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post #291 of 67692
Quote:
Originally Posted by auraofjason View Post

Yeah that's basically what I did. I tried at first 4.5ghz and it needed 1.375v in bios to boot, and 1.45v in bios (1.4v in windows) to be stable. Now for 4.6ghz I need 1.525v in bios (1.46v in windows). Maybe I just got a combination of a bad chip and bad chipset/bios lol.

that jump from needing 1.45v in bios to 1.525v in bios is ridiculous for 0.1ghz difference. i would now say it's your bios. i wouldnt say you got a bad chip though, you SHOULD be able to get at least 5ghz from it. you may just need a more solid foundation (motherboard) wink.gif
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post #292 of 67692
Quote:
Originally Posted by Red1776 View Post

Quote:
Originally Posted by mystiksinner View Post

I've heard a lot about the Gigabyte 990fxa-UD3 but how are the UD7's? think they might overclock better than the UD3?

I am using the UD7 for both the 8150 and now the 8350 and as long as you make sure you get the rev 1.1 ( the one with LLC) they are terrific OC's

Here is my review of the UD7 if you care to have a look smile.gif

http://www.overclockersclub.com/reviews/gigabyte_990fxaud7/

and my review of the FX-8350 using the UD7

http://www.overclockersclub.com/reviews/gigabyte_990fxaud7/

I'm suffering right now because I have a rev. 1.0 990FXA-UD5. mad.gif I am considering buying a newer revision of the 990FXA-UD3, since it seems to be pretty much the same as the UD5, just fewer PCIe slots, which I only need two of anyway.
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post #293 of 67692
Quote:
For the the folks with revision 1.0 Gigabyte boards with out LLC. You do not need LLC to get good overclocks. LLC is nothing special, the only thing it does it boost your voltage under cpu load to counter Voltage Drop. Nothing else, you can also combat voltage drop by setting the value higher in bios, with out LLC. However please be advised if your not using cool and quiet, your processor will not experience Voltage drop at idle. Thus Be sure to run Cool and quiet, so when your cpu is not loaded your voltage will not be higher than it should be. Cool and Quiet does nothing to effect a stable overclock, don't let people fool you into thinking you must turn it off to get a higher clock rate. In other words use cool and quiet, your room will be cooler, your power bill will be lower, and it will not effect your overclock!

I beg to differ regarding the LLC. LLC has six settings from auto-low-medium-high-ultra high-and extreme. Each setting has a different characteristics about it. For example high holds a straight level voltage at what you set. ultra high will bump the voltage under loads slightly, but then holds a straight line on voltage. You can use the one that suits you and your overclock, however there is a very big difference in performance and voltage needed to obtain any particular OC. The following screen cap is from my review comparing the UD7 rev 1.0 vs the Rev 1.1. the first shot is with no LLC and you can see how the Voltage fluctuates under load. In fact the voltage in the first chart was set at 1.52v and dropped so quickly when I started the stress test it missed the initial drop on the chart, but you can see the ripple and drop to below 1.43v. It actually would drop down to 1.39v when set at 1.52v! The next two charts are with LLC set to Ultra in this case. you can see the tight parameters it keeps on the voltage on both the Vcore and the 12v rail, and gone is the ripple which is not good for the stability or life of the CPU. Set to extreme setting it merely held the voltage right at the set voltage and niether added or dropped voltage.The difference with this CPU (the FX-8150) in this case was a max OC of 4.7GHz @ 1.556 without LLC with UD7rev 1.0 whereas I was able to get a stable 5.0GHz @ 1.488-1.504v depending on which software or BIOS reading you went by ( with LLC and the rev 1.1 UD7. So besides holding the line and keeping the voltage steady and precise, it also takes less and gets rid of the voltage fluctuation.

The charts can be seen here:

http://www.overclockersclub.com/reviews/gigabyte_990fxaud7/6.htm
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post #294 of 67692
Quote:
Originally Posted by ElectroGeek007 View Post

I'm suffering right now because I have a rev. 1.0 990FXA-UD5. mad.gif I am considering buying a newer revision of the 990FXA-UD3, since it seems to be pretty much the same as the UD5, just fewer PCIe slots, which I only need two of anyway.

by fewer you mean 4 instead of 5 lol. sorry to hear that though sadsmiley.gif i have never felt okay when i've had a motherboard and then they release a new revision of it. when they released the CHV Formula Z i kinda freaked out - all that time between releases... i still wonder what the exact differences are.
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post #295 of 67692
Thread Starter 
Quote:
Originally Posted by Mr357 View Post

Someone needs to make a Piledriver OC guide pronto!

As soon as we can figure one out tongue.gif
Quote:
Originally Posted by Raven.7 View Post

I wouldn't be shocked if it's the motherboard's fault, I'm pretty sure only the 990 chipsets were meant for Bulldozer onwards. Did you get a BIOS update by any chance?

900-series in general.
Quote:
Originally Posted by auraofjason View Post

Yeah these gigabyte mobos have horrible vdroop. I say 1.46v since that's what it says on cpu-z load, but in the bios I'm putting 1.525 lol.

Correction; the ones without LLC have horrible Vdroop. aka any rev 1.0.
Quote:
Originally Posted by B4rr3L Rid3R View Post

subscribing

You can do that without posting with the subscribe button at the top of each page.
Quote:
Originally Posted by ebduncan View Post

fYou do not need LLC to get good overclocks. LLC is nothing special, the only thing it does it boost your voltage under cpu load to counter Voltage Drop.

Ah, I remember when i still thought that.

Actually, Gigabyte LLC has 5 settings besides auto.

Regular: let voltage drop under load.
Normal: Let voltage drop a little bit under load.
High: Hold voltage steady under load.
Very high: Add a little voltage under load.
Extreme: Add lots of voltage under load.

Even with my Ph II, setting it to High solidified my 4.3 OC.

That whole thing is full of errors. More RAM does not hold back OC (aside from extra temps), and if it does, you're screwed over on low timings too (the reason it would hold back RAM OC is if one stick isnt as good as the others, lowest common denominator), It works both ways. The NB is fine completely unsupervised. You can use almost any voltage you want if you can keep the temps in check. C'n'Q is almost always turned off, along with any other power saving features and turbo to ensure stability, not higher clocks. This is because for anyone who has used Overdrive, jumping around speeds is the surest way to get yourself a bluescreen.
Quote:
Originally Posted by auraofjason View Post

Yeah, the ga-970a-ud3 has the same exact vrm system as the ga-990fxa-ud3 (8+2 heatinked, same exact heatsinks in fact).

You are correct. The 970A-UD3 is one hell of a budge board. Add a few PCI-e lanes, paint it black, and you got yourself a 990FXA.
Quote:
Originally Posted by ebduncan View Post

the heatsinks are different, but yes the vrms are the same.

No they aren't. Learn your Giga boards man.
Quote:
Originally Posted by Red1776 View Post

Warning: Spoiler! (Click to show)
I beg to differ regarding the LLC. LLC has six settings from auto-low-medium-high-ultra high-and extreme. Each setting has a different characteristics about it. For example high holds a straight level voltage at what you set. ultra high will bump the voltage under loads slightly, but then holds a straight line on voltage. You can use the one that suits you and your overclock, however there is a very big difference in performance and voltage needed to obtain any particular OC. The following screen cap is from my review comparing the UD7 rev 1.0 vs the Rev 1.1. the first shot is with no LLC and you can see how the Voltage fluctuates under load. In fact the voltage in the first chart was set at 1.52v and dropped so quickly when I started the stress test it missed the initial drop on the chart, but you can see the ripple and drop to below 1.43v. It actually would drop down to 1.39v when set at 1.52v! The next two charts are with LLC set to Ultra in this case. you can see the tight parameters it keeps on the voltage on both the Vcore and the 12v rail, and gone is the ripple which is not good for the stability or life of the CPU. Set to extreme setting it merely held the voltage right at the set voltage and niether added or dropped voltage.The difference with this CPU (the FX-8150) in this case was a max OC of 4.7GHz @ 1.556 without LLC with UD7rev 1.0 whereas I was able to get a stable 5.0GHz @ 1.488-1.504v depending on which software or BIOS reading you went by ( with LLC and the rev 1.1 UD7. So besides holding the line and keeping the voltage steady and precise, it also takes less and gets rid of the voltage fluctuation.
The charts can be seen here:
http://www.overclockersclub.com/reviews/gigabyte_990fxaud7/6.htm

We have a winner! Though I'm not suprised. tongue.gif
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post #296 of 67692
Quote:
Originally Posted by ElectroGeek007 View Post

I'm suffering right now because I have a rev. 1.0 990FXA-UD5. mad.gif I am considering buying a newer revision of the 990FXA-UD3, since it seems to be pretty much the same as the UD5, just fewer PCIe slots, which I only need two of anyway.

I'm about to flip on the MSi board, I completely despise this Gigabyte thing. Worst purchase I've made yet.
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post #297 of 67692
Does anyone know how good AsRock's 990FX boards are? I know the make good Intel boards, but I have no experience regarding AMDs.
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post #298 of 67692
Quote:
Originally Posted by KyadCK View Post


Correction; the ones without LLC have horrible Vdroop. aka any rev 1.0.
Actually my ga-970a-ud3 rev 1.1 has llc but it's stupid and only lets me choose extreme or regular.. basically if you set 1.5v in bios you get to choose: "in loads do you want 1.4v with regular or 1.6v on extreme in windows? While idle, do you want 1.6v with regular or 1.4v with extreme?"
post #299 of 67692
Thread Starter 
Quote:
Originally Posted by auraofjason View Post

Actually my ga-970a-ud3 rev 1.1 has llc but it's stupid and only lets me choose extreme or regular.. basically if you set 1.5v in bios you get to choose: "in loads do you want 1.4v with regular or 1.6v on extreme in windows? While idle, do you want 1.6v with regular or 1.4v with extreme?"

.... THAT sucks. Call up gigabyte and complain, because that can't be normal. BIOS issue?
Quote:
Originally Posted by Raven.7 View Post

I'm about to flip on the MSi board, I completely despise this Gigabyte thing. Worst purchase I've made yet.

Or you could buy from someone who's boards don't have a history of exploding, like Asus. Going from Giga to MSI is LOL, although if you're stuck on a 1.0, then that sucks.
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post #300 of 67692
I already called gigabyte and complained about the lack of LLC in Rev1.0 boards, they told me screw off and go buy Rev 1.1.

I'm about to pull the trigger on this: http://www.asrock.com/mb/AMD/990FX%20Extreme4/

Thoughts?
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