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Haswell Overclocking Guide [With Statistics] - Page 246

post #2451 of 19540
Quote:
Originally Posted by skyn3t View Post

I had finish xut and aida so far so good and some gaming session bot crash here. But the guy with intel box showing off a few post above he is very stable with his camera lol

thumb.gifthumb.gif lol, sorry to get off topic there. I'm just getting anxious, my board comes in tomorrow. I was 100% AMD until my board died. So should be interesting when I start clocking this fresh new 4770k.
post #2452 of 19540
Quote:
Originally Posted by bond32 View Post

thumb.gifthumb.gif lol, sorry to get off topic there. I'm just getting anxious, my board comes in tomorrow. I was 100% AMD until my board died. So should be interesting when I start clocking this fresh new 4770k.

Yah I can see that but still 50% that needs to be changed. Do I need to te what? biggrin.gif

You cool bro. Enjoy your new mobo and cpu. Did you read how pain it to get this chip OC'd. If not you stil have couple hours of reading. thumb.gif
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post #2453 of 19540
So heres something I have to ask about.
When I had my CPU set to 3.8GHz, BIOS set the voltage to 1.134 straight away. This is at auto.

So how much can BIOS be trusted? Can you trust it enough, so you know that you really need 1.134 vcore, to run 3.8GHz?
And so if I set it to 4Ghz, it will give me a new reading. And that new readin, is the minimum vcore the CPU needs to run at 4GHz.
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post #2454 of 19540
Thread Starter 
Quote:
Originally Posted by bond32 View Post

Why won't it work?!?!?

 

I'm not sure, are you sure you that motherboard is compatible with the CPU?

Quote:
Originally Posted by Clexzor View Post

Adding fans to the mobo will not increase the required overclock to increase in any way...

Also Darkwizzie have some interesting results I found after yesterday messing around on day off..im currently running 4.9ghz at 1.425v with uncore at 39x 1.15x since I found 0% difference wth uncore at 44x...anyways I dropped the vccin all the way down to 1.7v and its been running great lol been on bf3 and even did a quick cinebench, 3dmark etc and shaved off about 3-5c on overall temps for anyone who would like to try dropping the vccin/vrin all the way down to 1.65-1.75v

Depends on what benchmark you're running. If you're gaming probably zero difference, if you're doing chess or maybe Cinebench you can find a small difference.

 

Quote:
Originally Posted by ChrisB17 View Post

So reading through this thread. Has anyone got a fully stable overclock yet? headscratch.gif

 

Yah.

My overclock is stable if I drop 4.6ghz to 4.5ghz. But I'm a butthead and I want 4.6ghz, lol. I recall doing Prime and all that for 4.5.

Quote:
Originally Posted by Doug2507 View Post

Username: Doug2507
CPU Model: 4770K
Core Multiplier: 46x 100Mhz
CPU VID: 1.19v
Vcore: 1.21
Uncore Multiplier: x39
Uncore Voltage: Auto
Cooling Solution: Air (de-lid)
Stability Test: XTU - 3hrs 15mins and counting
Batch Number: L310B487
Ram Speed: 1333Mhz

*VCCIN set to 1.9v, HWM reports 1.9v.

Just put this rig together the other day and starting to o/c the cpu. Ran 4hr's XTU with 4.6Ghz@1.2vcore, now running @1.19vcore working back as 4.6Ghz will be my fall back. Ran P95 (27.9) for 2 hours@1.2vcore before deciding to do it all through XTU.

It boots no problem with 4.8Ghz@1.25vcore with mem at XMP so reckon it may have potential. 4.7Ghz should be fine temp wise on air, 4.8Ghz might be pushing it but we'll see. I'll be going W/C once i've done it all on air as i need to give my 780's a little more cooling.

RAM is 2x8GB G.Skill TridentX 2400 but screwed back to 1333Mhz@1.5v till i find max stable CPU O/C.

No uncore tuning yet either.

I'll update once i've got 4.6Ghz fully tuned then again on max O/C.



*EDIT* Any tips on posting a better quality image of the screenshot? Seems a little blurred when opened. Used Snipping Tool then Photobucket.

Results charted, picture verification for XTU 3 hr. 
Please use a bigger picture next time, that was really blurry when trying to read the text.

 

Quote:
Originally Posted by wendigo4700 View Post

So heres something I have to ask about.
When I had my CPU set to 3.8GHz, BIOS set the voltage to 1.134 straight away. This is at auto.

So how much can BIOS be trusted? Can you trust it enough, so you know that you really need 1.134 vcore, to run 3.8GHz?
And so if I set it to 4Ghz, it will give me a new reading. And that new readin, is the minimum vcore the CPU needs to run at 4GHz.

I don't trust the motherboard. It may be a starting point but there's no way mobo autorules will find minimum voltage for a CPU, whether it's for booting in or under stress.

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Celapaleis (2013)
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14xEK ACF (Compression Fittings) EK x4 250 (v2) Distilled Water + PT Nuke (Copper Sulphate) 24x140mm Silent Wings 3 
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post #2455 of 19540
Quote:
Originally Posted by ChrisB17 View Post

So reading through this thread. Has anyone got a fully stable overclock yet? headscratch.gif

I consider myself stable at 4.7GHz core, 4.5Ghz cache with a 1.275v adaptive voltage for each. Min cache ratio is at 8x, DDR is at 2133 CL9 with 1.5v, VRin is set to 1.8v. I have completed both a 3 hour XTU stress test and a 7 hour XTU stress test. Over the past month, I've been playing Planetside 2, Firefall, CS:S, TF2, and Crysis 3 without a single BSOD so far.

4.8GHz @ 1.34 adaptive is also stable, but I don't like how it jumps to 1.45v for AVX so I'm staying at 4.7GHz.

I need to rerun XTU with HwMonitor to get a proper screenshot.
post #2456 of 19540
Yeah, no idea why. Snipping tool must have resized it i guess! I'll make sure the next one is spot on.thumb.gif
post #2457 of 19540
My 4.5 profile with ht is stable, no whea's
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post #2458 of 19540
post #2459 of 19540
Quote:
Originally Posted by Cyro999 View Post

Any reason you're lowering VRIN especially that far wih 1.425vcore?

For one it shaves off of temps by 3-5c also lowering is always better esp for the mobo less heat...I have a mpower max designed for low air flow but a lot of folks don't so stressing and heating the mobo will kill it over time. Anyways a lot of early test showed the better the chip the lower the input voltage needed thus less heat.

Early testing for me showed that I needed high input voltage however restesting this is not the case in fact I found anything under 5ghz stable with as low as 1.65v
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post #2460 of 19540
Quote:
Originally Posted by Clexzor View Post

Also Darkwizzie have some interesting results I found after yesterday messing around on day off..im currently running 4.9ghz at 1.425v with uncore at 39x 1.15x since I found 0% difference wth uncore at 44x...
In AVX2 you will. I pull on average 4Watt more from the wall when i comapred 42 uncore against 44, i also got on average 0.6 less gflops when running 42 uncore.

Furthermore, by playing with kill a watt, which is suprisingly close to HWinfo values on a bare cpu system with 1ssd, i found a limit of my chip to be stable at, which is little over 150w. To test this theory i bumped my 4.5 overclock to 1:1 with higher mem just to exceed 150w and bsod in linpack in 20min. This explains why i can do superpi & cinebench @ 4.7 all day long as the wattage doesn't come close to my 4.5 @ full AVX2 draw.
Anyhow, I stopped beating this dead horse. Clearly, i cant keep 4.6 under 150w to be AVX2 stable and yet i cant give more volts due to power limit of my chip.
AVX2 stability was my goal, so dont judge me:D
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