My motherboard is a Gigabyte GA-6VXE7+ (rev. 1.0). Without a battery installed the motherboard starts and posts, I can enter bios etc. Everything seems fine. With a battery installed the motherboard doesn't react at all, no fan spin, nothing. The pwr header still has 5v but shorting does nothing. I need to remove the battery, turn off the psu, wait until the voltage on the pwr header drops to 0V. After that the motherboards starts again without a battery. To me it seems like a short somewhere when the battery is installed. I also have removed the battery holder and found some battery leakage which I have cleaned up, the traces below seemed ok to me there. My other theory is the diode which connects to the battery 3v line. The place where the rtc and cmos ram is located seems to be the southbridge VIA VT82C596B. I don't know how to go further, any ideas?
did U ever reset the BIOS?
Yes, with its cmos reset jumper. Even started the board without the eeprom at all. Electrically it starts with the battery removed.
Try to remove the holder and replace it with
Even started the board without the eeprom at all.
and what does the board do w/o the chip?
Yes, with its cmos reset jumper. Even started the board without the eeprom at all. Electrically it starts with the battery removed.
The holder is already removed. If i just touch +/- from the battery to its solder points the board will refuse to start.
Even started the board without the eeprom at all.
and what does the board do w/o the chip?
it just starts as usual, fans spinning. But only with the battery not connected. No difference, except no beeping at all since no code is executed.
With just the battery connected but no psu i measure 0.6v on the pwr header. Is that behaviour normal? On an another board there is always 0v.