My old A7N8X-Deluxe was replaced with a A7N8X-X. But yeah, isn't the BIOS itself hardcoded onto the chip? I don't know why the old BIOS image from my A7N8X-Deluxe would still be on the A7N8X-X mobo. I wonder if I reset the jumper if the mobo would load the default BIOS.

I'll check the heatsink. Oh, and I have an Athlon XP 3000+ @ 2.17GHz.