Question about Compaq Presario 1200,1600, Series CD ROM(297657-001) (EP8RDA3G) Motherboard

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No boot after removeing the battery and the c-mos battery for 1/2 hr to clear bios password the system will not boot again i dont what do to do

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Hi:
You need the manual.
You also need to know what bios you have.

Take the battery out for 24 hours.

Most motherboards I have worked on will not discharge in only a half hour. You need a lot more time than that.

You can also clear the cmos on the jumpers. Be sure you know which jumpers, otherwise you may damage the board.
By shorting two of three jumpers, the cmos will be cleared to factory settings.
thanks,

Posted on Sep 03, 2008

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1 Answer

X7DBI+ bios password


Hello here is the homepage:

http://www.supermicro.com/products/motherboard/xeon1333/5000P/X7DBE.cfm

Remove the cmos battery on the mainboard for like 15 min. and inset the battery again.

This will clear the bios and remove the password.

But you have to setup the bios clock, date, boot settings, when the pass is gone.

The cmos battery look like this:


1_12_2013_2_47_20_am.jpg

Please take antistatic precautions when working on the maniboard.

Good luck

Jan 12, 2013 | SuperMicro X7DBi+ Motherboard

1 Answer

Hey I am trying to log on to my laptop and for some reason FORGOT my password HELP PLS


When you boot up to the log in screen type in administrator as user to log in if you cant log in

Restart your computer during the boot up process you will see on the screen for a short amount of time press a certain key to enter set up press and hold that key during the boot up process to enter BIOS scroll down to set user password or supervisor password you can change or remove your password from there

if this fails to remove your password

The most common way that we know on how to reset or clear the BIOS password is to physically remove the power from the computer by disconnecting the power plug and then removing the Cmos battery for 30 minutes from the motherboard. Another way is to reset the clear CMOS jumper on the motherboard itself. Both of the 2 methods mentioned works because most motherboards use a battery to sustain the BIOS/CMOS settings for the motherboards PROM chip. So by cutting off cmos the battery power, the BIOS/CMOS settings will be erased.

what operating system and type of computer???

hope this helps you

Aug 27, 2011 | Toshiba Motherboards

2 Answers

Bios boot password on a Toshiba c655-s5049


When you boot up to the log in screen type in administrator as user to log in if you cant log in

during the boot up process you will see on the screen for a short amount of time press a certain key to enter set up

Press and hold that key during the boot up process to enter BIOS scroll down to set user password or supervisor password you can change or remove your password from there

also

The most common way that most of us know on how to reset or clear the BIOS password is to physically remove the power from the computer by disconnecting the power plug and then removing a battery for 30 minutes from the motherboard. Another way is to reset the clear CMOS jumper on the motherboard itself. Both of the 2 methods mentioned works because most motherboards use a battery to sustain the BIOS/CMOS settings for the motherboards PROM chip. So by cutting off the battery power, the BIOS/CMOS settings will be erased.
hope this helps dont forget to vote!

Feb 25, 2011 | Toshiba Motherboards

1 Answer

I need bios password for second/third hand dell latitude 131L laptop service tag is 92VRFD1 can you help


When you boot up to the log in screen type in administrator as user to log in if you cant log in

during the boot up process you will see on the screen for a short amount of time press a certain key to enter set up

Press and hold that key during the boot up process to enter BIOS scroll down to set user password or supervisor password you can change or remove your password from there

also

The most common way that most of us know on how to reset or clear the BIOS password is to physically remove the power from the computer by disconnecting the power plug and then removing a battery for 30 minutes from the motherboard. Another way is to reset the clear CMOS jumper on the motherboard itself. Both of the 2 methods mentioned works because most motherboards use a battery to sustain the BIOS/CMOS settings for the motherboards PROM chip. So by cutting off the battery power, the BIOS/CMOS settings will be erased.

cmos battery Under the keyboard or bottom of laptop - If you are working on a laptop computer the location of the dipswitch (almost never a jumper) can be under the keyboard or on the bottom of the laptop in a compartment such as the memory compartment.


hope this helps

dont forget to vote

Feb 21, 2011 | Motherboards

1 Answer

Bios password, how do i remove it. I need to change the boot system to install windows.


Unplug the power cord from the power supply.
The fastest way to clear the bios password would be to first find the bios/cmos battery on the motherboard. See the picture below.
8931cc0.jpg

Next find the 3-pin bios jumper. Asus motherboards usually mark the motherboard bios pins as, CLRTC.
It will be rather close to the bios battery. Pay attention to the current position of the bios jumper. It is currently set as normal. The jumper will cover pins 1 and pin 2.
Remove the jumper and place over pins 2 and pin 3. Doing this will clear the bios and will reset all bios settings to DEFAULT. Grab a small flat- head screw driver. Gently insert the screw driver slightly under the battery edge to help you to remove the battery. Wait 30 seconds and reseat the battery. Reset the bios jumper back to pins 1 and pin 2.
Reconnect the power supply cord. You will need to enter the bios and re-configure all your settings. Use your motherboard manual to help guide you through all your bios settings. Next time include the model number of your Asus MB.

Happy holidays!
Mike

Dec 19, 2009 | ASUS Motherboards

2 Answers

How to break bios password


remove CMOS battery for 1 minute then try to install it back

Jun 08, 2009 | Intel D945GCCR Motherboard

1 Answer

Chassis intruded!!


Clear RTC RAM (CLRTC)

This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, which include system setup information such as system passwords.
1. Turn OFF the computer and unplug the power cord.
2. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3 for about 5-10 seconds, then move the cap back to pins 1-2.
3. Plug the power cord and turn ON the computer.
4. Hold down the <Del> key during the boot process and enter BIOS setup to reenter data.

Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default position. Removing the cap will cause system boot failure!If the steps above do not help, remove the onboard battery and move the jumper again to clear the CMOS RTC RAM data. After clearing the CMDS, reinstall the battery.

You do not need to clear the RTC when the system hangs due to overclocking. For system failure due to overclocking, use the CPU Parameter Recall (C.P.R) feature. Shut down and reboot the system so the BIOS can automatically reset parameter settings to default values

Mar 18, 2009 | ASUS P5V800-MX Motherboard

2 Answers

Can't get past the system password prompt


you have to reset the cmos, take the battery out for 5 minutes without any power suppy attached, this should clear and bios passwords, then put the battery back in, you will have to set the date and time again

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4 Answers

Intel 945 GCCNL


Clear the CMOS in case of an emergency.

Although the BIOS usually runs without errors, it can become corrupt in rare instances. If you're unable to enter your BIOS, or if you set a system password in the BIOS but forgot it, you might be able to fix the problem by clearing the CMOS memory. On some motherboards, this requires you to turn off and unplug your PC, disconnect the CMOS battery for a few hours, replace the battery, and turn on your PC again. Other motherboards have a CMOS clear jumper pin that you must move to a temporary position and then return it to its original position. Check your motherboard's manual to see which process you'll need to follow.

If a clear jumper pin isn't available and temporarily removing the battery doesn't work, check the motherboard manufacturer's Web site for instructions about resetting the BIOS.

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5 Answers

Bad BIOS checksum.... CMOS bad checksum errors


BOOT BLOCK COMPATIBLE VERSION VER .005
BAD BIOS CHECKSUM

CHECKING FOR CD ROM
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
NO CD-ROM FOUND
CHECKING FOR FLOPPY DISK
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
NO FLOPPY DISK FOUND

Does someone already fix this problem??????

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