Intel DZ77GA-70K Z77 Motherboard: Waiting for Ivy Bridge

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Speed Fan Support

The UEFI BIOS has an excellent range of fan and temperature control settings, so additional software isn't really necessary. That being said, Intel didn't include any software on the board's download page or with our sample to adjust these options on the fly once booted into the operating system.

SpeedFan screen with correlations inputted.

Typically SpeedFan doesn't have a great track record with new motherboard models, but to our surprise, all the official temperature sensors reported in the UEFI are detected by the program. Full control is available for all four fan headers, with two caveats: the fan headers labeled "REAR" and "AUX" are tied together and the "CPU" header cannot adjust the speed of non-PWM fans. To enable fan control, locate the "Winbond W83677HG-I" chip in the advanced menu and set the PWM modes to "Manual."

Boot Time

To test boot time we optimize the BIOS menu by setting the hard drive and other delays set to minimum, taking care not to disable common functionality like USB support, POST messages, etc. and measure the time it takes to reach the Windows loading screen (we stop here because this is the point where the O/S drive speed becomes a factor).

The DZ77GA-70K is the fastest booting LGA1155 board we've tested, getting to the Windows loading screen in just over 10 seconds.

USB 3.0 Performance

Intel took a lot of flak for not incorporating a native USB 3.0 controller in their series 6 chipsets. Having finally succumbed to pressure with series 7, the resulting performance isn't revolutionary. A large file transfer from a USB 3.0-connected WD VelociRaptor 600GB to an internal drive took basically the same amount of time as AMD's native USB 3.0 controller.

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