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SpywareHammer General Computer Forums => Hardware => Monitors, Keyboards and Mice => Topic started by: marms10 on September 09, 2010, 01:17:49 PM

Title: keyboard has no power recognized on start up....
Post by: marms10 on September 09, 2010, 01:17:49 PM
I am looking for Hoov.....he helped me about a month ago.....probably the same problem again....when computer starts up the keyboard is not coming on so I cannot get into windows in any way....please help....I have tried taking the computer battery out for a few minutes, I also moved the CMOS pins from the original pin to the other one for a few seconds....now the computer screen asks me to either hit F1 or F2 to enter the setup screen which I cannot do because no keyboard recognized...I have tried my other keyboard as well....same thing happens....setup disc will not work either.....aauuuuhahhahahahahah....since the last problem with the USB ports I have been getting intermittent messages that windows did not recognize the device but it never told me which one it was or where it was located.....now a big problem again
Title: Re: keyboard has no power recognized on start up....
Post by: marms10 on September 12, 2010, 08:02:14 AM
I would appreciate ANYONE who can comment or has ideas on this problem.....I only mentioned Hoov because he helped me with this before....and I did get the keyboard back again...but this time it does not seem to have worked and the keyboard is not getting any power....it looks like the mouse has power but it is the keyboard which is required to enter either BIOS or windows!....don't know if this matters or not either....due to no access with keyboard...to shut the computer off I have to keep holding in the power button until the computer shuts off....(just a note)
Title: Re: keyboard has no power recognized on start up....
Post by: Hoov on September 15, 2010, 07:39:09 PM
Sorry I was not able to help you right away, I was without internet connection for almost three weeks. Are you using the USB ports on the expansion card that you installed? Or are you using the original USB ports?

Title: Re: keyboard has no power recognized on start up....
Post by: marms10 on September 16, 2010, 07:33:33 AM
thanks for getting back to me....I have tried starting the computer in every port that is now on my computer....the mouse is getting power from every port but not the keyboard....I have also tried my other keyboard as well and it is not seen either but both work fine on this computer that I am using now?...weird
Title: Re: keyboard has no power recognized on start up....
Post by: Hoov on September 16, 2010, 09:10:29 AM
What mouse / keyboard combination are you using?
Title: Re: keyboard has no power recognized on start up....
Post by: Hoov on September 16, 2010, 09:28:06 AM
Also, just to make sure, are these wired or are they bluetooth devices?
Title: Re: keyboard has no power recognized on start up....
Post by: marms10 on September 16, 2010, 11:48:44 AM
they are both wired usb Dell units that came with my computer
Title: Re: keyboard has no power recognized on start up....
Post by: Hoov on September 16, 2010, 12:05:59 PM
OK, there is one thing I would like you to try. Unplug the mouse and all other external devices, including any USB devices. Leave only the keyboard connected, and see if it will work that way. The only thing that should be connected to the computer other than the keyboard is the monitor.

Let me know if that works.
Title: Re: keyboard has no power recognized on start up....
Post by: marms10 on September 16, 2010, 02:23:18 PM
unfortunately that did nothing....here's a questiion....what if I took the new usb card out and tried that way.....maybe it is screwing things up?....yes/no....your ideas on that?
Title: Re: keyboard has no power recognized on start up....
Post by: Hoov on September 18, 2010, 11:24:03 AM
You can try it, but I am starting to think you have a power supply problem.  Give it a shot, and we can test the other thing out later.
Title: Re: keyboard has no power recognized on start up....
Post by: marms10 on September 18, 2010, 01:23:58 PM
I will try that out but how can it be a power supply problem when the mouse gets power from every port I have - even the new ones?....just curious
Title: Re: keyboard has no power recognized on start up....
Post by: Hoov on September 18, 2010, 02:18:55 PM
First, I am reaching with this one, so nothing is for certain.

USB ports have one line that is a 5 VDC signal. This is what powers the devices connected to it. A mouse has a lot less current draw than does a keyboard. That was why I wanted you to unhook everything from the USB ports and try just the keyboard. Less load on the 5 VDC part of the power supply.

While you are in the computer removing the card, try unhooking the power connections to all of the other devices except for the harddrive, and any power lead that goes to the motherboard.

Then try starting the computer up again.

Let me know how it goes.
Title: Re: keyboard has no power recognized on start up....
Post by: marms10 on September 18, 2010, 08:31:47 PM
I am really nervous about what you have asked me to do with power connections....I don't know my way around the inside of a computer at all with the exception of what you asked me to do before with the CMOS and putting in the new card....I also know how to replace the battery....I would not know what is power and even what the power would be connected to....I have not been able to test the removal of the usb card that I put in yet....been a very busy day and we have had quite a bit to drink today....BAD COMBINATION for working on a computer....I will see about the usb removal test first....I will have to study my pdf of my computer before I start unplugging anything inside....
Title: Re: keyboard has no power recognized on start up....
Post by: Hoov on September 18, 2010, 08:36:53 PM
Definitely wait until tomorrow.
Title: Re: keyboard has no power recognized on start up....
Post by: marms10 on September 19, 2010, 08:56:09 AM
okay...I've tried removing the new usb card and re-started the computer.....nothing changed....I have been looking at the user manual and I am very sure that I don't know what power connections you are talking about....there is only one device that I know of that is the cd/dvd drive but I am not sure what cable is the power and don't want to screw with things I am not sure about....
Title: Re: keyboard has no power recognized on start up....
Post by: marms10 on September 19, 2010, 08:58:39 AM
it's too bad that I cannot send you a picture of the inside of my computer....that may help....I do have them
Title: Re: keyboard has no power recognized on start up....
Post by: marms10 on September 19, 2010, 09:15:34 AM
here's something for you to think about....what if I got a ps2 to usb adaptor and tried that....I do have an old keyboard that is ps2 but my computer has no such connection...maybe this would work?
Title: Re: keyboard has no power recognized on start up....
Post by: marms10 on September 19, 2010, 09:21:09 AM
or is there a way to hook up my good computer to the other one and link them together to solve the problem with the one that won't let me in that way?
Title: Re: keyboard has no power recognized on start up....
Post by: Hoov on September 19, 2010, 10:51:46 AM
Hooking up a PS2 keyboard would be a waste of time I believe, as you are still using USB ports, and you have a known good USB keyboard, and it still does not work.

About hooking the two computers together, there is no way to do that until after you have windows running.

About the power connectors, even with just a CD drive, it might drag down the power supply, so lets try that. First, turn off the computer and unplug the power cord from the wall or the back of the computer, whichever is easier. There should be 2 maybe three connectors on the back of the drive. One of them has four colored wires going into a flat plastic connector that is white. That is the power connector. Pull it straight out of the drive. When you go to put it back in, it will only go in one way. If you look at the end of the connector that plugs into the drive, you will notice that two of the four corners are either rounded or clipped off at an angle. That way you can only put the connector in one way.  Once you have it unplugged, try starting the computer again with just the keyboard connected. Let me know how it goes.

If that still didn't work, plug everything back in, and put the card back into it, and we will try using Knoppix to see if it is a hardware problem.
Title: Re: keyboard has no power recognized on start up....
Post by: marms10 on September 19, 2010, 12:10:55 PM
tried that....message said the port was unplugged or something all the rest of the info read the same as before....tried the mouse in every port again and the light came on for every port on the bottom of the mouse just like it does on my cpu that works okay...so I my opinion there is lots of power getting to the usb's
Title: Re: keyboard has no power recognized on start up....
Post by: Hoov on September 19, 2010, 12:26:24 PM
Will the computer boot from a CD?
Title: Re: keyboard has no power recognized on start up....
Post by: marms10 on September 19, 2010, 12:38:11 PM
nope....we went through that the last time this happened....I've been looking at forums online...one guy was talking about this psu being bad or maybe the motherboard is starting to go....there were no virus's found either last time so I am sure that that is not an issue here....I don't know what to do short of taking it to my nearby computer shop
Title: Re: keyboard has no power recognized on start up....
Post by: Hoov on September 19, 2010, 12:47:24 PM
There is a tester that you can use to test the Power Supply (PSU) that is cheaper than taking it to a shop, and with a little guidance, it is easy to use. Are you game?
Title: Re: keyboard has no power recognized on start up....
Post by: marms10 on September 19, 2010, 12:52:12 PM
with your help yes...what do I need and how much are they approx.
Title: Re: keyboard has no power recognized on start up....
Post by: marms10 on September 19, 2010, 12:54:05 PM
remember last time I had a "low battery" warning and I went and bought a new one
Title: Re: keyboard has no power recognized on start up....
Post by: Hoov on September 19, 2010, 01:03:42 PM
About $15.

http://www.frozencpu.com/products/10939/psu-447/FrozenCPU_ATX_20_Ultimate_LCD_Power_Supply_Tester_2024_pin_ATX_SATA_P4_Xeon_PCI-E_Floppy_4_pin.html?tl=g11c133s88

I have one of these, and it works great.
Title: Re: keyboard has no power recognized on start up....
Post by: marms10 on September 19, 2010, 01:21:37 PM
do they work in any computer...?...I can probably get one from my local Staples store tomorrow....but I am not sure just where to plug it into
Title: Re: keyboard has no power recognized on start up....
Post by: Hoov on September 19, 2010, 02:42:05 PM
They are for the power supply. I don't think you will find one at Staples. If you have a hard core computer store near you, you may be able to get one. Chances are you will have to order it online.