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Gigabyte Z87 Motherboard VRMs?

post #1 of 14
Thread Starter 
Anyone have any info on what VRMs the Z87 GB boards will use?

Looking at this picture it doesn't look like IR3550s are used:


That is supposedly the leaked picture of the next UD3H. I'm really hoping the Ultra Durable 5 "tech" gets implemented on their mATX boards with at least a true 6 phase design. I want them high OCs.

The Z87X-OC does have IR3550s confirmed.

Please share if you got anything.
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post #2 of 14
Pretty sure that looks like a 6+2 phase setup but surely i would hazard a guess it's the same VRMs (not controllers) as the UD3H, that had a Ultra durable 4 not 5. So definitely wouldn't be using IR 3550 VRMs but it definitely looks like IR3567A VRMs
Why would you expect UD5 on a low-end board? I definitely wouldn't looking at the previous gen
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post #3 of 14
Thread Starter 
I'm really hoping for a high end mATX board. Small shouldn't mean slow. The G1 Sniper M3 already has the same VRMs as the UD3H, but I hope there will be a better board next gen.

Asus already makes the Maximus V Gene which uses 4 true phases and costs $200!
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post #4 of 14
I don't think there will be major component quality changes between comparable Z77 and Z87 board models. The -D3H and -UD3H are lower mid-tier models, why would they have IR3550 on them?
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post #5 of 14
IR3550 also has two little brothers, the IR3553(40A, most likely this) and the IR3551(50A). IR3550 are very expensive, it wouldn't make sense to use them on all boards, especially because 60A is pretty high and you only need like 20-30A per phase for even the most extreme OCes, haswell will prob use even less power than Ivy as the 22nm process has most likely been improved and there is a FIVR. The lower current ones in a smaller package aren't bad at all, they still retain high efficiency because MOSFET size does correlate with performance too, small MOSFETs tend to be more efficient. When you reduce the size of a MOSFET you reduce its gate capacitance, that is why you see smaller and smaller transistors in chips(apart form the fact you can fit more in) as they can switch faster.

Anyways it is interesting to see the difference in the die size, those pads that are empty are for fitting the IR3550, you see the same thing on GIGABYTE's X79 boards where the 40A IR3553 are used for DRAM and VCCSA/VCCIO phases. Also you should realize that there is now no more 6+1+2+1 or whatever, it is just 6 phases or 8 phases or 4 phases or 10 phases, there is jut one single voltage rail.

I think I have said enough not to break any NDA, also GB has some pretty sick boards planned for Z87. That UD3H has 8 phases, and thus is using a IR3563A(8+0, true 8 phases)



I wont do that for the Z87X-OC, please don't ask, i don't wanna get in trouble lol. But i am so excited for the final version of that board.
Edited by Sin0822 - 3/21/13 at 8:02pm
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post #6 of 14
Quote:
Originally Posted by Sin0822 View Post

Also you should realize that there is now no more 6+1+2+1 or whatever, it is just 6 phases or 8 phases or 4 phases or 10 phases, there is jut one single voltage rail.

I did not know that about Lynx Point. I guess that explains the exceedingly low number of phases on ASRock's B85M shown at CeBIT. Hopefully Gigabyte's mATX B85 boards will be more promising, as I liked the B75M-D3H.

If it doesn't violate a NDA, could you tell us if you need the same total amount of phases for similar OC characteristics, or does having a single unified rail mean that fewer phases are needed?
Edited by svenge - 3/21/13 at 8:14pm
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post #7 of 14
Thread Starter 
Thanks Sin0822! I was hoping you would reply to my thread biggrin.gif I learned about those MOSFETs from your awesome videos and site.

I'm just hoping for something like the Sniper M3, but with higher specs for OCing. Maybe without the upgrade "intergrated" sound and I'll be very happy. Especially if it can be at Haswells release.

I've also been wondering how the integrated VRM works in Haswell and you explained it too. Thanks a lot.

Just that nice little hint that GB has some great boards for Z87 is already enough info for me (at least for now). thumb.gif
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post #8 of 14
Quote:
Originally Posted by Sin0822 View Post

IR3550 also has two little brothers, the IR3553(40A, most likely this) and the IR3551(50A). IR3550 are very expensive, it wouldn't make sense to use them on all boards, especially because 60A is pretty high and you only need like 20-30A per phase for even the most extreme OCes, haswell will prob use even less power than Ivy as the 22nm process has most likely been improved and there is a FIVR. The lower current ones in a smaller package aren't bad at all, they still retain high efficiency because MOSFET size does correlate with performance too, small MOSFETs tend to be more efficient. When you reduce the size of a MOSFET you reduce its gate capacitance, that is why you see smaller and smaller transistors in chips(apart form the fact you can fit more in) as they can switch faster.

Anyways it is interesting to see the difference in the die size, those pads that are empty are for fitting the IR3550, you see the same thing on GIGABYTE's X79 boards where the 40A IR3553 are used for DRAM and VCCSA/VCCIO phases. Also you should realize that there is now no more 6+1+2+1 or whatever, it is just 6 phases or 8 phases or 4 phases or 10 phases, there is jut one single voltage rail.

I think I have said enough not to break any NDA, also GB has some pretty sick boards planned for Z87. That UD3H has 8 phases, and thus is using a IR3563A(8+0, true 8 phases)



I wont do that for the Z87X-OC, please don't ask, i don't wanna get in trouble lol. But i am so excited for the final version of that board.
Really looking forward to Gigabytes Z87 boards ,will get at least 2 boards and couple of chips in june and full Dewar thumb.gif
post #9 of 14
Thread Starter 
I think I can safely expect an 8 true phase mATX board then. Woohoo wheee.gif

Haswell, please OC to 5.0ghz on air. Haha
Edited by ohhgourami - 3/21/13 at 11:26pm
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post #10 of 14
Quote:
Originally Posted by svenge View Post

I did not know that about Lynx Point. I guess that explains the exceedingly low number of phases on ASRock's B85M shown at CeBIT. Hopefully Gigabyte's mATX B85 boards will be more promising, as I liked the B75M-D3H.

If it doesn't violate a NDA, could you tell us if you need the same total amount of phases for similar OC characteristics, or does having a single unified rail mean that fewer phases are needed?
I am not quite sure, that is part of intel spec and i do think that will break NDA, but i think that B75M board would show the least amount of required phases, as that number does exist. Unified rail just means that you don't need the +certain amount of phases, so basically the amount of phases you see all goto the CPU. I wrote a blog on the FIVR, http://sinhardware.com/index.php/blog/314-haswellfivr off some publicly available slides i found on the net. Look through the blog and the PPT it has some cool info in there.
Quote:
Originally Posted by ohhgourami View Post

Thanks Sin0822! I was hoping you would reply to my thread biggrin.gif I learned about those MOSFETs from your awesome videos and site.

I'm just hoping for something like the Sniper M3, but with higher specs for OCing. Maybe without the upgrade "intergrated" sound and I'll be very happy. Especially if it can be at Haswells release.

I've also been wondering how the integrated VRM works in Haswell and you explained it too. Thanks a lot.

Just that nice little hint that GB has some great boards for Z87 is already enough info for me (at least for now). thumb.gif

I think you wont be disappointed! GB has really put in their best stuff for Z87, they are getting their act together after the P67 debacle, Z77 was a step up and Z87 will deff be very interesting, you guys saw the Z87X-OC, just a taste of whats to come.

Quote:
Originally Posted by Bullant View Post

Really looking forward to Gigabytes Z87 boards ,will get at least 2 boards and couple of chips in june and full Dewar thumb.gif
Yea man, you will be happy, you did some really nice work with the UP5 and PSC under LN2, very nice stuff mate, you are going to have a VERy good time.
Quote:
Originally Posted by ohhgourami View Post

I think I can safely expect an 8 true phase mATX board then. Woohoo wheee.gif

Haswell, please OC to 5.0ghz on air. Haha
Perhaps, maybe not, who knows, i don't even think you will need 8 phases, 6 would even do just like on Z77. Haswell is built from the bottom up instead of the top down. Almost all new generation Intel CPUs have been basically built to be server CPUs and then certain things were removed to lower the TDP, haswell is built from the mobile upwards, i would think power consumption would be better than previous generations, but I can't say it is as I honestly don't know.
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