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GIGABYTE Z77X Owners/Discussion/Information/Support Thread and Club (UD5H, UD3H, D3H, and ALL) - Page 365

post #3641 of 6656
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Hey guys sorry I was gone for a bit, I was out of town all this week and just got back. Looks like you guys have things under control in here thumb.gif
Quote:
Originally Posted by Jong1 View Post

Actually still not 100% using an offset voltage, so I give up.
Interesting stats though using HWiNFO64:
- CPU power usage under full load (Prime95): 72W
- CPU usage when idle with FIXED 1.26v vCore: 8.5W
So, what am I going to save by trying to get a variable vCore working? 4W maybe, if I'm lucky? I've probably wasted a lifetime of any such savings on this PC just doing the additional stress testing! rolleyes.gif
I am going to stick with a fixed voltage.
The thing is that whatever your vcore, when the CPU drops into idle state the current is MUCH less, and that is why there is a very little difference between manual and offset, other than it might help your temps and power draw a tiny bit, which people like. It also will reduce the vcore, which might help with the life a slight bit(but not much as current is the real killer).

So you can do easy math to figure out a ball park, P=IV or power = current * voltage so 8.5/1.26 =6.75A so at the same speed your current will be the same most likely, and 6.75/0.9v(which is idle voltage)=6.0W so yea you save 2.5W which also directly helps idle temps.
Quote:
Originally Posted by lb_felipe View Post

Can the last Z77X-UD3H's PCIe slot be used by a PCIe x1 sound card like X-Fi TiHD? This slot physically is x16 but electrically it is x4.
Yea it will accept it.
Quote:
Originally Posted by Bluemustang View Post

My UD3H finally arrived today. Now I probably have to wait until monday for my 3570k and ram, and with armored kill and black mesa releasing the anticipation is killer!
One thing I was wondering is, I am going to use crossfire 7970s. Do I really have to use that sata power thing for extra power? Are the 6 and 8 pin cables as well as PCI E lanes not enough? lol
no you prob don't' need it.
Quote:
Originally Posted by gizmo83 View Post

i am at 4.4 ghz. multiplier 44x and bclk 100mhz. pwm set to mid power and llc medium. cpu vtt standard. vcore normal with 0.02 offset. max temp of hottest core is 77° measured with real temp under linx stress test. if i use pwm extreme performance the temps are nearly the same and with cinebench 11.5 the score change by 8.60 to 8.90. i dont't understand if exist a real improvement or there is only a waste of electric energy ..

Yea the power phase setting determines whether the VRM will react based on CPU temperature or react based on current demands. More current=higher performance, more temperature=lower performance. So the PWM has the decide how to react depending on a dozen variables, you have control over this with a digital PWM, and thus it can help performance by setting to extreme performance. If your score is higher than that is pretty impressive.
Quote:
Originally Posted by menia View Post

Hello,
I'm on the fence with choosing between the Z77X-D3H and Z77X-UD5H
My current build:
CPU: I7-3770K
Cooler: Noctua NH-D14
PSU: SeaSonic X760W Gold Modular
GPU: Gigabyte GTX 670 N670OC-2GD
Storage: SSD CrucialM4128GB + HDD WD 1TB
I'm going to get the i7-3770K and I want to have a moderate OC of 4.2Ghz-4.5Ghz.
Now initially I wanted to get the UD3H but it's out of stock and would take longer than I can wait so I need to choose between the UD5H and the D3H.
For my use would you say the D3H would suffice? would it hold long term?
I feel like the UD5H is overkill as I won't have use for the extra ports anyway and it's more expensive.
What do you suggest?
I answered you in the PM, but i think the UD5H would have a better BIOS.
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post #3642 of 6656
Hi Guys I have a UD3H with a 3570k , I have 8GB 1600 9-9-9-24 Ram but I have it running at 1866 10-9-9-24-1T , My problem is that mt system takes long to POST. When I set the Ram to 1600 and Stock Timings I post SLIIGHTLY faster. With 1866 it take 13-14 Seconds to pass the Boot Logo. 25 seconds to Desktop. Everything else except RAM is stock.

BIOS F17 (Latest)

Other Hardware:
2x 6870
1 Corsair Force 3 60GB(Connected to 6GB/s Port)
1 Seagate 500 GB 7200.12
1 LG DVD Burner

Thanks in advance
Edited by sl4y3r - 9/16/12 at 12:02am
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S74R SL4Y3R
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post #3643 of 6656
Quote:
Originally Posted by Sin0822 View Post

Hey guys sorry I was gone for a bit, I was out of town all this week and just got back. Looks like you guys have things under control in here thumb.gif
The thing is that whatever your vcore, when the CPU drops into idle state the current is MUCH less, and that is why there is a very little difference between manual and offset, other than it might help your temps and power draw a tiny bit, which people like. It also will reduce the vcore, which might help with the life a slight bit(but not much as current is the real killer).
So you can do easy math to figure out a ball park, P=IV or power = current * voltage so 8.5/1.26 =6.75A so at the same speed your current will be the same most likely, and 6.75/0.9v(which is idle voltage)=6.0W so yea you save 2.5W which also directly helps idle temps.
Thanks Sin. My idle core temps are <=30C so I'm pretty happy. I guess it gets a bit more complex as the PC comes out of idle, the vcore difference between offset and fixed starts to drop, but the current rises, but I doubt the difference in power draw is ever that significant.

Still, much as I say I am happy with fixed vcore (and I am) the curious side of me is really bugged by why it seems impossible to get this system stable with offset voltage. I have tried all different phase control, LLC and voltage response settings, reduced the overclock to 4.2, even slacked off memory timings. It really doesn't seem to like variable vcore. About all I can think of, other than a MB issue, is the power supply is not up to it, but that is a Corsair TX, so really should have good enough response and it is fine with a fixed voltage.

Any thoughts?
Edited by Jong1 - 9/16/12 at 4:01am
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post #3644 of 6656
Quote:
Originally Posted by Sin0822 View Post

All the new GB boards have the purple caps, they are really interchangeable, but if you have blue it would indicate your UD5H was part of the first big batch sent out to vendors. All my UD5Hs before launch had blue caps, i got 1 later launch with purple.

I have one with blue caps and space between dimms.

Are there any changes between these two revisions besides cosmetic ones?
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post #3645 of 6656
Quote:
Originally Posted by DeXel View Post

I have one with blue caps and space between dimms.
Are there any changes between these two revisions besides cosmetic ones?

Yes I'd like to know this as well.
post #3646 of 6656
Sin, I'm having trouble going past 2200mhz with any kind of ram, when previously I could boot at 2400mhz no problem. I've tested both my samsung green's, two other samsung kits and a gskill ripjaws cl7-7-7-24 1.65v kit so far. I'm on f14 bios now...
I think I'll flash f5 on my secondary bios to see if that improves the memory oc. I flashed f14 cause it was the last stable bios, and had the supposed "samsung fix" for my green 30nm ram sticks.
I'm a bit dissapointed with this bios, my same sticks can do 2333mhz cl10 on a fx8120, and with the same cpu they did 2400 cl10 before flashing to f14.
What else do you suggest?
I'm pretty sure they ram sticks are in slots 1 and 2 for dual channel config A, and I've tweaked sub timings according to your guides, and tweaked from there till I found my best stable setting at 2200mhz cl10-11-11-26-1T @ 1.65v.
Thanks in advance! I enjoy reading your guides and following your threads. My buddy has had great success with your bulldozer oc guide btw, props for that too. thumb.gif
post #3647 of 6656
Quote:
Originally Posted by ivanlabrie View Post

Sin, I'm having trouble going past 2200mhz with any kind of ram, when previously I could boot at 2400mhz no problem. I've tested both my samsung green's, two other samsung kits and a gskill ripjaws cl7-7-7-24 1.65v kit so far. I'm on f14 bios now...
I think I'll flash f5 on my secondary bios to see if that improves the memory oc. I flashed f14 cause it was the last stable bios, and had the supposed "samsung fix" for my green 30nm ram sticks.
I'm a bit dissapointed with this bios, my same sticks can do 2333mhz cl10 on a fx8120, and with the same cpu they did 2400 cl10 before flashing to f14.
What else do you suggest?
I'm pretty sure they ram sticks are in slots 1 and 2 for dual channel config A, and I've tweaked sub timings according to your guides, and tweaked from there till I found my best stable setting at 2200mhz cl10-11-11-26-1T @ 1.65v.
Thanks in advance! I enjoy reading your guides and following your threads. My buddy has had great success with your bulldozer oc guide btw, props for that too. thumb.gif

Even I feel there are RAM issues with F17 on the UD3H. I posted earlier that my UD3H takes 14 Seconds to POST. It takes a good 6 seconts from the time i hit the power button to the time my monitor detects a video signal.

Any one else faces that ?

It POST slightly faster when my RAM is at Stock.
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S74R SL4Y3R
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post #3648 of 6656
Quote:
Originally Posted by sl4y3r View Post

Even I feel there are RAM issues with F17 on the UD3H. I posted earlier that my UD3H takes 14 Seconds to POST. It takes a good 6 seconts from the time i hit the power button to the time my monitor detects a video signal.
Any one else faces that ?
It POST slightly faster when my RAM is at Stock.

That sounds like ram instability or compatibility issues. I had that same behaviour when I plugged in some older gskill cl7 2gb sticks to test them.
When I clocked them higher it took the pc longer to boot, and tweak launcher would read strange timings, different than the ones in cpu-z, which were also different from the ones I set in the bios manually.
There was an xmp profile but the timings were all blank.

I just tried overclocking my ram with the secondary bios (which is f8 atm) and I got stuck too, I think f14 is even better, it seems.
post #3649 of 6656
Quote:
Originally Posted by ivanlabrie View Post

That sounds like ram instability or compatibility issues. I had that same behaviour when I plugged in some older gskill cl7 2gb sticks to test them.
When I clocked them higher it took the pc longer to boot, and tweak launcher would read strange timings, different than the ones in cpu-z, which were also different from the ones I set in the bios manually.
There was an xmp profile but the timings were all blank.
I just tried overclocking my ram with the secondary bios (which is f8 atm) and I got stuck too, I think f14 is even better, it seems.

The System is stable and the boot times are fast once it crosses the Gigabyte logo, But crossing the GB logo is what im getting long wait times. Thanks for your reply though.
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S74R SL4Y3R
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post #3650 of 6656
Hello guys just received my UD5H and I am amazed by the look of her heatsinks heart.gif
I am a bit stressed though cause when i opened the amazon cartoon i found out that the motherboard box wasn't nylon wrapped nor did it have a seal of any kind (i.e stickers), is it normal? I checked the CPU pins and they seemed ok to me.

has anybody used the HP_PWR connector to light up Raystorm? That connector seems proprietary.
It seems to be a clever feature but the documentation is poor not to mention that is easier to see an oompa loompa than a connector of that shape.

And a last one, does anyone has Corsair Dominator Platinum 1866MHz . Its not in the QVL and they have told me horror stories about compatibility issues, so am a bit sceptic about proceeding to buy them (gaming PC).

Sorry for the question attack and excuse my ignorance smile.gif
Edited by kanaks - 9/18/12 at 12:09pm
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