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Haswell Overclocking Guide [With Statistics] - Page 671

post #6701 of 19580
Quote:
Originally Posted by error-id10t View Post

Just for those who based their OC on BF4 previously instead of X264 latest version etc, you may be able to lower it back down now to X264 levels (maybe due to the various patches).

I've been trying to get x46 stable but I'm missing some secret sauce that is causing it to fail either on 101 or 124 here and there when using X264 or Realbench even up to 1.41v and 2.05v VCCIN. It's fully stable in BF4 however @ 1.38v and 1.9v VCCIN. x45 is fully stable @ 1.32v and 1.82v VCCIN on everything.

tried boosting SA and I/O to +0.030 in an effort to bypass the IMC? the IMC might be holding your core stability back
post #6702 of 19580
Thread Starter 
Quote:
Originally Posted by tone503773 View Post


Core Multiplier: 46
CPU VID: 1.380v
Vcore: 1.384v
Input Voltage: 2.0v
Uncore Multiplier: 35
Uncore Voltage: 1.05v
Cooling Solution: Swiftech H220 AIO
Stability Test: RealBench H.264 Video Encoder (Fails) also it's stress test (10 Pass) and it passes the stress test and games (ie. Crysis 3) but not H.264.
Batch Number: L315B408 Malay
Ram Speed: 2400Mhz 10-12-11-1T 1.65v (OC'ed Corsair Vengeance Pro 1866)
LLC: Level 8

 I would up the uncore voltage to 1.15v just in case it's too low. Back to stock ram. If that still fails, you can imitate my settings (1.42v VID, 2.15v VCCIN). Whether that voltage is too much for you is up for you to decide, but my own experience shows that as a fine balance of vcore/vccin. I did quite a bit of testing to make sure I'm not talking out of my ass, but then again, I only have one cpu to test with.

 

Quote:
Originally Posted by fleetfeather View Post


1.98VRIN is what I needed for 1.375v. I would suggest 2.00v+ for 1.4v+. Wizzie has 2.15v VRIN for 1.46v

For me, 1.9 VCCIN was enough for 1.35v. I didn't really test to see if I could get lower than 1.9v, I just randomly picked that setting and it held up under every synthetics (excluding temperature related problems with Linpack alone). I use 2.15v VCCIN for 1.42v VID, 1.442v Vcore (chess, x264 load). I do not know if 2.15v is good for 1.46v VID.


Edited by Darkwizzie - 12/10/13 at 3:00pm
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post #6703 of 19580
Quote:
Originally Posted by Darkwizzie View Post

You will be charted.

For me, 1.9 VCCIN was enough for 1.35v. I didn't really test to see if I could get lower than 1.9v, I just randomly picked that setting and it held up under every synthetics (excluding temperature related problems with Linpack alone). I use 2.15v VCCIN for 1.42v VID, 1.442v Vcore (chess, x264 load). No nonsynthetic application that I use ever uses more voltage/ups more temps than chess or x264.

whoops sorry, i was close tho tongue.gif
post #6704 of 19580
Yeah, tried those with no success up to 0.3v. It's really, really annoying as the benches will pass only to bring me back down to earth by failing on the next run. There was virtually no difference how the benches behaved between this 1.38v - 1.41v. They would pass and then fail at another time. Like I said.. some secret sauce is needed!
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post #6705 of 19580
Thread Starter 

Don't forget, as a last resort if you really, really want to get it to work, you can do what I did, which is to run many runs of stress test and time how long on average it takes to Bsod for each change in setting. I managed to figure out I needed higher VCCIN through that method, albeit after hours. Then again, some stress tests do not lag the computer too much, you can still surf the web while stressing.

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post #6706 of 19580
Trying to get 4.6GHz on a 4770k and well, I could not go over 1.35v without hitting 95C on x264 and anything less would crash. So this will have to wait until the CPU is lapped and dilidded and if that is not enough then until the computer is under water (build log for the Hawaiian Heat Wave in sig).

This is where I ended up;

01. Ai Overclock Tuner => XMP Profile
02. CPU Core Ratio => 46
03. Min. CPU Cache Ratio => 35
04. Max. CPU Cache Ratio => 35
05. DRAM Frequency => 2400MHz
06. CPU Core Voltage Override => 1.35v
07. CPU Cache Voltage => Auto
08. CPU System Agent Offset => 0.5v
09. CPU Analog I/O Voltage Offset => 0.5v
10. CPU Digital I/O Voltage Offset => 0.5v
11. Eventual CPU Input Voltage => 2.0v

By the way, suggestions welcomed, if someone wants to take a stab at it.
 
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post #6707 of 19580
Quote:
Originally Posted by blaze2210 View Post

OCCT, depending on the test you're running, is basically Prime95 or LinX....Any way you cut it, it's still a synthetic test that generates unrealistic levels of heat.... 2cents.gif

At the end of the day, you'll still need to actually use the computer to determine whether or not it's actually stable for your own purposes....I've had OC's that were stable for 8+ hours of Prime, only to crash after 15 minutes of Far Cry 3 on max settings....Just sayin....

1) I agree 100% that it is synthetic which goes with all the caveats we've discussed a thousand times on this thread -- there's no guarantee it won't pass for like 20 hours and then the first game you play BSODs smile.gif

2) It is a personal choice what level of synthetic stability you want. I could see a very clear correlation between how high my voltages were and how many hours of OCCT I could pass (started out at like 30mins, through 2-3hours then 5, then 6, and finally 8). I decided 8 makes me feel comfortable, but doesn't mean it really means anything smile.gif or that's it's appropriate. At all. Just psychological comfort for me. I just don't do serious gaming at all, otherwise I would have absolutely incorporated games into my battery of tests!

3) it is very much a MODIFIED version of Linpack / Prime95 and -- to me -- is much more sensitive at lower heat! (though i've only verified that up to a point as temps get too high for Linpack/Prime95 to run a comparison)

4) it does NOT generate heat anywhere near Linpack or Prime95. Heat is very manageable for me at my OC settings (you can see them in my other posts). Occasionally, it will spike to 95 but for the vast majority of the time it runs in the mid 70s (x264 runs in the 60s, very rarely spiking in the low 70s). In comparison, at current OC settings Prime95 runs solidly in the 90s for a single pass as does IBT and I dare not run it for longer. It's not something I would let run for more than a single pass with my higher voltages. Moreover at lower voltages OCCT caught stuff that Prime95 did not using lower heat!

Darkwizzie,
I ran 30x passes of x264 last night, and it succeeded as expected. I'll probably keep running 8hr OCCT in the next couple of weeks to see if degradation occurs but i'm hoping OC settings are stable now.
Edited by creos7 - 12/10/13 at 4:10pm
post #6708 of 19580
Quote:
Originally Posted by Gunderman456 View Post

Trying to get 4.6GHz on a 4770k and well, I could not go over 1.35v without hitting 95C on x264 and anything less would crash. So this will have to wait until the CPU is lapped and dilidded and if that is not enough then until the computer is under water (build log for the Hawaiian Heat Wave in sig).

This is where I ended up;

01. Ai Overclock Tuner => XMP Profile
02. CPU Core Ratio => 46
03. Min. CPU Cache Ratio => 35
04. Max. CPU Cache Ratio => 35
05. DRAM Frequency => 2400MHz
06. CPU Core Voltage Override => 1.35v
07. CPU Cache Voltage => Auto
08. CPU System Agent Offset => 0.5v
09. CPU Analog I/O Voltage Offset => 0.5v
10. CPU Digital I/O Voltage Offset => 0.5v
11. Eventual CPU Input Voltage => 2.0v

By the way, suggestions welcomed, if someone wants to take a stab at it.

Pls take this with a grain of salt but some random obsevations:
-Those SA/AIO/DIO seem really high to me to be honest, i noticed that for me, instability ensued big time if i went above 0.25 and you have 0.5.
-can you verify what cpu cache voltage you mobo applies? leaving it on auto leaves you exposed to the possibility of some crazy number (due to core OC)

what is your cooling soln?
post #6709 of 19580
Hey guys I have a problem I overclocked my haswell i5 4670k to 4.8ghz other day now i'm at 4.7ghz!! Anyway I was doing some overclocking on my Memory and came
across this NB Freq is at 3.8ghz why so?? I have the CPU Ratio at 4.7ghz 1.34v complete stable but shows here 3800mhz NB Freq that normal? I change it to 4.7 but wouldnt boot up so its at auto and Cpu ratio at 47

Have a MSI Z87 G45 motherboard
post #6710 of 19580
Ok, you got me off the couch. I did try 0.15v for SA and I/Os. On Auto while in bios the cache voltage fluctuates between 1.009v and 1.015v (actually when I switched it to Manual, so I can input my own voltage, it displayed 1.35v). I'm on a Corsair H60 at present.

I will try your numbers.
Edited by Gunderman456 - 12/10/13 at 4:59pm
 
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CPUMotherboardGraphicsRAM
AMD Athlon II X4 640 ASRock N68C-GS NVIDIA 6600GT G. Skill Ripjaws DDR3 1600MHz 
Hard DriveOptical DriveCoolingOS
WD Caviar Blue 500GB 16MB Cache 7200RPM LG Optical Drive Thermaltake Max Orb Windows 7 
MonitorKeyboardPowerCase
Viewsonic 19” Flatscreen CRT Gigabyte GK-K6800 103  Thermaltake TR2 600W Cigar Boxes 
MouseMouse Pad
Zalman ZM-M300 Corsair Vengeance MM200 
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BitoHeaven
(16 items)
 
Cigar ATX PC
(14 items)
 
CPUMotherboardGraphicsGraphics
Intel i7 4770k @ 4.5GHz Asus Maximus VI Gene Gigabyte R9 290 @ 1160MHz/1350MHz Gigabyte R9 290 @ 1160MHz/1350MHz 
RAMHard DriveHard DriveOptical Drive
G.Skill Trident X 2X8GB DDR3 2400MHz Samsung 840 PRO 256GB  Seagate Barracuda 7200.14 3TB SATA III 6Gb/s 64... Pioneer Blu-ray Burner 
CoolingOSMonitorKeyboard
Liquid Single Loop Triple Radiators Win 7 SP1 Professional x64bit  Samsung SynchMaster 24" Widescreen 1200p TFT-LC... Logitech G15 
PowerCaseMouseMouse Pad
EVGA SuperNOVA G2 1300w 80+ Gold Fully Modular  Fractal Design Arc Midi R2 Microsoft Sidewinder X5 Allsop Redmond Mouse Pad 
Audio
Cambridge Soundworks 5.1 
CPUMotherboardGraphicsRAM
Intel Core i5-3570K @ 4.6GHz ASRock Z77E-ITX mITX  Sapphire HD 7990 @ 1090MHz/1600MHz G.SKILL Ripjaws 2X4GB DDR3-1600 @ 1866MHz 
Hard DriveHard DriveOptical DriveCooling
Crucial SSD 128GB mSATA SATA III 6GB  Seagate Barracuda 7200.12 1TB SATA II 32MB 7200RPM LG DVD R/W SATA with LightScribe Corsair Cooling Hydro Series H100 
OSMonitorKeyboardPower
Win 7 Professional x64bit Samsung 52" 1080p 60Hz LCD Logitech Wireless K330 Corsair AX850 Gold Fully Modular 
CaseMouseMouse PadAudio
BitFenix Prodigy Mini-ATX Black  Logitech Wireless M215 Corsair Vengeance MM200 Yamaha RX-V681 & PSB/Polk Audio 5.1 
CPUMotherboardGraphicsRAM
AMD Athlon II X4 640 ASRock N68C-GS NVIDIA 6600GT G. Skill Ripjaws DDR3 1600MHz 
Hard DriveOptical DriveCoolingOS
WD Caviar Blue 500GB 16MB Cache 7200RPM LG Optical Drive Thermaltake Max Orb Windows 7 
MonitorKeyboardPowerCase
Viewsonic 19” Flatscreen CRT Gigabyte GK-K6800 103  Thermaltake TR2 600W Cigar Boxes 
MouseMouse Pad
Zalman ZM-M300 Corsair Vengeance MM200 
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Reply
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