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Haswell Overclocking Guide [With Statistics] - Page 173

post #1721 of 19652
Thread Starter 
Quote:
Originally Posted by wendigo4700 View Post

I was told in another topic, to keep my uncore as the same speed as my CPU. So for me, it would look like this here 4GHz / 4GHz.


And then I found another topic, saying to keep the uncore 100-300MHz below the CPU speed.


But I guess its to keep it at stock, when you overclock the CPU, and then you can consider raising the uncore a bit? I think thats how I understands it.

headscratch.gif

Kk, let me just tell you this:

All that is complete and utter horse... horse feces.


 

Credits to Maxforces for the second part of the benchmarks. From my personal benchmarks, I found the drop of 0.7ghz for the ring bus to be an equal performance hit of 0.05ghz decrease in core clock and this difference shows in a very CPU reliant benchmark like chess.

 

 

 
Maxforces Says:
Test setup

 

Results

 

 

 

 

 

 

 

 

 

 
but if you play 3dmark you will gain some pionts

 

 

They are just saying that stuff, I actually have benchmarks to back my statements up.

You overclock core with uncore at stock. After that you try to overclock uncore to the highest you can get away with without touching core clock. And if it happens you managed to get uncore to 100-300mhz under core clock, awesome.

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post #1722 of 19652
Okay, following the guide exactly, I can only get up to 4.1ghz at 1.25v. At 4.2 it bsods during a standard IBT run. It also gets up to 100c.

I'm not sure what else I can do here.
    
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post #1723 of 19652
Thread Starter 
Quote:
Originally Posted by Spritanium View Post

Okay, following the guide exactly, I can only get up to 4.1ghz at 1.25v. At 4.2 it bsods during a standard IBT run. It also gets up to 100c.

I'm not sure what else I can do here.

You've hit a thermal limit. You've also lost the silicon lottery.

My cpu is average and went to 4.5 and 1.28v.

 

You can upgrade your cooling solution, delid, or only use an easier stress test.

 

Haswells vary a lot in what each chip can do. A large part of it is simply due to luck. You can try to play with input voltage, SA voltage, Io voltage but your vcore is so low, those typically only come into play when you're at 1.35v or higher from my experience.


Edited by Darkwizzie - 9/2/13 at 1:07pm
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post #1724 of 19652
You make some very good points Darkwizzie.
And I think I've come to the conclusion, to never touch the uncore. As you say it barely has any effect at all. And looking at those screenshots on this page here, pretty much backs it up too.


The last "Temperature" picture, is somehow very interesting to me. Because it displays 4GHz on the CPU

4.0 / 4.0 Auto / Auto 55c

I wonder how temperature, would have looked with default uncore:

4.0 / 3.4 Auto / Auto
Edited by wendigo4700 - 9/2/13 at 1:10pm
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post #1725 of 19652
Quote:
Originally Posted by Darkwizzie View Post

You've hit a thermal limit. You've also lost the silicon lottery.
My cpu is average and went to 4.5 and 1.28v.

You can upgrade your cooling solution, delid, or only use an easier stress test.


Haswells vary a lot in what each chip can do. A large part of it is simply due to luck. You can try to play with input voltage, SA voltage, Io voltage but you're vcore is so low, those typically only come into play when you're at 1.35v or higher from my experience.

Just tried the same settings but with prime95 instead. Temps were a lot lower but it crashed almost instantly. Guess I'll try more vcore
    
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post #1726 of 19652
Thread Starter 
Quote:
Originally Posted by wendigo4700 View Post

You make some very good points Darkwizzie.
And I think I've come to the conclusion, to never touch the uncore. As you say it barely has any effect at all. And looking at those screenshots on this page here, pretty much backs it up too.


The last "Temperature" picture, is somehow very interesting to me. Because it displays 4GHz on the CPU

4.0 / 4.0 Auto / Auto 55c

I wonder how it would have looked with default uncore:

4.0 / 3.4 / Auto / auto

My experience is that uncore overclocks don't really up the temperature. Not by a sizable margin, anyways.

It also depends on what you use your computer for. If you're a gamer then no, you won't see any difference with uncore overclock at all. But if you're like me for some reason and you run chess a lot, well, chess is basically a CPU benchmark, it can sniff out minute changes in your CPU speed. So I want to do everything I can to up my speed so I can run my chess on a higher level and get my chess work done faster. Even then though, the difference is pretty small.

 

And some people assume uncore overclocking is identical to core overclocking, they put say, 1.4v core voltage and try to stuff 1.4v for uncore, you've just put yourself on the "CPU will explode one day" list.

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post #1727 of 19652
Thread Starter 
Quote:
Originally Posted by Spritanium View Post


Just tried the same settings but with prime95 instead. Temps were a lot lower but it crashed almost instantly. Guess I'll try more vcore

If you're ever at a complete loss as to what's causing a crash, and you get a Bsod, give us the Bsod code. Maybe that will be enough for people to head you in the right direction.

 

Linpack and IBT are very hot. Prime not as much, aida a notch under prime, chess/encoding with CPU only are a few notches under aida and only meant to simulate a real life worst case load. Only you can decide how stable is stable and what you feel you need to pass and for how long. That will decide what voltages you are willing to touch.


Edited by Darkwizzie - 9/2/13 at 1:15pm
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i5 6600k Delid @ 4.848/4.848 Asus z170 Hero MSI GTX 980ti @ 1499/4082 1.25v/134% Power 2 x 8gb Gskills Ripjaws V 3131 16-16-16-32 
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Undelwalt (2017)
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7600k @ 5.197/1.392 1.392v z170 Asus Hero EVGA 1080ti SC Black (2100/6250) x2 8gb GSkill Trident Z 3600 @ 3804 15-15-15-32-2T 
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Samsung 950 Pro 512gb (Undelwalt) WD Red 2tb (Pack Yak II) Seagate Expansion Drive 5tb (Phoenix Down II) 3x560mm HardwareLabs Nemesis GTX 
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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) 
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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 #1728 of 19652
Benching the 4770k the other night i remembered to get the multimeter on it for some vcore comparison.
I had cpu-z 1.66.1, hwmonitor pro 1.17, & hwinfo latest beta 4.23 open while running blackhole benchmark 4.2 final

With 1.58Vcore set in bios on the z87 mpower max, the digital multimeter was at 1.618V idle, 1.612 - 1.608V loaded depending on how heavy a load.
cpu-z never moved, 1.58V vcore set in bios, it reads a steady 1.579V.
Hwinfo vcore reading was off on vacation somewhere, not sure what vsen2 was supposed to be, but it looked closer to the actual vcore.
Hwmonitor was the closest to actual when looking at the vcore, reads a little bit high but pretty close.

    
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post #1729 of 19652
Quote:
Originally Posted by Darkwizzie View Post

My experience is that uncore overclocks don't really up the temperature. Not by a sizable margin, anyways.
It also depends on what you use your computer for. If you're a gamer then no, you won't see any difference with uncore overclock at all. But if you're like me for some reason and you run chess a lot, well, chess is basically a CPU benchmark, it can sniff out minute changes in your CPU speed. So I want to do everything I can to up my speed so I can run my chess on a higher level and get my chess work done faster. Even then though, the difference is pretty small.

And some people assume uncore overclocking is identical to core overclocking, they put say, 1.4v core voltage and try to stuff 1.4v for uncore, you've just put yourself on the "CPU will explode one day" list.


So in fact, I could potentially get lower temperatures, if I keep the uncore to default while taking the CPU to 4GHz?

Now about that VRIN thing. I was told to try out 1.6v. And that CPU vcore and VRIN is suppose to be around the same. Is there any hold on that?

I'm getting the entire Haswell setup this week here. But it never hurts to ask ahead smile.gif
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The devils pc.
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post #1730 of 19652
Thread Starter 
Quote:
Originally Posted by FtW 420 View Post

Benching the 4770k the other night i remembered to get the multimeter on it for some vcore comparison.
I had cpu-z 1.66.1, hwmonitor pro 1.17, & hwinfo latest beta 4.23 open while running blackhole benchmark 4.2 final

With 1.58Vcore set in bios on the z87 mpower max, the digital multimeter was at 1.618V idle, 1.612 - 1.608V loaded depending on how heavy a load.
cpu-z never moved, 1.58V vcore set in bios, it reads a steady 1.579V.
Hwinfo vcore reading was off on vacation somewhere, not sure what vsen2 was supposed to be, but it looked closer to the actual vcore.
Hwmonitor was the closest to actual when looking at the vcore, reads a little bit high but pretty close.

Very nice, thanks for the info!
It's very odd, HWInfo's behavior seems to change from one person's computer to the next. One guy reported a VID of zero one time!

 

Here is my HWinfo, the vcore reading of both HWinfo and HWmonitor seems to show a varying voltage depending on load above my set voltage in BIOS.

The load while running those were during a chess load.

Undelwalt (2017)
(29 items)
 
 
Celapaleis (2013)
(16 items)
 
CPUMotherboardGraphicsRAM
7600k @ 5.197/1.392 1.392v z170 Asus Hero EVGA 1080ti SC Black (2100/6250) x2 8gb GSkill Trident Z 3600 @ 3804 15-15-15-32-2T 
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 
OSMonitorKeyboardPower
Windows 10 Pro 64bit Catleap 27 Inch 2560x1440 IPS 60hz Display Coolermaster Storm Trigger (Brown Switches) EVGA P2 1000w 
CaseMouseMouse PadAudio
Corsair Air 540 Logitech G Pro Tek Syndicate "Raze the World" Desk Mat O2 + Odac by Mayflower Electronics (Rev A) 
AudioAudioAudioAudio
Sennheiser HD 800 2xKrk Rokit 6 G2 Blue Yeti (Grey) Rode PSA-1 Arm 
Other
Aquaero 6 LT + Aluminum Heatsink 
CPUMotherboardGraphicsRAM
i5 6600k Delid @ 4.848/4.848 Asus z170 Hero MSI GTX 980ti @ 1499/4082 1.25v/134% Power 2 x 8gb Gskills Ripjaws V 3131 16-16-16-32 
Hard DriveHard DriveHard DriveHard Drive
Samsung Pro Series 840 256gb (Celapaleis) 1 TB Samsung Drive (Pack Yak) Samsung Pro Series 850 256gb (Celapaleis Reprise) Phoenix Down (External Backup) 
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Noctua D14 Kraken x61 Push-Pull for GPU Windows 10 Pro Catleap 2560x1440 @ 60hz 
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Undelwalt (2017)
(29 items)
 
 
Celapaleis (2013)
(16 items)
 
CPUMotherboardGraphicsRAM
7600k @ 5.197/1.392 1.392v z170 Asus Hero EVGA 1080ti SC Black (2100/6250) x2 8gb GSkill Trident Z 3600 @ 3804 15-15-15-32-2T 
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 
OSMonitorKeyboardPower
Windows 10 Pro 64bit Catleap 27 Inch 2560x1440 IPS 60hz Display Coolermaster Storm Trigger (Brown Switches) EVGA P2 1000w 
CaseMouseMouse PadAudio
Corsair Air 540 Logitech G Pro Tek Syndicate "Raze the World" Desk Mat O2 + Odac by Mayflower Electronics (Rev A) 
AudioAudioAudioAudio
Sennheiser HD 800 2xKrk Rokit 6 G2 Blue Yeti (Grey) Rode PSA-1 Arm 
Other
Aquaero 6 LT + Aluminum Heatsink 
CPUMotherboardGraphicsRAM
i5 6600k Delid @ 4.848/4.848 Asus z170 Hero MSI GTX 980ti @ 1499/4082 1.25v/134% Power 2 x 8gb Gskills Ripjaws V 3131 16-16-16-32 
Hard DriveHard DriveHard DriveHard Drive
Samsung Pro Series 840 256gb (Celapaleis) 1 TB Samsung Drive (Pack Yak) Samsung Pro Series 850 256gb (Celapaleis Reprise) Phoenix Down (External Backup) 
CoolingCoolingOSMonitor
Noctua D14 Kraken x61 Push-Pull for GPU Windows 10 Pro Catleap 2560x1440 @ 60hz 
KeyboardPowerCaseMouse
CM Storm Trigger Brown Switches EVGA Supernova 1000w P2 Corsair 540 Air Razer Abyssus 
Mouse PadAudioAudioAudio
Steelseries QcK Mini Blue Yeti Microphone Objective Dac + Amp Sescom AB Switch 
AudioAudioAudioAudio
Krk Rokit 6 G2 x2 Radioshack Ground Loop Isolator (For Rokits) Wooaudio Aluminum Headphone Stand Sennheiser HD 800 
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