Introduction
Let’s take a look at the Gigabyte 990FXA-UD3, a mid-range socket AM3+ motherboard for AMD FX processors, based on the 990FX chipset. Let’s see what this motherboard has to offer.
The AMD 990FX chipset is basically an AMD 890FX chipset with a new name and supports the higher HyperTransport 3.0 speeds (up to 10.4 GB/s a.k.a. 5.2 GT/s) that weren’t used before and are supported by the FX processors from AMD.
So far, Gigabyte has launched four different motherboard models based on the AMD 990FX chipset; we list the differences between them in the table below. Prices were researched at Newegg.com on the day we published this article.
|
Specification |
990FXA-D3 |
990FXA-UD3 |
990FXA-UD5 |
990FXA-UD7 |
|
Form Factor |
ATX |
ATX |
ATX |
E-ATX |
|
Memory Sockets |
4 |
4 |
4 |
4 |
|
PCI Express x16 2.0 |
4 (x16/x16/x4/x4) |
4 (x16/x16/x4/x4) |
5 (x16/x16/x0/x4/x4 or x16/x8/x8/x4/x4) |
6 (x16/x16/x0/x0/x4/x4 or x16/x8/x0/x8/x4/x4 or x8/x8/x8/x8/x4/x4) |
|
PCI Express x1 2.0 |
2 |
2 |
1 |
0 |
|
Standard PCI |
1 |
1 |
1 |
1 |
|
CrossFireX |
Yes |
Yes |
Yes |
Yes |
|
SLI |
Yes |
Yes |
Yes |
Yes |
|
SATA-300 |
0 |
0 |
0 |
0 |
|
SATA-600 |
6 |
6 |
8 |
8 |
|
eSATA-300 |
0 |
0 |
0 |
0 |
|
eSATA-600 |
0 |
2 |
2 |
2 |
|
USB 2.0 |
14 |
14 |
14 |
14 |
|
USB 3.0 |
2 |
4 |
4 |
4 |
|
FireWire |
0 |
2 |
2 |
2 |
|
Gigabit Ethernet |
1 |
1 |
1 |
1 |
|
Audio |
ALC889 |
ALC889 |
ALC889 |
ALC889 |
|
Voltage Regulator |
4+1 |
8+2 |
8+2 |
8+2 |
|
Price |
NA |
USD 138 |
USD 170 |
NA |
You can see the Gigabyte 990FXA-UD3 motherboard in Figure 1.
Figure 1: Gigabyte 990FXA-UD3 motherboard
- Contents
- 1. Introduction
- 2. Slots
- 3. Memory Support
- 4. On Board Peripherals
- 5. Other Features
- 6. Voltage Regulator
- 7. Overclocking Options
- 8. Main Specifications
- 9. Conclusions







