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Asus Z87 Sabertooth Motherboard Review (w/ Intel i7 4770k)


We always like to use the latest memory when testing a new series of motherboards. With this in mind Corsair very kindly offered to send us 16GB of their latest Vengeance Pro Series 2,400mhz memory. We will be looking closer at this memory in a dedicated review shortly.
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The Corsair Vengeance Pro ships in a colourful package featuring an artistic photograph of the heatspreader, as shown above.
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The heatsinks are nicely designed with curved edges and company branding on the sides.
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This memory has an XMP profile set at 2,400mhz with 10-12-12-31 timings.
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Corsair also sent us one of their HX750 power supplies which is 100% compatible with Haswell. We recently published a little article on these compatibility concerns over here, with a short excerpt below:

“Intel’s Haswell C6/C7 power states require a minimum load of 0.05A on the 12V2 rail and many current power supplies will fail to provide that low a current. Many older power supply designs comply with ATX 12V V2.3 design guidelines meaning they only call for load of 0.5A on the CPU power rail. This will mean C6 and C7 power states will be disabled in the bios.

Although we have yet to test, there may be cases that the supplies will become unstable when the processors try to enter into these states. Additionally the problems get worse when we factor in that many power supply units do not report minimum currents supported by the 12V2 rail.

From what we hear, the problem may kick in when the CPU enters sleep mode but with a load on the power supply non primary +3.3V and +5V rails. If the load on these rails hits a certain point (different from PSU to PSU) the +12V can go out of spec – voltages greater than 12.6V. If the +12V is out of spec when the system steps out of sleep state the power supply protection may kick in and stop the power supply from running normally. This situation may involve the end user turning the power supply switch off and back on again.

A power supply that uses a DC to DC design for the non primary +3.3V and +5V rails will not have a problem with the new low power sleep states. The reason is based around the DC to DC converter, used to convert +12V to +3.3V and +5V. This design ensures that there will always be load on the +12V regards of the load the CPU places on the power supply.”
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Corsair also sent over one of their H100i coolers which we reviewed back in November last year, it is one of the best mainstream ‘all in one' coolers money can buy. You can read our full review over here.

Special thanks to Corsair for outfitting us with much of our partnering equipment for this review today.

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12 comments

  1. Terrible Terrance

    Is the tuf armor not restrictive though? seems to block a lot of the spots id like to get access too.

  2. THe previous generations of this board have been superb, ive owned a few. My last one failed when I spilt coke over the top of my case and a bit of it hit the pcb. my own fault.

    Not got the cash right now for an upgrade but will be later in the year. this is top of my list.

  3. Not really that exciting a board – but rock solid. I want to see the ROG versions.

  4. ITs a great board, what are you talking about Anusha. Its a more laid back colour scheme, hardly matters, most of it will be covered in a system build.

    I do want tsee the ultra high end asus boards though.

  5. 4770k is a bit of a let down unless I couldnt afford a graphics card.

    overall nice board, but im happy with my 5.0ghz 3770k

  6. 4770k is a flop. Intel are clearly focused on the mobile platform now and power reduction rather than moving forward in the high end and giving people a huge step up. anyone with a 3770k wont need to move,unless for some reason they need onboard graphics !

    disappointing CPU launch, but great motherboards from the guys. I like how they have ditched the old SATA standard now instead of 3 or 4 useless ports for SSD.

  7. 4770k isn’t that bad, but I agree, its not a huge step forward. it may help those peoplee who buy a lower end processor and cant afford a graphics card, but who the F*CK will want a 4770k for onboard graphics performance? its irrelevant really.

    Ive seen a lot of reviews today and there seems to be a huge variance on the overclocks, which would suggest the new manufacturing process isn’t quite at the level it should be. ill stay with my 3570k for a while longer as its working well with the 7950 I have.

  8. How can it support Quad-SLI with only three PCI slots?

  9. @ Billy. some nvidia cards have two GPU’s, so two of them in a pairing – quad SLI.

  10. Example…..:

    2x GTX 690 = 2×2 GPU = Quad-SLI
    4x GTX Titan = 4×1 GPU = 4Way-SLI

  11. I guess the motherboard manufacturers will be really pi55ed about the “huge” sales coming their way lol. If I were them I’d play a little with Intel for the next chipsets. Intel is going down as they follow their ambitions rather the market. They should let ARM alone and focus on the categories that made them what they are.

    It’s really scary reading about all that heat coming off and about that 100i that can hardly keep up at 4.5GHz+. What about the box cooler??!

    A board packed for OC is an useless piece of cr0p when OC is impossible. Now it’s AMD move, if they have a single ace up their sleeve they’d better be pulling it. It’s time…