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Intel Motherboards > 
Item#: N82E16813128425

GIGABYTE GA-P55-USB3 LGA 1156 Intel P55 USB 3.0 ATX Intel Motherboard

  • Intel P55
  • Core i7 (LGA1156)/i5 (LGA1156)
  • DDR3 2200/1333/1066/800
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The Gigabyte Ultra Durable 3 series GA-P55-USB3 motherboard once again leads the motherboard industry for the highest quality and most innovative motherboard design. Featuring the industry’s first consumer desktop motherboard design to introduce 2 ounces of copper for both the Power and Ground layers, this board delivers a dramatically lower system temperature, improved energy efficiency and enhanced stability for overclocking.

With the world’s first USB 3.0 logo certified host controller uPD720200 from NEC Electronics, the GA-P55A-UD3 allows users to take advantage of super fast USB transfer rates of up to 5Gbps, delivering 10x faster data transfer compared to USB 2.0.

The Gigabyte GA-P55-USB3 motherboard promises to provide the stability, reliability and longevity essential to meet the power needs of high-end processors and other components running today's most demanding applications and games.

  • newegg Intel P55 Express Chipset for Intel LGA 1156 CPU Based on the Intel P55 Express chipset, the Gigabyte GA-P55-USB3 supports Intel's latest LGA 1156 processors including the Intel Core i7 and Core i5 processors.
  • newegg Ultra Durable 3 Technology The Gigabyte GA-P55-USB3 features revolutionary Ultra Durable 3 technology with a 2oz copper PCB design to help reduce system temperature and dramatically enhance performance.
  • newegg SuperSpeed USB 3.0 Technology The Gigabyte GA-P55-USB3 equips the revolutionary SuperSpeed USB 3.0 technology to deliver up to 5Gbps bandwidth which is 10x faster than USB 2.0 boosts data transfer rate between PC and USB device.
  • newegg ATi CrossFireX Multi-GPU Technology Support ATi CrossFireX is the ultimate multi-GPU performance gaming platform, enabling two or more discrete graphics processors to work together for boosted system performance and a breakthrough gaming experience.
  • newegg DDR3 2200 Support Four 240-pin DIMM sockets support up to 16GB of non-ECC DDR3 memory at speeds of up to 2200MHz, ensuring ample capacity for any application.
  • newegg Gigabyte DualBIOS Gigabyte DualBIOS technology protects the BIOS from virus attacks. With its innovative backup BIOS design, this platform provides twice the security thus assuring the PC’s stability.

Learn more about the GIGABYTE GA-P55-USB3



Supported CPU

CPU Socket Type
LGA 1156
CPU Type
Core i7 (LGA1156)/i5 (LGA1156)


Intel P55


Number of Memory Slots
Memory Standard
DDR3 2200/1333/1066/800
Maximum Memory Supported
Channel Supported
Dual Channel

Expansion Slots

PCI Express 2.0 x16
1 x PCI Express x16 slot, running at x16 (PCIEX16)
PCI Express x16
1 x PCI Express x16 slot, running at x4 (PCIEX4_X1)*
* When the PCIEX1_2 slot is populated with an expansion card, the PCIEX4_X1 slot will operate at up to x1 mode.
PCI Express x1
PCI Slots

Storage Devices

1 x ATA133 2 Dev. Max
SATA 3Gb/s
P55 Chipset: support for RAID 0/1/5/10
GIGABYTE SATA2 chip: support for RAID 0/1/JBOD

Onboard Video

Onboard Video Chipset

Onboard Audio

Audio Chipset
Realtek ALC888
Audio Channels
8 Channels

Onboard LAN

LAN Chipset
Realtek 8111D
Max LAN Speed

Rear Panel Ports

USB 3.0
2 x USB 3.0
USB 1.1/2.0
8 x USB 2.0
1 x Optical, 1 x Coaxial
Audio Ports
6 Ports

Internal I/O Connectors

Onboard USB
4 x USB 2.0

Physical Spec

Form Factor
12.0" x 9.6"
Power Pin
24 Pin


On/Off Charge Technology

Benefits of 2 oz Copper PCB

Smart 6- A Smarter way for PC system Management

Dynamic Energy Saver 2

Cloud OC

Hotkey OC

XHD (eXtreme HardDrive)-Accelerating hard drive performance with ease

AutoGreen- Greening your PC via Bluetooth cellphone

Multi-display support with ATI CrossFireX

Manufacturer Warranty

3 years limited
3 years limited

Quick Info


  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years

Customer Reviews of the GIGABYTE GA-P55-USB3

Do you own this product? Write a Review

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  • Maksim R.
  • 5/4/2013 1:44:50 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsAwesome

Pros: - Gigabyte always delivers
- Running 4 plus years, no hiccups on performance or firmware updates
- everything on the board works

Cons: none

Other Thoughts: What else do you want to know? Look in details, the main review is given.

0 out of 1 people found this review helpful. Did you? Yes No

  • Andrew Z.
  • 10/8/2012 10:30:27 PM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsRAID controller messed up

Pros: Still (mostly) working almost 2 years later.

Cons: RAID controller is broken. Had RAID 1, and one day it suddenly stopped working. Tinkered a bit, figured out both drives work on their own, but when both plugged in it sees neither of them.

Did you find this review helpful? Yes No

  • Bill T.
  • 5/2/2012 5:56:38 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsdecent MB

Pros: low price, includes some neato apps for energy saving and hardware management
USB3.0 is still a fair selling point

Cons: Minor issue with headphone functionality on the front panel but this is due to hardware limitations of my case.

Other Thoughts: This board has served me well for two years and I have not had any real issues with it *knock on wood*
Hopefully it'll last me a few more

Did you find this review helpful? Yes No

  • nickolas D.
  • 3/5/2012 4:08:05 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsworked until it just died

Pros: loved the board while it worked. the 3.0 usb was great.

Cons: woke up one morning and it was just dead, no way to try to even fix it. just dead and would not come back. disappointing.

Other Thoughts: I love gigabyte products, so i will continue to buy from them.

Did you find this review helpful? Yes No

  • Mohammad F.
  • 2/19/2012 7:15:04 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsLemon at my hands !

Pros: Worked when it did.

Cons: Takes 10-15 minutes to cold boot Win XP SP3 or Win 7 Ultimate, the lag time progressively getting worse. Had to spend a lot of time and effort to narrow down the problem to the motherboard.

Other Thoughts: Having read a lot of others having similar issues I have requested an RMA from Gigabyte. Will see how it goes. I will post a followup depending upon how Gigabyte handles this lemon.

0 out of 1 people found this review helpful. Did you? Yes No

  • Steven T.
  • 11/26/2011 3:38:23 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsGood value for a single-GPU setup

Pros: When I built my latest computer I tried to blend value with performance. It's high quality which is to be expected from Gigabyte and looks very nice in the case.

It's a great board if you just plan on using a single GPU.

Cons: Even though it's Crossfire ready, it's not a good board for it:

- The second PCI-e slot only runs at x1
- If you install a second card along the size of a 5870 or 6950/6970 you will lose about 4 of your SATA connections due to poor placement.

Did you find this review helpful? Yes No

  • Andrew P.
  • 10/5/2011 1:46:52 PM
  • Tech Level: Somewhat Low
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsConcerned

Pros: worked well for roughly 8 months. looks nice and shiny and I enjoyed it when it worked.

Cons: worked well for 8 months and the crapped out on me, pretty much did an entire diagnostic with a gigabyte tech and basically confirmed it was the Mobo having issues because it would not start up even utilizing the minimum requirements for startup. I really like this motherboard, but based on other reviews, it seems to fail on others as well. Waiting for an RMA to be approved as I type this. Hopefully i can get my comp up and running

Other Thoughts: kinda disappointed that I have to pay for shipping the mobo back to the company, but like I said, still waiting on the RMA to be approved

Did you find this review helpful? Yes No

  • Onur G.
  • 8/24/2011 9:26:41 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year

1 out of 5 eggsRandom BSODs, Memory issues, etc.

Pros: Good price, Usb 3.0, 8 SATA ports, good if it would work right! Well cooled mosfets.

Cons: Inadequate sata port placement (2nd PCI-E card will block almost all blue SATA ports :( )
Bought 2 of these, both have the same parts and both experience random BSODs, Crashes when doing light work on the computer. Verified everything (voltages, timing, temperatures, BIOS updates, memory testing, etc.) and still the same.

Other Thoughts: I build a lot of computers and wanted to give Gigabyte a chance switching from Asus but this issue is really making me mad and I don't think I will be buying another Gigabyte motherboard again. The worst thing is that these two motherboards have been giving these issues since day 1 and I don't think it's possible to get a different model motherboard from Gigabyte but the same one which will still give the same problems !

Did you find this review helpful? Yes No

  • Nicholas R.
  • 8/10/2011 8:33:30 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsDont Know

Pros: none

Cons: It never worked. I recieved it and installed it, but it never worked. I am in the military so i got deployed and have never gotten around to actually writing a review. im sure its a good board but i have not gotten the chance.

Manufacturer Response:

Thank you for your comments. Honest and constructive opinions are always welcome. We apologize for your difficulty with your Gigabyte product. Please contact us at with the case number 2011081504 in the subject line. We will provide personalized service and analysis to help solve your issue as soon as possible.

If the matter is urgent, please send us your contact number, and we will contact you ASAP.

Gigabyte VIP Support Team

0 out of 1 people found this review helpful. Did you? Yes No

  • Jordan M.
  • 8/9/2011 9:41:29 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year

3 out of 5 eggsIt's been an okay board.

Pros: It was a good price. USB 3.0 is very handy. Very well planned out board for my needs (not a big gamer, don't need SLI or crossfire).

Cons: First board I got crapped out in 2 weeks. I was pretty ticked. Newegg replaced the board and this one has been okay except for 1 problem. When I put the computer to sleep, it WILL NOT WAKE UP. I have to turn off my computer, open up the case, remove a stick of memory, turn it on, turn it back off, put the memory back in, turn it on, and then it will turn back on. Looked for a fix for this issue but have found nothing. Also, I'm not sure if it's the board or something else in my system, but this board takes a long time to post (even with optimized BIOS) and start loading Win7 from my hdd. A $1,000 computer shouldn't take 1 minute 20 seconds to boot up.

Other Thoughts: It's been an okay board, it would be better if I could get a fix for these issues.

1 out of 1 people found this review helpful. Did you? Yes No

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Item#: N82E16813128425
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