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Complete Overclocking Guide: Sandy Bridge & Ivy Bridge | *ASRock Edition* - Page 234

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post #2331 of 9536
Quote:
Originally Posted by Rydako View Post


Yep I'm using offset mode. I started out adjusting the normal offset voltage but I wasn't getting much luck, so I swapped to adjusting the turbo boost offset and keeping the normal offset at +0.005v. To be exact I had to increase the Turbo boost voltage to +0.047v to get an one hour test to run smoothly at 4.6Ghz. I have Cpu load-line calibration set to level 2.
I left prime95 running overnight and it seems after an hour and 50 minutes, one core failed. No BSODs or anything, just a rounding error. Will this impact general use? Since it was almost double the recommended running time, should I leave it or try upping the voltage a tad more?
Edit: Upped turbo voltage to the next one up and 10 minutes into the prime test I was hitting a max temp of 88c. Decided to down the clock speed to 4.5Ghz and decrease voltage to decrease temperatures. I downed Turbo voltage to 0.035 and will continue to decrease it until I fail a 10 minute test, then will increase it slowly doing one hour tests until I reach a stable voltage. I'll probably do longer tests once I get a voltage that is stable for an hour

Thanks for the info. I left my offset at +0.005 and raise my turbo to +0.047, and currently running my stress test @ 4.5GHz with 1.288V. Max temps on blend are 81 on hottest core and 75 on lowest. Maybe a bit high for some people but I'm switching out my 212 EVO for an H100i in the coming weeks. I will post what I max out at in terms of temps / clock, once I finish testing. Also I might post back some info when I get my H100i if I don't forget =P

http://valid.canardpc.com/show_oc.php?id=2638922
Edited by mookial - 1/3/13 at 2:44pm
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post #2332 of 9536
Quote:
Originally Posted by mookial View Post

Thanks for the info. I left my offset at +0.005 and raise my turbo to +0.047, and currently running my stress test @ 4.5GHz with 1.288V. Max temps on blend are 81 on hottest core and 75 on lowest. Maybe a bit high for some people but I'm switching out my 212 EVO for an H100i in the coming weeks. I will post what I max out at in terms of temps / clock, once I finish testing. Also I might post back some info when I get my H100i if I don't forget =P
http://valid.canardpc.com/show_oc.php?id=2638922

I wouldn't recommend just sticking to the voltages I used. Even though we have the same model, our chips most likely perform differently. Yours might require a lessor/higher voltage increase to get it stable at 4.6. The less voltage you can feed the chip with it being stable, the lower the temps will be and the longer the cpu will live. So it's a good idea to find the minimum voltage your chip will take while still being stable at the speed you want.

At the moment, I'm running at 4.5Ghz with a Turbo voltage of +0.012 (I think) and everything seems to be stable with a voltage of 1.272-1.280v been going for 44 Minutes with no errors yet. Hottest cores max temp at 82c. For me I'm making sure to stay below 86c, low 80's are perfectly safe for these Cpus.
post #2333 of 9536
Quote:
Originally Posted by Rydako View Post

I wouldn't recommend just sticking to the voltages I used. Even though we have the same model, our chips most likely perform differently. Yours might require a lessor/higher voltage increase to get it stable at 4.6. The less voltage you can feed the chip with it being stable, the lower the temps will be and the longer the cpu will live. So it's a good idea to find the minimum voltage your chip will take while still being stable at the speed you want.
At the moment, I'm running at 4.5Ghz with a Turbo voltage of +0.012 (I think) and everything seems to be stable with a voltage of 1.272-1.280v been going for 44 Minutes with no errors yet. Hottest cores max temp at 82c. For me I'm making sure to stay below 86c, low 80's are perfectly safe for these Cpus.

I understand, but I tested getting to 4.5 before and had voltage trouble. I didn't attempt to go that high in turbo voltage as I thought it was dangerous and the voltage will be almost max. But after some testing I am pretty stable with the 0.047. Just a coincidence I guess
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post #2334 of 9536
Seems I've got a pretty good chip. Managed to get my I5 3570k stable at 4.5Ghz with the default +0.005 offset and +0.004 turbo boost offset. Running at 1.256-1.264v. 2 Hours in Prime test and no errors. Might push for 4.6Ghz+ Later on.
post #2335 of 9536
Planning on overclocking a friends 3750K later, never played with that chip before, 4.8+ plausible?
post #2336 of 9536
Quote:
Originally Posted by Rydako View Post

Seems I've got a pretty good chip. Managed to get my I5 3570k stable at 4.5Ghz with the default +0.005 offset and +0.004 turbo boost offset. Running at 1.256-1.264v. 2 Hours in Prime test and no errors. Might push for 4.6Ghz+ Later on.

Yea 4.6 is where the vcore jumps usually begin on IB chips. I've had 4 IB chips and none of them had a problem being stable at 4.5 with anymore than a tiny vcore bump. It's when you start getting into the 4.6-4.7 range that they start to require much bigger jumps in vcore and the jumps go up exponentially with each multi jump you make.
Quote:
Originally Posted by HuwSharpe View Post

Planning on overclocking a friends 3750K later, never played with that chip before, 4.8+ plausible?

Probably not without delidding it unless you have extremely good cooling. I can only do 4.7 on my before temps get towards their limits and I'm on custom water. I'll be delidding this weekend though so temps should drop at least 20-25C allowing me to push higher.
post #2337 of 9536
3570k
4.6ghz
offset 0.005v turbo 0.04v
LLC level 5
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Daily Rig
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Bench Setup
(19 items)
 
 
CPUMotherboardGraphicsRAM
5820k 4.7Ghz @ 1.28vcore / 1.88vccin Gigabyte x99 SOC Champion EVGA GTX 1080Ti G.SKILL Trident Z 32GB 3200Mhz CL14 
Hard DriveHard DriveHard DriveHard Drive
2x Intel 520 120Gb SSD in RAID 0  Intel 180Gb 530 SSD OS Drive 2Tb WD HDD  2x Intel 730 SSD 480GB in RAID 0 
CoolingCoolingCoolingCooling
2x HWLabs GTX360 Black Ice in Push Pull EK blocks for CPU / GPU's 6x corsair sp120 2350RPM 6x Ek Vardar 120 F4's 2200rpm  
OSMonitorKeyboardPower
windows 10 XB270HU 2560x1440 - 144Hz - G-sync Razor blackwidow cooler master V1000 
CaseMouseMouse PadAudio
Corsair 780T EVGA TORQ x10 evga mouse pad 2.1 audio / Hyper X cloud II / Sennheiser Gam... 
Other
EK pump / res 
CPUMotherboardGraphicsGraphics
6600k Z170M OC Formula GTX780Ti AMD HD6450 
RAMHard DriveHard DriveHard Drive
Trident Z 3600Mhz cl16 2x8GB 120Gb intel 520 120Gb intel 520 64Gb adata ssd  
Hard DriveOptical DriveCoolingCooling
750Gb WD Black Sony  F1 Gemini CPU Pot Tek - 9 Fat 
CoolingOSMonitorPower
custom loop two 240rad's xp,W7,W8,W10 x-star 2560x1440  Rosewill Quark-650 Platinum / Antec HCP-850 Pla... 
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post #2338 of 9536
Quote:
Originally Posted by lilchronic View Post

3570k
4.6ghz
offset 0.005v turbo 0.04v
LLC level 5

Thats soo sick...
post #2339 of 9536
Quote:
Originally Posted by lilchronic View Post

3570k
4.6ghz
offset 0.005v turbo 0.04v
LLC level 5

Quote:
Originally Posted by Rydako View Post

Seems I've got a pretty good chip. Managed to get my I5 3570k stable at 4.5Ghz with the default +0.005 offset and +0.004 turbo boost offset. Running at 1.256-1.264v. 2 Hours in Prime test and no errors. Might push for 4.6Ghz+ Later on.

Try Prime testing now with 90% of RAM for 5+ hours as I've found that to be the sweet spot (at least for me) in terms of time when I never get failures after that point. Mine passes IBT at 4.7 with the same turbo and offset but takes 1.279v to be Prime stable as you can see.

post #2340 of 9536
Quote:
Originally Posted by PuffinMyLye View Post

Probably not without delidding it unless you have extremely good cooling. I can only do 4.7 on my before temps get towards their limits and I'm on custom water. I'll be delidding this weekend though so temps should drop at least 20-25C allowing me to push higher.

Oh right, i always thought 3750K were on par with the 2500K really performance wise, but i can happily run my 2500K at 4.8 stable on air at about 30 degrees, and 5.1 at about 50 degrees.

Didn't get around to overclocking it yet anyway, will post max clock when i do though.
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