MOBO/BIOS issue

OK. I have an pretty old computer that ive fixed up, so to speak. I bought a new hard drive, and its all plugged in, and it works fine. my only problem is that this computer's BIOS says that it IS bootable by cd, but in reality it isnt. Also, im trying to set up an OS on this new drive, and cant get anything to install. Ive tried using boot floppies w/ cd-rom support to boot the OS installer, but when my BIOS gets to the "Please insert bootable media into the appropriate drive" prompt, whether or not there is a floppy/cd-rom in any drive, the computer shuts down after about 3 seconds after pressing <enter>. Ive tried removing the MOBO battery, RAM, all IDE cables and replacing them, but still nothing. I also wish to mention that my floppy LED light is ALWAYS on, and when i try to flip over the cable, the computer doesnt detect it. When i put floppies in, it doesnt even try to read them. Could it be a floppy drive problem causing all of this? I have extra floppy drives to spare....

thanks for the input

IHR

 

Yep, try a different floppy drive. Throw in a new floppy cable too.

If the floppy drive was working properly and you had a good boot disk in there, then it should just start loading from the floppy automatically.

 

hmm... i tried a different floppy drive, but same thing. I think the other floppy i tried is broken, because a pin in the IDE connector is missing. The floppy drive worked before... i tried flipping the cable on both ends... idn... nothing. even w/o a floppy, when my computer prompts me for a bootable media, it still shuts down after 2 seconds from pressing enter.

 

Hmm...maybe a new cmos battery? Maybe the BIOS is corrupt? Is there a jumper to reset it the BIOS?

 

cmos battery? is that the little watch battery thing in my mobo? what is a bios jumper? i bought this computer off of someone with nothing but the computer, so i have nothing. i tried removing the battery temporarily too see if it would reset my bios?

 

btw, the "cmos battery" if it is what i think it is, looks pretty old...

 

Yes, the cmos battery is the little watch battery looking thing on the motherboard. If the computer is several years old then the battery may be low or dead. I'd try replacing that first since it's relatively cheap.

** Unplug the computer first before you go to take the battery out. **

What you want to do is take the battery out for a period of time. (opinion differs on how long..I like 30min) This should reset the BIOS settings to default.

On most motherboards, there is also a jumper that will allow you to reset the BIOS settings. You'll have to check the motherboard manual or manufacturer's website for the location.

 

hmm... what would this jumper look like.... im not sure of the manufacturer of my mobo, all ive seen (i havent looked) is that its a pentium mobo.... ill look now.

 

ok, i looked but found no indication of a mobo model #.... would changing out the battery most likely help?

 

Take a look in the BIOS to be sure that the floppy drive is listed correctly, ie: 1.44MB (3.5 inch) and not 1.2MB (5.25 in.) and that it is the "A" drive. Also be sure that the boot order has the floppy drive first.


Good luck.

Kilowatt

 

ive previously checked all of this... all are correct

 

my question is what exactly does the CMOS battery do? I know it powers the mobo, but (if it is causing the problem) what exactly is happening if the battery is low or dying?

 

ok.... i tried replacing the CMOS battery, it works, all BIOS settings were reset, and STILL the frrrrrrreaking thing shuts off AFTER PRESSING ENTER. all other buttons are fine to press and it doesnt shut off, and not touching anything, it will stay on. the floppy light STILL stays on.... its a good floppy drive and a good cable... i dont know what is wrong with them!!!!! AGHHHHHH!

im about to blow this thing up

 

does anyone know whats wrong with this thing?