Question about Dell XPDFK Precision Workstation T3500 Motherboard Supported Processors Intel Xeon 6Core (X5670

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Reset the cmos

How do I reset the cmos on this motherboard

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This depends on what you're trying to do. If you've changed something in the BIOS itself and it no longer works, but you can't remember the default, enter the BIOS and press <Alt><F>. If you have a password on the BIOS that you can't remember, there is a jumper on the board itself that will clear the password. There is also a jumper to clear the NVRAM, which may help you.

The schematics for the jumpers are here:

If you've never used a jumper, you're looking for a little plastic bit on the motherboard. If you pull up on this plastic bit, (fingernails are very helpful here) you'll see two gold pins sticking up off the motherboard. This is a jumper. To deactivate the password or clear the NVRAM, remove the appropriate jumper connector (the plastic part) and power up your system for about 10 seconds. Then turn it off, replace the jumper and cross your fingers.

Hope this helps!

Posted on Feb 21, 2012


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Would like to reset CMOS on inspiron 6000 - will not boot up to BIOS How do I reset CMOS

During the boot process you will see on the screen to press a certain key to enter setup
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scroll to load failsafe defaults or load optimized defaults ,press escape then press f10 to save to cmos to restart this will reset your cmos after you make any changes in BIOS press Esc then press the F10 button save to cmos to restart
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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. Hope this helps

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The solution is to first try to reload CMOS settings. you can do this by pressing DEL at startup and getting into BIOS. then find the "reset to defaults" setting and reset the CMOS settings. This should solve the problems.
If that doesnt help, then you would have to change the CMOS batter on your motherboard. This is a quite simple task. It is a standard battery and is quite cheap.
Also some motherboards have a CMOS battery connector jumper, refer to your motherboard manual and check if you have this and reset it.
These are all simple tasks, but get someone to help you if you don't feel comfortable doing it yourself.

--------- Please rate the answer if it was helpful. Thank You!

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Is it possible to reset a motherboard?

you can reset motherboard bios & back to its default settings by jumpering the CMOS battery terminal.BE SURE TO TURN OFF PC OR DETTACH POWER CABLE IN DOING THIS STEPS.

all u have to do is take out your cmos battery that is located in your motherboard & jumper the positive & negative terminal of the cmos battery by using a metal like screw.make sure your PC is not turned on or pull out the power cable of the cpu to avoid damage to the motherboard.

some mother boards have pins to reset its motherboard bios. just transfer the jumper to its reset location commonly it has only 3 pins.

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Check the jumper near the CMOS batter. Usually resetting the jumper will reset the password. Be careful, though. And, if not sure, please check with the motherboard manual or remove the CMOS batter for at least a couple of day. That should reset you BIOS password.

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To reset your bios, you must open the PC/Notebook so that you can see the small Cmos battery controlling it. The Cmos battery is just a quarter coin mounted at the motherboard. Take it off from the mounting, but take note which side is facing the motherboard. This will reset the bios. Once you are able to take the Cmos battery, press the start button to dissipate the charge on the capacitors. After a
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There might be a jumper on your motherboard that's labelled CMOS, or reset... you just have to move the jumper to the other pin combination, power up your PC, then turn it back off and replace the jumper.
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Hi - Benimur

Hi again,

If your motherboard is for a desktop, there would often be a 3 terminal jumper very near the Lithium battery marked CMOS Reset. A jumper is currently positioned shorting one end and the center, temporarily removing this jumper and moving it to the opposite end/pair would reset the CMOS/BIOS. Alternately, you can also remove the 3.0Volts coin size battery for about 30 minutes wold reset the CMOS/BIOS.


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