On the basis that Intel primarily ships a working motherboard at the beginning of a chipset release, it is hard to say how much effort they put into a product for the consumer.  As media, our media samples usually contain an Intel board and a processor – that board being the product of what one assumes to be from a small team in comparison to the processor and chipset design arms.  For other companies for which motherboard manufacture is their one and only business, they are more likely to heed consumer feedback and adapt their products to better fit into the market.  Intel does not need to do this – their motherboard sales are a fraction of everything else.  Nevertheless, consumers and system builders may wish to pair an Intel board with an Intel CPU as an indicator to retain a single company's components.

So what Intel has provided is a simple, yet functional, $300 motherboard for X79.  The good thing is that it works, and is stable.  As a stickler for specifications, Intel does not have to pursue absolute performance from the VRMs in overclockability, but if that happens anyway, it becomes a bonus.  However, in this quest for a ‘board that works’ philosophy, we are let down on several points.

Firstly is the PCIe configuration, especially when double slot dual GPUs are used.  These have to take up the first two PCIe x16 slots, which when the GPUs are double slot width leave no gap between them.  There were times in my dual GTX580 testing where I was concerned about temperatures, perhaps suggesting that users in this situation use custom fan profiles on their GPUs.  Next in the firing line is the software for users – there is nothing apart from an overclocking utility for the OS.  Although it is well made, some form of fan controls is essentially a must-have in the current land of motherboard comparison.  As a result, this automatically removes it from any awards I may have been considering giving the board after testing.  Also of note is the lack of SATA cables in the package.  Unfortunately, I have a media sample rather than a retail package, which lacks the Bluetooth/Wifi module, but nothing in the product specifications points to any SATA cables being bundled.

Despite this, there are positives to the board.  It houses dual gigabit Intel NICs, which is always welcome when spending $300 on a board.  Alongside this, I really liked the ‘Back2BIOS’ button on the I/O panel, providing a quick and sure-fire way to get back into the BIOS and change various options.  The BIOS does not win any awards, being a simple functional menu system with various ASCII art representations of parts of the board, but it gives info when required which is still an issue for some motherboard manufacturers.  Also a positive is the overclocking settings, which on the 1.00x gear ratio instantly provided 4.6 GHz at 1.42 V.  As we’ve reviewed previously, at this speed and voltage the processor can get quite toasty (80C in a Blender stress test), even with the Intel Liquid Cooler outside of a case, so consumers may consider a lower speed setting which also works well with memory, such as 4.4 GHz and DDR3-1866.

In the grand scheme of things, this board works.  However for the price, there is not anything that makes it stand out from the crowd.  I would not recommend it for anyone considering using more than one GPU due to the spacing, or for those that want to adjust fan speeds for temperature and noise from motherboard OS controls. 

The Intel DX79SI is expected to retail in the $290-$300 region, and comes with a 3 year limited warranty.

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  • Blaze-Senpai - Friday, November 18, 2011 - link

    I always thought Intel made their boards as a "reference" like Nvidia makes "Reference" cards; great if you want a basic but reliable board that doesn't have 9001 features you can mess with and set something on fire with at least.

    As for All Intel Branding... if only Intel made RAM...
  • Bristecom - Saturday, November 19, 2011 - link

    Wow, the price of motherboards has really gone up. My top of the line Intel mobo from 2004 (D875PBZ) and my brother's top of the line Intel mobo from 2008 (DX48BT2) were only about $150; now they're double!

    BTW, I'm kind of surprised you didn't mention the audio here. But I guess nobody cares about onboard audio anymore since they're all basically the same Realtek codec?

    Anyway, thanks for the review AnandTech, you always have the best reviews on the net!
  • Bristecom - Saturday, November 19, 2011 - link

    Guys, I just had a look at Intel's Product Brief on this motherboard here: http://www.intel.com/content/dam/doc/product-brief...

    It says UV Reactive SATA Cables ARE included! Also, strangely, it lists under "Hardware Management Features" that it has "Processor Fan Speed Control" and "System Chassis Fan Speed Control!" AND it lists PCI Express 3.0 for all three ports! So if these specs are indeed correct, this review needs to be updated. Perhaps the reviewer got a crappy pre-release model/prototype?
  • rallyhard - Saturday, November 19, 2011 - link

    Don't mean to be rude, but I expect a little more out of AT than:

    "However, to an enthusiast, it is strange to say that they sell well "
    "While ASUS, Gigabyte, MSI and the test have teams of designers for graphical interfaces"
    "I can much use for this in case errors arrive"
    "A lot of motherboard manufacturers in X79 should be placing the first and second PCIe slots at least an extra PCIe width apart"
    "There is a big gap in the I/O"

    ...and that was only on the first page.

    Are other commenters just holding their tongues to be nice, or...?
  • marraco - Sunday, November 20, 2011 - link

    -I love how small those chips are getting. Each year they appear more and more like if they were printed on the PCB.

    -They should put the first PCI slot nearest to the processor, because is the only one place which can be used to plug video cards without being blocked.
    That would need extra space on the case for the last video card, if it takes 2 slots, but most cases have that extra space, so I think that blocking a potential PCI slot is worse that blocking a potential third card.
    You do not want to put a triple video card system on a small case, because of airflow and cooling constrains. But if you spend all that money, is more probably that you also will invest on other cards, like decent sound.

    -As ever, Intel motherboards are crappy and expensive.
  • Questor - Sunday, November 20, 2011 - link

    While I agree, dual LAN without teaming seems a bit silly at this point in history and missing other bells and whistles (new BIOS type) at it's price point is a bit disappointing. However, unless I read this review cross-eyed (trust me, I have sleep problems, it's possible), this Intel board performs better than most of the 3rd party manufacturers who have much bigger groups working on developing their bread and butter products. Slot placement has seemingly always been a gripe by consumers from every board maker at various releases and certainly not an exclusive to an Intel board. I am not defending it, I am just saying, I have seen (maybe not here) board become recommended even though slot placement was a con many times.
    Maybe I am missing something here, but when a board is rock solid reliable, overclocks decently (if that is a feature a customer wants), and out-performs and/or is on par with 3rd party board performance at or near the same price point, isn't that a win?
    I have never owned an Intel board in my life. If I read around the 'Net and see similiar performance comparisons, this could be my first.
  • soltys - Monday, November 21, 2011 - link

    While I agree with some points, 2 things i'd like to point out:

    - looking at the /relatively/ slim and non-bloated software controls - they are already a reason for some award ('common sense' one perhaps ?). Relatively to the bloat other companies can stuff ... one often avoids using them because they are essentially a few checkboxs / sliders weighting heavy tens or hundreds (CCC, *cough*) megabytes; leaving aside well guessed reasons

    - subjectively, I've always considered a front panel with knobs as a proper method to control fans, not a software
  • ReySys - Tuesday, November 22, 2011 - link

    I always use this motherboards. In last times I was hoping to try a Asus. But Intel MB are very stable. The warranties are excellent. Fail is a rarity in this motherboards. I agree is rare to see a review. In the weekend, I see the 2 new enthusiast boards & I correct my decision to try Asus. What I like of this brand is they always are in emergent markets as Mexico. For so many years. You can try his technology. Asus in the other side only bring the cheap models. Maybe a disttributor in a rare ocasion brings a premium model. The price is high but is worth it. My desktops rigs endure almost 2 or 3 years with me. Then I resell the rig and my clients fight for it. They keep the anothar 2-3 years. The value of a self made desktop is very high. First his performance is better than any standard desktop, so you only need to change it when is leap forward in technology. The resell value is high too. In self-made you can always change a part to improve performance. This is the reason why I don´t like iMacs, so closed mind devices. I you feel the power, you are a hard to eclipse person. I always tell my boss that bringing my self-made equipment becasue his Enterprise Hp desktops are a shame. The idea is if you follow company guidelines you are going to be very behind of reality & speed. Have a nice week!
  • bellends - Saturday, January 4, 2014 - link

    This mobo DOES support teaming. WTF dude
  • Rodofhot - Tuesday, September 2, 2014 - link

    They prob dont even know what teaming is they are just repeating some early reviews they read.

    There r two kinds of people ones who like Intel everything and they seem to remember the pros of an intel board and thoes who want a cheap alternative to an intel mb and they seem to recall any cons of an intel board even though those cons may be a farse. I've read this mb doesn't support PCI 3.0 and also that it does support it in this articles' comments. Notice the guy who states PCI 3.0 is supported includes a link. Like me he must be the type who remembers the pros I guess as a fan of intel I must go uncover the truth. My guess is maybe a relase bios left ver 3.0 unsupported as with the teaming.

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