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Help 3970x Overclocking to 4.5 Ghz ?

Kubilay
Level 7
hello guys,

i want to overclock my cpu to 4.5 ghz or 4.4 around that. I dont want to take risk alot. So what is safest way to overclock my cpu to 4.4 or 4.5 ghz ? I read some guides, but still need help :). i never do overclock before. my knowledge is limited. Also i want to keep my cpu safe. not to give extra voltages.

My specs;
CPU: 3970x
Mobo: Rampage IV Extreme (3602 bios)
Memory: G.Skill RipjawsZ 16 GB (4x4) 1866Mhz CL9 1.5v
Cooler: Corsair h100i
Psu: Corsair ax1200i

If someone share settings with me, i will be happy :).

Thanks
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27 REPLIES 27

sandro_c
Level 12
Hi Kubilay
Your temperatures under test are excellent, perhaps because you are using a voltage of Vcore too low, that does not allow you to go beyond the 4GHZ.
The tension that I use for 4.6 GHz is about 1,376 and my temp. are 63-71 ° C under test.
The 184 w are typical of Core temp, often reporting to me Powers wrong.
Hello
sandro c.

Nodens
Level 16
Yes, slowmode should be off unless you're using liquid nitrogen and you actually need it.
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vennacher
Level 7
Kubilay,
I've been playing around with my 3970x overclock. Follows is an outline of what I did, and my BIOS template. This will probably get you close. Regards

Reset bios to defaults. Reboot. Choose the gamer profile. Reboot. Choose XMP, then set my RAM voltage to 1.515v. There is some kind of droop effect and this keeps my RAM at 1.5v. Reboot. Reduce Vtt, Vccsa, to 1.2v and Vpll to 1.7v. Set Vcore to 1.350v manual, and LLC to high (for my chip/board this keeps the Vcore constant independent of load). Reboot and stress tested.

20x IBT with 8192 ram engaged stable.
24hrs Prime 95 blend with 61440 ram engaged stable.
3D Mark Vantage extreme settings stable.

EIST is active, and the computer sleep/hibernates and resumes without issue.

Template

Extreme Tweaker Menu
Ai Overclock Tuner: X.M.P
Profile 1
CPU Level Up: Disabled
Bclk freq: 100.000
CPU Strap: Auto
Clock Gen Full Reset: Enabled
Turbo Ratio: By Per Core
1-Core Ratio Limit: 47
2-Core Ratio Limit: 47
3-Core Ratio Limit: 46
4-Core Ratio Limit: 46
5-Core Ratio Limit: 45
6-Core Ratio Limit: 45
CPU Clock Gen Filter: Auto
Memory Frequency: DDR3-1866mHz
Extreme Tweaking: Disabled
EPU Power Saving Mode: Disabled
Extreme OV: Disabled
Bclk Skew: Auto
CPU Vcore : Manual Mode
CPU Vcore Manual Voltage: 1.350v (1.344-1.360v under load)
VTT CPU Voltage: 1.200v
2nd VTTCPU Voltage: Auto
CPU VCCSA Manual Voltage: 1.200v
DRAM V (A, B): 1.515v (This gives me 1.50v reading in Aida64)
DRAM V (C, D): 1.515v
CPU PLL Voltage: 1.700v
PCH Voltage: Auto
VTTDR Voltage (A, B): Auto
VTTDR Voltage (C, D): Auto
CPU Spread Spectrum: Disabled
PCIe Spread Spectrum: Disabled

DRAM Timing Control
Rampage Tweak: Auto
CAS: 9
RAS to CAS Delay: 10
RAS Pre Time: 9
RAS ACT Time: 27
Command Mode: 2
Latency Boundary: Auto

Digi+ Power Control Submenu
CPU Load-Line Calibration (LLC): High
CPU current capability: Auto
CPU Voltage Frequency: Auto
VRM Over Temperature Protection: Auto
CPU Power Duty Control: T. Probe
VCore MOS voltage Control: 7v
CPU Power Phase Control: Optimized
CPU Vcore Boot Up Voltage: Auto
VCCSA Load-Line Calibration (LLC): Regular
VCCSA Current Capability: 100%
VCCSA Fixed Frequency: 300
CPU VCCSA Boot Up Voltage: Auto
CPU VTT Switching Frequency: 1.3x
CPU VTT Over-Current Protection: Auto
DRAM-AB Current Capability: 100%
DRAM-AB Voltage Frequency: Auto
DRAM-AB Power Phase Control: Optimized
DRAM-CD Current Capability: 100%
DRAM-CD Voltage Frequency: Auto
DRAM-CD Power Phase Control: Optimized
PCH Switching Frequency: 1.3x

CPU Performance Settings Submenu:
CPU Ratio: Auto
Enhanced Intel Speedstep Technology: Enabled
Turbo mode: Enabled
Power Limit Control: Auto

Advanced Menu
CPU Configuration Submenu:
Intel Adaptive Thermal Monitor: Enabled
Hyper-threading: Enabled
Active Processor Cores: All
Limit CPUID Maximum: Disabled
Execute Disable Bit: Enabled
Hardware Prefetcher: Enabled
Adjacent Cache Line Prefetch: Enabled
DCU Streamer Prefetcher: Enabled
DCCU IP Prefetcher: Enabled
Intel Virtualization Tech: Enabled

CPU Power Management submenu:
CPU Ratio: Auto
Enhanced Intel Speedstep Technology: Enabled
Turbo mode: Enabled
CPU C1E: Auto
CPU C3 Report: Auto
CPU C6 Report: Auto
CPU C7 Report: Auto

Monitor Settings
Anti Surge Support: Enabled
MB : Rampage IV BE. - Bios 0801
CPU : i7 3970x @ 4500 MHz, Offset +0.030v, Regular LLC, Fixed Frequency 750, C1E Enabled, C3/C6/C7 Disabled
CPU VCCSA: Manual 1.150v, Regular LLC, Fixed Frequency 500
RAM : Corsair Vengeance @ 1866 MHz - 64GB
Disks : Raid0 2x Intel 520 480GB; 2x Seagate 2TB
GFX : EVGA GTX690
Audio : Creative X-FI Titanium HD
PSU : Corsair AX1200i
Optic BD\DVD : Lite-On Blu-Ray; Samsung DVDRW
Cooler\Case : Corsair H100i v2 2; Silverstone TJ07
OS : Win10 Pro 64

Hey Vennacher,

Thank you providing the detailed example. I followed your listed options and made only minor tweaks based on my RAM. BIOS reports as 4500Mhz and my system has been running fine with no crashing when using FCPx or my 3D rendering app.

My main conern though is my temps. Can you tell me if my temps are too hot? I don't use Windows so it was a bit difficult to stress test the way people normally do. The only thing I have on my Hackintosh is HWMonitor app. Here is a screengrab with my idle vs load temps.

29878

Thanks.

nansjes1
Level 7
I can reach 6 ghz on my 3970x with 20 degrees C! (with my pc turned off ^.^)

Hey Vennacher,

Thank you providing the detailed example. I followed your listed options and made only minor tweaks based on my RAM. BIOS reports as 4500Mhz and my system has been running fine with no crashing when using FCPx or my 3D rendering app.

My main conern though is my temps. Can you tell me if my temps are too hot? I don't use Windows so it was a bit difficult to stress test the way people normally do. The only thing I have on my Hackintosh is HWMonitor app. Here is a screengrab with my idle vs load temps.

29878

Thanks.

Nodens
Level 16
Your temps are fine. But I suggest these changes:

1) Drop LLC to Regular or Medium. High is overkill for 4.5. Regular if you can, otherwise medium. High increases temperatures a lot and is more risky for your chip. It can also very easily cause VRM throttling if the VRM area is not actively cooled.
2) Leave VTT, VCCSA and PLL on Auto unless they automatically get above 1.2. If you're not stable with them on Auto, check their value and increase gradually (unless you're running more than 16GB or RAM or really high RAM clocks, the auto values should be enough, assuming average CPU sample). Also it's better to increase VDIMM prior to touching these. Leave PLL alone at for 4.5, auto.
3) Take a look at Raja's Vcore offset guide and use offset mode instead of manual. It's better not to feed the chip constantly with unnecessary current. Specially if you're using EIST.
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RealBench Developer.

BRUNO_SENA
Level 7
Hi Guys,

Greetings from Brazil !


My rig consists in : Asus P9X79 Deluxe / 3970X in 4 Ghz / 64 Gb G.Skill RipJaws 2400 Mhz OC XMP / Thermaltake 1375 w / HD7990 / Corsair H100i / Cosmos 2.

So ... I already starting overclock my CPU by Intel´s Extreme Tuning Utility (XTU) just adjusting my multiplier to 45 and get 4.5 Ghz (default is 40).

But ... When I running Prime to stress testing, I see the clock droping around to 3.6 Ghz and a feel moments later, some "workers" stop your actions in Prime. Throttling ?

Directly in BIOS mode, I´ve change the multiplier mannualy to 45 and continuing receiving this results in Prime.

I see my overclock it´s not a Rock Solid enough. FACT !

Can you help me with this issues ?


Thanks in advance !


Bruno.