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post #21961 of 22027
Quote:
Originally Posted by Benny89 View Post

Ok, I will try ROG bench when I get home. What memory intensive test do you recommend? I tried MemTest86 but I couldn't boot from boot USB. BIOS detected it, I changed priorities, hell, even at some poit disabled SSD completely from boot options and still couldn't boot to MemTest86 (secure boot was disabled).

As I said earlier- I am still testing that OC. 5.0Ghz obviously need more testing to be called stable. Sadly I don't have time to play more than 3h per day at best so longer tests are simple impossible before weekend rolleyes.gif

Still, even If I had to settle on 4.9- chip is still great thumb.gif

Imo it is a combination of tests that would conclude a cpu stable. For me it was bf4/the devision that showed instability. I could do 4800mhz @ 1.28vcore in multiple games. Rog bench 4+ hours, prime 2 hours and up. Even the devision showed no problems, then i loaded up bf4, pc bsod after an hour and from then on my cpu needed 1.3vcore to be stable. Now it even need 1.31vcore to be stable in the division..

Not sure what bf4 did with my cpu but it sure tested its limits.

Im wondering if i should trade it in for another one with intel. But am afraid of getting one that wont even hande 4800mhz..
post #21962 of 22027
Quote:
Originally Posted by weskeh View Post

Imo it is a combination of tests that would conclude a cpu stable. For me it was bf4/the devision that showed instability. I could do 4800mhz @ 1.28vcore in multiple games. Rog bench 4+ hours, prime 2 hours and up. Even the devision showed no problems, then i loaded up bf4, pc bsod after an hour and from then on my cpu needed 1.3vcore to be stable. Now it even need 1.31vcore to be stable in the division..

Not sure what bf4 did with my cpu but it sure tested its limits.

Im wondering if i should trade it in for another one with intel. But am afraid of getting one that wont even hande 4800mhz..

There are a lot of opinions about testing stability of OCed CPUs. Many people are saying that with good cooling solution you can do AIDA, ROG bench, Prime etc for as many hours as you want. Doesn't really matter. But you have to test it in games (or whatever is your main activity on PC) to see if it really works for you.

I didn't get BSOD in BF1, just freeze, PC turn off and reboot. I had only one or two BDSOD (at 5.0 Ghz) in desktop but increasing voltage helped.

Gonna test more thumb.gif
Edited by Benny89 - 4/4/17 at 2:15am
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post #21963 of 22027
In Windows, I recommend the following two approaches for memory testing:
1) Prime 95 - 800K FFT Run In-Place option for 2 hours. Other selective tests with Prime 95 to verify stability: https://www.hardwareluxx.de/community/f139/howto-get-my-haswell-devils-canyon-stable-guide-und-full-custom-liste-989828.html

2) HCI Memory Test 300% coverage - split 90% of your total memory among 8 instances of the program
 
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post #21964 of 22027
OK, I have settled down on 4.9GHZ 1.27V. 100% stable so far in all testing.

5.0GHZ was stable at 1.37 but I didn't want to stress it that much, so for everyday use I am cool with 4.9Ghz smile.gif




Now I will try to OC memory, but if someone would be so nice (best if with Asus VII board) to guide me step by step how to do it properly.

I OCed CPUs and GPUs but never RAM tongue.gif
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post #21965 of 22027
Quote:
Originally Posted by Benny89 View Post

OK, I have settled down on 4.9GHZ 1.27V. 100% stable so far in all testing.

5.0GHZ was stable at 1.37 but I didn't want to stress it that much, so for everyday use I am cool with 4.9Ghz smile.gif




Now I will try to OC memory, but if someone would be so nice (best if with Asus VII board) to guide me step by step how to do it properly.

I OCed CPUs and GPUs but never RAM tongue.gif

Do you mind sharing all the settings in BIOS you used/changed to 4.9Ghz? I'm planning to OC mine to something like that when my delid tool arrive
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post #21966 of 22027
Quote:
Originally Posted by Benny89 View Post

OK, I have settled down on 4.9GHZ 1.27V. 100% stable so far in all testing.

5.0GHZ was stable at 1.37 but I didn't want to stress it that much, so for everyday use I am cool with 4.9Ghz smile.gif




Now I will try to OC memory, but if someone would be so nice (best if with Asus VII board) to guide me step by step how to do it properly.

I OCed CPUs and GPUs but never RAM tongue.gif

In Memory Timing's subscreen, set all values to Auto if they aren't already. Only need to touch these for now, and for 2400MHz:
Voltage: 1.65v, up to 1.7v
Primary Timings: 10-12-12-31
Command Rate: 1T for 2 modules or 2T for 4 modules
DRAM Clk Period: Try 8 thru 5. This determines how the auto secondaries and tertiaries are set by the board. Lower means tighter timings and will require more voltage. Too low may not even POST. I use 8 for 2666MHz at 1T for 2x8GB. For some reason, I am also able to use 5 at 2T for 4x8GB at 2666MHz with complete stability, but this is because I tweaked almost all of the settings.

Great Asus resources for VI and VII series:
https://rog.asus.com/forum/showthread.php?39185-Memory-Setup-Guide-For-Maximus-VI-Motherboards
https://rog.asus.com/forum/showthread.php?5835-ASUS-Rampage-IV-Extreme-UEFI-Guide-for-Overclocking
 
LGA775 X5470
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i7-4790K 4.9GHz @1.375v Maximus VII Gene MSI 980TI 6G 1493/8190 2x8GB Trident X 2666C11 
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2x8GB Trident X 2933C12 Kingston HyperX 3K 240GB WD Blue WD6400AAKS 640GB Intel 530 120GB 
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480mm Radiator Custom Windows 7 Ultimate 64-bit Gentoo Linux 64 Multi-Lib Acer Predator XB271UH 165Hz 
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Logitech G710+ Seasonic 660XP2 Platinum Silverstone FT03 Logitech G502 
Audio
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CPUMotherboardGraphicsGraphics
X5470 4GHz (stock) GA-EP45-UD3P EVGA 8800GT Akimbo 1GB EVGA 9800 GTX+ 512MB 
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LGA775 X5470
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i7-4790K 4.9GHz @1.375v Maximus VII Gene MSI 980TI 6G 1493/8190 2x8GB Trident X 2666C11 
RAMHard DriveHard DriveHard Drive
2x8GB Trident X 2933C12 Kingston HyperX 3K 240GB WD Blue WD6400AAKS 640GB Intel 530 120GB 
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480mm Radiator Custom Windows 7 Ultimate 64-bit Gentoo Linux 64 Multi-Lib Acer Predator XB271UH 165Hz 
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Logitech G710+ Seasonic 660XP2 Platinum Silverstone FT03 Logitech G502 
Audio
Supreme FX II 
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X5470 4GHz (stock) GA-EP45-UD3P EVGA 8800GT Akimbo 1GB EVGA 9800 GTX+ 512MB 
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post #21967 of 22027
Quote:
Originally Posted by ViTosS View Post

Do you mind sharing all the settings in BIOS you used/changed to 4.9Ghz? I'm planning to OC mine to something like that when my delid tool arrive

Hi. I didn't change much. Basic CPU OC is very simple. I was very scared at first to do it, but it is even easier than GPU. Only testing for stability takes longer.

In BIOS (Asus VII Hero) - Xtreme Tweaking-> Set XMP -> make sure cores are at "sync all cores" -> I started with 46 on core-> go lower, find "Core Voltage", set to "Manual", I started with 1.25-> Go lower, find "Innitial Input" and I set it to 1.900. Then I go to desktop and run ADIDA64 CPU stress test for an 1-2 hours. If ok, I go back to bios, and start going up in core- 47, testing, 48, testing etc. If your system does not boot or crash (BSOD), increase voltage by 0.02 in BIOS and check again for stability.

I have a rule, don't go above 1.37 and above 78C during load. Once you have stable OC vs Voltage, start testing games. If they crash your PC, increase voltage. If that not help, well, you have to go down in OC.

It takes long but it is easy. Just takes so long....
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Hard DriveHard DriveCoolingOS
SSD HyperX Savage 480GB SATA3 Seagate 3.5'', 2TB, SATAIII Corsair H105 Windows 10 Pro 
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XB271HU 1440p 165Hz Corsair K70 LUX RGB EVGA Supernova G2 1000 PHANTEKS Enthoo Evolv ATX Tempered Glass- Black. 
MouseMouse PadAudioAudio
Razer DeathAdder Chroma EXCO Scropion Athletics Edifier R1800BT SENNHEISER HD598 SPECIAL EDITION - BLACK 
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post #21968 of 22027
Haven't done nearly as much stability testing as I should've but after an hour of tinkering with my new water cooling loop I was able to reach 4.8Ghz @ 1.264V with my 4790K. Did only half an hour of Aida64 stability testing and a few cinebench runs.

Looking at the voltages that other chips need for 4.8Ghz I'm excited to see if I have a 5Ghz capable chip on my hands, will be posting back in a few days with more info.
post #21969 of 22027
Quote:
Originally Posted by CrazzyRussian View Post

Haven't done nearly as much stability testing as I should've but after an hour of tinkering with my new water cooling loop I was able to reach 4.8Ghz @ 1.264V with my 4790K. Did only half an hour of Aida64 stability testing and a few cinebench runs.

Looking at the voltages that other chips need for 4.8Ghz I'm excited to see if I have a 5Ghz capable chip on my hands, will be posting back in a few days with more info.

Mine does 4.8GHz @ 1.308v. I was able to reach 5GHz, but that is only gamestable.
I had 5GHz 1 hour AIDA64 extreme stable, but temps were getting close to danger zone so I didn't let it run longer.

I guess it all depends on the cooling used. You are running a custom loop and running 4.8GHz at a lower voltage so I think you should be able to reach 5GHz easy.

Also it depends on at what point you call it stable for yourself tongue.gifthumb.gif
post #21970 of 22027
I have my 4690k @ 4.2GHz with 1.18V and it was stable but recently, sometimes in games and once or twice on Windows, I noticed the game would almost freeze and run and incredible low fps and just dragging itself, but the audio would be ok. I since set the CPU stock and the issue disappeared.

Is this due to low voltage or other hardware related issue, like PSU, etc?
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