motherboard problem, usb and ps2 not working

March 19, 2011 at 07:00:42
Specs: Windows & Ultimate
i got a msi k9agm3 f motherboard, it was workin fine and everything yesterday but today, when I turned it on, it fails to detect any keyboard or mouse, tried everything from reconnecting everything, to loosening the screws, to completly removing the motherboard from the case and assembling it apart and still nothing, it comes on, and on the boot screen it says "PS/2 mouse notdetected", is there anywhere I could get a bios auto repair/installer because I suspect it of being the problem, since it can't recognize the keyboard nor mouse I can't get into the BIOS to actually confirm if that is the problem, would appreciate any help, thx allot.

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#1
March 19, 2011 at 07:24:49
"is there anywhere I could get a bios auto repair/installer because I suspect it of being the problem, ..."

Bioses DO NOT spontaneously get corrupted.

Only malware can corrupt the bios, but if you're using any anti-malware software at all, that's extremely unlikely.
......

MSI mboards are more likely to have this problem ......

Some mboards develop this problem - electrolytic capacitors were installed on them that were not properly made, and they fail eventually - the mboard manufacturer didn't know they were improperly made at the time the mboard was made.

Open up your case and examine the mboard to see if you have bad capacitors, and/or other findable signs of mboard damage .

This was the original bad capacitor problem - has some example pictures.
History of why the exploding capacitors and which mboard makers were affected:
http://members.datafast.net.au/~dft...

What to look for, mboard symptoms, example pictures:
http://www.badcaps.net/pages.php?vid=5
Home page that site
- what the problem is caused by
- he says there are STILL bad capacitors on more recent mboards.
http://www.badcaps.net/

Pictures of blown capacitors, other components, power supplies, fried Athlon cpus, etc.:
http://www.halfdone.com/Personal/Jo...
..........

Both USB ports and PS/2 ports require +5v

Failing power supplies are common.
If your power supply is malfunctioning, it may nor be producing enough of what is supposed to be accurate +5v power.
In that case optical (CD, DVD) drives and floppy drives won't work either

Try connecting another power supply if you can


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#2
March 19, 2011 at 07:33:48
thx for the reply, yes ive checked, all the are not blown, or showing any sign or such thing,I double it's the power supply because I have my cd rom and 2 harddisks working without a problem and tried removing everything except the esentials (harddisks, optical drives, floppy etc..) and still no progress, I have no idea what the problem is...

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#3
March 19, 2011 at 08:57:37
"tried removing everything except the esentials (harddisks, optical drives, floppy etc..)"

Drives are not essential. At this point, all you're trying to do is get the keyboard to work, not boot into Windows or off a disk. Completely dismantling the system was a waste of time, hopefully you put everything back together correctly. Did you try resetting the BIOS?


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#4
March 19, 2011 at 13:16:09
yes i did. and that is what i meant, i removed the harddisks and optical drives to minimize the chance of errors and to see if the power supply unit is where the problem is.

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