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post #15321 of 21228
Quote:
Originally Posted by By-Tor View Post

I have a X438B136 thats running at 4.7 on 1.21v and the best I got out of it was 4.9 on 1.29v.

X438 brothers!

Looks to be a lucky batch perhaps? Think I might have similar luck with how well it's going for my chip?
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post #15322 of 21228
Hello, an OC newb here.

My system is as follows:

i5 4690k
AsRock Fatal1ty z97
G.Skill Ripjaws 8gb (2x4) 1866 (running at 1600 for now)
MSI gtx970 Twin Frozn
Samsung SSD 850 EVO
Rosewill 650w PSU
Noctua DH-14 cooler


I have my CPU overclocked to:

4.6ghz @ 1.29v core
4.4ghz @ 1.24v cache

These settings passed ten rounds of ITB at 85c, and over seven hours of AIDA64 at 71c. I might be able to get the speed a little higher and the voltage a little lower, but I think I am content here.

Also, after the stress tests, I re-enabled C states (but not EIST) and set the voltages to adaptive (they were on override). In another thread on the subject of power saving, it was suggested that Windows 8.1 with 'high performance' and just C states enabled yields a good idle setup without latency issues.

A couple of questions:

1) How do overclock numbers look?
2) Is leaving the voltages on adaptive the way to go once done with stress testing?
Edited by vmsmusic - 3/30/15 at 6:30am
post #15323 of 21228
Quote:
Originally Posted by Duriel View Post

X438 brothers!

Looks to be a lucky batch perhaps? Think I might have similar luck with how well it's going for my chip?

I have an X440 batch I just got last week, and it will do 4.8 at 1.34, where my other chip does 4.7 at 1.32 or has to go all the way up to 1.4v for 4.8. I am thinking with this new chip I should be able to get to 5.0 with a delid and 1.4-1.5v


Oh yeah and delidding these chips is pretty amazing. I got a 20 to 25 degree delta with the delid.
Edited by LandonAaron - 3/30/15 at 7:06am
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post #15324 of 21228
@vmsmusic

4.6ghz @ 1.29v core
4.4ghz @ 1.24v cache

Your core overclock is OK, around average.

Your cache voltage might be a little too high. Have you tried lower voltages such as 1.05v, 1.15v or 1.20v for cache voltage and check if it runs stable?

When you set your power option profile to high performance, you're setting your CPU to be at the overclock / turbo speed the whole time, such as that 4.6 GHz overclock you have.

While using the balanced profile:
If you set normal voltage with C-States and EIST, the cpu voltage does actually go down along with the cpu frequency, you may not see this in CPU-Z, but if you read the cpu voltages through another program such as HwInfo64 / HWmonitor you'll see the CPU voltage actually go down such as between 0.800v - 1.29V~, and of course it scales depending on CPU workload. It's actually better to run manual voltage than adaptive / offset voltage on the haswell generation CPU's because Adaptive / offset will put a little bit more voltage than what you've set it to, but feel free to choose what you think is best in your situation.

Heres how my power saving setup is done:

CPU Voltage: Manual @ desired CPU Voltage
C-States Enabled (C1E, C3, C6 / C7)
EIST: Enabled

Windows Power Plan: Balanced

I do have one question though, what voltages are you running on adaptive at the moment and what are they set to?

Such as VCCIN / Input voltage, Cache Voltage, CPU Voltage and etc.
Edited by benjamen50 - 3/30/15 at 8:42am
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post #15325 of 21228
On Windows 7 64bit I always use the High Performance power plan, set like this:
Warning: Spoiler! (Click to show)

And EIST + all C States enabled (and not just left on Auto), of course. And I always use Adaptive on both the Core and the Uncore (Cache) voltages. Everything idles.

This way some of my cores are even...parked! Dunno exactly what this means.
Warning: Spoiler! (Click to show)

Edited by LostParticle - 3/30/15 at 8:55am
    
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post #15326 of 21228
@benjamen50

I followed your suggestion: back to override instead of adaptive, balanced instead of performance, and EIST enabled. Where exactly in HWInfo would I see the current voltage? Vcore (currently says around 0.8v)? I was only looking at VID before (which never changed). EDIT ... current clock speed are jumping from around 800 to 4600. Normal?

VCCIN has been at 1.9 throughout all of my testing. When I was on adaptive, I had the core or and cache voltages as stated earlier (1.29/1.24). I lowered the cache to 1.2v and will try some stress testing, but I don't really want to be at this for days on end (i.e put myself through a stress test).

Question though ... in the thread on power saving, some people noticed latency issues (such as with SSD random read/write speeds) when certain settings were enabled or disabled. How is system performing in this regard with all power saving features on?
Edited by vmsmusic - 3/30/15 at 8:53am
post #15327 of 21228
@LostParticle

Adaptive vs Override
Performance vs Balance


... I sense a headache on the horizon.

Pros and cons on adaptive vs override?
Difference between balance and all power savers vs performance and all power savers?
post #15328 of 21228
Quote:
Originally Posted by LostParticle View Post

On Windows 7 64bit I always use the High Performance power plan, set like this:
Warning: Spoiler! (Click to show)

And EIST + all C States enabled (and not just left on Auto), of course. And I always use Adaptive on both the Core and the Uncore (Cache) voltages. Everything idles.

This way some of my cores are even...parked! Dunno exactly what this means.
Warning: Spoiler! (Click to show)

I always use the registry edit to disable core parking. If I am going to pay the big bucks for an i7 with hyper threading, I don't want half my cores parked half the time. I have no idea how this affects performance or power savings.
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post #15329 of 21228
Quote:
Originally Posted by vmsmusic View Post

@benjamen50

I followed your suggestion: back to override instead of adaptive, balanced instead of performance, and EIST enabled. Where exactly in HWInfo would I see the current voltage? Vcore (currently says around 0.8v)? I was only looking at VID before (which never changed). EDIT ... current clock speed are jumping from around 800 to 4600. Normal?

VCCIN has been at 1.9 throughout all of my testing. When I was on adaptive, I had the core or and cache voltages as stated earlier (1.29/1.24). I lowered the cache to 1.2v and will try some stress testing, but I don't really want to be at this for days on end (i.e put myself through a stress test).

Question though ... in the thread on power saving, some people noticed latency issues (such as with SSD random read/write speeds) when certain settings were enabled or disabled. How is system performing in this regard with all power saving features on?

Look for "Vcore" voltage under HWiNFO64 sensor status window (For me it was under a motherboard name heading), it should be fluctuating depending on load. Yes the frequency fluctuations from 800 to 4600 is normal. (You may notice that the maximum recorded Vcore voltage is not near your desired CPU voltage, this is normal as it records from when the program is open, if you want to verify that it is working properly, enter a cpu stress test for 1 to 3 seconds then stop it.

Yeah I did hear something about power saving features effecting SSD performance, it was something to do along the lines of the intel C-states having an effect on the SSD read / write speeds.

I'm going to put my power saving settings all to enabled instead of auto, I'll see how that goes.

Seems like setting all my C-States and C1E / EIST to enabled instead of auto made my windows 7 startup freeze for about 10-20 seconds then went back to normal.. Weird...
Edited by benjamen50 - 3/30/15 at 9:44am
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post #15330 of 21228
Cache voltage of 1.20v failed ITB. 1.22v passed. I will do an AIDA64 test later, and if it goes well, that where I will stand (and if not, back to 1.24v and no more stress tests).

I thought you had all your power saves on 'enabled' instead of 'auto' (I am not even sure I have that option) as stated in your original reply?
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