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2600k on ASRock Z68 Extreme 4

post #1 of 12
Thread Starter 
I just set up my new i7 2600k and ASRock Z68 Extreme system a couple weeks ago. Overall, the system is killer. I have Windows 7 64bit installed on a 64GB SSD drive. The software I use for work is a finite element analysis software that heavily utilizes CPU resources. I figured I would overclock the 2600k mildly to decrease the amount of time it takes to run reports. I am new to overclocking, and haven't done it before, so I figured the 2600k was a good place to start as it is simple to OC. I disabled spread spectrum and left everything else on auto, and increased the multiplier to 44x. I've run Intel Burn it in and Prime95 and it seems stable for all of them. Is it really possible to hit 4.4GHz with everything on auto like that? Or do I need to run the benchmarks longer? (I ususally run them 15 minutes at a time, max temperature is around 60degC with Corsair H50 cooling). Let me know, thanks for the help.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600k @ 4.4GHz ASRock Z68 Extreme 4 Dual GTS 450 8GB GSkill Sniper 1866 
Hard DriveOSMonitorPower
64GB Crucial SSD and 500 GB storage Windows 7 64bit 3 Viewsonic LCD's Corsair 750W 
Case
Coolermaster HAF 942 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600k @ 4.4GHz ASRock Z68 Extreme 4 Dual GTS 450 8GB GSkill Sniper 1866 
Hard DriveOSMonitorPower
64GB Crucial SSD and 500 GB storage Windows 7 64bit 3 Viewsonic LCD's Corsair 750W 
Case
Coolermaster HAF 942 
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post #2 of 12
dont leave all of them on auto...especially the vcore.it's better to manually adjust them,for stability,run them for at least an hour for IBT/Prime95 for the most impatient.
Maxim
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7-2600k ASUS Maximus IV Extreme EVGA GeForce GTX 580 3072MB Hydro Copper 2 x3 G.Skill Sniper 1600 8gb 
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OCZ Vertex 3 SSD 120GB/2x Samsung Spinpoint F3 1TB Lite On iHBS212 12x Blu-Ray Burner /w LightScribe Win7 Ultimate 64Bit Dell UltraSharp U2311H 
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RAZER BW Ultimate Mech. KB CoolerMaster Silent Pro 1200W NZXT Phantom RAZER Naga Epic Elite Gaming Mouse 
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Maxim
(13 items)
 
  
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Intel Core i7-2600k ASUS Maximus IV Extreme EVGA GeForce GTX 580 3072MB Hydro Copper 2 x3 G.Skill Sniper 1600 8gb 
Hard DriveOptical DriveOSMonitor
OCZ Vertex 3 SSD 120GB/2x Samsung Spinpoint F3 1TB Lite On iHBS212 12x Blu-Ray Burner /w LightScribe Win7 Ultimate 64Bit Dell UltraSharp U2311H 
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RAZER BW Ultimate Mech. KB CoolerMaster Silent Pro 1200W NZXT Phantom RAZER Naga Epic Elite Gaming Mouse 
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post #3 of 12
Thread Starter 
Gotcha...I'm sure this is on here somewhere, but what is a good starting voltage for 4.4 GHz?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600k @ 4.4GHz ASRock Z68 Extreme 4 Dual GTS 450 8GB GSkill Sniper 1866 
Hard DriveOSMonitorPower
64GB Crucial SSD and 500 GB storage Windows 7 64bit 3 Viewsonic LCD's Corsair 750W 
Case
Coolermaster HAF 942 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600k @ 4.4GHz ASRock Z68 Extreme 4 Dual GTS 450 8GB GSkill Sniper 1866 
Hard DriveOSMonitorPower
64GB Crucial SSD and 500 GB storage Windows 7 64bit 3 Viewsonic LCD's Corsair 750W 
Case
Coolermaster HAF 942 
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post #4 of 12
Quote:
Originally Posted by saintpcr;14269037 
Gotcha...I'm sure this is on here somewhere, but what is a good starting voltage for 4.4 GHz?

4.4 is good to start I think or may be a bit lower.
SB OC is pretty easy untill around 4.4~4.6. After that gets a bit harder.
I have similar set up as yours (P67 Extreme4, i5 2500k).
2600K needs a bit more vcore than 2500k.
I can get to 4.6 stable at 1.312v but that is low side vcore wise.
You might want to start from 1.350 and start back it down as you test.
Or you may start low and go up until you don't get BSOD.
I usually put more vcore and back it down. When you get BSOD, you just found the lowest limit of your vcore.
Also you should use fixed voltage first untill you know what kind of voltage it needs to be stable. Then you may move it to off set mode or like me, I keep it fixed. For 4.4, I don't think you need to touch anything other than vcore.
Make sure you put default RAM timings and voltage manually.
(It is better to OC RAM after you made your CPU OC stable.)
i5 2500K GTX570HD
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500K @ 4.8GHz 1.384V AsRock P67 Extreme4 (B3) UEFI3.19 EVGA GTX 570HD SC 930/1950 G.Skill RipjawsX DDR3 PC12800 2x4GB@1866 9-10-9-28 
Hard DriveOptical DriveCoolingOS
Crucial M4 SSD 128GB, 1x 500GB WD, 2x1TB WD Samsung DL DVD Writer Noctua NH-D14 Windows 7 Ultimate 64Bit SP1 
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i5 2500K GTX570HD
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500K @ 4.8GHz 1.384V AsRock P67 Extreme4 (B3) UEFI3.19 EVGA GTX 570HD SC 930/1950 G.Skill RipjawsX DDR3 PC12800 2x4GB@1866 9-10-9-28 
Hard DriveOptical DriveCoolingOS
Crucial M4 SSD 128GB, 1x 500GB WD, 2x1TB WD Samsung DL DVD Writer Noctua NH-D14 Windows 7 Ultimate 64Bit SP1 
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Asus VG248QE Steelseries 6GV2 Rosewill Capstone 650W Corsair 600T White 
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post #5 of 12
Thread Starter 
Thanks for the info....I am using 1866 GSkill RAM at default settings. If i manually set the voltage at a value, will the voltage go less than that when it is at a 16x and low load or does it stay at the manually set value?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600k @ 4.4GHz ASRock Z68 Extreme 4 Dual GTS 450 8GB GSkill Sniper 1866 
Hard DriveOSMonitorPower
64GB Crucial SSD and 500 GB storage Windows 7 64bit 3 Viewsonic LCD's Corsair 750W 
Case
Coolermaster HAF 942 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600k @ 4.4GHz ASRock Z68 Extreme 4 Dual GTS 450 8GB GSkill Sniper 1866 
Hard DriveOSMonitorPower
64GB Crucial SSD and 500 GB storage Windows 7 64bit 3 Viewsonic LCD's Corsair 750W 
Case
Coolermaster HAF 942 
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post #6 of 12
Quote:
Originally Posted by saintpcr;14269227 
Thanks for the info....I am using 1866 GSkill RAM at default settings. If i manually set the voltage at a value, will the voltage go less than that when it is at a 16x and low load or does it stay at the manually set value?
RAM stays the same if you set it manually.
But you may have to back down your ram to 1600 if you are going higher than 4.6GHz in the future.
But for now 1866 default setting should work just fine.
More you go higher the CPU clock, it gets harder for RAM to keep up.
Other settings that affects RAM are VTT Voltage (=VCCIO, Internal memory controller voltage. **NOT VCCSA. Don't change VCCSA. That is a system agent voltage that shouldn't be changed.) and of course the DRAM voltage.
i5 2500K GTX570HD
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500K @ 4.8GHz 1.384V AsRock P67 Extreme4 (B3) UEFI3.19 EVGA GTX 570HD SC 930/1950 G.Skill RipjawsX DDR3 PC12800 2x4GB@1866 9-10-9-28 
Hard DriveOptical DriveCoolingOS
Crucial M4 SSD 128GB, 1x 500GB WD, 2x1TB WD Samsung DL DVD Writer Noctua NH-D14 Windows 7 Ultimate 64Bit SP1 
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Asus VG248QE Steelseries 6GV2 Rosewill Capstone 650W Corsair 600T White 
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i5 2500K GTX570HD
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500K @ 4.8GHz 1.384V AsRock P67 Extreme4 (B3) UEFI3.19 EVGA GTX 570HD SC 930/1950 G.Skill RipjawsX DDR3 PC12800 2x4GB@1866 9-10-9-28 
Hard DriveOptical DriveCoolingOS
Crucial M4 SSD 128GB, 1x 500GB WD, 2x1TB WD Samsung DL DVD Writer Noctua NH-D14 Windows 7 Ultimate 64Bit SP1 
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Asus VG248QE Steelseries 6GV2 Rosewill Capstone 650W Corsair 600T White 
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post #7 of 12
I have the same chip and motherboard as you only I use 2 raided ssds. With the new bios update for that motherboard I run 4.4 on auto all day everyday with everything enabled and it doesn't even blink. I have a Scythe Scmg-2100 Mugen-2 Rev.b with the default fan on one side and a Lian-li 120 on the other at 1500rpm running straight through the exhaust 120. Stays nice and cool and quiet on auto. Runs solid through testing although I'd bump the voltage up a bit 1.35ish max for extreme conditions such as folding or prime95. But yea, I'm in the crowd that thinks prime95 is useless since you will never hit that demand in a real world scenario. Intel burn test is a much better representative of real world conditions. Even when you are beating your chip to death it's going to be intermittently allowing dips and draws to the envelope. I use mine to render out test frames for animation or long burns with a global illumination renderer. Even with that beating it still stays cool and stable as long as it's not running hours on end at 100% draw. I can easily push my d2 chip past 4.6 with a sticky voltage setting but that extra couple notches just isn't worth the heat/risk/headache/noise @ 4.4 these 2600K's are cool and quiet beasts. I keep my chips under 72C at all times. My system specs are in the forum somewhere under "darkstar". I was just to lazy to come to this site I barely use anymore and update my profile.
DarkStar
(13 items)
 
  
CPUMotherboardGraphicsRAM
2600K@4.4 HT Auto ASROCK|P67 EXTREME4 (B3) EVGA 560TI SC Crysis (SLI) 4Gx2|G.SKIL F3-17000CL9D 
Hard DriveOptical DriveOSMonitor
SSD 64G|ADATA AS599S/HD 1T|SAMSUNG HD103SJ 32M 7K BD BURNER LITE-ON | IHBS212 R Win7 64 bit Pro BenQFP241VW Duals 
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EclipseII SEASONIC|SS-850HT SILVER ANTEC|THREE HUNDRED ILLUSION R Mamba 
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Dell 
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DarkStar
(13 items)
 
  
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2600K@4.4 HT Auto ASROCK|P67 EXTREME4 (B3) EVGA 560TI SC Crysis (SLI) 4Gx2|G.SKIL F3-17000CL9D 
Hard DriveOptical DriveOSMonitor
SSD 64G|ADATA AS599S/HD 1T|SAMSUNG HD103SJ 32M 7K BD BURNER LITE-ON | IHBS212 R Win7 64 bit Pro BenQFP241VW Duals 
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post #8 of 12
Quote:
Originally Posted by neobloodline;14269625 
I have the same chip and motherboard as you only I use 2 raided ssds. With the new bios update for that motherboard I run 4.4 on auto all day everyday with everything enabled and it doesn't even blink. I have a Scythe Scmg-2100 Mugen-2 Rev.b with the default fan on one side and a Lian-li 120 on the other at 1500rpm running straight through the exhaust 120. Stays nice and cool and quiet on auto. Runs solid through testing although I'd bump the voltage up a bit 1.35ish max for extreme conditions such as folding or prime95. But yea, I'm in the crowd that thinks prime95 is useless since you will never hit that demand in a real world scenario. Intel burn test is a much better representative of real world conditions. Even when you are beating your chip to death it's going to be intermittently allowing dips and draws to the envelope. I use mine to render out test frames for animation or long burns with a global illumination renderer. Even with that beating it still stays cool and stable as long as it's not running hours on end at 100% draw. I can easily push my d2 chip past 4.6 with a sticky voltage setting but that extra couple notches just isn't worth the heat/risk/headache/noise @ 4.4 these 2600K's are cool and quiet beasts. I keep my chips under 72C at all times. My system specs are in the forum somewhere under "darkstar". I was just to lazy to come to this site I barely use anymore and update my profile.

For regarding stress testing, it is the other way for me.
I can pass IBT, LinX w/AVX all sorts of different RAM and work load setting all fine.
But Prime95 Blend for 12Hours gives me error.
the new AVX instruction based tests are good for knowing how stable your settings are for short period of time.
It is a quick test. But for true stress test to make your system lock solid for hours under stress is to use Prime95 Blend test for at least 10+ hours.
There is no other way.
i5 2500K GTX570HD
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500K @ 4.8GHz 1.384V AsRock P67 Extreme4 (B3) UEFI3.19 EVGA GTX 570HD SC 930/1950 G.Skill RipjawsX DDR3 PC12800 2x4GB@1866 9-10-9-28 
Hard DriveOptical DriveCoolingOS
Crucial M4 SSD 128GB, 1x 500GB WD, 2x1TB WD Samsung DL DVD Writer Noctua NH-D14 Windows 7 Ultimate 64Bit SP1 
MonitorKeyboardPowerCase
Asus VG248QE Steelseries 6GV2 Rosewill Capstone 650W Corsair 600T White 
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Steelseries Sensei Steelseries Qck Mini 
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i5 2500K GTX570HD
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500K @ 4.8GHz 1.384V AsRock P67 Extreme4 (B3) UEFI3.19 EVGA GTX 570HD SC 930/1950 G.Skill RipjawsX DDR3 PC12800 2x4GB@1866 9-10-9-28 
Hard DriveOptical DriveCoolingOS
Crucial M4 SSD 128GB, 1x 500GB WD, 2x1TB WD Samsung DL DVD Writer Noctua NH-D14 Windows 7 Ultimate 64Bit SP1 
MonitorKeyboardPowerCase
Asus VG248QE Steelseries 6GV2 Rosewill Capstone 650W Corsair 600T White 
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Steelseries Sensei Steelseries Qck Mini 
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post #9 of 12
Thread Starter 
Neo, what BIOS revision are you running? Mine is 1.40. I agree with you...4.4 is a good mix of performance and safety. I'm hesitant to go beyond that with my limiter OC knowledge. I don't mind setting a manual voltage though. I will rerun prime 95 for an extended period and see what happens
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600k @ 4.4GHz ASRock Z68 Extreme 4 Dual GTS 450 8GB GSkill Sniper 1866 
Hard DriveOSMonitorPower
64GB Crucial SSD and 500 GB storage Windows 7 64bit 3 Viewsonic LCD's Corsair 750W 
Case
Coolermaster HAF 942 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600k @ 4.4GHz ASRock Z68 Extreme 4 Dual GTS 450 8GB GSkill Sniper 1866 
Hard DriveOSMonitorPower
64GB Crucial SSD and 500 GB storage Windows 7 64bit 3 Viewsonic LCD's Corsair 750W 
Case
Coolermaster HAF 942 
  hide details  
Reply
post #10 of 12
Quote:
Originally Posted by saintpcr;14269895 
Neo, what BIOS revision are you running? Mine is 1.40. I agree with you...4.4 is a good mix of performance and safety. I'm hesitant to go beyond that with my limiter OC knowledge. I don't mind setting a manual voltage though. I will rerun prime 95 for an extended period and see what happens

The newest one is 1.9 now I think. It's on their site, you can update right from windows just make sure you get back in the bios on reboot and switch back the settings and the ram voltage. I run the ripjaw 2100 8 gig set at 9-9-9-12 2t@1.65v i think. A lot of peoples problems with prime is the ram getting beat to death more than these 2600K's in my opinion. I got a 120mm fan sucking the heat right off these ram chips so they are bulletproof. I don't mean to dismiss prime95, a tool is a tool. I was just telling you guys that if you are passing the intel burn test under maximum settings for a decent amount of time you are golden. It is truly a much more representative form of generating a good idea how your chips are going to run. All the worrying and fretting over prime95 all the time around here and other forums is kind of a waste of hair in my opinion. I don't care if my computer dumps a blue screen after 15 hours of 100% duty on a program I would never use but only once every 2 years or so, I would dump something blue also if I had to do that. You don't want to be pushing that many watts through any piece of electronics that long without a break.
DarkStar
(13 items)
 
  
CPUMotherboardGraphicsRAM
2600K@4.4 HT Auto ASROCK|P67 EXTREME4 (B3) EVGA 560TI SC Crysis (SLI) 4Gx2|G.SKIL F3-17000CL9D 
Hard DriveOptical DriveOSMonitor
SSD 64G|ADATA AS599S/HD 1T|SAMSUNG HD103SJ 32M 7K BD BURNER LITE-ON | IHBS212 R Win7 64 bit Pro BenQFP241VW Duals 
KeyboardPowerCaseMouse
EclipseII SEASONIC|SS-850HT SILVER ANTEC|THREE HUNDRED ILLUSION R Mamba 
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Dell 
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DarkStar
(13 items)
 
  
CPUMotherboardGraphicsRAM
2600K@4.4 HT Auto ASROCK|P67 EXTREME4 (B3) EVGA 560TI SC Crysis (SLI) 4Gx2|G.SKIL F3-17000CL9D 
Hard DriveOptical DriveOSMonitor
SSD 64G|ADATA AS599S/HD 1T|SAMSUNG HD103SJ 32M 7K BD BURNER LITE-ON | IHBS212 R Win7 64 bit Pro BenQFP241VW Duals 
KeyboardPowerCaseMouse
EclipseII SEASONIC|SS-850HT SILVER ANTEC|THREE HUNDRED ILLUSION R Mamba 
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Dell 
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