First up is Gigabyte’s GA-P55M-UD2. You can purchase this board for around $105~$110.

Gigabyte GA-P55M-UD2 Feature Set



Gigabyte includes the standard array of components like the Realtek ALC888B HD audio codec, Realtek RTL8111D Gigabit LAN controller, T.I. TSB43AB23 IEEE 1394a chipset, GSATA2 (JMB363) chipset, and full support for the Core i7/i5 S1156 processor series.

Gigabyte also includes a rather sparse accessories bundle. You get the standard rear I/O panel cover along with 1 x IDE cable, 2 x SATA cables, a well-written and informative manual, and software CD. We understand the need to cut costs where possible to meet a $100 price target, but including at least one USB 2.0 and IEEE 1394a bracket for the headers would have been appreciated.

BIOS

Gigabyte also includes one of the most extensive BIOS designs in an entry level micro-ATX motherboard that we have seen recently. The BIOS is setup for overclocking and includes all the basic settings: CPU multiplier, PCI-E bus, Bclk frequency, memory multipliers, and nearly every voltage setting you will need. Gigabyte includes Load Load-Line Calibration (LLC) and PCH Core (P55) voltage settings for additional overclocking duties. LLC will help to eliminate line droop on the VCore line. We still recommend having LLC disabled in most situations, but if you have to reach a certain overclock for benchmarking, then you should probably enable it. Generally, we do not need PCH voltages in our experience but it is nice to have the feature.

Two strengths of the BIOS are the granular voltage settings and memory timing options for an entry level board. Gigabyte allows you to tweak CPU clock skews, channel independent DRAM settings, and CPU/PCI clock drives although we found the auto settings to be just about perfect.

One last feature we would like to mention is the Q-Flash utility that is accessed via the F8 key. Q-Flash can read files directly from a USB flash drive making BIOS updating a simple and safe procedure. We tried this feature 30 times as part of our testing routine and it never failed.

We did have a couple of slight disappointments with the BIOS. In the voltage setting options, Gigabyte does not provide the base voltages that the board defaults to at startup. Our other complaint has to do with the PC Health section, as the lack of SmartFan adjustments for the lone chassis header is not available. The CPU SmartFan adjustment for the CPU is limited to Auto/Voltage/PWM without the ability to determine temperature ranges. Oh how do we miss abit’s uGuru technology. Other than that, we were impressed with the BIOS considering the entry level nature of the board.

BIOS Information

Let’s take a brief look at the BIOS. We discussed the features earlier, but a visual representation sometimes speaks louder than words.



System Status Summary Screen - Those numbers are real for a $105 motherboard. Of course we had to use the i7/870 to do it.


Same Advanced Frequency options as the more expensive Gigabyte P55 motherboards.






More than enough memory options for most of us...


All the voltages you will need to hit 4.3GHz on air and it takes about ten seconds to do it.
P55 Refresher Gigabyte GA-P55M-UD2 Layout
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  • yehuda - Monday, October 5, 2009 - link

    Slow POST is a minor annoyance, but it adds up as part of the computing experience IMO. I don't get why Gigabyte is so slow compared to other brands like MSI and ASRock. Just getting the video signal online takes about 4 seconds here (commenting on G31 and G41-based boards). It feels like a 486 until the OS takes over.
  • yacoub - Monday, October 5, 2009 - link

    Much more interested in the MSI uATX board and the higher-level Gigabyte one that actually has all the features on it. These two may be entry-level but they also skip some features most discerning enthusiasts would want.
  • Gary Key - Monday, October 5, 2009 - link

    The MSI just arrived, they were late to market for that one. The P55M-UD4 is coming up shortly, but it does not clock any better than the UD2. ;) The lack of passive MOSFET cooling was not a problem on either board under full load. The bigger problem is that the 4+1 PWM setup is not going to handle high current draws. The UD4, GD45, and MIII GENE boards are designed for that audience.
  • MadMan007 - Monday, October 5, 2009 - link

    That's simple enough to understand in a basic way but could you elaborate on what *high* current means, and what the difference in ovreclocking might be? In the context of 24/7 overclocks as you go on about in this article would be best...you seem to imply in the article that the UD2 will be as good as any at 24/7-type settings but it would be nice to clarify when 'high' current is an advantage.
  • yacoub - Monday, October 5, 2009 - link

    Cool, looking forward to that UD4 review =)
    I wonder if the extra features will be considered worth the price difference, although it sounds like you do not believe so.

    The onboard audio is one area i've heard several complaints for cheapest Gigabyte boards compared to the mid-level and upper-tier boards.
  • MadMan007 - Monday, October 5, 2009 - link

    What exactly were the issues or differences in the audio? Features or sound quality?
  • yacoub - Monday, October 5, 2009 - link

    at the moment i can't find either of the reviews i read a couple weeks ago, but both stated sound quality issues with the onboard solution, which is a lower grade than what is included on the other boards.
  • philosofool - Monday, October 5, 2009 - link

    I have one of these boards and the sound is great. I'm listening to Little Milton (Grits Ain't Groceries) right now: I can hear every horn, bass string, cymbal crash like I'm sitting on stage. Okay, maybe that's an exaggeration, but there's nothing wrong with the audio on this board.
  • yacoub - Monday, October 5, 2009 - link

    To be more specific, there are reviews on other sites mentioning the particularly crappy onboard audio solution on the UD2 compared to the UD4, and there's also the lack of cooling on the VRMs.

    On the upside, sure, it uses slightly less operating power, and that can be important to users interested in uATX, but overall I'd rather spend another $20 or whatever to get the UD4 with better cooling and audio (and whatever else it adds).

  • yacoub - Monday, October 5, 2009 - link

    Awesome work with the review, Gary. I do wish the uATX boards would stop carrying legacy ports like others have noted. Floppy is definitely archaic, IDE should be the next item tossed, and PCI could probably go as well. FireWire is also something 99% of us could live without on a uATX board that offers USB and eSATA.

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