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Keyboard Error Message On Startup


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#1 adek

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Posted 16 November 2007 - 02:23 AM

I keep getting this message when I turn on my pc
Keyboard error or no keyboard present
The keyboard works fine as I have tetsed it with another pc

This is displayed on the screen if it helps:

Phoenix - Award BIOS v6.00PG An Energy Star Ally
Copyright © 1984-2003,Phoenix Technologies,LTD
741GX-M Ver 1.0F 08/31/2004

Main Processor :amd Sempron™ 2200+

Memory Testing:786432k OK with 32M Shared memory

IDE Channel 0 Master : SAMSUNG SP0411N TW100-11
IDE Channel 0 Slave : None
IDE Channel 1 Master : TSSCorpCD-R/RW TS-H292A TS02
IDE Channel 1 Slave : MATbleepA DVD-ROM SR-8585 1W21


Keyboard error or no keyboard present
CMOS cheksum error - Defaults loaded


Press F1 to continue, DEL to enter SETUP
08/31/2004-SiS-741-6A7I8E19C-00

The motherboard is made by ECS
model 741GX-M REV 1.0A
15-K13-011010


Thanks for any help

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#2 Budapest

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Posted 16 November 2007 - 02:27 AM

This "CMOS checksum error - Defaults loaded" error is often a symptom of a flat motherboard battery. First thing I would do is change the battery (it looks like a flat watch battery).
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#3 adek

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Posted 16 November 2007 - 10:32 AM

I have changed the battery and I still get the same messages

#4 garmanma

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Posted 16 November 2007 - 12:56 PM

Is this a PS/2 keyboard, a PS/2 with a USB adapter or USB? Try unplugging it then plug it back in and see if that clears it
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#5 adek

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Posted 16 November 2007 - 02:33 PM

It's a PS/2. I have tried a USB keyboard but that did not work either.

#6 DVtriple6

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Posted 16 November 2007 - 02:45 PM

Anybody think there are some disabled BIOS features here?

But anyway if you haven't already, try another PS/2 keyboard.

EDIT: Think clearing CMOS will help, anyone?

Edited by DVtriple6, 16 November 2007 - 02:47 PM.

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#7 garmanma

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Posted 16 November 2007 - 03:45 PM

Anybody think there are some disabled BIOS features here?

But anyway if you haven't already, try another PS/2 keyboard.

EDIT: Think clearing CMOS will help, anyone?

It won't hurt anything, go ahead and try it
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#8 garmanma

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Posted 16 November 2007 - 04:01 PM

I found the reason why but I didn't find a fix. When you boot your computer it boots to fast to be recognized or the keyboard is slow to be detected. If you have a quick-boot option in the BIOS, disable it and see what happens. Can you borrow another keyboard or buy a cheap one to see how it reacts to the problem?
Mark
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#9 groovicus

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Posted 17 November 2007 - 09:29 AM

Wouldn't it be a bit strange for the bios to recognize the keyboard, then to suddenly not recognize it, unless of course the bios was flashed, or something else was upgraded, and the Op forgot to mention it?

@adek, did you do any kind of updates or upgrades before the problem occurred? If not, my bet is that the keyboard controller on the motherboard went bad, especially since neither a ps2 or USB keyboard works.

#10 adek

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Posted 17 November 2007 - 09:54 AM

Hi there, no upgrades or changes were done-turned it on and this happened. The keyboard works fine on other pc's and when I turn on this one the lock lights flash.

#11 usasma

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Posted 17 November 2007 - 10:23 AM

Are you saying that you can't even press F1 to continue? If so, and the keyboard works fine on another system, then it's likely that either the hardware supporting the keyboard is broken - or that the software/firmware doesn't recognize it.

Since the BIOS POST's until the point where it detects the keyboard, I'd suspect that there's a controller issue. And, since it performs the same with a USB and a PS2 keyboard, I'd suspect that there's a problem with the motherboard that can't be fixed (since you'll need a keyboard to get into the BIOS to fix it).

I'd ensure that the USB keyboard is working also. Then I'd try (with both keyboards) repeatedly tapping "Del" as soon as you turn the system on. If you end up in Setup, then you may be able to work with it. If you still can't get into the BIOS - then I'd have to suspect that the motherboard is bad.
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#12 Robert Isbell

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Posted 18 November 2007 - 10:25 PM

one either the ps2 ports are disabled or configured wrong in BIOS, or the boards failing.

Edited by Robert Isbell, 18 November 2007 - 10:26 PM.


#13 groovicus

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Posted 18 November 2007 - 10:29 PM

one either the ps2 ports are disabled or configured wrong in BIOS


Ok, I'll bite. How will that effect a USB keyboard?

#14 adek

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Posted 19 November 2007 - 04:32 AM

I tried pressing del as you said but nothing happens.Is there any way of getting into the BIOS without keyboard or is the motherboard gone?

#15 groovicus

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Posted 19 November 2007 - 07:37 AM

The only common point between a usb keyboard and a ps2 keyboard is the keyboard controller.... well, I should say the first common point is the keyboard controller which is part of the motherboard. I can't think of any other possible reason other than the motherboard that would cause that to happen.




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