Well, for now, it's purring like a cat... Let's hope it holds couple of years, then trash or sell and get a new one! If not, possibly until Ivy gets here... hopefully at least that.

Ryan, you should do following:Set everything to AutoSet memory to XMPSet BCLK to 100.Set PLL to disabledSet multi to 40 (make sure Vcore is on Auto)Boot up, read the VcoreBIOS, change multi to 42x. Check Windows Vcore reading and TempsMulti 44x... etc.After 46x start doing 1-stepsGo until your Vcore reads about 1.45, or whatever you are ready to "risk"...

I did these steps. Results with vcore on AUTO: 40x - 1.332v42x - 1.344v44x - 1.344v (idle) and under IBT load 1.356v45x - boot loop (2 laps) followed by red error message upon entering BIOS that OC settings failed, and all defaults on. Looks like I just got a crappy chip hehe... At 44x and IBT v2.51 I ran the "high" stress test for 5 passes with highest temp 76 (per RealTemp core #3 - it's always my hottest result). So do I set my vcore manually to 1.356 and just run 4.4GHz?

When you hit the multi wall at 45, try turning PLL overvoltage to ON. This is required for many chips to get past 4.5GHz.

Ok, which PLL is that? There's two options.... can you tell me which one from the screens above? -Internal CPU PLL-CPU PLL Do I have to enable #1 to change #2?

Ah ok looking at your shots it seems like you do have it on. Apologies, I missed that as I'm not familiar whit the GB bios. Strange that you're having so much trouble with this though as pretty much every chip should be able to hit at least 4.5 without doing much else other than upping the multi/vcore/LLC. You may well just have to up the voltage to hit this if 1.35 isn't enough. Would be very surprised if you can't hit 4.5 or more on 1.38-1.4v. When it bluescreens, are you getting a stop code of either 101 or 124? Also do the gigabyte boards come with an auto overclocking facility? If so, although they're not great for a final 24/7 setting, they can be good at indicating a rough max multi on your chip. Perhaps run this and see how far it can go, if you do have the option on that board.

Ah ok looking at your shots it seems like you do have it on. Apologies, I missed that as I'm not familiar whit the GB bios. Strange that you're having so much trouble with this though as pretty much every chip should be able to hit at least 4.5 without doing much else other than upping the multi/vcore/LLC. You may well just have to up the voltage to hit this if 1.35 isn't enough. Would be very surprised if you can't hit 4.5 or more on 1.38-1.4v. When it bluescreens, are you getting a stop code of either 101 or 124? Also do the gigabyte boards come with an auto overclocking facility? If so, although they're not great for a final 24/7 setting, they can be good at indicating a rough max multi on your chip. Perhaps run this and see how far it can go, if you do have the option on that board.

Yeah that's why I'm so baffled at this. A lot of you guys are hitting 5+ with a bit of effort... I'm not actually getting BSOD this time. Last time I was, but that was when I was manually setting vcore... What happens is after I save settings to CMOS the PC reboots, then reboots again (boot loop issue), and then finally I can get back into BIOS where it states that OC settings have failed... and it resets to optimized defaults. See, I wondered about the LLC thing, My board only has on and off. It's the UD4 - I think the UD5/7 have multiple levels of LLC. This board does have an automatic OC utility.... easy Tune 6 I think it's called. I may have to try that out. For now I'm at 4.4GHz but with AUTO vcore. It flucuates between 1.344 and 1.356 (load). I did however run Intel burn test with 20 passes at high stress... (runs for about 13 min), and it passed that. Highest temp was 76 on core #3... (avg temps around 72).

There won't be many people who are hitting 5GHz+ on what would be considered a safe voltage (even though that's really an unknown factor at the moment), so I wouldn't use the figures you see in peoples sigs as an aiming point. I had to go through 6 different chips before I found a nice one. While all of the previous 5 would do 4.6/4.7 on 1.38 or under, none would do 4.8. 4.5/4.6 is a realistic aiming point for an average chip on low voltage. It's rather odd that you fail to post at such a low multi, for sure. You could always try working your way down rather than up. Perhaps stick everything on auto other than, LLC on, RAM set to specs, vcore 1.385-1.4, PLL overvoltage on, and a multi of 46/45. If this boots then at least you know it was a vcore issue and you can tweak form there. If not then you've either hit a major multi wall, or there's some other setting that needs adjusting in the GB bios that I'm not familiar with. Would certainly give the auto OC function a try as well as it should get you in the right sort of area that your max multiplier will be. keep an eye on voltages though once it's running, as I know the asus one can go a bit wild when given free reign.

I did these steps. Results with vcore on AUTO: 40x - 1.332v42x - 1.344v44x - 1.344v (idle) and under IBT load 1.356v45x - boot loop (2 laps) followed by red error message upon entering BIOS that OC settings failed, and all defaults on. Looks like I just got a crappy chip hehe... At 44x and IBT v2.51 I ran the "high" stress test for 5 passes with highest temp 76 (per RealTemp core #3 - it's always my hottest result). So do I set my vcore manually to 1.356 and just run 4.4GHz?

Wow, that is a low multi to break up with you.As suggested, maybe try this autooverclocking GB supplies to see if it will hit more than 45x.Internal CPU PLL Overvoltage must be enabled if you can't cross the multiplier-wall.But also try with it disabled. Compared to Asus BIOS, this one has so many options, which are to me completely unknown. But really, it IS possible that you have a chip that hits 44x and thats it. Very rare, but not impossible. My first was hitting 48x and that was it. Until I got the 2nd one, which was stable at 50x.

I think I'll leave it for now. One final question.... the VCORE is still set to Auto. So it flucuates between 1.344 and 1.356v. Should I just set 1.356v in BIOS? Is there harm at leaving it on auto?