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Haswell Overclocking Guide [With Statistics] - Page 492

post #4911 of 19539
Thread Starter 

Tests are not done but I can tell you right now, going from 4.2 to 3.4 uncore on average so far decreased performance by an average of 1% in benchmarks. Which to your credit is more than I estimated. So 800mhz = 1% difference.

 

Bear in mind Shinanegans, that my stance was, don't expect noticeable improvements in real world applications with uncore overclocks. On the other hand I ackowledge that an overclock of uncore when taken to the extreme can make a notcieable difference... if you record the Cinebench score and compare it side by side. But what if I render two identical videos, one with OC uncore, one with uncore at 3.4? I won't realize OCed uncore is 1% faster without looking at the timer.

 

Also don't forget, Haswell autoOCs from 3.4 to 3.8ghz. That means my current setting is actually LOWER than "stock". So to see how much of a diference uncore OC makes, you have to divide that number by 2. (3.8 vs 4.2).  Oh yeah, and I always recognized some people care about such minute changes in uncore. Therefore I added it as a step AFTER OCing core clock. You can easily get Uncore to 4.0 without any Vring change most of the time. But chasing higher uncore OCs? After 4.0? After 4.2? Higher Vring, may not be safe, for an OC of what, 200mhz? You'd have to take 1% and divide the performance change on average by 4. So that's 0.25%.

 

Right.

Oh yea, and Enemy Territory is a CPU bottlenecked game. Although it picked up almost 1% performance increase, note that the minimum FPS increased as I decreased uncore to stock. That and the narrow margin of victory shows there is a decently sizable margin of error, and that the performance change may be inside that margin. What happens when we take this to BF3, for example? Or Skyrim? Which are not walking CPU benchmarks like the other tests are.

 

Cinebench shows increase in performance of 0.0086% with 800mhz increase. That's 0.001% increase per 100mhz uncore increase. On a CPU benchmark.

 

Superpi picks up 1% change IIRC.

 

More data to come...


Edited by Darkwizzie - 11/2/13 at 4:38pm
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post #4912 of 19539
Quote:
Originally Posted by Darkwizzie View Post

Can you test the drive on some other computer to make sure the drive is working? So far I've had one guy say too many Bsods caused his computer to bsod more often on his overclocks, but no reports of a drive going missing. He said he was fixed by a reformat. But that would is an OS problem.

Well, I believe it's official. Hard drive dead. I booted up old build, cleaned and updated it (haven't turned it on in a month). Hooked up my 2 month old hard drive and what ya know. System ran the usual test then Error code 75 on the mobo. There is no OS on that drive, took drive back out, system booted up fine. Turned on current build with just the SSD, works perfectly. Actually seems faster now too. So other than using it in 2 different systems and doesn't work on either, has to be corrupt severely or dead. I don't know of any other way to trouble shoot it. Looks like I'll get getting another hdd. Another $75 down the drain.
post #4913 of 19539
Oha I just got a BSOD with Bluescreen BCCode 124 whilst playing BF4
any idea what that could be?

I'm overclocked to 46x / 1.26vCore / 1.15vRing / 1.8VRIN
x264 passed, prime ran like for 3:52...
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post #4914 of 19539
Quote:
Originally Posted by Gero2013 View Post

Oha I just got a BSOD with Bluescreen BCCode 124 whilst playing BF4
any idea what that could be?

I'm overclocked to 46x / 1.26vCore / 1.15vRing / 1.8VRIN
x264 passed, prime ran like for 3:52...

what's your cache multiplier at? I've been wrestling with that one for a while now.
post #4915 of 19539
Quote:
Originally Posted by ooostephen View Post

what's your cache multiplier at? I've been wrestling with that one for a while now.

That should be good for min x40.
post #4916 of 19539
Quote:
Originally Posted by ooostephen View Post

what's your cache multiplier at? I've been wrestling with that one for a while now.

you mean uncore?
It's at stock (35x)
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post #4917 of 19539
I know there were comments saying BF4 was broken and it's got issues, no doubt. But there are enough people saying that their x264 stable clocks aren't stable in BF4 IMO.

Then there's also the difference in how the game falls over. When I'm stable, the executable might die, the screen might go black, GPU driver falling over; it won't just hard-lock. Anyhow, I'm back to trying x44 Multi now but kept cache @ x43 instead of x44 (I know that's missing specifics but it's the same settings as x264 stable x44/x44 which failed in BF4 but now with x43 cache).
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post #4918 of 19539
Quote:
Originally Posted by error-id10t View Post

I know there were comments saying BF4 was broken and it's got issues, no doubt. But there are enough people saying that their x264 stable clocks aren't stable in BF4 IMO.

Then there's also the difference in how the game falls over. When I'm stable, the executable might die, the screen might go black, GPU driver falling over; it won't just hard-lock. Anyhow, I'm back to trying x44 Multi now but kept cache @ x43 instead of x44 (I know that's missing specifics but it's the same settings as x264 stable x44/x44 which failed in BF4 but now with x43 cache).

I've passed x264, crashed in BF4 and then went and played BF3 for hours. It's a buggy mess. Granted, some people might have actual stability problems. My suggestion is go play an intense game that has been out for awhile to see if you're game stable.
post #4919 of 19539
Quote:
Originally Posted by Gero2013 View Post

you mean uncore?
It's at stock (35x)

Ah, right, uncore is the correct term. I'm using Asus jargon. 35x seems low. This whole Haswell thing has me cursing a lot. Stable one moment, crashing the next...ugh!
post #4920 of 19539
Thread Starter 
Quote:
Originally Posted by error-id10t View Post

I know there were comments saying BF4 was broken and it's got issues, no doubt. But there are enough people saying that their x264 stable clocks aren't stable in BF4 IMO.

Then there's also the difference in how the game falls over. When I'm stable, the executable might die, the screen might go black, GPU driver falling over; it won't just hard-lock. Anyhow, I'm back to trying x44 Multi now but kept cache @ x43 instead of x44 (I know that's missing specifics but it's the same settings as x264 stable x44/x44 which failed in BF4 but now with x43 cache).

There's no way at all to know for sure whether it's the OC failure or the game failing. It's kind of a coincidence for the game the x264 passed setting to only fail at BF4 so far. Until it's proven to crash on BF3 or some other game, then no, I'm discounting reports of BF4 crashing. (See my reply right after the quote under this). On top of that, the original x264 crash comment was about uncore OC, so even if it were true it'd hold x264 as a bad uncore stress. But I took off that line from my guide because it's not proven.

 

BF3 is still no slouch. I forgot who crashed with uncore OC, but try BF3, same settings, and report back please.

 

Quote:
Originally Posted by jameyscott View Post


I've passed x264, crashed in BF4 and then went and played BF3 for hours. It's a buggy mess. Granted, some people might have actual stability problems. My suggestion is go play an intense game that has been out for awhile to see if you're game stable.

Agreed. I was watching BF4 tournament and in the comments people are like 'Wow, look they didn't crash!'... So yeah, use BF3 or something. BF3 is a great test, and you could've gotten it for super cheap at the Humble Bundle.

 

Quote:
Originally Posted by ooostephen View Post


Ah, right, uncore is the correct term. I'm using Asus jargon. 35x seems low. This whole Haswell thing has me cursing a lot. Stable one moment, crashing the next...ugh!

Well oostephen, ring bus/uncore are the names people typically use. Cache ratio not as often used.

 

Quote:
Originally Posted by Scotty Mac View Post


Well, I believe it's official. Hard drive dead. I booted up old build, cleaned and updated it (haven't turned it on in a month). Hooked up my 2 month old hard drive and what ya know. System ran the usual test then Error code 75 on the mobo. There is no OS on that drive, took drive back out, system booted up fine. Turned on current build with just the SSD, works perfectly. Actually seems faster now too. So other than using it in 2 different systems and doesn't work on either, has to be corrupt severely or dead. I don't know of any other way to trouble shoot it. Looks like I'll get getting another hdd. Another $75 down the drain.

Sorry to hear that Mac.

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Undelwalt (2017)
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CPUMotherboardGraphicsRAM
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Hard DriveHard DriveHard DriveCooling
Samsung 950 Pro 512gb (Undelwalt) WD Red 2tb (Pack Yak II) Seagate Expansion Drive 5tb (Phoenix Down II) 3x560mm HardwareLabs Nemesis GTX 
CoolingCoolingCoolingCooling
XPSC Raystorm Pro Watercool Heatkiller 1080ti Full Cover Waterblock EK XTOP Revo Dual D5 (Serial, PWM, v4) EK ZMT (1/2 - 3/4 ID OD) 
CoolingCoolingCoolingCooling
14xEK ACF (Compression Fittings) EK x4 250 (v2) Distilled Water + PT Nuke (Copper Sulphate) 24x140mm Silent Wings 3 
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Windows 10 Pro 64bit Catleap 27 Inch 2560x1440 IPS 60hz Display Coolermaster Storm Trigger (Brown Switches) EVGA P2 1000w 
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Sennheiser HD 800 2xKrk Rokit 6 G2 Blue Yeti (Grey) Rode PSA-1 Arm 
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Aquaero 6 LT + Aluminum Heatsink 
CPUMotherboardGraphicsRAM
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