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Item#: N82E16813128405

GIGABYTE GA-P55M-UD2 LGA 1156 Intel P55 Micro ATX Intel Motherboard

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  • Intel P55
  • Core i7 (LGA1156)/i5 (LGA1156)
  • DDR3 2200/1333/1066/800

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

The Gigabyte Ultra Durable 3 series GA-P55M-UD2 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, delivering a dramatically lower system temperature, improved energy efficiency and enhanced stability for overclocking.

The Gigabyte GA-P55M-UD2 motherboard is equipped with the Gigabyte Ultra Durable signature features including Japanese Solid Capacitors boasting an operational life time of more than 50,000 hours, Lower RDS(on) MOSFETs (providing lower resistance to reduce power consumption and heat generation) and Gigabyte DualBIOS technology (providing dual hardware BIOS protection).

The Gigabyte GA-P55M-UD2 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-P55M-UD2 supports Intel's latest LGA 1156 processors including the Intel Core i7 and Core i5 processors.
  • newegg Ultra Durable 3 Technology The Gigabyte GA-P55M-UD2 features revolutionary Ultra Durable 3 technology with a 2oz copper PCB design to help reduce system temperature and dramatically enhance performance.
  • 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 Gigabit Ethernet Connectivity The Gigabyte GA-P55-UD3L features a fast Gigabit network interface for high-speed LAN connections at up to 1000Mb/s data transfer rates with advanced security features to ward off malicious attacks. Gigabit LAN is ideal for supercharged seamless streaming of Internet audio and video content.
  • 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-P55M-UD2

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details

Customer Reviews of the GIGABYTE GA-P55M-UD2

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  • Douglas C.
  • 3/1/2013 3:04:02 AM
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsUSB ports fail with 16GB memory sticks

Pros: Easy to install, looked like a solid board, tolerated a little overclocking (but that wasn't my goal).

Cons: It almost never handles 16GB thumb drives. Sometimes the data shows up, most of the time either the USB driver fails to install (Windows 7) and Device Manager shows a yellow bang, or the tray notification says the device is ready to use, but explorer says it has no data and there's no free space.

I've updated the board with the latest drivers from Gigabyte and the USB sticks work fine on other computers. I can only conclude either the USB hardware is faulty or the drivers/BIOS running it is.

Other Thoughts: Overall, the board has been a little flaky over the years (bought it in Nov/Dec 2009). I found out quickly it was best not to overclock the CPU (that might not be the fault of the board). The sound acted up until Gigabytes last set of drivers, so now its okay. The USB stick problem is just really irritating. These things should just work. Now that the board is no longer made, I don't think this issue will ever get fixed.

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

  • ernest m.
  • 1/25/2013 9:16:27 AM
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsOxidation

Pros: none

Cons: Motherboard will have Oxidation over a period of time due to high heat and cheap metals And Gigibyte wont honor warrenty

0 out of 3 people found this review helpful. Did you? Yes No

  • Terry S.
  • 1/13/2013 7:20:39 PM
  • Ownership: more than 1 year

3 out of 5 eggsBoard Has Never been right

Pros: Small from factor and easy to navigate bios.

Cons: My board has never been totally right. I get voltage errors with the smallest of overclocks using the Gigabyte utility, and now my sata drives are not all recognized until 3 or 4 attempts to boot. I suspect there is voltage regulator going bad.

I replaced the power supply, sata cables and tried different drives to eliminate them as problems.

Other Thoughts: Probably the last Gigabyte board I will buy as I am having much better luck with ASUS.

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  • Pramod R.
  • 3/5/2011 3:07:00 PM
  • Ownership: more than 1 year

4 out of 5 eggsGood MB once it works

Pros: Works well, lots of BIOS features, adequate ports and slots. I own (3) Gigabyte MBs and they are all working well, finally.

Cons: These MBs are very picky!! They need to have all correct drivers, latest from their web-site. The drives on their CD likely will BSOD.

Other Thoughts: All the boards have quirks, I suppose I will stick with this brand for now.

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  • Mayo I.
  • 11/14/2010 9:25:46 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsOne day I'll keep a Gigabyte

Pros: Price / Feature set is excellent. In general the board is great... and unfortunately with the con I just couldn't consider keeping it. This con is more of a decision point then a flaw though so I rather not drop an egg.

I like Gigabyte for their feature sets and I hope one day I'll be able to keep one...

I upgraded 3 components from:
Q6600 (@3.0 Ghz)
Intel D975XBX2 w/ 8GB PC2 800 (2GBx4)

Core i5 760 (@3.5 Turbo 4.0~)
This MOBO w/ Mushkin Silverline 8GB (4GBx2) PC3 10666

Cons: I had issues with compatibility with my video card (a ASUS EAH4770). I basically always got Event ID 4101, a Stop 0x0000116 BSOD, or a crawling black screen (99% GPU and refresh of desktop is crawl speed) on certain types of activities (videos, flash, mostly 2D accelerations). I checked the other items I had added to this build ( w/ Prime95 and memtest+). I reinstalled from scratch and used the latest chipset and vga drivers available, but I concluded that there just seems to something strange about the PCIe 16x Slot on this board or that the EAH4770 and it could just not be friends!

The only case where the errors did not occur was when the EAH4770 was in the 4x slot. I had previously used the EAH4770 for over a year in my previous setup and also retested it on another system, recreated the same activities mentioned above and found no issues at all.

I decided against just buying a new video card to test the PCIe 16x slot and will be returning this MB instead.

Other Thoughts: I had previous compatibility issues with my ASUS EAH4770 and the Gigabyte EP45 series boards as well so I had a feeling it could happen again... (Users of the EAH4770+EP45 found the BIOS would not allow them to overclock at all) The video card seems to be a rare conflictor of sorts.

The last element to test with this MB was the 16x slot, but the route would end up as so:
1. It works with a new video card (I spend 130-160~ on a new card).
2. It does not work, I receive a refund for 80~ or so (restocking fee+) and spend 150~ or so on a new MB.
As such I choose (2) since I had a little more cash-on-hand (1 1/2 weeks) after I initially purchased this MB. I decided to pursue one that has a little more glitter. (^o^)

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  • David B.
  • 11/1/2010 7:13:53 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat board!

Pros: I have had no problems with this board thus far. I was using an ASUS MB prior, so the change in the bios menu was a little frustrating to relearn..

Enjoy the fact that the board is well labeled. Blue board with nice, easy to read, white text next to all the slots. Gives it a very clean look, and helps with installation.

Windows 7 64 bit, 8gig ram, i5 quad core, and a WD caviar black, and this runs like an olympian on steroids :D

Just wish I had waited another week to order, as 11/1 Black November special today is 10% off motherboards =p

Cons: Make sure your case has enough mounting brackets. My last board had more expansion slots, and was therefore about 2 inches longer. Two of the board mountings in the case are permanent, so I couldn't move them to fully secure the MB. However, I had a few that could be moved, so I did the best I could - - I figured 6 of 8 is enough, just as long as I am careful not to push too hard plugging certain things in.

Also, the sideways SATA ports were more inconvenient than I thought. Fortunately my case is large, fairly deep and as an easily removable HD mounting bracket. I had to remove that to get to the SATA ports, but fortunately those ports set behind (when the case is on its side) the HS and mounting bracket, so they aren't blocked. Make sure to look at the case and your mountings closely before you purchase.

Although, with the minor inconveniences with the board, they fortunately weren't enough for me to take an egg off...

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

  • Anonymous
  • 10/24/2010 11:56:39 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggs

Pros: Everything runs well and solid except for the on board sound.

Cons: This is the second system i built this year with this MB. both systems have serious sound problems with the on board sound. Gygabytes website acknowledges it and has a new bios to flash to correct the problem. didn't work on either system. sound is delayed, crackley, and pops. it awful. I won't build another system with a Gigabyte MB.

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  • Shawn M.
  • 10/13/2010 7:18:18 PM
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsMy Only Regret

Pros: Very customizable, lots of ports. Decent price.

Cons: The board did a very poor job of recognizing the type and speed of memory and configuring the correct settings. I could not rely on the "safe" or automatic configuration as I have been able to with other mother boards.

Gigabyte tech support was not effective at resolving problems.

I lost too much time due troubleshooting and removal and re-installation of the M/B. If it fails again, I'll just buy another M/B from a vendor I consider reliable.

Other Thoughts: The system crashed with BSOD after a few days. Memtest 386 showed memory errors. Replaced the memory. BSODs appeared several days later. Tweaked memory configuration when I encountered intermittent crashes. Contacted gigabyte and 2-3 days of email provided absolutely no advice and instructions to get an RMA. Returned it. Gigabyte kept it a week and half and said they could find no problem but they upgraded the Bios which should fix it. Their web site shows the bios upgrade was for a completely different problem. I Insisted that Gigabyte replace the board since problems were intermittent. They consented. Waited two weeks for testing and repair of a board that retails for $100.

Tech support never signed a name to any of the dozen emails exchanged. Calling the tech support phone number lead to an individuals voice mail which was either a mistake or very unprofessional.

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  • Paul W.
  • 10/6/2010 10:27:55 AM
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsGood Intel board

Pros: this is a nice micro-ATX Intel motherboard. I got it to build a Hacintosh, my first build for Hacintosh. It's important to remember like others have said that the SATA are many but are pointed out the side of the board. This was a problem until I geared out I could just remove the other side panel of my box which then gave me very easy access to these ports. That being said this is a micro board and it took a little bit of doing to fit a bigger ATI 5750 video card, two hard drives (one IDE and one SATA)and a DVD writer drive all the same unit. The best way to deal with this is just make sure and not try to skimp on your box size.

Cons: really none when you're fully aware of what you're getting into.

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  • Anthony N.
  • 10/3/2010 7:01:07 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggsGood Features, Good Price, but not for the faint of heart.

Pros: Very feature rich board for the price point. Solid Caps, nice copper heatsink on the northbridge.

Cons: I have had nothing but troubles with this board's automatic RAM settings. I've tried three different sets of ram from two different companies (Mushkin & Corsair) and none of the ram, even the ones on the guaranteed compatibility list I've tried were "plug and play" so to speak. You have to manually set the timings and voltages, even if the ram has an Intel XMP. I finally have a somewhat stable configuration, but I surely wanted to throw this thing off a cliff a time or two.

Other Thoughts: I do like the board, I just think I'm going to stick with ASUS or MSI in the future. It would have been worth the increase in price to either of those brands similar offerings to avoid the RAM nightmare.

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Item#: N82E16813128405
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