Question about ASUS VIA KT133A Chipset A7V133-C Motherboard

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Change dead battery bios

Reset bios to default

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Re: change dead battery bios

Turn off computer and un plug power cord. then press and hold power button for ten seconds, then open her up and take out the battery (carefully). wait for 4-5 minutes then put in a new battery + side down, - side up. then close her up, plug her in and turn her on. bios will take care of the rest.

Posted on Nov 01, 2007

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If you changed the CMOS battery you in effect reset it. On boot up, go into the BIOS setup and check all settings. Even if you don't change any of the BIOS settings, save them as if you did and it will reboot. Should be OK then.

Apr 02, 2015 | Motherboards

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I need motherboard driver and setup spec for VER:5. The board does not boot to BIOS or provide video via AGP or PCI. BIOS chip label stamped BK40 3457 (686 AMIBIOS). I DO NOT KNOW HOW TO CONFIGURE THIS...

Simple test: disconnect all disks, remove the BIOS battery for 10 minutes, put it back (this resets everything to default factory settings) then try to boot in the BIOS - if it fails then the motherboard is defective - no BIOS update can fix that.
The board is dead, time for a new pc.

May 02, 2011 | Motherboards

1 Answer

My CPU keeps showing BIOS checksum error when booting up even i changed the battery with a new one

Remove the BIOS battery fr approx. 15mins (this will reset the BIOS back to the default settings) then insert the BIOS battery and configure the BIOS Date and Time etc.

Mar 22, 2011 | Asrock P4I45GV R5 Motherboard

1 Answer

I can't get into the Bios of me ASUS A7V8X Motherboard. I hit del and nothing happens. until i stop hitting del, then it just starts windows xp up normally. Every now and then it enters the bios on it's...

Probably the battery. Easiest way to check is first disconnect from internet, then check date in xp, if says year 2000, your bios has been reset to default, probably from dead battery. Check by unplugging computer and pressing power button 2 or 3 times, then remove button battery and move pins to clear cmos, after 10 seconds, replacd pins and reinstall battery. Bios should then boot to default settings. In General tab, set correct date. If xp still shows incorrect date, you have a dead battery.

Nov 23, 2010 | ASUS A7V8X Motherboard

1 Answer

Bios date is not being saved

it has to be the battery contacts, the motherboard is loosing contact with the battery which is why it keeps resetting itself

Jul 06, 2010 | Motherboards

1 Answer

I have a PCchips M701 that wont boot after long time I dint use.

It's unlikely that the BIOS itself has been "erased".
The BIOS is "software", recorded on a small "Eraseable Programmable Read Only Memory" chip.
It takes a piece of hardware, an 'EPROM-writer' to update the contents of the chip. Or, the BIOS can be updated by a "BIOS-update" from the manufacturer of the motherboard.

The BIOS has "settings" -- the battery on the motherboard should supply a "trickle" current to the chip that holds those "settings" -- like an alternator provides a "trickle" charge to recharge your automobile's battery.

Try using the "BIOS reset" jumper on the motherboard, to reset those "settings" to their default value, and then try to boot the motherboard.

Jun 10, 2010 | PC Chips (M925G) Motherboard

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BIOS is not updating, each time system boots it begins "press F2 to load default values". I have also replaced cmos battery with a new one.. Please help how to fix this.

This usually occurs due to bad cmos battery but since you have changed the battery you should check that the bios reset jumpers are in the right position not in the reset position. If they are in the reset position then they reset the bios every time you start your computer.

Hope that helps.

Oct 25, 2009 | ASUS P5RD1-VM Motherboard

3 Answers

How to reset the bios p4 titan ga-8id533 motherboard

As the computer starts up hit the Del key, that will take you into the BIOS utility, once in the BIOS load optimized defaults, this will reset the BIOS configuration.
Failing this just remove the power cord from the back of the computer and take the motherboard battery out for 20 minutes, this will fully reset the BIOS so you will have to input the time and date.


Jul 14, 2009 | Gigabyte GA-8ID533 Motherboard

1 Answer

M2N-SLI Motherboard issue.


If your computer was ok before you changed parameters in Bios then it is Bios fault:
Re inter Bios and Try to reset it to default.
If you can not get into Bios anymore  the problem is serious:
You must reflash Bios or reset Cmos ,and it could be vga or may be the wifi if you have one onboard.
see if you have a hardware store nearby and let someone fix it
if you .
It seems to be a common problem on all Asus Motherboards:
bios,vga,post etc...

Dec 12, 2008 | ASUS AI Lifestylestyle M2N-SLI Deluxe...

1 Answer

P4s533 mainboard

Reset BIOS back to default
1) remove M/board battery for 5 to 10 minutes
while booting press the DEL or F2 or ctrl+esc
or check lower part of screen during boot will tell you hoe to fet into BIOS
Once BIOS reset to default boot computer if OK.
you can change BIOS to suite CPU etc

Oct 29, 2008 | ASUS P4S533-MX Motherboard

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