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Intel 970 Overclock Question

post #1 of 20
Thread Starter 
Hey guys,

I am owning an Intel 970 since 2012, and never tried to put it on a great overclock. These week i was playing with it, but i have a small question.

Some ppl take an low multiplier (21) with a a high bus speed (200+), and some use an high multiplier (25) with a lower bus speed.

With TurboV i am using an Multiplier of 25 with a BLCK bus speed of 158. Core voltage at 1.210v.

Can anyone explain me why running a high or lower multiplier is better? I want to reach 4.0 ghz stable. I know this is an oldskool CPU (outdated), but still works great in my opinion.

System specs:

Intel I7 970
Noctua NH U12P SE2 CPU Fan
Asus Rampage III Extreme
Corsair Dominator GT 12GB memory (9-10-9-27)
Corsair AX750 PSU
Asus ROG Strix GTX 1060 OC @ 2214mhz OCed
OCZ Revodrive x3 240GB PCI-E SSD
Lian Li V1200+ Case (BTX)

So far i reached this


Edited by Oxize - 8/8/16 at 4:40am
post #2 of 20
Thread Starter 
Seems this 3962mhz is not stable. It crashed after a few minutes BF4 + 1080p stream OBS in the background. Maybe a lower multiplier with high busspeed better?
post #3 of 20
Your CPU Vcore is too low for 4GHz. Try somewhere in the range of 1.28-1.32v.

What is your Uncore speed?
     
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i7 970 between 4 - 4.4GHz Gigabyte UD7 Rev 2.0 EVGA GTX 1070 FE 2000MHz CL8.8.8.24 1T tRFC 88 
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Samsung Evo 128Gb OCZ VertexLE 100Gb Megahalems  Windows 10 Pro 64 
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post #4 of 20
Thread Starter 
Whats uncore, and how to check it? Never heard of that.

Can i push directly my CPU Voltage to 1.28 with and BLCK of 160 so i hit 4ghz in TurboV? Are there any other things i should check first?
Edited by Oxize - 8/10/16 at 2:20am
post #5 of 20
Thread Starter 
New settings:





Running Prime95 now for a while. No crashes.
post #6 of 20
If you click on the 'Memory' tab on CPUz the NB speed is your Uncore speed.
     
CPUMotherboardGraphicsRAM
i7 970 between 4 - 4.4GHz Gigabyte UD7 Rev 2.0 EVGA GTX 1070 FE 2000MHz CL8.8.8.24 1T tRFC 88 
Hard DriveHard DriveCoolingOS
Samsung Evo 128Gb OCZ VertexLE 100Gb Megahalems  Windows 10 Pro 64 
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Asus VG248QE Corsair K70  EVGA Supernova T2 1000W Lian Li PC-A20 
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CPUMotherboardGraphicsRAM
i7 970 between 4 - 4.4GHz Gigabyte UD7 Rev 2.0 EVGA GTX 1070 FE 2000MHz CL8.8.8.24 1T tRFC 88 
Hard DriveHard DriveCoolingOS
Samsung Evo 128Gb OCZ VertexLE 100Gb Megahalems  Windows 10 Pro 64 
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Asus VG248QE Corsair K70  EVGA Supernova T2 1000W Lian Li PC-A20 
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post #7 of 20
Thread Starter 
post #8 of 20
Looks good to me. When you start getting above 3GHz uncore you'll need to raise your cpu vtt voltage but NEVER EVER go above 1.35v for the cpu vtt. That's the intel stated safe max. I personally don't like going above 1.325v as stability test loads tend to pull more sometimes.

Test with Real Bench, Intel Burn Test (IBT), and Prime95
     
CPUMotherboardGraphicsRAM
i7 970 between 4 - 4.4GHz Gigabyte UD7 Rev 2.0 EVGA GTX 1070 FE 2000MHz CL8.8.8.24 1T tRFC 88 
Hard DriveHard DriveCoolingOS
Samsung Evo 128Gb OCZ VertexLE 100Gb Megahalems  Windows 10 Pro 64 
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Asus VG248QE Corsair K70  EVGA Supernova T2 1000W Lian Li PC-A20 
MouseAudio
Sidewinder MX5 Creative Zx 
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CPUMotherboardGraphicsRAM
i7 970 between 4 - 4.4GHz Gigabyte UD7 Rev 2.0 EVGA GTX 1070 FE 2000MHz CL8.8.8.24 1T tRFC 88 
Hard DriveHard DriveCoolingOS
Samsung Evo 128Gb OCZ VertexLE 100Gb Megahalems  Windows 10 Pro 64 
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Asus VG248QE Corsair K70  EVGA Supernova T2 1000W Lian Li PC-A20 
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post #9 of 20
Thread Starter 
Quote:
Originally Posted by OCmember View Post

Looks good to me. When you start getting above 3GHz uncore you'll need to raise your cpu vtt voltage but NEVER EVER go above 1.35v for the cpu vtt. That's the intel stated safe max. I personally don't like going above 1.325v as stability test loads tend to pull more sometimes.

Test with Real Bench, Intel Burn Test (IBT), and Prime95

Okay played some battlefield 4 after the OC @ 4ghz and 1.28 vcore. First of all my GPU didnt wanted fully to throtlle to my OCed videocard clocks. I had that before. Fixed it by reinstalling the drivers.

After that i tried to play again. This time my videocard throtthled to my OCed setting, which is good. But when in BF4, i seems to have a micro-stutter each 3 a 4 seconds ingame. Its is pretty anoyying, because it almost made your character stop walking/moving.

When i had these stutters the CPU was @ 4ghz (161x25) with the 1.28vcore.
When i set it back to my old 3.8ghz(152x25 with standard 1.21vcore) i dont have the stutters. Can you explain the microstutters? Its not comming from the Videocard. Vcore needs to be higher maybe?
post #10 of 20
Yeah your vcore is probably too low. How extensive did you stability test, and what testers did you use? like i said between 1.28 and 1.32v Some chips need more but 4Ghz isn't that hard to reach.
     
CPUMotherboardGraphicsRAM
i7 970 between 4 - 4.4GHz Gigabyte UD7 Rev 2.0 EVGA GTX 1070 FE 2000MHz CL8.8.8.24 1T tRFC 88 
Hard DriveHard DriveCoolingOS
Samsung Evo 128Gb OCZ VertexLE 100Gb Megahalems  Windows 10 Pro 64 
MonitorKeyboardPowerCase
Asus VG248QE Corsair K70  EVGA Supernova T2 1000W Lian Li PC-A20 
MouseAudio
Sidewinder MX5 Creative Zx 
  hide details  
Reply
     
CPUMotherboardGraphicsRAM
i7 970 between 4 - 4.4GHz Gigabyte UD7 Rev 2.0 EVGA GTX 1070 FE 2000MHz CL8.8.8.24 1T tRFC 88 
Hard DriveHard DriveCoolingOS
Samsung Evo 128Gb OCZ VertexLE 100Gb Megahalems  Windows 10 Pro 64 
MonitorKeyboardPowerCase
Asus VG248QE Corsair K70  EVGA Supernova T2 1000W Lian Li PC-A20 
MouseAudio
Sidewinder MX5 Creative Zx 
  hide details  
Reply
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