![]() The Classic version of the Ultra Durable 4 technology lacks double-thickness copper interconnects. Featuring Gigabyte’s Ultra Durable 4 Classic technology, the mainboard has protection against high temperature, voltage surges, electrostatic discharges and high humidity. Some of the hot components of that system are covered with an additional heatsink which is secured with screws. The mainboard has a digital power system, called 3D Power, which lets you flexibly and accurately control voltage on the CPU as well as on the CPU-integrated graphics core. We’ll tell you all about this and other features in our review, but first let’s take a look at the product’s packaging and accessories. Even if we disregard the fact that Gigabyte, and most other mainboard makers, does not offer any products with the rather useless Z75 Express, the GA-Z77-D3H has one important feature that wouldn’t be possible with it. ![]() It may seem that the simpler Intel Z75 Express chipset might be used just as well for that functionality, but that’s not so. But on the other hand, like the ASUS P8Z77-V LX, it doesn’t implement the chipset’s ability to share CPU-integrated PCIe lanes between two graphics slots. On one hand, like the mentioned ASUS P8Z77-V LK, it is equipped with an additional controller to implement two back-panel USB 3.0 ports and relies on the capabilities of the Intel Z77 Express chipset otherwise. ![]() This model has no exact counterpart among ASUS products. Anyway, we’re going to tell you about one of them today. It’s easy to rank several models from the same series if their names begin with “UP4”, “UP5” and “UP7”, but it’s hard to quickly grasp the difference between two mainboards whose names end in “HD3” and “D3H” (but there is a difference in functionality, and it’s quite substantial). It is only natural that the next one should be from Gigabyte, but what model exactly? We’ve always been fond of the seemingly simple and comprehensible nomenclature of Gigabyte’s mainboards, yet there may occasionally be some difficulties. Having decided to add a few entry-level models to the long list of Z77-based products we had tested, we started out by reviewing the ASUS P8Z77-V LK mainboard. ![]()
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