Keyboard error or not presented when boot 1

[greenpee]

Hi,

I have a big problem with my PC XP. A couple days ago, I found my pc frozen constantly or shutdow by itself and sometimes keyboard or mouse did not work. I checked the event viewer and there were not error. One day I truned on the PC and I saw "Keyboard error or not presented" and I heard noise (clicking) while booting. I got a new keyboard and it worked only once and same problem happened there after.

When I do "F1" to continue ignoring the error message, I can get into the OS but mouse doesn't work and keyboard keys only response a couple of time and then dead. Ctrl+Alt+Dlt couldn't work either.

I check both keyboards on different machine. The both keyborads are fine.

Thanks,

 

[BadBigBen]

The clicking could indicate a faulty HD...

Ben

"If it works don't fix it! If it doesn't use a sledgehammer..."

 

[greenpee]

Thanks Ben.

I think the sound was when I had the keyboard plug in. any idea? The sound was sharp. It's not like from HD

 

[BadBigBen]

Well, it could also indicate a faulty mobo, ie. bad capacitors...

open her up and take a look for buldging or even leaking caps (the round tall things on the mobo), they should be flat and slightly indented...


Ben

"If it works don't fix it! If it doesn't use a sledgehammer..."

 

[greenpee]

Thanks Ben. Very helpful.

If this is the case (bad capacitors or other), do I need a new mobo?

 

[KevinADC]

That's pretty much what it means greenpee. While it is possible to repair a MOBO, the cost is low for the average MOBO, so they aren't worth the cost of repair for the most part.

 

[BadBigBen]

KevinADC answered it nicely...

I did a repair once of a mobo with bad caps, it isn't hard but if you aren't up to par with a soldering iron and patience, then I wouldn't bother with it... and just buy a replacement mobo...

do let us know if that is the case with your PC...

Ben

"If it works don't fix it! If it doesn't use a sledgehammer..."

 

[greenpee]

Thanks Ben.

I checked my caps. They are fine to me.

Now, I sometimes can get into OS without Keyboard error when play around with plugging and unplugging mouse. Now It has more problems. Sometimes PC just shutdown itself. Sometime the keyboard wooked fine for mins and frozen. Sometimes mouse frozen and the keyboard. For a couple of times, I can check CPU and Memory usage, even in safe mode, they were very high. I have 512M RAM and the useage was around 420. Also I noticed after I brought up "task manager", PC frozen.

Do you think this is mobo problem?

 

[BadBigBen]

either that or you have been bombed with a VIRUS...

How is the Keyboard acting in the BIOS Setup? is it working at all? does the PC freeze in the BIOS Setup?

what size and how old is your PSU? best you give the whole specs on your PC, this will aide in finding the culprit...

Ben

"If it works don't fix it! If it doesn't use a sledgehammer..."

 

[greenpee]

My keyboard acted fleaky in BIOS setup. The up and down keys did not go the the right place. They were jumping randamly. Keyboard just freeze a couple of times in tons of restarts.

My pc is less than a year old. I put it up myself.

 

[KevinADC]

If you have or can borrow another keyboard to test the computer with do that first. If another keyboard acts the same way then the motherboard is probably going to need to be replaced.

 

[garebo]

First, as suggested, you need to try another keyboard.
If the other keyboard acts the same then check your cmos battery, the round coin battery on your motherboard. Make sure the voltage is 3.3 volts or close to that. A battery tester will do the job. If you need a battery, you can now get them at the $1 store instead of paying $4.95 at walmart or bestbuy!
Also, i would check the motherboard manual on how to reset the bios. Usually it means unhooking all power to mobo, take coin battery out,move jumper closest to the coin battery from pins 1 and 2 to pins 2 and 3 for a few minutes and then reverse all and put battery back in and hook power up. But some mobos are different, like ECS, so check your manual or the mobo website. Mobo is motherboard.

After that, if still no good, i would suspect the power supply. Easiest would be to borrow another one and install it in your pc and see if all is well. The harder way would be to get a digital or analog multimeter and test each voltage line on your power supply. YOu can get a good tutorial on how to do this at techrepublic. Its all pros there so its safe to join to get the tutorial.


Good advice + great people = tek-tips

 

[KevinADC]

mouse not working right, keyboard not working right (even in BIOS screen), sometimes PC shuts down, etc etc, sounds like a mad MOBO really. A dead CMOS battery will not cause those symptoms as far as I know, and many computers will bott even if CMOS is dead (but will have lost the settings). The I/O board/chips are probably bad or there is a small possibility the PS2 or AT (or USB) ports are bad. New MOBO is the ticket here.

 

[garebo]

I agree, but then i have seen a lot of weird stuff over the years, and weird fixes too. So i try and get all possible causes out of the way before i spring for a new mobo! And, it could very well be the power supply causing the problem.



Good advice + great people = tek-tips