How to reset BIOS without use of monitor?

Well... I heard that by entering your computers bios, you could slightly overclock your computer speed. So, i went in to frequency changes, and did a couple minor changes I cant really remember. now, when i turn on my computer, nothing shows up on the monitor, but all the lights on the computer are on, and the fans running. I know my monitor is working properly, and so far I have tried to reset by holding down different keys, and i even went as far as to pull my motherboards battery out for about a minute and place it back in, but the problem is still the same. My computer that is having this problem is a pentium 4, 1.8ghz processor, 512 mb of ram (one stick), ATI radion 9600 graphics card (128mb)How to reset BIOS without use of monitor?
What computer are you on right now..and does it happen to have the same bios?



Im guess you changed your adapter setting for your video card.

Does your motherboard have onboard video. Can you hook your monitor up to another plug? I'd try taking the video card out booting the computer up turning it off then putting the video card back in and seeing if that does anything.



Thats reaching for a limp..though.



If you want to try to reset the bios ...somewhere usually near the battery is a 3 pin jumper. Move the jumper from 12 to 23. Then move it back. Your bios is now set back to factory.

Before doing this..make sure you have everything needed to get your computer running again..



You might need your video card cd..motherboard cd..ect. If you built your pc yourself.



If you can't find the jumper pulling the battery for about 30 minutes should reset it.How to reset BIOS without use of monitor?
could be a couple different things....



can you tell if the computer is actually booting? As in, does it go through the usual startup and load windows (you can usually deduce from the normal hardrive chatter, or you can give it a couple min and see if the double cntrl/alt/del gets you a reboot) If it's booting to windows you may have damaged the video card. Try throwing in a temp card from somewhere and see what that nets ya.



If it's not booting at all then it might be you clocked it too high for your chip. Depending on exactly which pentium you're running (and you didn't specify), they all have different core voltage requirements to run stable at different speeds. If the chip isn't getting enough power it will just go into dead mode.



Speaking of chips....if the chip is overheating at the new speed it can also go into dead mode. That's a standard safety trip on all the pentiums. (always a good idea to upgrade system cooling before clocking a p4)



One other common problem.....don't know what ram you're running and if it's running symmetrical clock speed with the pentium or not. You could be throwing your ram off with the new bus speed. (that would usually generate some error beep codes, but not always)



I would start by getting the cmos back to default. Pulling the battery should actually do the trick but you can also try using the jumpers to get a reset. (you'll have to look up the specs on your mobo for the correct settings on that)



You're next step would be to do a little more research on your machine specs and how to go about clocking the system properly. Lots of sites run through all the stable settings on various pentium systems.How to reset BIOS without use of monitor?
you can use the jummper setting to clear the memory bios to back to its default setting. you can see the jummper setting in the side of the battery clock of the mother board. ( See your user manual of the mother board to guide you step by step)