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Gigabyte P55-UD3R

P55 On A Budget: Five Core i5/i7 Motherboards For $100-$150
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For a full-sized motherboard that costs less than $140, the P55-UD3R is amazingly crowded with features. However, there are no buttons and status panels, or even the rarely-used (but often expected) FireWire interface.

Instead, Gigabyte decided to focus on the “free stuff.” That is, functions already included in a multi-I/O that most manufacturers have long made inaccessible. The bottom edge hosts a floppy interface, communications port, and even the long-forgotten parallel port. Those who really despise legacy interfaces must be reminded that their favorite "legacy-free" product likely has these same features hidden from view inside the I/O controller.

Filling the board half-way with freebies allowed Gigabyte to put the money saved towards more useful items, such as a 10-phase voltage regulator and an eSATA controller, separate from the internal ATA/SATA combo controller. Anyone who needs features not included will be happy to find seven expansion slots employed, though as is the case with the Asus board, the second x16 slot is limited by its four PCIe 2.0 pathways through the P55 Express PCH.

Gigabyte makes reaching its front-panel audio and Ultra ATA interfaces handy by placing both above the P55-UD3R’s center line, but Windows XP RAID installers might be frustrated that the floppy connection has been shoved under the bottom PCI slot. Another potential problem is that the chipset’s integrated SATA ports all face outward beneath the second x16-length slot and all six are easily blocked by long double-slot graphics cards. Having noticed the potential problem, we remind readers that the second x16 slot's x4 pathways make it unsuitable for high-performance graphics applications, though it is suitable for hosting a less-elaborate graphics card and other medium-bandwidth needs.

BIOS

We installed the latest public BIOS available by September 12 on each motherboard, including Gigabyte’s P55-UD3R version F3e. After testing was complete, we confirmed that two bugs that negatively affected installation and hardware detection were later solved in version F3h.

Gigabyte’s new M.I.T. menu offers basic system information, with all user-configurable settings moved to appropriate submenus.

The Advanced Frequency Settings submenu has controls for a CPU multiplier and base clock, QPI ratio, memory ratio, PCIe frequency, drive strength, and clock skew. Due to a discrepancy at its “automatic” setting, we set the base clock manually to 133 MHz for our benchmarks.

The Advanced Memory Settings submenu allows DRAM timings to be adjusted automatically, per channel, or for all channels. Choosing the “quick” mode allows timings for both channels to be set from either Channel A or Channel B submenus, where “automatic” mode for less-understood values eases manual configuration.

Gigabyte’s P55-UD3R includes a relatively broad set of voltage controls to satisfy moderately-advanced overclockers. Our only complaint was that memory voltage jumps directly from 1.64 to 1.66 V, skipping the 1.65 V setting so often recommended by memory manufacturers.

Up to eight BIOS Profiles can be stored on the BIOS IC, while more can be transferred to a hard drive, floppy, or flash drive.

Accessories

Like most motherboards in the $100-$150 range, the P55-UD3R includes four SATA cables and an 80-conductor IDE ribbon. Anyone who wants to access the motherboard’s plethora of legacy features will need to buy cables and adapters separately.

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  • 0 Hide
    dirtmountain , October 8, 2009 7:05 AM
    The Asrock P55 Pro is 16x-4x, not 8x-8x.
    http://www.asrock.com/mb/overview.asp?Model=P55%20Pro
    http://www.newegg.com/Product/Product.aspx?Item=N82E16813157171
    The Asrock P55 Extreme at $140 offers 8x-8x
  • 4 Hide
    JeanLuc , October 8, 2009 8:44 AM
    Good read but it really just confirms what a lot of us have known for a long time. Don't buy budget motherboards (MSI, ASrock, ECS) if you want to overclock and it's no coincidence that the boards from Gigabyte and Asus passed with flying colours as these companies clearly have proper testing procedures in place and quality assurance measures to avoid such issues.
  • 0 Hide
    evongugg , October 8, 2009 11:29 AM
    Another great article from Tom's, letting us know about how one of these motherboards can burn your CPU. Never would have known without you.
    Might have burnt out a CPU and not know the cause.

  • -4 Hide
    Crydee , October 8, 2009 12:06 PM
    How would P55 stack up against non P55s is what I wanted to see as well. See if the premium is worth it over the more budget friendly P55.
  • 0 Hide
    LATTEH , October 8, 2009 1:01 PM
    nice article i liked it!
  • 0 Hide
    avatar_raq , October 8, 2009 1:26 PM
    Unfortunately neither Gigabbyte nor ASUS boards offer the 8x8x PCI-e slots for multiple GPUs. I think it's better to wait for their premium brethren to fall below $150 before upgrading.
  • 1 Hide
    SchizoFrog , October 8, 2009 1:52 PM
    For the extra $20 you can get the ASUS P7P55D PRO which is a much better board and offers the full spec for multi GPUs... However, I personally can only recommend what I would do myself and that is to wait. There are a lot of major PC spec changes over the next 6 months. So I am waiting for USB3 and SATA3 to make it to mainstream.
  • -4 Hide
    SchizoFrog , October 8, 2009 1:52 PM
    For the extra $20 you can get the ASUS P7P55D PRO which is a much better board and offers the full spec for multi GPUs... However, I personally can only recommend what I would do myself and that is to wait. There are a lot of major PC spec changes over the next 6 months. So I am waiting for USB3 and SATA3 to make it to mainstream.
  • -4 Hide
    helms , October 8, 2009 1:54 PM
    I doubt their quality assurance is as good as you think Jeanluc. Both Gigabyte and Asus make crap DDR3 controllers for socket 775 motherboards. I've tested a heap of DDR3 socket 775 boards from Asus and Gigabyte, the Asus P5Q3 in particular is causing a lot of problems. When paired with a quad core cpu (everything stock) and running 3 threads prime(blend) + furmark, the system would inevitably freeze in under 2hr's (usually within the 30 minutes mark, quite a bit less than 2hrs). In fact systems with those boards would freeze even during normal non PC intensive use such as browsing the internet. Running prime+furmark just forces it happen rather than waiting for it to freeze which is quite random during light use like word prcoessing. I doubt Asus even realizes that their P5Q3 is a faulty product and shouldn't have hit retail stores. They have been selling the P5Q3 for ages. They probably tested the board with a cheap dual core celeron and since it worked with that called it a day.
  • 0 Hide
    burnley14 , October 8, 2009 2:18 PM
    JeanlucGood read but it really just confirms what a lot of us have known for a long time. Don't buy budget motherboards (MSI, ASrock, ECS) if you want to overclock and it's no coincidence that the boards from Gigabyte and Asus passed with flying colours as these companies clearly have proper testing procedures in place and quality assurance measures to avoid such issues.


    I think you're jumping to conclusions here. Tom's reviewed some boards a while back for the 1366 socket and gave ASRock first place for quality and value.
  • 0 Hide
    avatar_raq , October 8, 2009 2:24 PM
    @ schizofrog :
    Yeah and the GIGABYTE GA-P55-UD4P is priced similarly and sports 8x8x configuration and more SATA ports.
    I believe well-featured P55 mobos are still expensive for the mainstream market.
  • -2 Hide
    oldscotch , October 8, 2009 2:35 PM
    Still getting two or three PCI slots on these new boards. I can see one, and I realize they're budget boards - but still. I'd much rather see some more x4 PCI-e or even just x1 options that would give graphics cards some breathing room.
  • 3 Hide
    Crashman , October 8, 2009 3:00 PM
    helmsI doubt their quality assurance is as good as you think Jeanluc. Both Gigabyte and Asus make crap DDR3 controllers for socket 775 motherboards.


    Intel made the memory controllers on Asus and Gigabyte P45/X48 motherboards. If it fails after two hours, there's a chance you're using inferior-quality memory.
  • -1 Hide
    Crashman , October 8, 2009 3:03 PM
    oldscotchStill getting two or three PCI slots on these new boards. I can see one, and I realize they're budget boards - but still. I'd much rather see some more x4 PCI-e or even just x1 options that would give graphics cards some breathing room.


    They're already using up all the PCIe lanes, when they put a second x16 slot on a board and feed it with four of the P55's eight. Sorry, the P55 isn't designed to support a buch of high-bandwidth slots, that's what the X58's for.
  • 1 Hide
    alexie , October 8, 2009 3:09 PM
    My question is
    "will there be a chipset made by Nvidia for 1366 socket or 1156 socket intel cpus?"
    Cause Nvidia is making good chipsets with both on-board VGA for mainstream and upper mainstream cpus.
  • 0 Hide
    ceteras , October 8, 2009 3:26 PM
    alexieMy question is"will there be a chipset made by Nvidia for 1366 socket or 1156 socket intel cpus?"Cause Nvidia is making good chipsets with both on-board VGA for mainstream and upper mainstream cpus.


    The answer is NO
  • 0 Hide
    murst , October 8, 2009 3:35 PM
    The ECS P55H-A has a power connector for the graphics card next to the pci express 16x slot. My graphics card ( Radeon 5850 ) already has 2 power connectors on it.

    Do all 3 power connectors need to be hooked up? Thanks!
  • -1 Hide
    lafanzy , October 8, 2009 3:44 PM
    Quite an irritating writeup I'd say. Sarcastic and vague comments with strong emphasis on avoidance in getting to the point. i like to call it bias, but, i haven't tested all the mobos myself. What do I get out of this article? How to kill a good article title in five.
  • 1 Hide
    ceteras , October 8, 2009 3:47 PM
    I wonder how cheap can they build a mainboard with no extra features (no overclocking support, no bells&whistles). Just the bare needed to keep the cpu working at it's default potential.
    I'd like one of these.
  • 2 Hide
    Sunburn74 , October 8, 2009 4:05 PM
    Hey, can you guys start testing if S3 sleep is maintained at high overclocks? Gigabyte board look great on paper, but the fact is something like 80-90% of them cannot S3 sleep once you start overclocking past a certain point. My next mobo has to be able to overclock and keep the sleep feature intact. It takes one sec to test. Please include it in the future. Thanks
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