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First time overclocking i5 2500k on a fresh asrock z68 build, need feedback

post #1 of 8
Thread Starter 
Hi I've recently acquired a new gaming rig and I've immediately set down on overclocking it.


Here are the things that I've changed from default in my UEFI based on certain guides that I've found on these boards.

CPU C3: DISABLED
CPU C6: DISABLED

XMP setting: profile 1

Core voltage: offset mode +0.055 V
CPU load line calib: level 2

Adv. Turbo 50: disabled
Cpu ratio: manual x41 (to give 4.1K)
Internal PLL: disabled


Right now I've oc'd to 4.1K and so far temps have been between 60-70 under prime95 bench load (running about 1 hour now) and everything seems to work fine.

My goal is a stable 4.3K and I'm not planning to overclock past that.

I did not tamper with the turbo boost power and the short and long term settings, core limit and spread. Is it necessary to change these settings?

Ideally I would like to tinker ONLY with the CPU voltage and multiplier and leave everything else default, because I'm not too sure what those other options that I've changed do.

Also is there any way to tweak the fan a little more so that it would provide more cooling? Any other comments about safety/stability issues that might rise up?
    
CPUMotherboardGraphicsRAM
Intel Core i5-2500K ASRock Z68 Extreme3 Gen3 LGA 1155 EVGA 01G-P3-1561-AR GeForce GTX 560 Ti FPB  CORSAIR Vengeance 8GB 
Hard DriveHard DriveCoolingOS
Crucial M4 CT064M4SSD2 2.5" 64GB SATA III  Western Digital Caviar Blue WD5000AAKX 500GB 72... COOLER MASTER Hyper 212 EVO RR-212E-20PK-R2  windows 7 64bit 
MonitorKeyboardPowerCase
ASUS VH232H Glossy Black 23" 5ms Widescreen Ful... ancient keyboard found in dusty tomb Rosewill Green Series RG630-S12 630W  COOLER MASTER HAF 912 RC-912-KKN1 Black SECC/ A... 
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CPUMotherboardGraphicsRAM
Intel Core i5-2500K ASRock Z68 Extreme3 Gen3 LGA 1155 EVGA 01G-P3-1561-AR GeForce GTX 560 Ti FPB  CORSAIR Vengeance 8GB 
Hard DriveHard DriveCoolingOS
Crucial M4 CT064M4SSD2 2.5" 64GB SATA III  Western Digital Caviar Blue WD5000AAKX 500GB 72... COOLER MASTER Hyper 212 EVO RR-212E-20PK-R2  windows 7 64bit 
MonitorKeyboardPowerCase
ASUS VH232H Glossy Black 23" 5ms Widescreen Ful... ancient keyboard found in dusty tomb Rosewill Green Series RG630-S12 630W  COOLER MASTER HAF 912 RC-912-KKN1 Black SECC/ A... 
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i caught it yesterday 
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post #2 of 8
Thread Starter 
Apologies for bumping this thread. I have been running this setup for several weeks now and I would really like to hear comments about its stability and long term viability, as well as any further suggestions.
    
CPUMotherboardGraphicsRAM
Intel Core i5-2500K ASRock Z68 Extreme3 Gen3 LGA 1155 EVGA 01G-P3-1561-AR GeForce GTX 560 Ti FPB  CORSAIR Vengeance 8GB 
Hard DriveHard DriveCoolingOS
Crucial M4 CT064M4SSD2 2.5" 64GB SATA III  Western Digital Caviar Blue WD5000AAKX 500GB 72... COOLER MASTER Hyper 212 EVO RR-212E-20PK-R2  windows 7 64bit 
MonitorKeyboardPowerCase
ASUS VH232H Glossy Black 23" 5ms Widescreen Ful... ancient keyboard found in dusty tomb Rosewill Green Series RG630-S12 630W  COOLER MASTER HAF 912 RC-912-KKN1 Black SECC/ A... 
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i caught it yesterday 
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CPUMotherboardGraphicsRAM
Intel Core i5-2500K ASRock Z68 Extreme3 Gen3 LGA 1155 EVGA 01G-P3-1561-AR GeForce GTX 560 Ti FPB  CORSAIR Vengeance 8GB 
Hard DriveHard DriveCoolingOS
Crucial M4 CT064M4SSD2 2.5" 64GB SATA III  Western Digital Caviar Blue WD5000AAKX 500GB 72... COOLER MASTER Hyper 212 EVO RR-212E-20PK-R2  windows 7 64bit 
MonitorKeyboardPowerCase
ASUS VH232H Glossy Black 23" 5ms Widescreen Ful... ancient keyboard found in dusty tomb Rosewill Green Series RG630-S12 630W  COOLER MASTER HAF 912 RC-912-KKN1 Black SECC/ A... 
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i caught it yesterday 
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post #3 of 8
Personally I don't see the logic behind disabling power saving features on the 1155 platform.

There shouldn't be any need to tamper with the advanced tweaking and power options. Your board and cpu should both do 4.3Ghz with ease. I'd also be wary of the XMP profiles. Sometimes they work, sometimes they dont.

Personally, if I were you I'd reset my bios back to Optimized Defaults. Change your core multiplier to x43, set offset voltage to +0.055v, and manually enter in your four primary memory timings and dram voltage as specified by your memory mfg. If you get a 0x0124 error up your offset voltage by .005 and maybe add a little LLC.

Save, boot into Memtest 86+ and run memtest for a couple hours (at least one full test of all eight subroutines - the longer the better) If that passes boot into Windows and run Prime95 for a couple hours. If those pass your should be good to go.

Personally I don't consider a rig toaster stable until I've passed an overnight run of Memtest and an eight to ten hour run of Prime95. So that would be my next step if it passes the short checks.
wevs rig
(19 items)
 
  
CPUMotherboardGraphicsRAM
i7 3770K Gigabyte GA-Z77X-UD5H MSI GTX 670 PE OC x2 SLi Team xTreem 16Gb (2x4Gb) DDR3 2400Mhz 
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Crucial C300 128Gb x2 RAID0  SK Hynix SH910 128Gb x2 RAID0 Western Digital Black Edition 1Tb Western Digital Black Edition 640Gb 
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Asus DVD / Bluray LG Bluray / Burner Custom H20 - Swiftech, XSPC Windows 7 Pro x64 
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Acer P243Waid Razer Black Widow Ultimate Corsair HX1000 Corsair C70 White Edition 
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wevs rig
(19 items)
 
  
CPUMotherboardGraphicsRAM
i7 3770K Gigabyte GA-Z77X-UD5H MSI GTX 670 PE OC x2 SLi Team xTreem 16Gb (2x4Gb) DDR3 2400Mhz 
Hard DriveHard DriveHard DriveHard Drive
Crucial C300 128Gb x2 RAID0  SK Hynix SH910 128Gb x2 RAID0 Western Digital Black Edition 1Tb Western Digital Black Edition 640Gb 
Optical DriveOptical DriveCoolingOS
Asus DVD / Bluray LG Bluray / Burner Custom H20 - Swiftech, XSPC Windows 7 Pro x64 
MonitorKeyboardPowerCase
Acer P243Waid Razer Black Widow Ultimate Corsair HX1000 Corsair C70 White Edition 
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Razer DeathAdder SteelSeries Creative Soundblaster X-FI Titanium HD 
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post #4 of 8
Thread Starter 
Quote:
and manually enter in your four primary memory timings and dram voltage as specified by your memory mfg.

I hate to sound like a complete idiot, but could you please explain this step in more detail?
    
CPUMotherboardGraphicsRAM
Intel Core i5-2500K ASRock Z68 Extreme3 Gen3 LGA 1155 EVGA 01G-P3-1561-AR GeForce GTX 560 Ti FPB  CORSAIR Vengeance 8GB 
Hard DriveHard DriveCoolingOS
Crucial M4 CT064M4SSD2 2.5" 64GB SATA III  Western Digital Caviar Blue WD5000AAKX 500GB 72... COOLER MASTER Hyper 212 EVO RR-212E-20PK-R2  windows 7 64bit 
MonitorKeyboardPowerCase
ASUS VH232H Glossy Black 23" 5ms Widescreen Ful... ancient keyboard found in dusty tomb Rosewill Green Series RG630-S12 630W  COOLER MASTER HAF 912 RC-912-KKN1 Black SECC/ A... 
Mouse
i caught it yesterday 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Intel Core i5-2500K ASRock Z68 Extreme3 Gen3 LGA 1155 EVGA 01G-P3-1561-AR GeForce GTX 560 Ti FPB  CORSAIR Vengeance 8GB 
Hard DriveHard DriveCoolingOS
Crucial M4 CT064M4SSD2 2.5" 64GB SATA III  Western Digital Caviar Blue WD5000AAKX 500GB 72... COOLER MASTER Hyper 212 EVO RR-212E-20PK-R2  windows 7 64bit 
MonitorKeyboardPowerCase
ASUS VH232H Glossy Black 23" 5ms Widescreen Ful... ancient keyboard found in dusty tomb Rosewill Green Series RG630-S12 630W  COOLER MASTER HAF 912 RC-912-KKN1 Black SECC/ A... 
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i caught it yesterday 
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post #5 of 8
In BIOS, go to Ai tweaker and set Memory frequency to the correct value (1333, 1600, 1866, etc) for your RAM. Do the same for DRAM voltage (1.5 or 1.65). Then go to the DRAM timing control page. Enter the values printed on your RAM in the appropriate fields (in my case 9 9 9 24).

Edit: sorry, just noticed you're on an ASrock board... the above is what I did on my ASUS but hopefully not too different with your bios.
Edited by She loved E - 5/25/12 at 11:35pm
 
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Intel i7-3770k @ 4.7GHz ASRock Z77E MITX EVGA GTX 570 HD 2.5GB G.Skill Ripjaws X 2133MHz 
Hard DriveCoolingCoolingCooling
Samsung 830 128GB SSD XSPC EX120 + EX240 XSPC Raystorm Copper EK FC570 GTX SE (rev. 1.1) 
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Compact Splash
(16 items)
 
 
CPUMotherboardGraphicsRAM
Intel 3220 Intel DQ77KB Integrated. What. Corsair 1x8GB Laptop Memory 
Hard DriveOSPowerCase
Plextor 128GB mSata SSD Ubuntu Delta PA-5M10 None. 
CPUMotherboardGraphicsRAM
Intel i7-3770k @ 4.7GHz ASRock Z77E MITX EVGA GTX 570 HD 2.5GB G.Skill Ripjaws X 2133MHz 
Hard DriveCoolingCoolingCooling
Samsung 830 128GB SSD XSPC EX120 + EX240 XSPC Raystorm Copper EK FC570 GTX SE (rev. 1.1) 
CoolingCoolingCoolingCooling
Swiftech MCP35X pump 3x GT AP-15 fans Tecnofront nano res one million bitspower fittings 
OSMonitorPowerCase
Windows 7 Dell U2410 Silverstone ST45SF-G Scratch built 14.75L prototype 
CPUMotherboardRAMHard Drive
Intel i7-3770k @ 4.8GHz [DELIDDED] ASRock Z77E Samsung Low Voltage 2x4GB Crucial M4 128GB 
Hard DriveCoolingOSMonitor
WD 80GB 5400RPM Corsair H100i ubuntu 13.10 18" Dell Ultrasharp (4:3 Free Oldskool Edition) 
PowerCase
Silverstone ST45SF Compact Splash Prototype 
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post #6 of 8
Definately keep the power saving features turned on. You loose 0.01% performance for 0.01 seconds between the time the CPU clocks back up to its 100% frequency. I'd also do a google search for Dynamic Voltage on your ASRock board. It's much better than setting a static voltage as it allows your CPU to idle at under 1v to save both power and the life of your CPU.
post #7 of 8
if you use an Intel approved XMP memory @ 2133Mhz for example go into bios, and let the (XMP) set the overclock (K) providing its a (K) cpu.. 2500K

it may sound confusing but really its dead easy.. for a 1st timer until you find your feet or in ASrock, you can go into Auto-OC. which is even much easier and your, not out the money, on fast ram.

however check how much 2133Mhz XMP ram is over there your side of da pond in USA...

Forget going for a 24/7 5Ghz OC as you will need to much volts.. rather 4.6Ghz with a decent cooler like GELID GX-7 is on of the best for socket 1155.smile.gif
post #8 of 8
Hi.Umersane,

The ASROck Z68 Extreme3 GEN3 is very solid for a good price, solid component and good overclocking features BUT if you can extend your budget for an ASUS Maximus IV Gen-Z/GEN3 like this one: http://www.excaliberpc.com/611331/ [...] -gen3.html

I'd go with that for sure.
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