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[VRZ] First Look: ASUS ROG Maximus V Extreme (Z77) - An Overclocker's Dream Motherboard

post #1 of 5
7/1/12 at 4:40am
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Quote:
Last month we looked at the much coveted Maximus V Formula and today we have another board from the ASUS Republic of Gamers team in our hands. Featuring 4-way GPU support and an elaborate host of overclocker centric features in an extended ATX form factor, could the Maximus V Extreme be the Z77 motherboard that hardcore Ivy Bridge enthusiasts have been waiting for?

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Hippo (3930K + RIVE) goes sub zero
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post #2 of 5
7/1/12 at 5:09am
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post #3 of 5
7/6/12 at 9:46pm
Those are the ugliest heatsinks I have ever seen.

Why do they not simply goes with P8z77 WS Sinks?

The real questions here are: :

Release date: ?
Price: ?
Edited by FEAST - 7/6/12 at 9:49pm
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post #4 of 5
7/6/12 at 10:56pm
Am I correct in saying that the VRM design on the Maximus V Extreme is essentially the same as that on my Maximus IV GENE-Z?

Maximus V Extreme:
IMG_1375.jpg
Quote:
The Maximus V Extreme uses TrenchMOS FETs, with NXP 7030AL on the high end and NXP 5030AL on the low side,. Each pair is capable of 68A @ 25C, more than enough for any kind of overclocking.

Read more: http://vr-zone.com/articles/first-look-asus-rog-maximus-v-extreme-z77--an-overclocker-s-dream-motherboard/16453.html#ixzz1zuhJ3mfx

Maximus IV GENE-Z:
IMG_7432.jpg.jpeg
Quote:
We see a total of 12 inductors, but that is where the similarities between the Maximus IV Extreme-Z and the Maximus IV Gene-Z voltage regulators stops. Instead of the high quality copper top Infineon MOSFETs, Asus opted to use a 3 transistor design - Two PH5030AL TrenchMOS for the low-side and a single PH7030AL TrenchMOS for the high-side. You can see the rest of the low-side MOSFETs on the back of the board. The 4 phases for the iGPU just use the typical two transistor design, but with the same MOSFETs




If this is true, doesn't it mean that the older Maximus IV Extreme-Z had a higher quality VRM design?

For reference, here is the VRM on the Maximus IV Extreme/Extreme-Z. Note the NEC Prodalizer and the different MOSFETs.
attachment.php?attachmentid=2691&d=1328619203
Edited by 996gt2 - 7/6/12 at 11:10pm
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post #5 of 5
7/6/12 at 11:50pm
Quote:
Originally Posted by 996gt2 View Post

Am I correct in saying that the VRM design on the Maximus V Extreme is essentially the same as that on my Maximus IV GENE-Z?
Maximus V Extreme:
IMG_1375.jpg
Maximus IV GENE-Z:
IMG_7432.jpg.jpeg
If this is true, doesn't it mean that the older Maximus IV Extreme-Z had a higher quality VRM design?

For reference, here is the VRM on the Maximus IV Extreme/Extreme-Z. Note the NEC Prodalizer and the different MOSFETs.
attachment.php?attachmentid=2691&d=1328619203

Yes on all counts.

However he VRM up there there is nothing deficient about it, it is very strong. Very good. Ivy Bridge uses like no power, so what is the point of over the top and over the top VRM?

Now the IC they use for the drivers/doubler, it is the same GB uses IR3598, however asus re-brands it(puts their own writing on it). This little IC has the ability to have two sets of driver outputs from one PWm input, or you can configure it to have two sets of driver outputs from two PWM inputs. So you would use 4 of them to double 4 phases to 8 phases, or you would use 4 of them to drive 8 phases from 8 phases. In the case of the Gene it is doubling 4 phases as the PWm is a 7+1 phase, thus it is more cost effective to use the +1 to drive the iGPU and then you are left with 7, of which 4 would be used and doubled. In the case of the same PWM, EVGA uses the same PWM but has a 7+1 phase VRM, in which they use IR3550. Marketing likes higher phase count.

I would bet that the Extreme uses the 8 phases driven by 8 phases, so instead of 7+1 the PWm would be 8+0 mode.
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