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::>Motherboards > 2015 > 06 > GIGABYTE GA-990FXA-UD5

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26-06-2015


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Motherboard GIGABYTE GA-990FXA-UD5: review and testing

Motherboard GIGABYTE GA-990FXA-UD5 is designed in ATX format based on the flagship chipset bundle AMD 990FX and AMD SB950. It is positioned as a solution for the building of high-level gaming, overclocking or efficient system. Also here you can find enhanced 8+2 phase power subsystem, powerful cooling system, support for technologies AMD CrossFireX and NVIDIA SLI, as well as good equipping. Let's take a closer look other features of GIGABYTE GA-990FXA-UD5, and its correspondence to the requirements of 2015 year.

GIGABYTE GA-990FXA-UD5

The specs:

Producer  

GIGABYTE

Model

GA-990FXA-UD5 (rev 3.0)

Chipset of north and south bridges

AMD 990FX + AMD SB950

Processor socket

AMD Socket AM3+

Supported CPUs

AMD Phenom II / AMD Athlon II / AMD Sempron / AMD FX

Memory frequency

2000* / 1866 / 1600 / 1333 / 1066 MHz

(*OC)

Memory support

4 x DDR3 DIMM-slots with memory support up to 32 GB

Expansion slots

3 x PCI Express 2.0 x16 (x16 / x16+x16 / х16+х8+х8)

2 x PCI Express 2.0 x16 (x4)

1 x PCI Express 2.0 x1

1 х PCI

Disk subsystem

AMD SB950 supports:

6 x SATA 6 Gb/s

RAID 0, RAID 1, RAID 5, RAID 10, JBOD

2 х Marvell 88SE9172 supports:

2 x SATA 6 Gb/s

2 x eSATA 6 Gb/s

RAID 0, RAID 1

LAN

1 x Realtek 8111F (10/100/1000 Мb/s)

Sound subsystem

Codec Realtek ALC889

8-channel sound

S/PDIF Out

Power

24-pin power socket ATX

8-pin power socket ATX12V

Fans

1 x CPU fan connector (4-pin)

3 x system fan connectors (1 x 4-pin and 2 х 3-pin)

Cooling

Aluminum radiator of processor power subsystem elements connected by heat pipe with north bridge radiator

Aluminum radiator of south bridge

Extenral I/O

1 x LAN (RJ45)

8 x USB 2.0

2 x USB 3.0

2 х eSATA

1 x IEEE 1394a

6 x audio jacks

1 х S/PDIF Out

1 х PS/2 Combo

Internal I/O

1 x USB 3.0 with support of two USB 3.0 (19-pin)

3 x USB 2.0, each with support of two USB 2.0

8 x SATA 6 Gb/s

1 x COM

1 x TPM

1 x IEEE 1394a

1 x S/PDIF Out

1 x connector of audio output to front panel

1 x set of front panel connectors

1 x CMOS

BIOS

2 х 32 Mb Flash ROM UEFI AMI BIOS

ACPI 2.0a, SM BIOS 2.6, PnP 1.0а, DMI 2.0

Packaging

user manual

warranty card

disk with drives and documents

4 x SATA cables

1 х bridge 2-Way NVIDIA SLI

1 х bridge 3-Way NVIDIA SLI

1 х interface panel plug

Form-factor, dimensions

ATX

305 х 244 mm

Producer website

GIGABYTE
Updated versions of BIOS and drives are available at support page

Package and content

GIGABYTE GA-990FXA-UD5

Motherboard GIGABYTE GA-990FXA-UD5 comes in the traditional cardboard box decorated with dark colors. When you look at the packaging you can notice the name of model and manufacturer, as well as the logo of branded concept Ultra Durable 4, which includes the following features:

  • improved protection from moisture;
  • protection against electrostatic discharges;
  • surge protection;
  • protection against overheating of key elements of the power subsystem;
  • using of twice the amount of copper in some PCB tracks.

GIGABYTE GA-990FXA-UD5

On the back side of the box you can find a schematic diagram of the motherboard as well as a detailed description of the concept Ultra Durable 4. The bottom side contains information about the application of extremely reliable solid-state capacitors, and high-performance chips Driver MOSFET, ports USB 3.0 and SATA 3.0. Also here is the support for technologies GIGABYTE ON/OFF Charge, AMD CrossFireX and NVIDIA SLI.

GIGABYTE GA-990FXA-UD5

Scope of delivery of device includes interface board plug, four SATA cables, software CD and user's guide as well as a nice bonus in the form of bridges 2-Way NVIDIA SLI and 3-Way NVIDIA SLI.

Design and features

GIGABYTE GA-990FXA-UD5

GIGABYTE GA-990FXA-UD5 is made in the format ATX (305 x 244 mm) on the black PCB. The dark tone of the printed circuit board is combined with steel colored radiators, so the model looks very elegant and discreet.

GIGABYTE GA-990FXA-UD5

The layout of on-board components is made at a very high level, so you won’t have significant inconveniences during building the system.

GIGABYTE GA-990FXA-UD5

Also note the manufacturer's care to put the video accelerator installed not to interfere with the connection and disconnection of memory modules, despite the fact that the DIMM-slots are equipped with latches on both sides. The same can be said about the disk subsystem: even the longest expansion cards will not block access to ports SATA 6 Gb/s, as the connectors are installed parallel to the PCB.

GIGABYTE GA-990FXA-UD5

On the reverse side of the PCB, in addition to the standard support plate of processor socket, you can notice three radiators of the cooling system secured with screws.

GIGABYTE GA-990FXA-UD5

At the bottom of the board there are the following connectors: module for connection of front panel audio sockets, S/PDIF out, sockets COM, TPM, IEEE 1394а and CMOS, as well as front panel connection module fans. Also here are three modules for connection of additional interfaces USB 2.0 and one USB 3.0. Total number of USB 2.0 due to the south bridge AMD SB950 is fourteen: six are internal and eight are on interface panel. As for USB 3.0, they are four: two external and two internal. All of them are realized by two controllers EtronTech EJ168a.   

GIGABYTE GA-990FXA-UD5

The realization of disk subsystem is provided by eight ports SATA 6 Gb/s. Six of them are realized by south bridge AMD SB950 and two operate due to controller Marvell 88SE9172. Another chip Marvell 88SE9172 is responsible for two eSATA ports on the interface panel.

GIGABYTE GA-990FXA-UD5

The tested model is equipped by four DIMM-slots for memory modules of DDR3 standard that are equipped with latches from both sides. The RAM can operate in dual channel mode. Modules operating at frequencies from 1333 MHz to 1866 MHz in the nominal mode and up to 2000 MHz in overclocked mode are supported. The maximum amount of memory can be up to 32 GB, which is enough for almost any task.

GIGABYTE GA-990FXA-UD5

GIGABYTE GA-990FXA-UD5

Cooling system of the product includes three aluminum radiators: the first covers the north Bridge AMD 990FX. It is connected with radiator via a heat pipe, responsible for the cooling of the power elements of processor subsystem. The third radiator cools south bridge AMD SB950. In the process of testing the following temperature indices were fixed:

  • radiator for south bridge AMD SB950 cooling – 40.5°C;
  • radiator for north bridge AMD 990FX cooling – 55.3°C;
  • radiator for cooling of processor power elements – 59.1°C.

The results confirm the effectiveness of preset cooling system.

GIGABYTE GA-990FXA-UD5

GIGABYTE GA-990FXA-UD5

Processor power supply is performed via 8+2-phase scheme for computational cores and additional joints. The transformer is based on PWM controller ISL6330. The circuitry is made by high quality components such as: solid capacitors, chips Driver MOSFET and  chokes with ferrite cores. Basic 24-pin and additional 8-pin connectors are use for power feeding.  

GIGABYTE GA-990FXA-UD5

To extend the functionality of the product user has seven slots:

  1. PCI Express 2.0 x1;
  2. PCI Express 2.0 x16 (mode х16);
  3. PCI Express 2.0 x16 (mode х4);
  4. PCI Express 2.0 x16 (mode х16 or x8);
  5. PCI Express 2.0 x16 (mode х4);
  6. PCI Express 2.0 x16 (mode х8);
  7. PCI.

Thanks to three slots PCI Express 2.0 x16, and support for technologies 3-Way NVIDIA SLI and AMD CrossFireX, the user has the possibility to organize a powerful graphics subsystem of the three video cards. Depending on the number of graphics cards, the line will be distributed according one of the following schemes: x16, x16, or x16 + x16 + x8 + x8.

GIGABYTE GA-990FXA-UD5

Multi I/O capabilities are based on chip ITE IT8728F which controls the operation of the system fans, COM and PS/2 ports, as well as provides monitoring.

GIGABYTE GA-990FXA-UD5

To support network connections there is a GB LAN-controller Realtek 8111F.

GIGABYTE GA-990FXA-UD5

Sound subsystem of model is based on the 8-channel codec Realtek ALC889 which supports formats up to 7.1.

GIGABYTE GA-990FXA-UD5

Four USB 3.0 ports are implemented using two chips EtronTech EJ168a.

GIGABYTE GA-990FXA-UD5

VIA VT6308P controller is responsible for the two ports IEEE 1394a.

GIGABYTE GA-990FXA-UD5

Two eSATA ports on the interface panel and two additional SATA 6 Gb/s are implemented by the pair of controllers Marvell 88SE9172.

GIGABYTE GA-990FXA-UD5

Interface panel of the model contains the following ports:

  • 1 x PS/2 Combo;
  • 1 x LAN (RJ45);
  • 8 x USB 2.0;
  • 2 x USB 3.0;
  • 2 х eSATA 6 Gb/s;
  • 1 x IEEE 1394a;
  • 1 х S/PDIF Out;
  • 6 x audio jacks.

Note very successful configuration of interface panel, which includes a large number of ports USB, as well as connectors eSATA and IEEE 1394a. Also note convenient connection of multi-channel speakers and and the opportunity to put COM port to the back panel using the appropriate pads on the PCB.

GIGABYTE GA-990FXA-UD5

The motherboard is equipped with four sockets for connection of fans: one is used to supply the CPU cooling system, while other three are applied for connection of system fans.


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