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USB disconnecting and reconnecting by itself

Last response: in Motherboards
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Hey guys help me out here,

I am having issues with usb ports, basically they are disconnecting and reconnecting by itself at random times.
Also not always but many times, pc doesn't recognize my keyboard on boot.

BIOS update? or power issue maybe?
I have plenty of power for my computer though hm.

any suggestions would be appreciated thanks!

hi
I have the same problem
my usb keyboard and mouse sometimes disconecting by itself
i dont know what the problem???

My PC:
Athlon II 620
9800GTX+
2x2 GB ram
2 HDD
PSU Acbel 470W (420 W pure)

All right first off:

Does your computer sit on carpet?

Is the area you are using your computer dry/ dusty?

Why i'm asking this is because i've seen static shock kill ALL the USB ports on a computer and a simple - power off - unplug of everything (the wires) leave it for 5 minutes and plug it all back in fixed everything.

Also is there any damage to the USB cables? I've come across USB cables that were slightly damaged giving a connecting/disconnecting problem.
Motherboard Authority

jahn6, are you having this issue with all your USB ports? Both the ones in the back of your case and the front/top/side ones?

An old generic PSU that says 450W could be anything, and can be a problem... however the board would be the first suspect. M2N was a budget line from Asus that ended up in a lot of emachines and cheap HPs as I recall.

You might want to try a BIOS reset.

When you say PS doesn't recognize the KB on boot, do you mean during POST or after the OS starts loading? If it's hanging at post due to no KB, I would strongly suspect the motherboard first, and then perhaps the PSU.
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