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post #4451 of 6656
The price is right, so if it works as good as these boards, why not? It's new though, so it is soon to tell if it is stable, but HiCookie got a nice RAM OC on it. I believe the highest for Intel platform.
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post #4452 of 6656
Quote:
Originally Posted by DeXel View Post

The price is right, so if it works as good as these boards, why not? It's new though, so it is soon to tell if it is stable, but HiCookie got a nice RAM OC on it. I believe the highest for Intel platform.
Thank you, good sir. cheers.gif
post #4453 of 6656
Thread Starter 
actually the UD4H is a bit odd, but still a really good board.

In terms of power delivery it is almost equal to the UD3H. Same MOSFETs(only on UD3H and UD4H and lower end boards with less phases)however it uses an IR3564A which is a 4+1, IR3563A is 8+0, so it is odd b/c they are 1 number apart and they are the same size(small). So GIGABYTE is doubling 4 to 8 with IR3598 which is okay, almost makes it like 8, but not really. You could count phases by the number of drivers, in that case the UD3H would have 6, the UD5H would have 12, and the UD4H would have 8, the Z77 Extreme4 would still only have 4 lol, the extreme6 would have 12. Or you could count by number of true phases used, in that cause UD3H 6, UD5H 6, UD4H 4, E4 4, and E6 6. Anyways it seems to OC fine, prob b/c of the FETs, and this time they heatsinked all the VRM which was a complaint. They basically took everything wrong with the UD3H and put it into the UD4H.... which isn't bad and did some things to make the price slightly higher.

I did this: http://www.youtube.com/watch?v=_q67lMnzZ7Q

On the UD4H, so its an overview.

Basically in terms of audio:
better than UD3H but not as good as UD5H, it uses ALC892
for LAN it uses realtek 8111E which is odd i would expect atheros.
It has a cool feature with extra SATA6G, a bit ahead of its time wink.gif, basically it states that the Marvell SE9172 can provide both ports to the backpanel for eSATA or to internal ports for internal SATA, so they give you the option and cut the cost of using two to lower the boards price.

it has all the OC features, however one puts it up top, it has very VERY good memory OC, its a basic board, however it has GIGABYTE's latest T-topology routing, UD3H and others do too, but this one is much more refined. Think about all the effort they had to put into the UP7 with 10 layer PCB to have it match the performance of the UP5/UD5H, imagine taking that experience of that headache and putting what they learned into the UD4H which is more basic which is better for memory OC(less signal interruption, more trace integrity(don't have to route under or around certain things)). HD4 is also another contender with this same memory OC.
Edited by Sin0822 - 1/4/13 at 8:09pm
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post #4454 of 6656
I saw the Z77X-UD4H has 3x PCie x16 with Tri-fire and triple SLI which is odd given the price point
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post #4455 of 6656
Gigabyte lies then! thumbsdownsmileyanim.gif

Quote:
Originally Posted by AlphaC View Post

I saw the Z77X-UD4H has 3x PCie x16 with Tri-fire and triple SLI which is odd given the price point

UD3H has the exactly same PCI-E layout. X8/X8/X4 2.0. It doesn't do triple, and I don't know where you got that from.
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post #4456 of 6656
With the UD3H with 6 true phases and the UD4H with 4 true phases, will that impact the overclock between those two. I don't care much for sound quality, but I wouldn't mind having extra SATA 3.0.
post #4457 of 6656
When I try updating the BIOS, should I disconnect all my drives?
Since I have a Z77-D3H, does the backup BIOS kick in when the main is corrupted? Does it automatically restore the main BIOS w/ the backup BIOS if it gets corrupted? If so, then I really have nothing to lose if the BIOS update fails, right?
    
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post #4458 of 6656
Updating a bios is always tricky, leave only your main drive connected. Your backup bios should kick in if you have a problem.
I don't know how you update your bios but I use @Bios. Don't forget to backup your bios using @Bios or your fav method, then you should be OK. Good luck & happy update.
Edited by sgtjeep - 1/5/13 at 6:05pm
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post #4459 of 6656
Thread Starter 
Quote:
Originally Posted by DeXel View Post

Gigabyte lies then! thumbsdownsmileyanim.gif

UD3H has the exactly same PCI-E layout. X8/X8/X4 2.0. It doesn't do triple, and I don't know where you got that from.

well its called marketing lol. I mean its the same 4 phases as most of the asus lineup, it just is very hard to get true 8 phases with so many other rails like iGPU, it costs a lot. So far the UP5 is like king other than UP7.

Impact of OC not much, just like you don't see the M5G OC any less than a true 6 phase ASUS board. It is just a bit cleaner power, however more output capacitors can also make up for less true phases. As long as each phase has its own driver, it is decent in my view as you can disable individual phases if needed to save power, however you don't get that interleaving which will help with reducing ripple, instead you need to use decoupling caps.

More true phases basically allows designers to get rid of output capacitors of both MLCC and can-type, as the interleaving of of more phases can reduce the ripple current by increasing the ripple frequency. Switching frequency can also reduce ripple, however for the sake of efficiency/heat they like to keep this low. Capacitors are needed to get rid of ripple so it is a balancing game, capacitors are also one of the most expensive parts of the VRM, if not the most in many cases. This interleaving affect however is very big between 1-2 phases or 2-3 phases, but gets smaller from 3-4 and 4-5, and much smaller between 5-6 and 6-7, between 6-8 it is very small. There are also many other things that affect ripple like ESR of the capacitor and the type, as well as the ripple current of the inductor and other things. So it isn' as easy as increased phases.

Both the UD3H and UD4H have very good VRMs, i would say basically equal in many regards as the UD4H has total heatsink and more inductors, and more high-side FETs, while the UD3H has more true phases and slightly more low-side MOSFETs. In reality the UD4H can move more current. So if each phase could move 30A then the UD3H could move (30x6) 180A and the UD4H could move (8x30) 240A. While each phase of the UD3H would run cooler, the UD4H spreads the load along more phases and has heatsinks. I would call them equal in terms of VRM, same for OC.
Edited by Sin0822 - 1/5/13 at 6:28pm
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post #4460 of 6656
Yea, I understand that. I am just a bit disappointed that Gigabyte's definition of true 8 phase design (they didn't write true 12 phase design for UD5H after all), isn't the same as you use in your vids (phases used from PWM). It's definitely a good board, and priced well too.

Lets say I was hopping UD4H would take a title from UP5 as the cheapest Z77 board with true 8 phase design.
Edited by DeXel - 1/5/13 at 6:42pm
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