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GIGABYTE Z77X Owners/Discussion/Information/Support Thread and Club (UD5H, UD3H, D3H, and ALL) - Page 130

post #1291 of 6656
Quote:
Originally Posted by jayhay View Post

The link is to a hardware related matter, not bios. Still wondering if Sin has any thoughts.

So the competition has identified that Gigabyte does something different. Anonymous engineer as the source. Hmmmm.
I've not had, or heard of any issues overclocking with this board.
post #1292 of 6656
But does anyone have those crooked capacitors?
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post #1293 of 6656
Quote:
Originally Posted by samwiches View Post

But does anyone have those crooked capacitors?

I think the article is saying that the Gigabyte board doesn't have capacitors at all on the back. Apparently they're used for LLC.
post #1294 of 6656
New member here. I just built a new rig with the UD5H and Ivy Bridge 3770K last week, and I've skimmed through all 129 pages of this thread over the past couple of days. There is so much great information. Thanks to Sin for regularly monitoring this thread and providing technical support. I found the Ivy Bridge overclocking guide to be especially helpful as well.

I have my 3770K running at 4.4 GHz using DVID of -1.5 mV. CPU-Z reports Vcore of 1.188 under full load. My Prime 95 load temps hit 87C on one core while the other 3 are 80-81C. I'm using a Cooler Master Hyper 212 Evo cooler. Unfortunately it seems I need to use a positive voltage offset (DVID) in order to stabilize 4.5 GHz, and then my load temps reach into the low 90s. I'm not really comfortable operating in the 90s, so I'm hoping to be able to reduce temperatures somehow. I haven't played with the LLC or CPU PLL as mentioned here, but that will be my next step. I'm also not sure if I have the IGP disabled or not. Anything else you can recommend (aside from better cooling) to try to stabilize things while keeping temperatures in check? I can always try reseating the Evo, but I don't think that's the problem.
Edited by KillrBuckeye - 5/17/12 at 1:44pm
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post #1295 of 6656
Quote:
Originally Posted by samwiches View Post

But does anyone have those crooked capacitors?
I use those sort of capacitors for work - but I'm not going to bother fitting any to my Z77X-UD5H just yet biggrin.gif

For those who are interested:
It is usually "good practice" to put capacitors like this on power supply signals to chips, especially processors.
Processors don't consume current smoothly; it tends to be drawn in gulps and spikes, with these "current transients" moving up and down incredibly fast. Now, when there's a brief high peak of current, the voltage at the chip will tend to drop a bit because of the electrical resistance in the circuit tracks. As the current falls, the voltage will rise. Not a good idea.
In principle, the "load line compensation" is designed to compensate for this fluctuation in current and keep the voltage actually at the chip steady, but in practice it can never react fast enough to keep pace with the very fastest changes of current.
Are you with me so far? Good.
So, this is where capacitors are useful. Think of them like little reserve buckets of current right at the chip, ready to supplement the power supply and provide the extra little transients of current when they are needed, smoothing out the current changes, and helping the load line compensation to cope.
I believe that the intel processor chips themselves actually have some capacitors integrated into the chip package. This is great, because that's exactly where they are most effective. Of course, more fitted on the board close to the processor should not do any harm.
Now, if you've got a really clever power supply on the motherboard than can react very quickly to the changes in current, the "belt and braces" capacitors fitted to the motherboard are probably less important. The digital power supplies that Gigabyte are using should have a very fast response to transient current changes ("transient load regulation"), so may well not need the extra capacitors. The fact that there are circuit board "pads" in place where capacitors could be fitted shows that Gigabyte considered the possibility of them being needed, but ulimately decided not to fit them. The cost saving is not much, so that's probably not the reason.
The heavyweight copper used by Gigabyte for their circuit board also reduces the droop in voltage with current transients, again making the extra capacitors less important.

Summary: Gigabyte are using a state-of-the-art onboard power supply. If the motherboard works well without dozens of extra capacitors by the processor, then leaving them out should only make it more reliable. A less experienced designer might fit them anyway "just in case".
Edited by fasty - 5/17/12 at 2:33pm
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post #1296 of 6656
Quote:
Originally Posted by barkeater View Post

So the competition has identified that Gigabyte does something different. Anonymous engineer as the source. Hmmmm.
I've not had, or heard of any issues overclocking with this board.

It's a bunch of poppycock... These boards overclock incredibly well. Hell, Sin has gotten a chip to over 6ghz. I'm sitting at 5ghz easy. I don't understand how anyone can say these boards have an overclocking problem. Any amount of research into third party reviews would indicate that the article linked was bogus.
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post #1297 of 6656
Thanks for taking time to explain that fasty.
post #1298 of 6656
Quote:
Originally Posted by PMantis24 View Post

Quote:
Originally Posted by samwiches View Post

But does anyone have those crooked capacitors?

I think the article is saying that the Gigabyte board doesn't have capacitors at all on the back. Apparently they're used for LLC.

OMGZ... when I paid for my motherboard I expected to find tiny capacitors behind the socket. Sin what the hell???


lachen.gif
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post #1299 of 6656
fasty, thanks a lot for that very informative and educational post thumb.gif

So, just like a few people pointed out in that article, probably mudslinging by one of their competitors.
post #1300 of 6656
Quote:
Originally Posted by brothergc View Post

well I spent a day reading thru (127 pgs) of this forum and am impressed , so much , that I decided on buying a GA-Z77X-UD3H . I was going to buy a asus z77 sabertooth , but 240 bucks is outragous IMO . You guys sold me . While I am no overclocker my idea for this build a stock clock stable system , a everday system that runs like the wind . nervous about my choice as I am not all that building computers but do have manyunder my belt . I be running a core I3 sandy to start and updating to f9 bios asap , so any other tips will be apreciated thumb.gif

Update:
Holy Fast shipping batman ! I just pushed the button on this board from amazon Thrusday morn, and in 3 hrs UPS has it in hand and sceduled for delivery tomorrow , this friday ! And no I did not pay for overnight shipping, in fact I opted to free super saver shipping . Beat that New egg ! thumb.gif
Aslo my 2x4gb Cricial tactial tracer 1600mhz arrived today. geez must wait till my 3750 comes in , and my copy of win 7 64 pro. Till then I be testing the board with good old xp pro
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