E-Machines T3418 PC Desktop Motherboard Layout

https://support.hp.com/bg-en/product/Compaq-CQ2000-Desktop-PC-series/3942830/model/3965327/document/c01728332

These steps may not work for you, and without further information, it is difficult to make useful suggestions.

You can use the Comment menu to provide more information.

https://support.hp.com/bg-en/product/Compaq-CQ2000-Desktop-PC-series/3942830/model/3965327/document/c01728332

Warning: Incorrect settings may produce undesirable results. Please research thoroughly before making any changes.

You can set the jumper as follows:

Clearing the BIOS settings
CAUTION: Do not change any jumper setting while the computer is on. Damage to the motherboard can result.
This motherboard has jumpers to clear the Real Time Clock (RTC) RAM in CMOS.

Clearing CMOS

To clear CMOS, follow these steps:

1. Temporarily set jumper Clear CMOS (CLRTC) to pins 1-2.
2. Wait 5-10 seconds and then return the jumper to pins 2-3.

When you startup the PC you will need to enter BIOS setup to reset any custom BIOS settings.

Clearing the BIOS password

The BIOS password is used to protect BIOS settings from unwanted changes. If you have forgotten your password you may disable password checking.
To erase the BIOS password follow these steps:

1. Turn OFF the computer and unplug the power cord.
2. Locate the jumper labeled Clear P.W. The jumper is found at the lower right edge of the motherboard.
3. Move the jumper on jumper Clear P.W. to pins 1-2.
4. Plug the power cord and turn ON the computer.

Hold down the F10 key during the startup process and enter BIOS setup to change or clear the password.

After changing or clearing the BIOS passwords, remember to reset the jumper to pins 2-3.

Source:
Motherboard Specifications M2N68 LA Narra3


Product information

Hello here is the homepage:

http://www.dell.com/support/drivers/us/en/04/Product/dimension-4400

To clear the CMOS values
1.Turn OFF the computer and unplug the Power cord.
2. If your motherboard uses jumpers move the jumper from pins 1-2(default) to pins 2-3. Keep the cap in this position for about 10-15 seconds, then move the cap back to its original position.
If you motherboard has only two pins for CMOS reset , then you may use use a metallic object like a wire to create a contact between the two pins for 10-15 seconds.
3.Plug the power cord and turn ON the computer .

The bios can also be set to reset, by removing the cmos battery.

Hope this will help you.

1. Usually there are 3 pins, and you put the jumper on 2 of them to clear CMOS, then return them to the other 2 for normal function.


2. What you're describing seems more like a dead motherboard battery. Replace it and the computer should hold the time and date.

Hi,

Most motherboards have a jumper switch usually situated close to the CMOS battery. The jumper usually connects over 2 pins with an open pin next to these. By moving the jumper over to the open & center pin you will reset all BIOS settings, including your BIOS password. Move the jumper back to its original position before turning your PC on.
In some instances you will find no BIOS jumper. In such a case you can clear the password by removing the CMOS battery from the motherboard for a few seconds and then replacing it.

Best wishes,
Graemevm

Hi,

To reset the CMOS the easiest way is, remove the motherboard battery for ten minute then install it again. It will clear the CMOS. Then reset the CMOS/BIOS setup, date/ time etc. Another way to clear CMOS is, reset the CMOS Jumper in motherboard.

To detect your hard drive you can try to check by change the hard drive cables. Change the port in motherboard. Check the BIOS setup and reset it if need.

A. By Removing the CMOS Battery:

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.

you can try pulling the motherboard battery for 10 min.(unplug the unit first) also on your board should be a jumper to clear it. it can be labled as clear CMOS or PW or PASS or any variation. most of the time this works. if it is a BIOS bassword this probably wont work and you will have to contact Dell. you will have to show proof of ownership and jump through hoops.

I would consider a bios update but first clear the cmos this way.

1) unplug the computer
2) remove the motherboard battery
3) push the power button in and hold for 15 seconds to discharge the caps
4) use the motherboard jumper to clear the cmos, this is explained in your manual
5) Leave the computer like this for 30 minutes to ensure a good clear, this is a little extreme but do it just to make sure.

Move the jumper back to the normal operating position, reinstall the battery, plug it in, cross your fingers and try and boot from cd.

There are 2 ways to clear CMOS on any desktop PC.

1st There will be a set of 3 pins near the motherboatd battery with a jumper across them. Move the jumper over and wait 30 secs then move back. Remember to remove the power cable first.

If you can't find the CMOS pins and jumper then remove the power cable and also the 24 pin motherboard power connector and the motherboard battery and leave for 24 hrs.

Replace battery etc and away you go.

Why do you want to clear the CMOS?