@csab6597: "I have a very old mainboard Shuttle AE23 v1.1 and a cpu intel pentium3 
800mhz and some ram 256mb. these components were running in this very bundle 
for many years. then i removed it and had it in a box again for some years. 
now i wanted to build up a secondary system with these 3 parts, i attached a 
power supply, a agp graphics card and a keyboard. there is nothing else 
connected.
the problem is when i turn on the system, the cpu fan starts, power led 
lights up, the keyboard leds are flashing, and then... nothing. not even a 
beep, just a very quiet sort of blop coming out of the speaker, as if one 
turns off a big stereo amplifier. i tried different ram, different graphics 
cards, so this cant be the problem. I noticed the small led on the board did 
not light up when i connected power to it. after i replaced the bios 
battery, it lights up as soon as power is connected. but this did not help 
anything.
why is this board not running anymore??? it did so for a long time with this 
cpu...
thanks for any ideas, Rainer "
    @richardurbanREMOVETHIS: "You will have to enter the bios and reset to the default settings. Then try 
again. It could also be that the boards capacitors dried up with age. It is 
something that if used, is better than being in storage. It keeps the 
capacitors "formed" and able to accept the full charge as designed.
May be time for a new M/B.
Regards,
Richard Urban
Microsoft MVP Windows Shell/User
Quote from George Ankner:
If you knew as much as you think you know,
You would realize that you don't know what you thought you knew!
"Rainer Bitschi" <email_address> wrote in message 
news:435fae05$<email_address>
<quote>"
    @csab6597: ""uddarts" <email_address> schrieb im Newsbeitrag 
news:<email_address>
<quote>
well, i tested another known working power supply unit, mainboard still wont 
boot.
resetting bios as suggested in another post is simply not possible, because 
there is absolutely nothing on the screen.
the following came up my mind lately:
may it be possible that the bios chip got erased somehow, because the bios 
battery was definitely tired???
i know this normally is not the case, but what is normal here?"
    @richardurbanREMOVETHIS: "When the battery goes dead the CMOS "IS" cleared. Insert a new battery and 
the CMOS will go to the bios default settings, which may "not" be exactly 
what you particularly need or want.
Regards,
Richard Urban
Microsoft MVP Windows Shell/User
Quote from George Ankner:
If you knew as much as you think you know,
You would realize that you don't know what you thought you knew!
"Stephen" <email_address> wrote in message 
news:<email_address>
<quote>"
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