Solved Need to restore BIOS every time

Microsoft Windows xp professional w/sp2
March 26, 2012 at 01:31:55
Specs: Vista, 250/2GB
When I start my laptop it shows the startup text (F10 for Bios F2 fo diagnostics etc) for some seconds and then nothing more happens. I've figured out that if I go into BIOS (F10) and then set it to system default (F9), all is well and it continues the booting up.

But since I have to this every time, it must mean that something is CHANGING in BIOS since it doesn't work the next time (but works if/when I set it to default), right?

It all started with the laptop booting up like every second time, but now it never does it (if I don't change the BIOS). When I've got the system to start and choose to RESTART the system, it works fine, but the next day it's all the same again. Anyone have an idea of what's going on?


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#1
March 26, 2012 at 05:12:29
Sounds like your CMOS battery needs replacing. That would explain the loss of settings when the machine is switched off.

Without details of your system it's not possible to give more information.


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#2
March 26, 2012 at 05:23:01
✔ Best Answer
If the motherboard battery is dead, then CMOS ( BIOS settings ) contents may be lost after you turn the computer off. This could be the reason why you have to get into BIOS and apply BIOS defaults every time you turn your computer on.

Actually speaking, BIOS defaults do not need to be set because they are already defaults. But once you turn on your computer, BIOS does not recognize the hardware immediately after receiving power. You need to restart once again. This may usually happen if you added more RAM or another hardware. This way you changed the default configuration.

If your laptop is quite old, then you should contact laptop manufacturer for battery replacement. I believe laptops have motherboard batteries, too.

CoolGuy


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#3
March 27, 2012 at 00:35:40
Thanks. This problem leads to another. The CMOS battery is "integrated" in a plastic shell and fixed to a cable with a small connector, and it seems I have to replace the whole "set", not just the battery itself (and this item is not easily found at the sellers)....

(I have a Compaq CQ60, and the on the plastics around the battery it only says "0802.08", so I don't know what kind of battery is in it.... hmmmm)


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#4
March 27, 2012 at 09:45:43
... and when I finally found a retailer for that battery, I thought it was a bit expensive. What if there's nothing wrong with the battery? Shouldn't I get warnings saying "Battery low" or something? Don't want purchase a battery and experiencing the sam problem anyway....

Is there a way of measuring the CMOS battery capacity?


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#5
March 27, 2012 at 12:37:38
The correct way is to test a battery with a load tester. No person that I know of has such a small tester. Some of the home AA batteries and such used to be sold in a package that had a neat tester built in. Unless you find a package like that made for this battery then you can't tell. A common test is simple voltage. Compare it to a new battery. If within maybe 95% it may be OK. Test it in use on the motherboard not in air.

A Pit Bull is like a gun you can pet. And there is no safety on it.


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#6
March 27, 2012 at 16:51:41
"Shouldn't I get warnings saying "Battery low" or something?"

Not always with a low BIOS/CMOS battery level. First thing you usually notice is that the system clock starts losing (or less frequently, gaining) time. Thereafter, if it drops to a serious level, you'll start getting system configuration errors (such as what you are getting now). Sometimes the machine may state something like a "CMOS Checksum Failure" or "CMOS Battery State Low" error, but those occur generally after the battery is too far gone.

"Channeling the spirit of jboy..."


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#7
March 28, 2012 at 00:05:18
http://www.amazon.com/COMPAQ-PRESAR...

I wouldn't say that $6.78 was excessively expensive. That was just the first supplier that I found on Google; no doubt some are even cheaper.

You're not getting confused with the main battery are you?


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#8
March 28, 2012 at 02:58:08
That was a far better price than I could find ihere in Sweden where I live. (The best price here was like $30 for that kind of battery [not the main one]).
Thanks !

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#9
March 28, 2012 at 12:50:54
But the cheese is much less expensive there so it all equals out. :)

Get it Swiss cheese. HOooowwwooohhahaha

A Pit Bull is like a gun you can pet. And there is no safety on it.


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#10
March 29, 2012 at 00:36:13
Why is Swiss cheese cheaper in Sweden?

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#11
April 3, 2012 at 18:44:09
You don't have to pay duty and shipping.

A Pit Bull is like a gun you can pet. And there is no safety on it.


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#12
April 28, 2012 at 09:23:27
I tried to order the battrey from Amazon.com, but that item "could not be shipped to my country".... sad but true....

BTW Please note the difference between Sweden and Switzerland (Swedish/Swiss). Mixing them up just proves your "not-knowing-ability"... :-)


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