A new ATX motherboard from MSI popped up, the Z77A-G45 Thunderbolt. Based on Intel Z77 Express Chipset, the board supports for Intel LGA1155 processors and is equipped with four DDR3 DIMM memory ...

Been looking more into the board and seems a bad BIOS flash could be behind this. Seems when MSI-z77a-g45 and infinite reboot is googled, the exact problem comes up multiple times.

When I tested four microATX boards based on the Intel G45 Express chipset, the $140 (street) ASUS P5Q-EM came out on top, although it got stiff competition from the Gigabyte EG45M-DS2H.

This file is written specifically for the desktop Intel® G41, G43, G45, Q43, and Q45 Express Chipsets and the Mobile Intel® GM45, GL40, and GS45, Express Chipsets and will not function with any ...