Gigabyte is known for it's "Ultra Durable" mobos, and the fact is true. All Gigabyte mobos have a good capacitors, vrm that passes all Gigabyte's "hardcore" QC to ensure quality.
Most mobos can live up to 8 years, and if you use good ventilated case and a good PSU your mobo can last up to 10 YEARS!!! But it will outdated before it dies, yes that's true.
To mantain performance and to longer the lifespan of your mobo, keep cleaning your mobo heatsinks, fans, and use good ventilated case.
That's it, based on my experience and opinion