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X48 Motherboard Comparison, Part 2

Onboard Devices

NorthbridgeIntel X48 Express MCH
SouthbridgeIntel ICH9R
Voltage RegulatorFive Phases
BIOS1554 (05/01/2008)
333.3 MHz (FSB1333)333.3 MHz (+0.0%)
Clock GeneratorSilego SLG505YC256BT
Connectors and Interfaces
Onboard2x PCIe x16 (Modes: Two x16: One x4)
2x PCI
2x USB 2.0 (2 ports per connector)
1x IEEE-1394 FireWire
1x Ultra ATA (2 drives)
6x Serial ATA 3.0Gb/s
1x Front Panel Audio
1x S/P-DIF Out
1x High Definition Audio Link header
Front panel CIR receiver (input) header
Back panel CIR transmitter (output) header)
1x Internal Power Button
2x Fan 4 pins (CPU/Chassis)
3x Fan 3 pins (Chassis/Chipset)
IO panel2x External SATA
8x USB 2.0
1x IEEE-1394 FireWire
1x RJ-45 Network
5x Analog Audio (7.1 or 5.1 ch. out, 2 or 4 ch. in)
1x Digital Audio Out (S/P-DIF Optical)
Mass Storage Controllers
Intel ICH9R6x SATA 3.0Gb/s (RAID 0,1,5,10)
Marvell 88SE6121-NAA1 PCI-E1x Ultra ATA-100 (2-drives)
2x SATA 3.0Gb/s (RAID 0,1, JBOD)
Intel 82566DC (GLCI) PHYGigabit LAN Connection
IDT STAC9274D57.1 + 2 channel Multi-Streaming Output
Texas Instruments TSB43AB22A2x IEEE-1394a (400 Mb/s)

Intel provides the full range of controllers we’d anticipate for any high-end board, including even the old IEEE-1394 FireWire interface, but the rear panel ports are a bit of a surprise:

In a not-so-bold move to eliminate legacy “junk,” Intel has eliminated PS/2 ports from the rear panel just as it removed the floppy cable header from inside. Two eSATA ports take their place, while a total of eight USB 2.0 ports provide more than enough connectivity for the average set of peripherals.

One other thing Intel has eliminated from its rear panel ports is any secondary Ethernet port. Intel is probably the biggest fan of Intel integrated controllers, and the chipset only directly supports one of those.

The 82566DC GLCI PHY accesses the ICH9R’s integrated networking capability, and being an Intel part we’d expect to find one on most of its desktop motherboards.

Intel gets its legacy Ultra ATA and modern eSATA connections from a single chip, the Marvell 88SE6121 PCI-Express to ATA controller.

From Ultra ATA, the next closest thing Intel has to legacy parts on its board is the Texas Instruments TSB43AB22A two-port IEEE-1394 controller.

Intel might be the “Leap Ahead” company, but it decided to “think different” about its audio solution. Formerly known as SigmaTel’s “Red River” audio controller, The IDT STAC9274D5 supports Dolby Home Theater for soundstage expansion (Dolby Headphone, Dolby Virtual Speaker) and on-the-fly analog to digital conversion (Dolby Digital Live), plus advanced features such as an integrated 12-band parametric equalizer and multi-streaming of separate 7.1 surround speaker and 2-channel headphone outputs.

  • nihility
    I thought the major concern with overclocking was doing it with 4 GB or 8 GB of memory installed and with quad cores.
    Buying an overly expensive high end motherboard but installing a 65 nm dual core processor and just 2 GB of RAM seems a very odd combination to me.
  • @ni

    Not so odd if you want to get the base foundation set up and then wait for lower prices on higher performance parts later on down the road.
    A quad core (3.0 GHz x 4) chip is coming down the pike by years end and DDR3 prices are on the slide. Building an E8400 / 2 GB base machine is exactly what I did to finally migrate from my 5 year old P4 Extreme Edition / Intel 875 based rig.

    That's the beauty of the X48 platform; longevity.
  • The ECS offering has supposedly been out for around a month, but I can't find it for sale ANYWHERE!! can't even find a price. I used to turn my nose up at ECS products. Our company used Asus boards exclusively thinking they were a higher quality product. Evey one of our Asus boards failed within 4 years. This may be because the Chinese have studied the American business model... Make a product that is designed to either fail or need parts within a calculated period of time. ECS are much cheaper, and so far seem more stable than the Maximus Formula board we purchased recently. The Asus BIOS is for people who like to toy with settings. Unfortunately their BIOS has become complicated beyond their programmers ability too write stable code.
  • Glad to see that gigabyte's board was so much more energy efficient than Asus', or any other board for that matter... especially while overclocking
  • Fedor
    Arcolyte - lol. Did you fall asleep and dream up another page of the review which had power consumption whilst overclocking? :p

    For the record I'm using my first Gigabyte board (X38-DQ6) and overall I'm pretty happy with it, but having said that I haven't used Asus in at least 5 years. With these comparisons it often comes down to features since performance is pretty near (although the low memory speeds achieved by the Gigabyte surprised me!).
  • " Intel covers all of its CPU VRM MOSFET?s with sinks. Our apologies for the alphabet soup that made up the last comment. " -> You could've gone with " Central Processing Unit Voltage Regulator Module Metal?Oxide?Semiconductor Field-Effect Transistor's " , so it's ok =)
  • frodbonzi
    I wonder how the Asus' Rampage Formula stacks up here? It supports DDR2 or DDR3 and is part of the RoG line... X48 as well...
  • xanxaz
    asrock i'll keep my gigabyte... as i dont know where to say this, it's better say it here... your main page is eating my cpu cycles... between 25% up to 50% cpu utilization while viewing your site? please cut down in animated ads... running a c2d at 3.6 and still lags while surfing... dah... it's just your site... os is it me? i think it's the ad on the top right corner that is causing that...
  • wozeus
    I see that Newegg has ECS X48T-A for under $200. Looks like it's a great deal...going to get one.