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Haswell Overclocking Guide [With Statistics] - Page 574

post #5731 of 19540
Quote:
Originally Posted by Darkwizzieย View Post

Hey Rush, my chart has you with a batch 311. I'm assuming that's a typo, but I want to make sure first.
Also, VID of 1.1 and Vcore of 1.375? I can't find a reading on that picture that says 1.375.

First thing I would do is set cache ratio to stock manually. Make sure when you stress, cache is at x34/x35. If you still crash then we have to take a closer look.... at things like input voltage, stress test you picked, temps, etc.

Quote:
Originally Posted by creos7ย View Post

Exactly, JJ is cool but on this account is wrong (or too aggressive). Just follow Darkwizzie's guide. And, of course, be healthily irreverent so - DON"T take Darkwizzie's on his word, and test for yourself (if you can get your PC stable enough to run at Uncore that close to Core for benchrmarks) and see what the impact is. I happen to be lazy and believe Darkwizzie but you don't have to tongue.gif. But also by the same token, don't blindly believe JJ. Also note that Darkwizzie provided concrete chart comparisons, at different levels and performance results whereas I didn't see that elsewhere... something to keep in mind!

I just happen to be lucky that I can run my Uncore at x45 but it really doesn't matter. I doubt it has ANY performance impact in real life scenarios, and in benchmark it'll be a tiny diff if I brought it down to say x40.

Solid advice. I guess I fell into the trap of blindly following guides as if they were scripture (I'm going to 90% blame myself for this, but also give 10% blame to Sin for putting together a crazy-good 3570k + Gigabyte mobo guide hahah)

I type this up as I sit on 4.5 @ 1.29v with uncore back to 3.5 and 2x4gb DIMMs @ 1866. My particular 4770k really doesn't like high uncore values for sure, but I'll keep tinkering and reading thumb.gif
post #5732 of 19540
Thread Starter 
Quote:
Originally Posted by creos7ย View Post


Exactly, JJ is cool but on this account is wrong (or too aggressive). Just follow Darkwizzie's guide. And, of course, be healthily irreverent so - DON"T take Darkwizzie's on his word, and test for yourself (if you can get your PC stable enough to run at Uncore that close to Core for benchrmarks) and see what the impact is. I happen to be lazy and believe Darkwizzie but you don't have to tongue.gif. But also by the same token, don't blindly believe JJ. Also note that Darkwizzie provided concrete chart comparisons, at different levels and performance results whereas I didn't see that elsewhere... something to keep in mind!

I just happen to be lucky that I can run my Uncore at x45 but it really doesn't matter. I doubt it has ANY performance impact in real life scenarios, and in benchmark it'll be a tiny diff if I brought it down to say x40.

And that's not to say, don't even OC your uncore. Sure thing, if you feel like it, go for it. But don't overclock both at the same time. Do the uncore after the core as I laid out in the guide. And yes, thank you for pointing that out. The people that keep saying a low uncore/cache 'bottlenecks' the CPU in some way also have a tendency to show no evidence.

ย 

I'm also going to upload this picture for the uncore stuff:

I'm going to work on the guide tonight. Got some things to hammer out...


Edited by Darkwizzie - 11/22/13 at 9:02pm
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post #5733 of 19540
any word on whether your memory voltage has any impact? I'm running my Dominator Platinum's at 1600mhz, yet they're rated for 2133mhz @ 1.65v. Any reports of better temps or frequencies due to running DIMMs at 1.5v instead of 1.65v?
post #5734 of 19540
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Quote:
Originally Posted by fleetfeatherย View Post

any word on whether your memory voltage has any impact? I'm running my Dominator Platinum's at 1600mhz, yet they're rated for 2133mhz @ 1.65v. Any reports of better temps or frequencies due to running DIMMs at 1.5v instead of 1.65v?

I don't think temps matter that much for ram kits. Also, too low voltage can cause instability when you push those frequencies. I also am at 2133 @ 1.65v. I don'tย feel like going any higher in terms of voltages to up the speed.

ย 

We could test what happens if we set a 1.65v setting to 1.5v, see if it crashes.


Edited by Darkwizzie - 11/22/13 at 9:35pm
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post #5735 of 19540
Quote:
Originally Posted by Darkwizzieย View Post

I don't think temps matter that much for ram kits. Also, too low voltage can cause instability when you push those frequencies. I also am at 2133 @ 1.65v. I don'tย feel like going any higher in terms of voltages to up the speed.

sorry, I meant to ask if I would see any possible improvements in CPU temps or stable frequency by dropping my RAM voltage from 1.65 to 1.5 wink.gif I'm clutching at straws trying to see what I can do with this chip haha.
post #5736 of 19540
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Originally Posted by fleetfeatherย View Post


sorry, I meant to ask if I would see any possible improvements in CPU temps or stable frequency by dropping my RAM voltage from 1.65 to 1.5 wink.gif I'm clutching at straws trying to see what I can do with this chip haha.

When I overclocked my ram, I saw no major difference in temps.

Uncore voltage can affect temps, but it's still relatively minor. The largest factor that you can control is which stress test you actually use. Use linpack and life will be a lot harder for you thermally. That far outshadows any small temp bump you get from abstaining from uncore OC/ram OC, etc.

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post #5737 of 19540

I have three Haswell 4770K at the moment. All of them have been overclocked and submitted here. The latest one I posted is the 1.375v.

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post #5738 of 19540
Quote:
Originally Posted by Darkwizzieย View Post

When I overclocked my ram, I saw no major difference in temps.
Uncore voltage can affect temps, but it's still relatively minor. The largest factor that you can control is which stress test you actually use. Use linpack and life will be a lot harder for you thermally. That far outshadows any small temp bump you get from abstaining from uncore OC/ram OC, etc.

Agreed on RAM, i noticed no temp diffs (personally) going from 1666 1.5 to 2133 1.6 (which is what my tridentX is rated at)/

However, I did see a good 5-7C increase in temps going from stock CacheRatio x35 to x45.

Something else quite interesting, going back to pure Core OCing (Uncore and RAM at stock). I read everywhere how Voltage really is the culprit for increased temps so I tried to keep mine as low as possible while trying to up Core multiplier. For sure it's great to keep it low to improve "wear-and-tear", ie increase the longevity of your CPU. However, in terms of temps I noticed that upping the Core WITHOUT TOUCHING THE VOLTAGE definitely spiked temps a lot! Conversely, changing the Voltage without touching the frequency didn't do much for me. And I always thought it was the opposite. I don't know if anyone else has noticed that but I definitely noticed jumps in temps going from 4.5 to 4.6 (keepin volts constant, was stable enough for a 30-min test) and similarly from 4.6 to 4.7, keeping volts constant.

Something to bear in mind. Still low voltage is better for longevity and for sure has SOME temp impact but not as much as people think (or I thought). For my CPU it's mutlipliers (mostly core and somewhat uncore).
post #5739 of 19540
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Quote:
Originally Posted by creos7ย View Post


Agreed on RAM, i noticed no temp diffs (personally) going from 1666 1.5 to 2133 1.6 (which is what my tridentX is rated at)/

However, I did see a good 5-7C increase in temps going from stock CacheRatio x35 to x45.

Something else quite interesting, going back to pure Core OCing (Uncore and RAM at stock). I read everywhere how Voltage really is the culprit for increased temps so I tried to keep mine as low as possible while trying to up Core multiplier. For sure it's great to keep it low to improve "wear-and-tear", ie increase the longevity of your CPU. However, in terms of temps I noticed that upping the Core WITHOUT TOUCHING THE VOLTAGE definitely spiked temps a lot! Conversely, changing the Voltage without touching the frequency didn't do much for me. And I always thought it was the opposite. I don't know if anyone else has noticed that but I definitely noticed jumps in temps going from 4.5 to 4.6 (keepin volts constant, was stable enough for a 30-min test) and similarly from 4.6 to 4.7, keeping volts constant.

Something to bear in mind. Still low voltage is better for longevity and for sure has SOME temp impact but not as much as people thing. For my CPU it's mutlipliers (mostly core and somewhat uncore).

Really? My experience, voltage still has a larger impact than multiplier. Multiplier has an effect for sure but IIRC I got larger impact from voltage. This is from over two months ago though so my memory is fuzzy.

ย 

A 5-7C isn't that large. Consider Linpack vs x264. We're talking like, 30C, 40C difference? Pretty ridiculous. I don't use Linpack, but for the purposes of testing stress test, I'll revert to 42/42.

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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)
(29 items)
 
 
Celapaleis (2013)
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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) 
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 
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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 
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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 
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Krk Rokit 6 G2 x2 Radioshack Ground Loop Isolator (For Rokits) Wooaudio Aluminum Headphone Stand Sennheiser HD 800 
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post #5740 of 19540
Quote:
Originally Posted by Darkwizzieย View Post

When I overclocked my ram, I saw no major difference in temps.
Uncore voltage can affect temps, but it's still relatively minor. The largest factor that you can control is which stress test you actually use. Use linpack and life will be a lot harder for you thermally. That far outshadows any small temp bump you get from abstaining from uncore OC/ram OC, etc.

Ahh yeah, fair enough. I've just been using aida64 to stress; HWM is showing I'm hitting 90C on my hottest core, whereas aida64's own temp monitor is showing I'm hitting 86C. I'm on 1.28 VID (1.30 vcore) and cooling with a h100i in push-pull. Early impressions I've gotten so far:

4.5 stable simply isn't possible on my chip.
Higher than stock uncore might not be possible (I haven't tried 3.6 or 3.7 yet, but I know 3.8< doesn't boot).
Higher than 1600mhz RAM isn't possible @ 4.2ghz< core

Raising Cache voltage simply isn't feasible - I'm already hitting 90C as mentioned above - so it looks like my only option is to try drop Vcore down...
Edited by fleetfeather - 11/22/13 at 9:58pm
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