Question about Mercury KVM400M-U Motherboard

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BIOS resetting after overclock failure.

Is there a key that I can press to reset my cmos without opening my PC to short the CMOS Jumper and leave alone the Del Key.

I had seen it on the Mercury Motherboard Manual but I don't have my copy.

Thanks.

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You can Indeed, you simply run a couple of wires to the place you normally reset the bios with the jumper block. Then hook a toggle switch to the other end outside your computer and WALA....PRESTO-CHANGO, you have a resettable BIOS without cracking the case....when you need to reset it, just hit the button and it happens.

Posted on Mar 05, 2009

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Can't enter bios page. I have a newly built pc (first time) with a asus 8h61-mx series, and when I turn it on, it will not ener bios page when i press F2, del or enter. Any ideas?


First off, on the ASUS website it says to try holding down DEL when the computer turns on. If that doesn't work make sure you have a PS/2 keyboard instead of a USB keyboard, if that works with a ps/2 keyboard then you'll need to turn on USB keyboard support or similar. If that doesn't work, try clearing the cmos, their should be a jumper, and a battery. Put it to clear with the jumper, and remove the battery. Then put it back, and move the jumper back. It should throw a error message saying the cmos and/or bios was reset, and will tell you to press a key to go to the bios.

Sep 14, 2013 | Computers & Internet

1 Answer

Has hdd password that i cant reminber any way to remove it


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 using the arrow keys scroll down to set user password or supervisor password you can change or remove your password from there

also

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.

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. Although on some motherboards the Cmos battery is soldered in Often many users will leave the administrator account alone or have other accounts with administrator rights. If you're not logging into the computer as administrator or have other accounts follow the below steps to reset your other accounts password.

Reboot the computer into Safe Mode


When logging into Safe Mode you should be prompted with an option to what account you wish to use. Select the Administrator account. If prompted for a password try pressing Enter on the keyboard for no password. If this does not work, try other passwords you may have used. If you're unable to log into the Administrator account skip to the next suggestion.

Once you've logged into the Administrator account open Control Panel and User Accounts.

Sep 24, 2011 | Computers & Internet

1 Answer

I forgot user account password.. I cannot open the my system.. How to open my system


which operating system? and which name type/brand of computer?

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 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.
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. Although on some motherboards the Cmos battery is soldered in Hope this helps you

Sep 17, 2011 | Computers & Internet

1 Answer

I want to reset BOIS password for Gigabyte GA EP43 motherboard which has no jumper, i try to remove battery but the problem unsolved~


There is a CLR CMOS jumper on that MB next to the SYS FAN 2 connector by the IDE header

open = no clr
jumped= Clear CMOS

From the manual page 32

Use this jumper to clear the CMOS values (e.g. date information and BIOS configurations) and

reset the CMOS values to factory defaults. To clear the CMOS values, place a jumper cap on the

two pins to temporarily short the two pins or use a metal object like a screwdriver to touch the two

pins for a few seconds.

• Always turn off your computer and unplug the power cord from the power outlet before

clearing the CMOS values.

• After clearing the CMOS values and before turning on your computer, be sure to remove

the jumper cap from the jumper. Failure to do so may cause damage to the motherboard.

• After system restart, go to BIOS Setup to load factory defaults (select Load Optimized

Defaults) or manually configure the BIOS settings (refer to Chapter 2, "BIOS Setup," for

BIOS configurations).

Jul 20, 2011 | Gigabyte GA-EP43-UD3L Motherboard

2 Answers

Hi im trying 2 reset my bios but carnt get in there i need 2 know what on and off pins on the board i can take off and where r they located


During the boot process you will see on the screen to press a certain key to enter setup
Press and hold that key during the boot up process to enter BIOS
after you make any changes in BIOS press Esc then press the F10 button save to cmos to restart
cmos is located in BIOS

Almost all motherboards contain a jumper that can clear all CMOS settings along with the BIOS password. The location of this jumper varies depending upon the motherboard brand. You should read your motherboard manual to check its location. If you don

Mar 25, 2011 | Acer Computers & Internet

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 Computers & Internet

2 Answers

"Reset you're cmos/bios jumper to


HI,
No need to worry. There are many known ways to reset / remove / bypass the password:
  • By removing the CMOS battery
  • By using the motherboard jumper
  • By using MS DOS command
  • By using software
  • By using Backdoor BIOS password
Now I'll try to explain each method one by one:
A. By Removing the CMOS Battery:
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Almost all motherboards use a small coin sized CMOS battery to store all BIOS settings along with the password. To reset the password, unplug the PC, open the cabinet and remove the CMOS battery for approx. 15-30 minutes and then put it back. It'll reset all BIOS settings as well as the password and you'll need to re-enter all settings.
If it fails, then try to remove the battery for at least one hour.

B. By Using the Motherboard Jumper:
Almost all motherboards contain a jumper that can clear all CMOS settings along with the BIOS password. The location of this jumper varies depending upon the motherboard brand. You should read your motherboard manual to check its location. If you don't have the manual then look for the jumpers near the CMOS battery. Most of the manufacturer label the jumper as CLR, CLEAR, CLEAR CMOS, etc.
When you find the jumper, look carefully. There will be 3 pins and the jumper will be joining the center pin to either left or right pin. What you need to do, is remove the jumper and join the center pin to the opposite pin. e.g. if the jumper joins center pin to left pin, then remove it and join center pin to right pin. Now wait for a few seconds and then again remove the jumper and join the center pin to left pin.
Make sure to turn the PC off before opening the cabinet and resetting the jumper.

C. By Using MS DOS Command:
This method works only if you have access to the system when its turned on because this method requires MS DOS. Open Command Prompt from Programs menu and provide following commands one bye one:
debug
o 70 2E
o 71 FF
quit
NOTE: The first character in the above commands is "O" and not the number 0.
After providing the above commands, restart your system and it should reset the CMOS Settings along with the BIOS password.
If you are curious to know how it works? then let me explain the above commands:
In this method we are using the Debug tool of MS DOS. The "O" character present at first in these commands, outputs the values to IO ports. The number 70 and 71 are port numbers which are used to access CMOS memory. By providing FF value we are telling CMOS that there is an invalid checksum and it resets the CMOS settings as well as BIOS password.

Jan 08, 2011 | Intel DG31PR Motherboard

1 Answer

Failure in saving BIOs I have bought a new motherboard G41-M7, and it worked properly for two days. However, today I have encountered a problem that the BIOs keep warning me CMOS overclock. I reset...


Enter BIOS SETUP.
Choose Load Factory Defaults.
Save/Exit.

Or, since the motherboard is less than one week old, it has a warranty. Exercise the warranty, to get a replacement motherboard.

Aug 02, 2010 | Biostar G41-M7 Motherboard - Socket 775,...

1 Answer

GA-G1975X OC FAILURE


reset the cmos either using the jumper if it has one or popping the battery out, then redo your bios on boot without overclocking to start then slowly adjust your fsb rebooting each time. if you remember the last setting before it crashed do not go that high. (remember to unplug the power cord before clearing the cmos)

Feb 21, 2010 | Gigabyte GA-G1975X Motherboard

1 Answer

Manual reset motherboard: Soyo SY-K7VME


Bios settings are retained by the Motherboard Battery in the CMOS. Disconnecting the battery clears CMOS and returns the settings to their original state. Typically this can be done by simply removing the CMOS battery and waiting about 15 seconds before reinserting and booting PC. Nowadays most Motherboard manufacturers supply a jumper to not only disconnect the battery but also ground the CMOS to effectively drain any residual power.

The instructions for your MB are found below. JP5 is located to the left of the battery and next to the PCI 2 slot on your MB. There is a Manual for your MB on this site and the MB layout can be found at

http://www.fixya.com/support/p281070-soyo_sy_k7vme_motherboard/manual-35533/page-5

Follow the steps below to clear the CMOS memory.

1. Clear the CMOS memory by momentarily shorting pin 2-3 on jumper JP5. Its white cap can easily identify this jumper.

2. Put the jumper back to 1-2 to allow writing of new data into the CMOS memory.

Jan 07, 2010 | Soyo SY-K7VME Motherboard

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