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BIOS Setup

The BIOS of Gigabyte mainboards seems to get more of the ancient feel. The company continues avoiding the graphics UEFI interface and prefers Hybrid EFI that allows retaining traditional archaic text interface and at the same time implementing contemporary functions such as support of HDDs with over 3 TB storage capacity.

Gigabyte GA-A75-UD4H is even more behind in this respect. Its BIOS interface takes us back to the far away past, because it is not just text interface, but it doesn’t even have the convenient hierarchal structure of the contemporary Gigabyte mainboards for Intel processors that we are so used to. However, most of the major settings have been moved to the first section called MB Intelligent Tweaker.

Here we have all options for adjustment of processor and memory multipliers, base clock generator frequency and voltages. Here you can also configure memory timings and processor graphics core parameters, which have been placed into individual sub-sections.

Memory parameters could be really fine-tuned, although automatic configuring is only available for all settings at the same time.

For the graphics core you can set the frame-buffer size and frequency. This is an obvious error in the BIOS. The graphics core frequency in Llano processors cannot be increased independently that is why this option doesn’t work and simply confuses inexperienced users by being here.

There are no options here for setting up processor power-saving technologies. All of them have been moved to other upper-level sub-section called Advanced BIOS Features.

Overall, Gigabyte GA-A75-UD4H has everything necessary for successful Llano overclocking, although these options are not very convenient to work with. The table below shows supported voltages and their adjustment ranges:

There is only one disapointment: the lack of CPU loadline calibration option.

The base clock generator frequency may be changed with 1 MHz increments, and DDR3 SDRAM frequency may be set using one of the four multipliers: x5.33, x6.66, x8.0 and x9.33.

For your convenience, the mainboard allows saving up to eight settings profiles, and there are an integrated utilities for BIOS updating and viewing the system CPU info.

System monitoring is limited to four voltages, two temperatures and rotation speeds of four system fans. It is not a very detailed report, but all the critical system units are under control.

The rotation speed of the processor and one of the system fans can be adjusted depending on the temperature. However, the BIOS offers only one standard configuration for this dependence. There are no detailed algorithms for fan rotation speed adjustment.

In other words, the same thing we have just concluded about the Gigabyte GA-A75-UD4H layout is also true about the BIOS. We have no serious problems with it and it is quite suitable for CPU overclocking. But it doesn’t look like a BIOS developed in 2011. Moreover, the TouchBIOS utility, which should limit your use of the inconvenient interface to the minimum also doesn’t work on Gigabyte GA-A75-UD4H.

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