Overclock.net › Forums › Intel › Intel CPUs › Overclocking problem? i5
New Posts  All Forums:Forum Nav:

Overclocking problem? i5

post #1 of 5
Thread Starter 
I've got this i5-2500k clocked at 5.0 but in CPU-z and the ASRock utility have the multiplier changing constantly. It drops to 44 then moves up to 47 then 48 then back to 46 and just never sits on 5.0. Ideas?

450

450
Mike's Gaming Rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K Z68 Extreme7 Gen3 XFX 7970 Corsair Vengeance DDR3 1600  
RAMHard DriveOptical DriveCooling
Corsair Vengeance DDR3 1600  OCZ SSD  Samsung Blue Ray Corsair H80 
OSMonitorKeyboardPower
Windows 7 64bit HANNS-G 27inch Corsair k90 Corsair HX850 
CaseMouseMouse Pad
Corsair 650D Corsair M60 Razer Scarab 
  hide details  
Reply
Mike's Gaming Rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K Z68 Extreme7 Gen3 XFX 7970 Corsair Vengeance DDR3 1600  
RAMHard DriveOptical DriveCooling
Corsair Vengeance DDR3 1600  OCZ SSD  Samsung Blue Ray Corsair H80 
OSMonitorKeyboardPower
Windows 7 64bit HANNS-G 27inch Corsair k90 Corsair HX850 
CaseMouseMouse Pad
Corsair 650D Corsair M60 Razer Scarab 
  hide details  
Reply
post #2 of 5
I may be wrong about this, but I believe the K series is only overclocked through speedstep.. Try opening up CPU-Z while running intel burn test, or whatever your favorite stress test is, it should jump up to 5GHz under load
post #3 of 5
I'm not familiar with your particular board, but it seems it is applying a turbo state. Under load the turbo kicks in and the frequency jumps by 400 MHz or 4x multi. Or alternatively, you have Speedstep enabled. It may be throttling down at idle to save power.
My System
(17 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k Asus P8Z68-V Radeon HD4670 Samsung MV-3V2G3D/US low profile  
Hard DriveHard DriveHard DriveOptical Drive
Samsung HD503HI  Samsung 830 Series SSD 128 GB Samsung HD155UI Lite-on IHOS-104 Blu Ray 
CoolingOSMonitorKeyboard
Thermalright Silver Arrow Win 7 Professional HP LP2065 20" LCD Cherry MX Board 3.0 
PowerCaseAudio
Antec Earthwatts EA380D Fractal Design Arc Midi Klipsch THX 
  hide details  
Reply
My System
(17 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k Asus P8Z68-V Radeon HD4670 Samsung MV-3V2G3D/US low profile  
Hard DriveHard DriveHard DriveOptical Drive
Samsung HD503HI  Samsung 830 Series SSD 128 GB Samsung HD155UI Lite-on IHOS-104 Blu Ray 
CoolingOSMonitorKeyboard
Thermalright Silver Arrow Win 7 Professional HP LP2065 20" LCD Cherry MX Board 3.0 
PowerCaseAudio
Antec Earthwatts EA380D Fractal Design Arc Midi Klipsch THX 
  hide details  
Reply
post #4 of 5
turn off speed step, turbo, c1e, and all c-states.
if you are using the turbo multipliers to achieve your overclock, you may have to redo your OC.
post #5 of 5
Set the core current to 300 and do the same for the turbo boost power settings. Your motherboard is trying to keep the CPU from using more wattage by lowering the multiplier I think it's set for 150 standard.
MCP
(17 items)
 
Loki
(2 items)
 
Rinzler
(13 items)
 
CPUMotherboardGraphicsRAM
Intel 2700K 5GHz Asus P8Z68 Deluxe Gen3 EVGA GTX-1080Ti (4x8GB) Crucial Balistix 1600 MHz 
Hard DriveOptical DriveCoolingOS
A bunch of SSD's LG DVD Combo Apogee Xt Rev 1.0, 360 Rad + D5 Fedora 25 
OSMonitorMonitorMonitor
Windows 10 Acer 32" 4k Acer 32" 4k Wacom Cintiq 27 QHD 
KeyboardPowerCaseMouse
Ducky Corsair AX850 Coolermaster HAF-X Corsair 
Audio
Xonar DG 
CPUGraphics
Intel i7-4558U Intel Iris 
CPUMotherboardGraphicsRAM
i7 720QM Proprietary GTX 260M 4 gb DDR3 1066 
Hard Drive
500 GB WD Caviar Black 
  hide details  
Reply
MCP
(17 items)
 
Loki
(2 items)
 
Rinzler
(13 items)
 
CPUMotherboardGraphicsRAM
Intel 2700K 5GHz Asus P8Z68 Deluxe Gen3 EVGA GTX-1080Ti (4x8GB) Crucial Balistix 1600 MHz 
Hard DriveOptical DriveCoolingOS
A bunch of SSD's LG DVD Combo Apogee Xt Rev 1.0, 360 Rad + D5 Fedora 25 
OSMonitorMonitorMonitor
Windows 10 Acer 32" 4k Acer 32" 4k Wacom Cintiq 27 QHD 
KeyboardPowerCaseMouse
Ducky Corsair AX850 Coolermaster HAF-X Corsair 
Audio
Xonar DG 
CPUGraphics
Intel i7-4558U Intel Iris 
CPUMotherboardGraphicsRAM
i7 720QM Proprietary GTX 260M 4 gb DDR3 1066 
Hard Drive
500 GB WD Caviar Black 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
Overclock.net › Forums › Intel › Intel CPUs › Overclocking problem? i5