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Haswell Overclocking Guide [With Statistics] - Page 237

post #2361 of 19540
Quote:
Originally Posted by Anusha View Post

how did you come up with those values mate?

does anyone have an idea on how to stress the memory overclocks? i think i'm done with clocking the CPU and cache, now want to squeeze in every performance i can from RAM. my sticks don't go above 1600 at any CL value or at any voltage value. nor do they like to run at CL8 at 1600 at any voltage. i have changed from 9/9/9/24/2T to 9/8/8/20/1T. no idea how helpful they are. just wanna test if those settings are stable. any help is appreciated.

Superpi 32m is a decent ~ 8 minute test for memory stability, may not mean 100% stable but if it can't pass, no point in trying anything longer yet.
For more extensive testing IBT with max memory is tough on memory (but hot), prime 95 large FFTs should also use lots of memory.
I haven't used HCLmemtest (suggested below) with ivy or haswell but it was a good stability test for memory when I used it last. Multiple instances of it splitting up the memory went faster.
Quote:
Originally Posted by Hyolyn View Post

Well there's a lot of logic, any hardware can cause a bsod but if it's related to your overclock i can't answer.
Try Memtest http://www.memtest86.com/

Memtest86 is an error checker to see if memory is defective, it won't tell you anything about memory stability in the OS.
Quote:
Originally Posted by Forceman View Post

You can try HCI Memtest. It runs in Windows, but you'll need to run multiple instances of it to test all your memory (the free version is limited to 2GB, if I recall correctly). Seemed to work pretty well for me.

http://hcidesign.com/memtest/

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post #2362 of 19540
Hi Guys

I just dropped my 4770k in my Z87X-UD4H, and so far only did some basic OC, raised it to 4.5ghz, and 1.248V its stable.
My problem is...i have 8Gb 1866CL9 corsair ram. If i leave it on auto, th eMB set it to 9-13-13-27 while the factory specs are 9-9-9-24.....but if i set it to manual, and enter these, it BSOD on windows load.

Any thoughts?
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post #2363 of 19540
Are you giving it the right voltage?
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post #2364 of 19540
Quote:
Originally Posted by Mtom View Post

Hi Guys

I just dropped my 4770k in my Z87X-UD4H, and so far only did some basic OC, raised it to 4.5ghz, and 1.248V its stable.
My problem is...i have 8Gb 1866CL9 corsair ram. If i leave it on auto, th eMB set it to 9-13-13-27 while the factory specs are 9-9-9-24.....but if i set it to manual, and enter these, it BSOD on windows load.

Any thoughts?

I recommend sticking with the motherboard's timings in general; Haswell changed up the secondary and tertiary timings, and lots of people have had issues running memory at XMP. Things get more unstable when you throw in overclocking on top of that. Maybe you can try reducing each timing individually to narrow it down to just one that needs to stay at 13 or whatever.

For my Corsair Dominator Platinum 2133CL9, I changed some random timing (tFAW) to 40, because the motherboard tried to run it at 20 or 32 (BIOS updates changed the default behavior) which is not what the RAM is rated for. I believe this solved a phantom BSOD 0x124 that I saw even at stock settings.
post #2365 of 19540
Strangely it was the opposite, i havent got XMP on. Now i turned it on, and it runs stable...
Any suggestions i could try to maybe lower the vcore needed for the 4.5ghz?
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post #2366 of 19540
Thread Starter 

On top of Bsods from overclock I have more issues to worry about:

 

G45 Z87 Gaming motherboard has negative reviews about ram problems... If I go on a limb here, maybe it's 9c related?

But even more in the face, I crash with my bad internet chip. Computer locked up when I disabled and tried to re-enable the internet.

I just want internet on my computer to work, I shouldn't have to spend hours on the net' praying for a solution.

 

 

Sigh.

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post #2367 of 19540
Quote:
Originally Posted by wendigo4700 View Post

awesome. My pc froze again for like the 6th time for the last 1½ days. It freezes, so it doesnt give me an BSOD message.

Seems like trying to get the CPU to run 4GHz, while keeping uncore + bus speed at defaults, is very very tricky.

That's ok bro, just take it in stride. Aida64 fooled me too and initially I was running 4.6 GHz @ 1.200V for hours on end. Then I started trying OCCT, Prime, and Linpack only to get BSOD 2-5 hours in. I ended up raising my voltage from 1.200-1.225V (VID) to get it 9+ hours Prime stable. Let me tell you that Intel Burn Test and Linpack benchmark are both good and fast initial stress tests to run on your OCs. You can run 10-20 passes of both in less than a half hour, and it will tell you if you are more or less in the ballpark. If you pass both on very high or maximum (On Linpack I like to do manual equation entry of between 20,000-30,000) then you can try the long Prime or OCCT runs. This will save you time, especially when tweaking (or raising) your Uncore after your initial OC is dialed in.

You voltage is still very low, dont be afraid to raise it up a bit. stability is a necessity. BSOD while working or gaming can cause all types of corruption and OS issues down the road. Imagine getting a crash while doing a few updates. Also, it doesn't hurt to disable cache writing for your primary HD while stress testing, this will help to further avoid corruption of the HD or OS while testing.

BSOD are part of OCing, so don't get discouraged. Fine tuning your OC will be time consuming, although there are ways to save time while stress testing like posted above. It took me nearly a month to dial in my 4.6 and 4.7 OCs. So take your time and get it right, it is well worth it...
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post #2368 of 19540
Quote:
Originally Posted by Darkwizzie View Post

On top of Bsods from overclock I have more issues to worry about:

G45 Z87 Gaming motherboard has negative reviews about ram problems... If I go on a limb here, maybe it's 9c related?
But even more in the face, I crash with my bad internet chip. Computer locked up when I disabled and tried to re-enable the internet.
I just want internet on my computer to work, I shouldn't have to spend hours on the net' praying for a solution.


Sigh.

Where did you read that? I need info to convince my wife I need a new board.
Edited by jameyscott - 9/10/13 at 3:42pm
post #2369 of 19540
Thread Starter 
Quote:
Originally Posted by jameyscott View Post


Where did you read that? I need info to convince my wife I need a new board.

What's that? The ram issues? Newegg. The internet issues, google and MSI forums.

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CoolingCoolingCoolingCooling
14xEK ACF (Compression Fittings) EK x4 250 (v2) Distilled Water + PT Nuke (Copper Sulphate) 24x140mm Silent Wings 3 
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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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post #2370 of 19540
Quote:
Originally Posted by IronAge View Post

Major advantage of Prime95 CustomFFT: you may stress certain voltages.

864K/1344K for VCore
720K for VTT = analog / digital I/O
768K for VCCSA / System Agent
448K for Input Voltage / VCCIN / VRIN (different names for different mobo brands)
512K/576K for Cache/VRing Voltage
people, this seems to have a lot of validity.

i was 6hrs OCCT stable at 4.3/1.24V, 2hrs Prime 28.11 stable @ 4.3/1.25Vand stable in real world stuff i do as well.

i ran 1344K FFT stress test in Prime95 and i got a BSOD within 2 min!!! i increased the Vcore from 1.250 to 1.255V and it ran fine for 10min. i couldn't run it for longer. i don't want to keep it running when my wife is home because she thinks the PCs need rest like we do. LOL. i don't wanna argue with her. so, overnight testing it is.

about memory stress testing

further, i got a 0x101 with RAM at 1600/9-8-8-20-1T within few minutes by using 1024-8192K/12GB RAM/not in-place prime 95 tests . looks like it is not stable after all. glad it didn't go for hrs and hrs then fail. dropping it to XMP settings let me go for 2hrs+ with same settings.

looks like 0x101 is VTT. maybe i need to increase VTT (VCCIO-D and VCCIO-A and maybe VCCSA as well). VCCIO-D is at +0.100V by AUTO setting.

increasing the cache ratio

i have a feeling that i might be able to hit 43x on uncore with this new testing procedure. just to see if i can do 43x, i increase it to 43x but also increased the cache voltage to almost same as Vcore. 1.23V. it gave a 0x124, not a lockup, after about 10min, as if to say that the input voltage was too low. i mean, the 1.90V input voltage was set to match 1.25V Vcore/1.175V Uncore. i might need to increase it to 1.95V. but for the time being, i'm testing 1.255V Vcore/1.175V Uncore with multi synced at 43x. if i get a lockup, i might have to increase cache voltage AND input voltage at the same time. it's a good thing the weather has gotten a little mild these days. no need to use the A/C smile.gif

still a few stuff remaining to tweak it seems. i will play with them in the coming days. looks like i'll have to refresh Windows 8 again by the weekend. tongue.gif
Edited by Anusha - 9/10/13 at 4:16pm
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