The Gigabyte P550B is a low performance and noisy power supply, offered at a reasonable price.
Gigabyte P550B Power Supply Review : Read more
Gigabyte P550B Power Supply Review : Read more
Yes this one didn't treat me with fireworksGigabyte GP-P750GM 750 W Review - With an Explosive Attitude | TechPowerUp
Well, at least it did not explode.
Gigabyte should just be banned from making PSUs at this point.