_speed speed);
+											usb_speed speed, bool isRootHub);
 virtual									~Hub();
 
 virtual	status_t						Changed(change_item **changeList,
diff --git a/src/add-ons/kernel/bus_managers/usb/usbspec_p.h b/src/add-ons/kernel/bus_managers/usb/usbspec_p.h
index 04e42610e8..11cd58c132 100644
--- a/src/add-ons/kernel/bus_managers/usb/usbspec_p.h
+++ b/src/add-ons/kernel/bus_managers/usb/usbspec_p.h
@@ -26,7 +26,6 @@
 #define USB_DELAY_SET_ADDRESS_RETRY		200000
 #define USB_DELAY_SET_ADDRESS			10000
 #define USB_DELAY_SET_CONFIGURATION		50000
-#define USB_DELAY_FIRST_EXPLORE			5000000
 #define USB_DELAY_HUB_EXPLORE			1000000
 
 // For bandwidth calculation
diff --git a/src/add-ons/kernel/busses/usb/ehci_rh.cpp b/src/add-ons/kernel/busses/usb/ehci_rh.cpp
index 2d5f3480a1..3c47adb6c8 100644
--- a/src/add-ons/kernel/busses/usb/ehci_rh.cpp
+++ b/src/add-ons/kernel/busses/usb/ehci_rh.cpp
@@ -76,7 +76,7 @@ static ehci_root_hub_configuration_s sEHCIRootHubConfig =
 		USB_DESCRIPTOR_HUB,				// Descriptor type
 		0x0f,							// Number of ports
 		0x0000,							// Hub characteristics
-		50,								// Power on to power good (in 2ms units)
+		0,								// Power on to power good (in 2ms units)
 		0,								// Maximum current (in mA)
 		0x00,							// All ports are removable
 		0xff							// Depricated power control mask
@@ -123,7 +123,7 @@ static ehci_root_hub_string_s sEHCIRootHubStrings[3] = {
 
 EHCIRootHub::EHCIRootHub(Object *rootObject, int8 deviceAddress)
 	:	Hub(rootObject, rootObject->GetStack()->IndexOfBusManager(rootObject->GetBusManager()),
-			sEHCIRootHubDevice, deviceAddress, USB_SPEED_HIGHSPEED)
+			sEHCIRootHubDevice, deviceAddress, USB_SPEED_HIGHSPEED, true)
 {
 }
 
diff --git a/src/add-ons/kernel/busses/usb/ohci_rh.cpp b/src/add-ons/kernel/busses/usb/ohci_rh.cpp
index 117c11601a..c6561df620 100644
--- a/src/add-ons/kernel/busses/usb/ohci_rh.cpp
+++ b/src/add-ons/kernel/busses/usb/ohci_rh.cpp
@@ -76,7 +76,7 @@ static ohci_root_hub_configuration_s sOHCIRootHubConfig =
 		USB_DESCRIPTOR_HUB,		// Type
 		0,						// Number of ports
 		0x0000,					// Hub characteristics
-		50,						// Power on to power good
+		0,						// Power on to power good
 		0,						// Current
 		0x00,					// Both ports are removable
 		0xff					// Depricated power control mask
@@ -122,7 +122,7 @@ static ohci_root_hub_string_s sOHCIRootHubStrings[3] = {
 
 OHCIRootHub::OHCIRootHub(Object *rootObject, int8 deviceAddress)
    :	Hub(rootObject, rootObject->GetStack()->IndexOfBusManager(rootObject->GetBusManager()),
-   			sOHCIRootHubDevice, deviceAddress, USB_SPEED_FULLSPEED)
+   			sOHCIRootHubDevice, deviceAddress, USB_SPEED_FULLSPEED, true)
 {
 }
 
diff --git a/src/add-ons/kernel/busses/usb/uhci_rh.cpp b/src/add-ons/kernel/busses/usb/uhci_rh.cpp
index e6c4cff1e6..a27df8daaa 100644
--- a/src/add-ons/kernel/busses/usb/uhci_rh.cpp
+++ b/src/add-ons/kernel/busses/usb/uhci_rh.cpp
@@ -79,7 +79,7 @@ static uhci_root_hub_configuration_s sUHCIRootHubConfig =
 		USB_DESCRIPTOR_HUB,				// Descriptor type
 		2,								// Number of ports
 		0x0000,							// Hub characteristics
-		50,								// Power on to power good (in 2ms units)
+		0,								// Power on to power good (in 2ms units)
 		0,								// Maximum current (in mA)
 		0x00,							// Both ports are removable
 		0xff							// Depricated power control mask
@@ -127,7 +127,7 @@ static uhci_root_hub_string_s sUHCIRootHubStrings[3] = {
 
 UHCIRootHub::UHCIRootHub(Object *rootObject, int8 deviceAddress)
 	:	Hub(rootObject, rootObject->GetStack()->IndexOfBusManager(rootObject->GetBusManager()),
-			sUHCIRootHubDevice, deviceAddress, USB_SPEED_FULLSPEED)
+			sUHCIRootHubDevice, deviceAddress, USB_SPEED_FULLSPEED, true)
 {
 }