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GIGABYTE GA-870A-UD3 AMD870 ATX AM3 DDR3 1PCI-E 2PCI RAID HD Sound GBLAN SATA3 USB3.0 Motherboard - 52049_l.jpg GIGABYTE GA-870A-UD3 AMD870 ATX AM3 DDR3 1PCI-E 2PCI RAID HD Sound GBLAN SATA3 USB3.0 Motherboard - 52049_1.jpg Customer Photos (0)
Reg. Price: $107.98  CAD
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   Shipping Weight:   3 lbs
   Part #: GA-870A-UD3
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Features    [ Edit | History ]

GIGABYTE Ultra Durable 3 design, featuring 2 ounces of copper for both the Power and Ground layers which dramatically lowers system temperature by delivering a more efficient spreading of heat from critical areas of the motherboard such as the CPU power zone throughout the entire PCB. GIGABYTE's Ultra Durable 3 also lowers the PCB impedance by 50%, which helps to reduce electrical waste and further lowers component temperatures. A 2oz Copper layer design also provides improved signal quality and lower EMI (Electromagnetic Interference), providing better system stability and allowing for greater margins for overclocking.

Quick Specs:
Maximum Memory 16 GB
Form Factor ATX
Processor Supported Phenom II X4 Phenom II X3 Athlon II X4 Athlon II X3 Athlon II X2 Sempron Phenom II X6
RAID Levels 0 1 5 1+0 JBOD
Total Processor Supported 1
Controller Type Floppy Controller Serial ATA/600 Ultra ATA/133 (ATA-7) Serial ATA/300
Processor Socket Socket AM3 PGA-941
Memory Technology DDR3 SDRAM
Processor Technology HyperTransport Technology
Memory Standard DDR3-1333/PC3-10600 DDR3-1066/PC3-8500
Width 12"
Depth 9.1"
64-bit Processing Yes
Chipset Manufacturer AMD
Chipset Model 870
Number of Memory Slots 4
Number of PCI Slots 3
Audio Channels 7.1
Gigabit Ethernet Yes
Number of IDE Interfaces 1
Number of SATA Interfaces 10
Number of PCI Express x1 Slots 2
HyperTransport Speed 2600 MHz
RAID Supported Yes
Number of Total Expansion Slots 7
Number of PCI Express x16 Slots 2
Network (RJ-45) Yes
Total Number of USB Ports 10
Number of USB 3.0 Ports 2
Total Number of FireWire/i.LINK Ports 2
PS/2 Port Yes
Number of PS/2 Ports 1
Total Number of Onboard USB Ports 2
Total Number of Onboard FireWire/i.LINK Ports 1
Onboard S/PDIF Header Yes
Total Number of PCI Express Slots 4

Specifications    [ Edit | History ]
     Audio Channels: 7.1
     Sound Controller Manufacturer: Realtek
     Sound Controller Model: ALC892
General Information  
     Brand Name: Gigabyte
     Manufacturer: GIGABYTE Technology, Inc
     Manufacturer Part Number: GA-870A-UD3
     Manufacturer Website Address:
     Product Line: Ultra Durable 3
     Product Model: GA-870A-UD3
     Product Name: Ultra Durable 3 GA-870A-UD3 Desktop Motherboard
     Product Type: Desktop Motherboard
I/O Controller  
     Controller Type: Floppy Controller
Serial ATA/600
Ultra ATA/133 (ATA-7)
Serial ATA/300
     RAID Levels: 0
     RAID Supported: Yes
I/O Expansions  
     Number of PCI Express x1 Slots: 2
     Number of PCI Express x16 Slots: 2
     Number of PCI Slots: 3
     Number of Total Expansion Slots: 7
     Total Number of PCI Express Slots: 4
     Audio Line In: Yes
     Audio Line Out: Yes
     eSATA: Yes
     Microphone Port: Yes
     Network (RJ-45): Yes
     Number of FireWire/i.LINK 400 Ports: 2
     Number of PS/2 Ports: 1
     Number of S/PDIF Out Ports: 2
     Number of USB 2.0 Ports: 8
     Number of USB 3.0 Ports: 2
     PS/2 Port: Yes
     S/PDIF: Yes
     Total Number of FireWire/i.LINK Ports: 2
     Total Number of USB Ports: 10
     Maximum Memory: 16 GB
     Memory Standard: DDR3-1333/PC3-10600
     Memory Technology: DDR3 SDRAM
     Number of Memory Slots: 4
Network & Communication  
     Gigabit Ethernet: Yes
Onboard Interfaces  
     Number of IDE Interfaces: 1
     Number of SATA Interfaces: 10
     Onboard Audio Header: Yes
     Onboard LEDs Header: Yes
     Onboard S/PDIF Header: Yes
     Total Number of Onboard FireWire/i.LINK Ports: 1
     Total Number of Onboard USB Ports: 2
Physical Characteristics  
     Depth: 9.1" (230 mm)
     Form Factor: ATX
     Width: 12" (305 mm)
Processor & Chipset  
     64-bit Processing: Yes
     Chipset Manufacturer: AMD
     Chipset Model: 870
     HyperTransport Speed: 2600 MHz
     Processor Socket: Socket AM3 PGA-941
     Processor Supported: Phenom II X4
Phenom II X3
Athlon II X4
Athlon II X3
Athlon II X2
Phenom II X6
     Processor Technology: HyperTransport Technology
     Total Processor Supported: 1

Gigabyte GA-870A-UD3 Customer Reviews

Product reviews on are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding Gigabyte GA-870A-UD3 reviews.
Experience: 1 Months
 Verified Owner
So many features!
10 USB ports on the back alone!
AM3+ (Bulldozer) Ready! (v3.1+ boards)
Placement of some headers - not a big deal
No mosfet heatsink (you can buy one for ~$15)
I purchased this board in a bundle with the AMD Phenom II x4 955. I have only positive experiences with this board so far. Everything is so easy to set up and configure. I'm coming from an older ASUS board, switched due to ASUS not providing the customer service they claim. Hopefully Gigabyte is better if I happen to have to RMA.

Experience: 1 Months
 Verified Owner
Good price & brand name, runs my newer games quiet well. Bundle included free copy of MW2.
Right side lack of fastener hard point a bit flimsy when installing components. Little heat sink on Northbridge chipset.
Got this bundled with AMD Phenom II X4 955 black used Mushkin silverline RAM(sku#55546) works well together. Overall quiet happy with bundle, RIFT & Alice: MR run very well on high settings. A good budget gamer build.

Experience: 2 Days
 Verified Owner
Nice price
Firewire, USB3, SATA3
Nothing huge
Bought this board to finally replace an older Gigabyte mobo that proved to be a buggy piece of crap within 2 months. This board works very nicely without having to adjust any BIOS settings or anything and has everything I need- in particular a Firewire port and a good price

No Crossfire as this is an 870 board

Recognized my Phenom II x4 955 out of the box unlike my first board D:

I'm not really into overclocking so can't say much about that

Experience: 2 Days
 Verified Owner
-Great motherboard for the price
-lots of sata connections :)
-Blu-Ray quality Audio
-Doesn't look so hot
-No on board graphics
Other than the fact it has no on board graphics and it isn't exactly eye candy, this board will get it done. It's exactly what you would expect from a performance board for 2011.

Experience: 3 Months
 Verified Owner
usb 3
sata 3
power off charging usb
chipset heatsink is cheap....
very nice motherboard for this price
very stable
memory clock at 1600
with amd processor....

good buy

Experience: 2 Weeks
 Verified Owner
Gigabyte software is average at best.
I bought this for my AMD Phenom II 1050T. Very steady so far and has all the bells I needed.

One thing I don't like is the documentations and software provide by Gigabyte, not the best. Compares to my MSI video card software/document, MSI wins.

Experience: 2 Weeks
 Verified Owner
Inexpensive; USB 3.0; 3-year manufacture warranty
none so far
I'm not really tech savvy so this is a layperson's review. Bought this board for my Athlon II x4. It has all the features I want (USB 3.0, support up to Phenom II x6, eSATA) and none of the features I don't need (on board video, more than one PCIEX16 slots). Comes with a Dolby Digital case sticker that can make your HTPC looks awesome cool if you are into that kind of thing, but if you're building a HTPC you're probably better off getting a board with on-board video.

Experience: 60 Days
 Verified Owner
Stable at default speeds. Reliable parts, eSata and mini usb a asset.
Not very overclockable. Was only able to get 10% increase from 1090T chip, which i've had clocked to 4ghz on my old board.
This was bought as a cheap replacement for my server PC.
I put in a 1090T chip which i had spare and was only able to get 3.8ghz overclock compared to 4.0ghz i had for that chip in it's old board.
The mini usb is handy and i use it all the time.
The USB 3.0 is cool, but i haven't been able to use anything with it yet so i can't comment on that.
I've had no HW related issues other then the lack of overclock ability.

Experience: 2 Months
 Verified Owner
Cheap, good build quality and lots of various ports!
None that I can find!
I really like this board, for this price I got USB 3.0 and SATA 6Gb and lots of ports everywhere. I trust Gigabyte with my life! :)

Experience: 2 Days
 Verified Owner
-Overclocking capabilities
-No Crossfire (chipset 870 limitations)
Using this board (revision 2.1) with a Phenom II x4 965BE. Newest AMD chipset (870), if you're not planning to have multiple video cards, I'm sure it will suits your needs.

Using G.SKILL F3-10666CL7D-4GBRH Ripjaws PC3-10666 4GB 2X2GB DDR3-1333 CL7-7-7-21 memory and have no issues.

I had to download NEC USB 3.0 drivers for Windows 7 X64.

 NCIX Forum Messages

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Messages about GIGABYTE GA-870A-UD3 AMD870 ATX AM3 DDR3 1PCI-E 2PCI RAID HD Sound GBLAN SATA3 USB3.0 Motherboard

Issues with 4 x 4gb DDR3 ram (Ming_M- Jul 26, 11, 7 Replies) Read this message
Which revision as of June 2011? (Norman_B- Jul 14, 11, 2 Replies) Read this message
Wrong picture (there is only 1 GBlan) (Hotshot- Jun 27, 11, 1 Replies) Read this message
MB not charging iPad2? (Ming_M- May 29, 11, 8 Replies) Read this message
Price errrr..... wrong? (Viktor_M- Apr 22, 11, 3 Replies) Read this message
Is this a good board to overclock? (peski- Mar 16, 11, 5 Replies) Read this message
Lack of PSU or Memory? (Christie_F- Mar 12, 11, 7 Replies) Read this message
Motherboard drivers? (Ming_M- Mar 12, 11, 1 Replies) Read this message
Sata 3 ports? (peski- Mar 06, 11, 1 Replies) Read this message
Compatible ram for 870A-UD3 (morg- Nov 11, 10, 2 Replies) Read this message
Will this run ddr3 1600 Memory? (jimminy_kriket- Aug 13, 10, 5 Replies) Read this message
Does this board OC well?(Phenom II 965 BE) (Collin_B- May 28, 10, 0 Replies) Read this message
Trim support for sata3 raid ssd? (Scott_R- May 26, 10, 1 Replies) Read this message

Post a New Message  |    All Messages       Browse NCIX Forums

Forum messages are not reviewed and may not contain accurate information about a product. Message contents are opinions from customers based on their own experience with a product. We do not recommend you make puchasing decisions based on Forum messages.
Reviews from the Web

Below are reviews found on other web sites for this product submitted by customers.

Comment: Gigabyte is targeting demanding consumers who want great performance at a decent price.
Posted by: BernardP @10/26/10
Comment: Overall, we were impressed that GIGABYTE was able to pack so many features into the 870A-UD3 at such a low price and as such it definitely deserves our “DAM GOOD VALUE” award.
Posted by: Lord Babaghan @07/02/10
Submit a review link   |   Latest 30 reviews
Product Warranty
First 30 days limited warranty through The remainder of the 3 year warranty is provided directly by the manufacturer.

Currently Gigabyte accepts end users’ requests on RMA service.
Motherboards, Video cards, servers and Rackmount server boards carry three years limited warranty.

Warranty Effective On Date of Manufacture

Gigabyte determines warranty based on the manufacture date. The manufacture date can be verified by the serial number found on the product. The first four digits after "SN" determine the year and week of manufacturing date. For example:

"01)04719331729028(21) SN0213030585" represents the 13th week of 2002

RMA Request Procedures and Guidelines

  • All RMA request forms must be completed in order to obtain a RMA number

  • RMA request with missing or incorrect serial number(s) may result in a delayed process or a rejection of request

  • Any model discrepancy for received items may result in a delayed processing timeProducts received with no RMA number may delay processing or refusal
    (Gigabyte will not be responsible for items received without proper information)
  • No cross shipping or advanced replacements under any circumstances

  • Products will either be repaired or replaced at our discretion

  • Replacements may include new or refurbished products
    (Replacements will be for the exact or equivalent product)
  • Average turnaround time will be 2-3 business working weeks upon receipt (applies to quantities not exceeding 20 pieces)
  • If the information on your request varies from the actual item(s) received, RMA will be based on the actual item(s) received
  • RMA numbers will be valid for 30 days after issued date
  • Gigabyte will provide one way freight via UPS or FedEx ground free of charge
  • For consecutive violation for No Trouble Found (NTF), a testing fee per NTF board or system may apply.

Warranty Period by Product

  • Motherboards
    • All motherboards carry a 3 year limited warranty (First 2 years parts & labor, 3rd year parts only)
  • Graphic Accelerator Cards (VGA)
    • All graphic cards carry a 3 year limited warranty (First 2 years parts & labor, 3rd year parts only)
  • Servers(Server Boards/Barebone Server System)
    • Server Boards carry a 3 years limited warranty (First 2 years parts & labor, 3rd year labor only)   
    • Rackmount server boards carry a 3 year limited warranty (First 2 years parts and labor, 3rd year labor only)
    • Rackmount components carry a 2 year limited warranty
  • PC Barebones System
    • Motherboards assembled with barebones systems carry a 3 years limited warranty (1st year parts & labor, 2nd and 3rd year labor only)
      * Gigabyte shall provide the fees/charges for parts upon testing of motherboards in their 2nd and 3rd year of warranty
  • Peripherals (Coolers, Keyboards, Mouse, Optical Devices, etc.)
    • All peripherals carry a 1 year limited warranty
  • Notebook
    • All notebooks carry a 1 year limited warranty
  • Wireless and Networking Products
    • All wireless and networking products carry a 1 year limited warranty

Please register at your RMA account!

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All pricing subject to change. For all prices, products and offers, reserves the right to make adjustments due to changing market conditions, product discontinuation, manufacturer price changes, errors in advertisements and other extenuating circumstances. Promotional offers from are subject to availability and are available only while supplies last. No rain checks will be issued on promotional items and offers.

While uses all reasonable efforts to include accurate and up-to-date information on the Site, makes no warranties or representations as to the Site's accuracy. assumes no liability or responsibility for any errors or omissions in the content on the Site. warrants product(s) to be in good working condition and free from defects in material and workmanship for a period of one (1) year for OEM packages, and for thirty (30) days for RETAIL packages, from the original Invoice date unless otherwise restricted below or by the manufacturer's own warranty policy. Defective returns and warranty service will be replaced, exchanged or repaired at's sole discretion, and based on vendor's policy.

NON-DEFECTIVE merchandise returns may be accepted on some items ONLY within 15 days of the Invoice date, at's discretion. All NON-DEFECTIVE returns are subject to a 15% restocking fee. No refunds will be issued for blank media, digital cameras (and accessories), opened software, printers, printer supplies, paper, projectors (and accessories), appliances, handhelds, PDAs, notebook computers, special order computers and special order items.

Defective software, video games or DVDs will be replaced by the SAME title and format ONLY (and subject to current availability) within 30 days of the Invoice date. Software, video games and DVDs may be returned within 30 days only if the item is UNOPENED (with shrink wrap still intact) at the sole discretion of does NOT apply a surcharge to credit card orders. Please read our RMA & warranty policy and terms & conditions for more information. If you have any questions regarding our sales and warranty policies, please send us a message -- we'll be glad to answer any of your questions.

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