32 replies to this topic

[tezza]

There are 2 ways you can reset your bios.

1. On the motherboard there is a small watch battery. Remove this battery along with the power cable from the power supply. Hold down the power button to fully discharge the system. Wait 2-3 minutes then reinstall the battery and plug in your system. Your reset is now complete

2. Some motherboards have a 3 pin jumper by the battery. Lets say that the jumper is on pins 2 and 3. Remove the jumper while the machine is OFF and place onto pins 1 and 2. Power on your machine for a minute. (Note: Your system will not POST). Shutdown your machine and put the jumper back to pins 2 and 3. Your reset is now complete


This is a great troubleshooting step for those of you having POST issues or no POSTing at all. Like other troubleshooting steps, this will not always work but usually will depending on the problem.

[Mjay06]

This would probably make more sense to the novices amongst us if you explained why you would need to reset your bios. Some of the younger members may not have the first clue what you are on about.

Edited by Mjay06, 21 July 2006 - 12:58 PM.

[kdr_98]

Normally after a bios upgrade you have to load bios settings with defaults.

Because some things maybe added in the newer version.
And they use bytes that were not in use in the previous version, so the setting can be anything.

Another reason is that you might have setup something that wasn't right (like CPU speed).
Then you have to clear the entire bios (like described here) because else the computer won't startup.

So in normal use of a computer you don't need to clear the bios, this is only when your computer doen't boot due to incorrect settings od CPU (or memory) or a BIOS upgrade.

But I thinks it's better to read the manual of your mainboard, because the procedure is not always the same.

[iGuest]

Thank you so much guys, You saved my life.. Yesterday I over clocked my machine too much and it wouldn't boot and I couldn't see where I could reset my bios. But after reading this guide, it was up.

Thank You!

[iGuest]

It is not neccesary to power your system on and off. Removing the battery for the CMOS ( complimentary metal oxide semiconductor ) will reset the BIOS (Basic input/output system) to default settings. There might also be an option within the BIOS to "Load Defaults" if that is all you are looking to do. You can also check your manual to see if you can locate a BIOS reset jumper on your motherboard.

-EchoTechsys

[iGuest]

Reseting BIOS
How To Reset Your Bios (guide)

According to the instructions from Tezza I did reset the BIOS by removing the battery and put it back together and it worked but it came back with instructions asking to set time I just clicked on continue to reset and it didn't set the time and the calender I had to do it manually will this affect it in a long run? Or should I have to reset it and set the time and the date through the BIOS?
By the way the computer runs perfectly at the moment.
Ta!

[iGuest]

Reset BIOS
How To Reset Your Bios (guide)

I recently had the same problem where the USB keyboard suddenly wasn't detected anymore after working well for more than a year since I bought the PC.

Removing the battery from the motherboard worked fine to reset the BIOS.
Even after the BIOS was reset USB legacy support was still enabled though.
Don't know what went wrong in the first place, but everything is working fine again now.

Thanx for the help!

-reply by Boenjan

[iGuest]

Reset BIOS Password OF Comapq Persario 2800
How To Reset Your Bios (guide)

Guys...
I hv a Compact Persario 2800 laptop and I hv forgot the power on password...What shall I do...Please help me...
Ronak

-question by Ronak

[Saint_Michael]

Ronak, Your best bet is to contact Compaq support to help you out with your problem as they will provide better support since I doubt anyone has the same computer as you on this forum.

[iGuest]

Beep sound before bootingHow To Reset Your Bios (guide)

My Microsoft xp laptop makes one beep sound whenever it wants to beep boot and I have to enter my password before it can continue booting, does anyone know what I can do to eliminate the beeping sound?

Your suggestion will be appreciated!

 

-reply by Theo

[iGuest]

I don't know much about computers but this thread helped me immensely.  I was installing a wireless keyboard and mouse to my gm5407e and my computer just kept resetting itself...Then it just stopped working all together...No signal to the monitor.  I had no clue what the problem was.  After reading several threads and ordering a new and seperate video card...I happened upon this thread...So I took out the little bios battery and I at least got my signal back to the monitor again...Now it's running a 'startup  repair' I'm not sure if my problem is completely solved, guess I'll know in an hour or so. Thanks for the help!

[iGuest]

Try booting to "Setup" go to Security in the selections and you should have access to disabling the password on boot requirement

Hope this helps

 

Best Regards, Mike

[iGuest]

How to Get into BIOSHow To Reset Your Bios (guide)

I'm pretty sure I need to reset my BIOs. I installed Ubuntu on my other machine and then wanted to reinstall windows. It wouldn't install and I read on some forum somewhere to start reinstalling Ubuntu and stop it just before the install, but after it had wiped the system. That worked and I got windows back on, but now the machine doesn't recognize the modem. I ran all the diagnostics and determined I've probably messed up the BIOs, but now I can't figure out how to reset the BIOs. I took the case off and looked isnide. It's pretty crowded  in there and I can't see any little watch battery or a jumper cable near the battery (actually I'm not sure where the battery is) If I knew how to get into the BIOs maybe I could reset it to default, but I'm not sure how to do that either. I do not have a manual for this machine. I got it used. Any advise?  -- other than quit mucking around. Will be grateful for any help.

Thanks, Julia

[iGuest]

Compaq Presario 1528CL, Power on Password ResetHow To Reset Your Bios (guide)

I have forgotten Power On Password of my Compaq Presario 1528CL machine. Please help me out to reset bios OR Power ON Password. I have tried it, by removing CMOS battery for 24 Hrs but same problem still exists.

Qurban 

-question by Qurban Ali

[yudhisth]

hi there

i've tried the suggestion but it can reset my bios to its factory default.

i'm using pc atom with mainboard

Intel® Desktop Board DG945GCLF.

and then i had got virus trojan that cause my pc cannot work to its windows xp program.

i tried to get in the BIOS and there's this sentences in the advanced area "Setup Warning : Setting items on this screen to incorrect values may cause system to malfunction!"

and when i tried to check drive configuration it state my hard drive goes to SATA 0 and i can't change that.

when i checked the Boot area and the CD/DVD ROM Drive not detected. and that's why i've tried to restore the factory default.

what should i do now???please advise.

[iGuest]

Replying to tezzaI have a gateway laptop and I reading about the switching the pins and the battery on the motherboard to reset the bios password...Can u tell me exactly where is it located or can u give a redirectory I can go to and to get a manual for the motherboard..-question by lisa

[iGuest]

A. By Using the Motherboard Jumper:

In most motherboards CMOS battery is soldered, which makes it difficult to remove the battery. In this case we use another method.

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.

B. By Using Software:

I have found that BIOS/CMOS Password Recovery Tool is the most effective.:BIOS/CMOS Password Recovery Tool is a program that works instantly to remove any lost or forgotten BIOS/CMOS password. Simply boot your PC to DOS and execute the program, and get access to forgotten BIOS/CMOS passwords in just seconds

BIOS/CMOS Password Recovery Tool  Service:  http://www.Biospasswordrecovery.Com/

-reply by happymark

[iGuest]

Cant get computer out of BIOSHow To Reset Your Bios (guide)

When I start my Dell C840 it goes to boot and screen says media test failure. I changed my hard drive but still having problems. Please help!

-reply by Mike

[iGuest]

CMOS checksum error - Defaults LoadedHow To Reset Your Bios (guide)

Power went off while using the PC and when it came on the Fan started running with no signal at the Monitor. In POSt it says something like CMOS check sum error - Defaults Loaded

And place F1 to continue F11 to set the BIOS immediately I set the date and Calender the PC will shut down until I remove the CMOS thats wen it will boot. It cant even restart once you command to restart instead to will shut down. Please help me

-reply by Obed Samusiko

[iGuest]

please help, i lost the bios and booting menu in my Dell 1420 inspiron.How To Reset Your Bios (guide)

hello everyone.

I really got a big problem with my computer while I was trying to install linux using virtual box.

my lecturer gave me assignment to install linux using virtuall box but while I was installing the linux, the computer shutdown. When I tried to power it up,I couldn't see the bios nor the booting menu. Also there is nothing in the screen except the light.

I connected it to external LCD. There is no bios but I can see some of the operating system.

I replaced my hard disk in another computer and it worked fine.

please guys tell me what to do.

-question by alawi

[iGuest]

Dead VaioHow To Reset Your Bios (guide)

I upgraded the memory to my daughter's Vaio before she returned to college. After a couple of months, the computer quit working. It will turn on and you can hear the hard drive working, but no beeps, no booting and no video--neither the flat panel display nor a remote monitor shows anything.

 After doing a bit of reading online, I suspect maybe the memory upgrade may be at the heart of this problem. Unfortunately, the original memory modules are back in her dorm room, so to go that route, I have to send her back to school with a dead computer and hope replacing the memory to the original mods will do the trick.

 I've also read about flashing the bios (resetting it, whatever), and I'm wondering if that's worth trying before doing the memory thing. I gather there are risks involved. I'm also curious about whether a dead CMOS battery would cause this problem. We bought the computer (a floor demo model) 4 years ago. So maybe changing the battery (assuming I can get the old one out) would do the trick.

 I'm prepared to buy a new (used) motherboard on Ebay, but I don't want to spend $200 and have it not work. Would replacing the motherboard (assuming the new one works) be a better approach?

Thanks!

-reply by Eric Johnson

[iGuest]

i cannot get my emachine D620 to startHow To Reset Your Bios (guide)When I turn on my machine it says check cable and then says it cannot find program. What can I do? Thanks-reply by wendy

[iGuest]

Dead VaioHow To Reset Your Bios (guide)

How To Reset Your Bios (guide)

 I had a similar problem with my computer except my computer was a custom built desktop. When I tried to boot I received no video feed and the only sound I could hear was the hard drives spinning.

In the end I replaced the motherboard and everything worked fine.

-reply by V4MP1R3

[iGuest]

Puzzled!How To Reset Your Bios (guide)Hi, I have a really old Toshiba Tecra 780DVD, it was given to me from my cousin because he forgot the password... What I want to know is how to reset the hard drive or something along those lines but without having to re-install the operating system I am determined to get past this password! Please reply.-reply by Bobby

[iGuest]

CMOS checksum error - Defaults LoadedHow To Reset Your Bios (guide)

HI you must change the jumper beside the bios to other no from pin ex 1and 2 to 2 and 3 must be remove  connection power cable first this will reset your BIOS and releive your errors after that return back your jumper to the previous position and enter to bios page put your new options as first boot from hard desk or cd room as u need and save exit thank you