Solved keyboard failure CMOS error not the battery (Inspiron 519)

July 4, 2012 at 11:27:33
Specs: Windows 7, AMDX2 64 / Hynix 4gX4
So what the problem is is that first the OS was updated from windows Vista to 7. After word the display stopped working. I had changed the battery to reset the CMOS. checked power supply and changed out the ram. this brut back the display but there is a keyboard failure cmos error. no keyboard will work (only excepts USB). I feel this may be a driver change when the new OS was installed.Can some tell me if it is and is there a way to reset or install old drivers?

See More: keyboard failure CMOS error not the battery (Inspiron 519)

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✔ Best Answer
July 5, 2012 at 09:24:11
Have you tried a normal wired keyboard?

I am a hardware guy not a software guy but i try to help.



#1
July 4, 2012 at 11:42:25
Most vista drivers will work with windows 7.

http://www.dell.com/us/dfh/p/inspir...

Looks like you comp can only support USB

I am a hardware guy not a software guy but i try to help.


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#2
July 4, 2012 at 16:16:03
"but there is a keyboard failure cmos error. no keyboard will work (only excepts USB). "

Software problems CANNOT cause those problems.
The built in keyboard and the USB ports should work even when there is no hard drive installed.

The USB ports CAN be disabled, but they're enabled by default in the bios Setup settings.

Your video problem on the built in display had absolutely nothing to do with bios settings.

It sounds like BOTH the built in keyboard and NONE of the USB ports are working.

Your laptop is either DAMAGED, or there is (a) connection(s) loose inside of it. .

Have you, or is it possible someone else who had access to this computer...
- dropped it, or dropped anything on it, or otherwise exposed it to a physical jolt ?
- spilled liquid on it, or sprayed it with liquid, or exposed it to liquid such as rain ?

Since the video last worked properly all the time, has there been a power failure event that happened while the AC adapter was plugged in ?

Those things are the most frequent reasons something inside the laptop has been damaged.
.......

I have aa Acer laptop of a friend's sitting here that was dropped by the owner previous to my friend. The built in display did not work after it had been dropped, but the video displayed on an external monitor fine, and the compiuter worked fine other than that for several months, then the built in keyboard and all the USB ports stopped working.
.....

It is extrememly RARE for ram that worked fine in the same mboard previously to go "BAD", but it CAN develop a poor connection in the ram slots.

See response 2 in this - try cleaning the contacts on the ram modules, and making sure the modules are properly seated:
http://www.computing.net/hardware/w...

For a laptop, or netbook, you must remove both its main battery and AC adapter before you do that.

For a brand name computer, see the Owner's or User's manual if you need to - how to remove or replace the ram is usually in that - it may already be in your installed programs. If you can't get into Windows, it may be on a disk that came with the computer, or you can go online and look at it or download it - it's in the downloads for your specific model.


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#3
July 4, 2012 at 17:48:54
sounds like that would be a good solution exempt its not a laptop. This is a twoer and nothing works. keyboard mouse cd dvd nothing. the only thing that seems to work is the monitor. i have tried other keyboards and nothing works.
I have cleaned the board but i can try agin. I had disconnected the power and was where to cycle the power button for ten seconds or more well unplugged and no battery.

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Related Solutions

#4
July 4, 2012 at 18:47:14
I sometimes make some wrong assumptions when the person who started the topic HAS NOT SUPPLIED ENOUGH INFORMATION in the first post, and/or in the specs below their name there.

Tell us the make and model of your brand name system, or if you have a generic desktop system, the make and model of the mboard.

The model, sometimes the make, of a mboard in a generic desktop system is usually printed on the mboard's surface in obvious larger characters, often between the slots.

The specific model of a brand name system is often shown on a label on the outside of the case somewhere.

Dell makes Inspiron desktop and laptop computers.
Go here for how to find the Service tag "number":
http://support.dell.com/support/top...

Tell us what that is.
................

Everything I said in response 1 applies other than the stuff about laptops, and you're not likely to have dropped a desktop computer.

For a desktop computer.....

Failing power supplies are common and can cause your symptoms.


E.g.
The USB ports, PS/2 ports, serial ports, parallel port ?, floppy drives, and optical (CD and DVD) drives will NOT work properly if they're NOT getting what is supposed to be an accurate +5 v from the power supply.
The hard drive(s) may still work when there's no +5 v - at least, I've seen that they do when the computer is an AT system rather than an ATX system.

Is the PS fan still blowing air out of the back of the case ? If NO, the fan may NOT have been spinning for who knows how long, and in that case the PS has probably overheated and has fried it's components.

El-cheapo power supply brands are a lot more likely to malfunction and fail.
E.g. BESTEC power supplies commonly used in eMachines desktop systems are one of the worst.

What brand is your power supply ?
....

Try connecting a power supply from a working (ATX family) system that has the same (max total output) wattage capacity or more to your system if you can.
........

You can usually replace it with any decent quality standard sized standard ATX PS with the same capacity or greater.
(Unless you have a small form factor system, in which case you must replace it with an oddball smaller sized PS.)

Standard (PS/2) power supply size - 86mm high, 150mm wide, 140mm deep, or 3 3/8" h x 5 7/8" w x 5 1/2" d , or very close to that, though the depth can be more or less for some PSs.

Don't buy an el-cheapo (in quality) PS.
See response 3 in this:
http://www.computing.net/answers/ha...

I no longer recommend Cooler Master, AOpen, or Sparkle power supplies.
I'm now downgrading Thermaltake to middle of the road.
Antec has two lines of PSs - the better line has a longer warranty for the same or similar capacity - the other line is more towards middle of the road.
AMD has a list of Certified (tested and found to be good quality) PSs:
http://support.amd.com/us/certified...

Your power supply must have at least the minimum capacity required to support a system with the graphics card you are using installed, or the max graphics card you might install in the future.
(Onboard video - video built into the mboard - IS NOT A CARD ! )
If that info is not in the ad for the video card, you can go to the video card maker's web site and look up the specs for the model - often under system requirements - the minimum PS wattage, and, more important, the minimum amperage the PS must supply at 12v is stated. If you don't find that, any card with the same video chipset including any letters after the model number has very similar minimum PS requirements. Some power supplies have two or more +12v ratings - in that case, add those ratings to determine the total +12v current capacity, OR, if the max total amperage or watts at +12 v is stated, go by that instead (max watts at +12 v divided by 12 = the max amperage at 12 v).

I DO NOT recommend modern power supplies with a single +12 v output. Antec doesn't make them these days, and they've been making power supplys a long, long time.


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#5
July 4, 2012 at 23:11:36
Riider, its a Dell inspiron 519, says in the title.

I am a hardware guy not a software guy but i try to help.


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#6
July 5, 2012 at 09:10:26
This comp only supports USB the keyboard i use is an Apple would this make a difference? all the mouse i have connected light up. have cleaned the board agin still getting error.

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#7
July 5, 2012 at 09:24:11
✔ Best Answer
Have you tried a normal wired keyboard?

I am a hardware guy not a software guy but i try to help.


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#8
July 5, 2012 at 10:34:09
I am not shore what you mean? The computer only supports USB there is no other place for a keyboard. there is no PS2 plug.

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#9
July 5, 2012 at 10:36:18
I mean anything other than the 'ikeyboard', my word for the apple keyboard.

I am a hardware guy not a software guy but i try to help.


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#10
July 5, 2012 at 10:44:40
I am doing the work for some one ells i am trying to get there keyboard to see if it may be a unique keyboard for that system. I think it might be sync or some thing.

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#11
July 5, 2012 at 12:05:49
We have no idea which onboard video adapter or video card in a mboard slot the computer is using.

Go here for how to find the Service tag "number":
http://support.dell.com/support/top...

Tell us what that is.
................

Found on the web...

Apple keyboards are USB keyboards, and all basic functions will work just fine on a PC, with some limitations: the hardware control functions (volume control, brightness control, media control buttons, etc.) will not work, and the modifier keys are marked differently than those on a Windows computer (for example, the [option] key on a Mac keyboard is where the [Windows] key would be on a PC keyboard).

Read more: http://wiki.answers.com/Q/Will_an_A...
.....

So - assuming there's nothing wrong with the Apple keyboard, if it doesn't work at all, the Inspiron computer has a hardware problem.

Try a power supply from another computer with it, if you can. See response 4.

(It's very common for corded keyboards to develop broken wires inside the cord, usually right near where the cord enters the keyboard.

Wireless keyboards are another matter.)


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#12
July 5, 2012 at 16:10:38
i actually us the apple keyboard right now so i know its not that. i have tried other power supplies that was not it. no codes come up on the motherboard but that does not count it out.
i had let the PC sit and the display did not come on (black) when i booted.
i had removed three of the four 1gb ram and the display came back.

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#13
July 5, 2012 at 16:40:59
Youy have not told us
- the Service Tag of your model
- what the make of the original power supply is, and/or whether it's fan was still blowing air out of the back of the case when this first started to happen.

You will get no video in any case when there is no ram installed in the ram slots (if there's none built into the mboard - only some older mboards have that, mostly on laptops), or if there is a serious problem with the connection of the ram to the contacts in the ram slots.

As I said above in response 2.......................

"It is extrememly RARE for ram that worked fine in the same mboard previously to go "BAD", but it CAN develop a poor connection in the ram slots."

etc.

....but many people try randomly installing ram when the computer won't boot normally.

Ram that works in another mboard , or any ram you buy or have lying around, may not work properly, or sometimes, not at all - even if it physically fits and is the right overall type (e.g. SDram, DDR, DDR2, etc.; PCxxxx, xxx mhz) for your mboard. In the worst cases of incompatibility your mboard WILL NOT BOOT all the way with it installed, and the mboard may not even beep - the ram has to be compatible with the mboard's main chipset, or in the case of recent mboards, compatible with the memory controller built into the cpu.

If you DID do that, if you still have the ram that was installed when the system worked fine, and know which ones they are, try installing just that ram.

In any case, if there's nothing else wrong you should hear an error beep pattern when no ram is installed in the mboard (if the mboard has no ram built into it).

Make sure you have a speaker or speakers or the equivalent connected to the mboard so you can hear mboard beeps (see your mboard manual if you need to).
Remove the AC power to the case/power supply.
Remove all the ram.
Restore AC power.
Try to boot.
If nothing else is wrong, you will get no video but you will hear a pattern of beeps that indicate no ram is installed, or a ram problem.
E.g. for an Award bios or a bios based on one, that's often a beep of about a half second, silence for a half second, a beep of about a half second, silence for a half second, continuously.
.....



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#14
July 5, 2012 at 18:53:54
SOLVED!!!! The factory keyboard was the only one that worked for some reason. After i had connected the keyboard the error went away and the computer booted up to BIOS.
I have never herd of a keyboard being sync but theirs a first for every thing.

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#15
July 5, 2012 at 21:39:39
We're glad to hear that you solved your problem, BUT.....

There's no such thing as a keyboard having to be in sync !

The Apple keyboard should work too, as described in response 11, unless there are broken wires inside it's cord !

Your display problem had nothing to do with the keyboard or the bios settings !


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#16
July 6, 2012 at 02:01:39
Ikeyboards are wired?
I thought they were wireless and connected by bluetooth or something.

I am a hardware guy not a software guy but i try to help.


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#17
July 6, 2012 at 08:02:14
Your motherboard has a header for a firewire (1394) port and four headers for two USB ports each.
On some mboards the headers for a firewire port and a pair of USB ports are identical - 9 pins - a row of 5 pins, beside a row of 4 pins - a pin is missing in the same position on the header. The plastic at the bottom of the two different types of headers may be different colors, or not.
If that applies to your mboard (there are no close up pictures or diagrams of the headers in the manuals), in that case.....
If someone has been fiddling with the wiring connections inside the computer case, if a one piece wiring connector or multiple connectors for a pair of USB ports are connected to the firewire port header, or if the computer case or a port in an expansion slot space at the back of the computer has a firewire port (it mght have one in the front middle of your case in the same module as two USB ports) is connected by it's wiring connector(s) to one of the USB headers for two USB ports, nothing happens until something is plugged into the mis-wired USB ports or the firewire port, but when something IS plugged into the mis-wired port(s), all hexx breaks loose ! The circuits of whatever you plugged in to the mis-wired port(s) will be damaged in a very short time if not instantly, you may get (an) oddball error message(s) from the mboard's bios, you may get other oddball symptoms such as no video, and the circuits for the header or possibly even the mboard circuits otherwise will be damaged in a short time !
................

Documentation - English

Manuals
Dell™ Inspiron™ 518/519
http://support.dell.com/support/edo...

Quick Reference Guide (~ = Owner's manual)
http://support.dell.com/support/edo...

two USB ports on the top of the case
two USB ports on the middle front of the case - may also be a firewire port in the same module

power supply light (led) on the back of the case

Power light (led) page 23
blue -
- blinking - sleep state
- on all the time - power on state
(Should be on all the time the computer is running.)

amber -
- blinking - problem with system board
- on all the time, system does not boot - system board cannot start initialization - "This could be an issue with the system board or the power supply (see "Power Problems" on page 35)."

(The ram may have a poor connection in the ram slots.
If you have any card(s) installed in (a) mboard slot(s), it (they) may not be all the way down in it's (their) slot(s).
You mat get no video is f a video card is not all the way down in it's slot.)

page 24 - Power supply diagnostic light (led)
green
on - power supply is receiving power (live AC power to it)
(Probably should be on when the computer is not running when live AC power is connected to the power supply / case.)

off - power supply not receiving power (no live AC power to it), or power supply is not working (live AC power to it).

300 watt PS

If you have a video card installed in the PCI-E X16 slot......

Your power supply must have at least the minimum capacity required to support a system with the graphics card you are using installed, or the max graphics card you might install in the future.
(Onboard video - video built into the mboard - IS NOT A CARD ! )
If that info is not in the ad for the video card, you can go to the video card maker's web site and look up the specs for the model - often under system requirements - the minimum PS wattage, and, more important, the minimum amperage the PS must supply at 12v is stated. If you don't find that, any card with the same video chipset including any letters after the model number has very similar minimum PS requirements. Some power supplies have two or more +12v ratings - in that case, add those ratings to determine the total +12v current capacity, OR, if the max total amperage or watts at +12 v is stated, go by that instead (max watts at +12 v divided by 12 = the max amperage at 12 v).


Troubleshooting starting page 27

Solving Problems - Power Problems starting page 35
.......

Service manual
http://support.dell.com/support/edo...

Technical Overview

The 519 (AMD) mboard has headers on the mboard for pairs of USB ports (14, 17, 18, 19) and a firewire (1394) header (20)

Has a VGA port (onboard video), a PCI-E X16 slot, two PCI-E X1 slots, a PCI slot

Plugging in a PCI-E X16 video card disables the onboard video

(The onboard video is automatically disabled by the bios - no output from the built into the mboard VGA port).


Replacing the front I/O panel

Shows 3 ports - a pair of USB ports and a firewire port ? - in one module, front middle of the case.


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#18
July 6, 2012 at 14:20:08
I know the display had nothing to do with it, i think it was just dust or bad RAM. The display is back. as for the keyboard I'm as baffled as you. i use this I-keyboard every day and never have a problem with it. When i connected the factory keyboard the error went away immediately and i could accesses the BIOS and Windows. I updated the BIOS form the Dell web site and restarted. There was no more error. I have never encounters this problem before. i have used my I-keyboard on other computers and never had this problem before.

For the USB mis wiring I had disconnected every thing except for the HD & PS. The motherboard plugs on the inside are color coated to the wires. I have tried different USB ports and non of them worked. I had tried my I-keyboard right b4 i tried the factory one. same error tried the factory one no error


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#19
July 6, 2012 at 14:31:13
Bit odd for a keyboard, any keyboard, to just stop working with one computer.

I am a hardware guy not a software guy but i try to help.


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