Overclock.net › Forums › Intel › Intel CPUs › Issues w/ 2600k OC
New Posts  All Forums:Forum Nav:

Issues w/ 2600k OC

post #1 of 4
Thread Starter 
Hey overclockers,

I just got a new setup last week, and I decided it's time to overclock. It's a Sandy Bridge 2600K on a GIGABYTE GA-P67A-UD4-B3. I'm not familiar with this combination, so I checked everything against this guide here:
http://www.overclock.net/intel-general/910467-ultimate-sandy-bridge-oc-guide-p67a.html

I set up everything in cmos for a very basic OC just to test, but when I booted into Windows, CPU-Z and Core Temp still show my clock at the original 3.4 GHz clock, even though the BIOS shows it at 4.3 GHz even after reboot. So I thought I'd go through everything I did in hopes that someone can find my error.

I changed the clock ratio to 4.3 and disabled all the throttling mechanisms. I didn't want to mess with the SVID-assigned vcore just yet, so I let it do its thing:
5816785160_215b403de8_b.jpg

Below the settings there are these stats which seem to verify the OC:
5816784532_f28649fc70_b.jpg

Except in M.I.T. Current Status it appears that the overclock only affects the turbo multipliers... but that's not what I changed in the previous screen!?!
5816218391_c04666cdbd_b.jpg

And just to verify, in Windows CPU-Z shows only 3.4 GHz (and stays at that value):
5816218991_f92b7183cb_b.jpg

I did try setting all four of the turbo clock speeds to 4.3 and even 4.5 (it throttles down to 1.6 GHz at idle and then fires up when there's a load). However, this setting doesn't allow me much control to fine-tune the OC. At 4.6 and above it crashes out. I'm also not confident in my readings on the clock speed. CPU-Z shows the overclock of 4.5; Core Temp shows the stock 3.4, but doesn't it just read the stock value? Anyway when it gets up there, Prime95 and 100% load doesn't get the CPU that hot- 65 degrees max.

Some advice please?
Sandy Bridge
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7-2600k GA-P67A-UD4-B3 Radeon HD 6950 1GB G.Skill DDR3-1600 (4x4GB) 
Hard DriveOSPowerCase
1TB Windows 7 64-bit Corsair TX750 Silverstone Raven 2 
  hide details  
Reply
Sandy Bridge
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7-2600k GA-P67A-UD4-B3 Radeon HD 6950 1GB G.Skill DDR3-1600 (4x4GB) 
Hard DriveOSPowerCase
1TB Windows 7 64-bit Corsair TX750 Silverstone Raven 2 
  hide details  
Reply
post #2 of 4
I disabled all the turbo & just set the multi to the speed I'm after, turbo isn't much use with an unlocked multi anyway...
    
CPUMotherboardGraphicsRAM
i7 990x/3930k/3770k/4770k GB x58a-OC/Asus RIVE/x79 gd65/z77 mpower/z77 MV... gtx480s/gtx580s/7970s/680s/Titan Hyper/PSC/BBSE/Hynix/Samsung 
Hard DriveOptical DriveCoolingOS
HDDs/SSDs DVD Air/water/phase/copper pot Windowz 
MonitorKeyboardPowerCase
samsung 2320 Razer Lycosa ax1200 carboard box 
Mouse
Trackball 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
i7 990x/3930k/3770k/4770k GB x58a-OC/Asus RIVE/x79 gd65/z77 mpower/z77 MV... gtx480s/gtx580s/7970s/680s/Titan Hyper/PSC/BBSE/Hynix/Samsung 
Hard DriveOptical DriveCoolingOS
HDDs/SSDs DVD Air/water/phase/copper pot Windowz 
MonitorKeyboardPowerCase
samsung 2320 Razer Lycosa ax1200 carboard box 
Mouse
Trackball 
  hide details  
Reply
post #3 of 4
Thread Starter 
That's what I intended to do, but for some reason the normal multiplier doesn't change the clock speed when I boot into Windows. I'm guessing there's some setting in there that is wrong and throws the whole thing off...
Sandy Bridge
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7-2600k GA-P67A-UD4-B3 Radeon HD 6950 1GB G.Skill DDR3-1600 (4x4GB) 
Hard DriveOSPowerCase
1TB Windows 7 64-bit Corsair TX750 Silverstone Raven 2 
  hide details  
Reply
Sandy Bridge
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7-2600k GA-P67A-UD4-B3 Radeon HD 6950 1GB G.Skill DDR3-1600 (4x4GB) 
Hard DriveOSPowerCase
1TB Windows 7 64-bit Corsair TX750 Silverstone Raven 2 
  hide details  
Reply
post #4 of 4
I have the 2500k and same P67A UD4 B3 with F4 bios plus 8GB of G-Skill ripjaw ram and these are my settings.
I loaded optimised defaults and rebooted back into bios.
everything is left at optimised defaults apart from the stuff listed below

I set IDE to ACHI mode as every thing is sata obviously no IDE connections on mobo
disabled full screen logo so i can see whats what at bootup.

Under advanced frequency settings
I set multi to x47 (not via each core)

Under Extreme Memory Profile
chose profile 1 and it auto set my ram to 1600mhz 9-9-9-24 / 1.5v and turbo mode

Under Advanced CPU Core Features
set Internal CPU PLL Overvoltage to enabled(auto means off)

Under Advanced Voltage Settings
Load line calibration (LLC)to enabled
CPU Vcore to normal
Dynamic vcore to + 0.045v
QPI/vtt to 1.100v
System Agent Voltage to 0.945v

rebooted and cpu multi x33 so i changed it back to x47 and it then kept the setting

My rig is rock solid all day an night your ram & cpu etc are different but hopefully my settings will point you in the right direction
Edited by leezaal - 6/10/11 at 8:39am
Leezaal's PC
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 2500k Gigabyte P67A UD4 B3 EVGA GTX 570 8gb G-Skill 1600mhz 
Hard DriveOptical DriveOSMonitor
Corsair F60 SSD DVD\rw x20 Win 7 Custom acer 19" widescreen 
KeyboardPowerCaseMouse
Cheap ps2 corsar 850w Modular CM Storm Scout logitech wireless 
Mouse Pad
sharkoon 
  hide details  
Reply
Leezaal's PC
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 2500k Gigabyte P67A UD4 B3 EVGA GTX 570 8gb G-Skill 1600mhz 
Hard DriveOptical DriveOSMonitor
Corsair F60 SSD DVD\rw x20 Win 7 Custom acer 19" widescreen 
KeyboardPowerCaseMouse
Cheap ps2 corsar 850w Modular CM Storm Scout logitech wireless 
Mouse Pad
sharkoon 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
Overclock.net › Forums › Intel › Intel CPUs › Issues w/ 2600k OC