Acer G41M07 is a micro-ATX motherboard commonly found in the Acer Veriton M275
Pro Tip: On many revisions of this board, there is no jumper at all. If you see only two exposed pins with no plastic jumper cap, simply short those two pins with a flathead screwdriver for 5 seconds to reset the BIOS. acer g41m07 motherboard manual
Note: Some versions use DDR3 (1066/800 MHz), while others are documented as DDR2 (800/667 MHz). Verify your specific board's slots before purchasing. Expansion: 1x PCIe x16, 1x PCIe x1, and 2x PCI slots. Acer G41M07 is a micro-ATX motherboard commonly found
If the board won't POST or you're locked out of settings, you can perform a manual CMOS reset Acer G41M07 - The Retro Web ManualsOnline : This website hosts a large collection
The G41M07 is notorious for corrupting its BIOS if the CMOS battery dies completely or if a power surge occurs. Without a manual, you won't know the recovery procedure. Here it is: