Inadvertantly plugged keyboard into mouse port

[randr]

Doing maintenance I fucked up and my keyboard no longer worked. Is this fixable? What broke, the keyboard or the port?
Fortunately I had a wireless keyboard on hand that I installed else I would not be writing this question.

[PoliticAverse]

1. Have you powered down the computer and restarted it with things plugged in properly ? n/t

[randr]

4. HP Pavillion has color coded ports for mouse and keyboard

next to one another. I have mouse on alternate USB port. I tried restarting several times. Could not get the keyboard to turn on. I have not tried to start with previous version or a reset of defaults. Unplugging and plugging back in the keyboard causes a temporary flicker of lights on keyboard.

[PoliticAverse]

5. If they are both USB (mouse and keyboard) you should be able to plug them into any USB port.

What OS are you running ?

[MannyGoldstein]

2. Rectangular usb port or round port? nt

[steve2470]

3. might want to reboot, go into the BIOS and reset it to defaults ?

just an idea. Good luck.

[Mnpaul]

6. Go into device manager

Right click on the computer name at the top of the list and select "detect hardware changes"

[RC]

7. It they are round ports and the computer was on, you more than likely zorched the port.

The keyboard should be OK. But the best bet is a USB keyboard, as the proper USB adapters are getting hard to find.

[randr]

8. This is what I suspect

Port connections are round color coded. Fortunately mouse and new keyboard are wireless and connect thru USB slots.
Is there a diagnosis I can run on the computer to tell me the condition of the port?

[RC]

9. Another known good keyboard, with the same type connecter, is the best bet.

There are diagnosis for that, but I can't tell you what/where off the top of my head. Depends on the make/model of the computer, what would work. Been retired too long and the edge is getting rusty.

If the computer is that old, that it still has the round keyboard and mouse ports, there is nothing wrong with using the USB ports to get it working again, such as your wireless keyboard. The problem with that, is the older, old computers have a BIOS that will not recognize the USB ports. That can be a pain. USB is part of Windows, however.
Save the old keyboards and LED mice, unless they are known bad. You or a friend might have need someday.
I'm using an old IBM keyboard from a old 386 computer. Its built like a tank and almost as heavy. I like the feel of the keys. Nothing mushy about it.

[hobbit709]

11. Probably so. PS/2 ports were not designed for hot plugging.

In my experience if you hot plug one there's about a 99+% of failure of the port.

[ChromeFoundry]

10. there is usually a pico-fuse on motherboard

that usually blows, if it is older than about 10 years. This is a $0.50 part but requires the use of a soldering iron to repair.
Go USB/USB-Wireless/Bluetooth and avoid the aggravation.

[hobbit709]

12. and you have to know where it is.

component identification on most motherboards is pretty much nonexistent. And there are several picofuses on the board. The one behind the connector is not necessarily the one you need to replace.

[ChromeFoundry]

14. And if it is a surface mount component...

probably not going to be able to replace that without a lot of experience.

[randr]

13. Narrowed it down to keyboard

Since the problem was caused by the keyboard being plugged into the port dedicated to the mouse and then would not work when plugged into the appropriate port. Computer diagnostics show all ports operational.
It was a larger ergonomic model but I am getting use to the smaller yet wireless keyboard I just happened to have on hand.
Thanks for all the help.