Error message to replace the on board battery and yet same

May 14, 2017 at 00:31:17
Specs: Windows 7
After replacing my CMOS battery the system still complain of thesame thing and doesnt respond to any command given so what should I do?

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May 14, 2017 at 00:47:19
A computer may sometimes show error messages related to time and date options or other errors like 'no operating system or new CPU is installed'. All these are indications that it is time to change the battery of the motherboard i.e. the CMOS battery of the system. The depletion of this battery happens and hence it must be replaced ideally every five years. The replacement process has to be carefully followed to avoid any inadvertent problems. Saving the BIOS data prior to the battery change and configuration of the same, after the installation of the new CMOS battery, must also be done properly.

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May 14, 2017 at 03:01:04
Kirtiv, the OP has already stated that they have replaced the CMOS battery!

GODSGracE - CMOS batteries are sometimes kept in a warehouse for several months so it's possible the one you bought is not providing the full 3 volts that it's supposed to - - battery voltage can drop if kept in storage for long periods.

In the past I've had to buy two CMOS batteries (from different vendors) before I got one that actually supplied 3 volts when tested with my voltmeter, and I know (from reading posts on other forums) that this has been the same experience for other people.

Another common mistake is putting the battery in upside down, it won't register if you do that, so check it's the same way up as the old one was (the positive (+) side should be face up, I've never seen one where it has to be the other way up).

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May 14, 2017 at 09:45:18
Also be aware that measuring battery volts "off-load" i.e. not inserted into anything, or connected to anything, doesn't necessarily mean the battery volts will read as they will when the battery is "on-load" - in use... If the battery is poor, or already run down a little, then it may show as being OK - correct volts - "off-load", but once "under load" it will show a lower voltage. A minor difference is OK (no more than 5-10% at most); but anything greater - means replace the battery...

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Related Solutions

May 14, 2017 at 11:51:04
Are you saying you can't make any changes to to settings in the BIOS? Keep in mind, the setting can be made and should hold as long as you do not shut off the computer, even without a CMOS battery. The CMOS battery is only present to HOLD the settings when the computer is shut off.

If you can't make any changes that is either a keyboard issue or you are not keying in the correct commands. Please clarify exactly what is happening.

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May 14, 2017 at 20:07:18
Usually after that message you can press a key to go ahead and boot to the OS. Are you saying that's not happening?

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