USB ports not working

Asus / P5k se
August 6, 2016 at 20:51:27
Specs: Windows 7, Core 2 Duo/6gb DDR2
I have the Asus P5K SE, had to replace a burnt out power supply, installed a Thermaltake 430, everything works as normal except for all the USB ports. I cleared the CMOS, replaced the battery, reseated the vid card & the ram and still nothing. There also doesn't seem to have any popped capacitors.

I had no issues prior to replacing the PSU. Both BIOS & Device Manager detects the USB ports, when connected to a mouse the LED light turns on but the pointer doesn't move.

Does anybody have a suggestion as to what I should inspect next?

Thx in advance...

message edited by HAL2000


See More: USB ports not working

Report •

#1
August 7, 2016 at 01:52:58
http://www.tomshardware.co.uk/forum...

Also this from the "ifixit" website:

"Mouse is on, but cursor is not moving

You’ve verified that the mouse is on (for optical mice, there is a light on the bottom), but moving your physical mouse doesn’t move the cursor on your screen.
Using wrong surface (mouse pad)

The mouse might be unresponsive because you have it on a clear or shiny surface. The mouse needs a surface that is able to reflect the outgoing beam from the LED back up to the sensor in the mouse. Textured surfaces are better, because they allow the mouse to recognize movement easier. Choose a mouse pad that is not shiny or transparent. You can temporarily use paper or a folder of some type to place underneath the mouse.
Mouse is dirty

If the bottom of the mouse is unclean, dirt can interfere with the sensor. Use a moist towel or wipe to clean off the bottom, so the light has a clear path back to the sensor.
Computer settings are wrong

Your mouse settings may be disarranged in some way. To fix this, go to your control panel (Start Menu or Windows Key -> Control Panel). Next, go to “Hardware and Sound” and look under “Devices and Printers” (note that “Devices and Printers” may be directly accessible from the computer’s Start Menu). Select the “Mouse” option. The settings will then pop up on your screen. Select “Default” and then exit out. This resets your mouse settings to the normal settings. If this does not work, then try restarting your computer. Unplug, then replug your mouse back into your computer after the restart process has finished"

message edited by phil22


Report •

#2
August 7, 2016 at 07:06:37
Purely a guess on my part - as not had the situation you describe (fortunately for me at least)...

Might you perhaps re-install chipset drivers?

Meanwhile... can you test ports with other usb devices to verify if the problem persists for those as well? I'm thinking flash/memory sticks; usb CD/DVD - even another rodent (mouse) known to be good?


Report •

#3
August 7, 2016 at 08:35:22
It's not just the mouse that's inoperable, anything I plug into the USB port is not detected.

Report •

Related Solutions

#4
August 7, 2016 at 08:40:12
Yes I figured a whole mobo driver update is in order but everything worked before the PSU replacement so I really didn't think that was the issue. And yes I did try plugging in a different mouse, a flash drive and a sd card reader in every port but still no detection. I'm just hoping the mobo isn't pooched after the old PSU burnt out.

Report •

#5
August 7, 2016 at 08:56:53
The link below is from the Asus site. The specs indicate there are 12 USB ports available. 6 on the board in the back and 6 on headers. This would indicate to me that there are 2 USB controllers available. IF the board is damaged it may only be one of the controllers. So try both types.

Also, did you check to verify USB is enabled in the BIOS screens, if there is an option?

https://www.asus.com/Motherboards/P...

message edited by OtheHill


Report •

#6
August 7, 2016 at 09:20:39
Depending on why the psu died may determine why the usb ports aren't working. It maybe there was a voltage surge which took out part(s) of the Mobo - and the usb controller(s) being possibles?

Do you know what caused the psu to fry/burn out?


Report •

#7
August 7, 2016 at 09:34:12
"I cleared the CMOS, replaced the battery, reseated the vid card & the ram and still nothing"

I don't know why you would have done any of those things, but as per OtheHill' s response #5, make sure to check (& correct) your BIOS settings. A reset is just that, it resets everything to defaults; defaults are rarely 100% optimal, they are only a starting point.


Report •

#8
August 7, 2016 at 10:51:02
Yes it is enabled in the BIOS, I don't think there would be power if it were disabled.

Report •

#9
August 7, 2016 at 10:54:15
I reseated everything just to make sure nothing was jarred loose when I replaced the PSU and yes it is enabled in the BIOS.

Report •

#10
August 7, 2016 at 12:14:11
Are there any errors showing in Device Manager under Universal Serial Bus controllers?

Always pop back and let us know the outcome - thanks


Report •

#11
August 7, 2016 at 14:49:21
Did you try both controllers? The ports attached to the MBoard are one controller. The front and any rear on brackets will be the second controller.

Report •

#12
August 7, 2016 at 15:51:17
You might try checking the port voltage. There's a lot of cheap testers:

http://www.gearbest.com/home-gadget...

Of course the problem may be more than its voltage output but if it's hardware related that would be a place to start.

message edited by DAVEINCAPS


Report •

#13
August 7, 2016 at 16:22:02
No errors showing in Device Manager under the USB controllers

Report •

#14
August 7, 2016 at 16:48:45
have you tried to DISABLE the "USB EHCI Hand-off" in BIOS?
If you see some yellow tags in System Devices, uninstall the drivers and let it redetect.

Report •

#15
August 13, 2016 at 13:24:40
Sir/Lady

USB controller of mobo is damaged (Usually USB Controller integrated with other system chips, Like the On-Board Serial/Parallel/IDE/Etc Controllers).
Detection and/or Power-Line Voltage level are not enough.
At First, Use Guarantee of System/Mobo.
IF Guarantee/Warranty Expired, Obtain New USB Add-on Card (PCI or PCIe with 2/4/... Ports), Install it and its Driver.

Good luck.

message edited by TechDOS


Report •

#16
August 13, 2016 at 16:11:19
Yes, it is very possible that if the power supply burned out in a bad way there may have been a power surge or voltage spike and this may have damaged some components in the system and even on the motherboard. Since the USB runs off the 5Volt rail it is logical that items like the CPU and video which run on the 12Volt rail may be undamaged while the USB ports or controller is damaged. As mentioned in #15 above, you can purchase an add on card for USB. I see that your MB accepts PCIe 1x cards so that would be your best option.
https://www.asus.com/Motherboards/P...
Understand that your system is quite old at this point so avoid spending too much on it and only if you really need to keep it going for a while still. Otherwise you would be spending your money better by buying or building something new.
Understand also that the USB expansion card will not be available during boot up so you will need to use a PS2 keyboard to enter BIOS or even passwords. Once the drivers are loaded then it will be fully available for everything else.

You have to be a little bit crazy to keep you from going insane.


Report •

#17
August 14, 2016 at 12:06:50
Yes

But, If The Controller and Bus of USB Card (New Expansion Card) are the same as Damaged "On-Board USB Controller" and its Bus, BIOS and OS will Do enumeration process without problem.
In This Case, and after Turning-ON the System, USB devices will work properly.
"DISABLE" The On-Board "USB Controller" In "BIOS Setup" For Prevention of Conflicts.

Good Luck

message edited by TechDOS


Report •

#18
August 14, 2016 at 13:08:50
IF the USB controller works unless you have Enable Legacy support in the BIOS then there MAY be an issue with one or more of your devices, such as printers, keyboard, mouse, etc.

I don't believe you made the problem clear before.


Report •

#19
August 15, 2016 at 03:23:39
- ALWAYS turn off the system before hardware installation/uninstallation.
- ALWAYS unplug the power cord from the wall outlet/socket before hardware installation/uninstallation.
- ALWAYS touch a safely grounded object or metal object before touching the device.
- DO NOT touch any devices before the system is fully off.
- DO NOT touch any electrical and semiconductor components on the device, especially ICs on board.

Good Luck

message edited by TechDOS


Report •

Ask Question