A. If your BIOS is not holding custom settings, it's probably time to change the CMOS battery. A good indication (although not the only one) that your CMOS battery has died is that the computer will not retain the correct date and time.
B. Most BIOSes have an option to turn off floppy drive detection at boot-up and/or disable the floppy drive entirely. Systems usually will barf errors if the floppy is enabled in the BIOS but no floppy drive is installed.
Given that you say the BIOS is constantly reverting to default settings, problem B is most likely related to problem A. A new CMOS battery only cost a few bucks; try replacing that first and see what happens.
DMR
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I agree that the cmos battery is probably your problem.
You might try this until you can get your new battery.
Power up but go right into cmos setup...
Correct your settings then save on exit but do not turn the machine off...
It should boot into the system...
If the battery is shorted out or excessively corroded you can remove the battery and do these same steps.
The cmos will reset every time the power is turned off but at least you can keep working until you get a battery.
Thong_Ispector
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And also make sure your boot priority has not floppy drive in it..
nanosani
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It could be...
Corrupt bios, flashed by virus
Damaged bios
Hidden corrosion at the battery socket
Once you have tried the basic.. pull everything except the video card test you could try to flash the bios...
Since downtime is expensive and motherboards are cheap by comparison...
Swap it out...
Thong_Ispector
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But it’s not the battery; I used a multi-meter to test it.
Althought the batterymay be good, you should be aware that getting a good voltage reading with a meter isn't a very reliable test of that.
Meters are fairly sensitive, and even extremely weak batteries will still have enough juice left in them to give you a good voltage reading on a meter. However, such a reading doesn't prove the batteriy's ability to supply sufficient current under a real-world load. Given that a new CMOS battery will only cost you a few bucks, it's probably worth trying a new one before you spend more time and money on the other options.
DMR
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