Question about MSI PM8M-V Motherboard

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Mouse & keyboard not working

Suddenly My main-board not detected both mouse and keyboard. I remove CMOS battery but still has the problem. It can access in windows but mouse,keyboard not work. I cant access bios for this. USB keyboard also not work now. This is MSI PM8M-V motherboard.

How can I fix this problem. Please help.

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  • 10,406 Answers

You're "stuck" -- if the circuitry for the PS/2 keyboard and mouse is not working, and if it does not recognize a USB keyboard, the motherboard must be replaced (by an identical moetherboard, if you can find one, or a "newer/better" motherboard that takes the same CPU and RAM as your current motherboard).

Posted on Jul 30, 2010

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My computer won't start up and my mouse and keyboard are not working. Do I need to replace my CMOS Battery?


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Motherboard


I would start by process of elimination.
  1. Disconnect power cord
  2. open case
  3. remove button cell battery from motherboard
  4. press power on button to dissipate any stray voltage.
  5. re-install button cell battery.
  6. re-connect power cord
  7. power up pc.
If everything powers up ok and you get a CMOS checksum error, then enter bios set date,time etc. and go.

if the power on self test comes on and still no keyboard,mouse,video etc and no beeps. It may be your board or the processor.

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I bought the same combo from a parts house. The guy told me the mouse didn't work but didn't know why. I had the same problem. When I inspected the mouse closely, I found that the connect button on the bottom of the mouse had stuck underneath the housing...basically in the "connect position". When I freed it, the mouse worked and still works just fine. Hope this helps

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