MAJOR PROBLEM!! Please Help!

Right Guys and Gals,
Just built my new computer yesterday, it was running great until i left my mate on it. He decided he was going to have a look at the bios while i was out.
He has changed the system performance options in the advanced chipset area of the bios, there are three options: Auto, High Performance, Manual. He has changed it to high performance and when the computer auto-restarted it just makes long beeps with long breaks and nothing comes on the moniter, cant evan get back into the bios to change it?!!!

Computer Spec:
MSI K7N2 Delta Mainboard
Athlon XP 2600+ Processor
3D Prophet 7500 Dual Display 128Mb AGP Graphics
1Gb Ram
2x 80Gb Hard Drives

Any ideas of how to solve or what the problem might be are greatly appreciated.

Skin1301

 

clear your cmos, should go back to default settings and let you back in.

 

By the way, I have been told by a friend that the Beeps on restart sound like a memory issue???
Dunno if that is any help.

 

How do I clear my cmos?

 

I bet if you pulled the cmos battery out (or the dipswitch that disconnects the bios' memory) you could get the bios to reset to its default values. The cmos battery usually looks just like a watch battery and is easily removed in most cases. The dipswitch that disconnects it is typically nearby, or at least noted in the documentation. You obviously have access to a PC, so I bet you could look it up online if you don't have a printed manual for your motherboard.

 

I will try the battery, cheers.

 

BRILLIANT!!! Thanks Alot! Pulled the battery out and now it has rebooted fine!
Last time I will let my mate near it.
Thanks again.

 

next time. there should be a jumper right next to the battery with 3 pins put the jumper on the other 2 pins for a few seconds then put it back the way it was. that clears your cmos