Mates asked me to look at it as it won't boot to windows 7. It's a good few years old with no issues other me having to replace motherboard battery few years back. HDD is M4 SSD drive. Has floppy and DVD drive. Motherboard is Biostar a77oe3. I've replaced the battery just in case but I think the motherboard has died? I've tried checking BIOS and altering boot devices but no change. Does a dead motherboard sound about right?