Gigabyte GA-A75-UD4H motherboard has a pair of PCI Express 2.0 x16 slots that operate at
x16 and x8 modes, respectively. Three PCI Express x1 and two PCI slots complete the list of
Along the bottom edge of the board we find headers for
the following ports: front panel audio, Firewire, (3) USB 2.0, (2) USB 3.0 and
the front panel connectors. The GA-A75-UD4H has three fan headers, two of
which are 4-pin PWM.
USB 3.0 comes via a pair of Etron EJ168 controllers. While USB
2.0's 480Mb/s maximum bandwidth was enough for many years,
USB 3.0 expands the bandwidth to a whopping 4.8Gb/s (4800Mb/s) which is more
appropriate for today's large mass storage devices, so it's nice that this board
has (8) USB 3.0 ports. Gigabyte also boosted the electrical
capabilities of the F_USB1 USB 2.0 header (above, white with red
text inside) to support charging requirements of peripherals like the Apple iPad/iPhone while the rest
of the computer is off. This board supports USB 2.0 power demands up
to 1500mA via 'On/Off Charge'.
Six native 6Gb/s SATA III ports (RAID 0,1,10,JBOD) are supplied via the AMD
A75 chipset. Five SATA jacks are present on the board and one is located at
the rear I/O for eSATA devices.
The AMD A75 chipset is cooled
by a small passive aluminum heatsink, this chipset communicates with the AMD A8
Fusion APU over a Unified Media Interface (UMI) interface at 2GB/s.
motherboard has four 1.5v DIMMs which supports up to 32GB of
DDR3-1066/1333/1600/1866 memory in a dual channel configuration. If used, the
AMD Radeon HD 6550D IGP will allocate up to 512MB from system memory to
passive heatsink cooling the boards' VRM circuitry and power MOSFETs. Only solid
state capacitors are used to manufacturer motherboards these days. This Gigabyte motherboard uses Ultra Durable 3 components. With the
upcoming AMD A85 chipset Gigabyte has upgraded this technology collection to Ultra Durable
5. The changes are pretty interesting, if you want to read about
PCSTATS has a short article here
from Computex 2012.