Overclock.net › Forums › Intel › Intel CPUs › Something's underclocking my cpu!
New Posts  All Forums:Forum Nav:

Something's underclocking my cpu!

post #1 of 10
Thread Starter 
Can someone please help me out here, I'm at my wits end! Noticed something weird about my NP5135 with i7 640m today and it's bugging the crap out of me.

The multiplier stays at x14 ~ 1.9ghz max when it should be x21 ~ 2.8ghz. I think it is software related but I have no idea what is actually causing the problem.

I have not done any over/under clocking on this laptop.

The reason I think it's software related is that the multiplier correctly goes up to x21 ~ 2.8ghz as soon as I enter desktop on boot up, but quickly gets limited to x14 ~1.9ghz when windows finishes loading everything. I have tried to terminate processes one by one while running prime95 to see which one is limiting it but had no success.

Here's some screenshots of processes running. If more info is needed please give me a shout.

Specs:

i7 640m
4gig Ram
Windows 7 Home SP1
Geforce GT 425m

post #2 of 10
EDIT: Oops thought you ment GPU.
F-U-B-A-R
(29 items)
 
HTPC
(17 items)
 
 
CPUMotherboardGraphicsGraphics
Intel 3930k Asus Sabertooth X79 Sapphire R9 290 Sapphire R9 290 
RAMHard DriveHard DriveHard Drive
Corsair Vengeance 8GB 1600mhz (9-9-9-24) 1.4v Samsung 830 128gb Samsung 850 EVO 500gb WD Green 2TB 
CoolingCoolingCoolingCooling
Koolance CPU-380I BitsPower Fittings PrimoChill Advanced LRT Koolance R9 290 Waterblock 
CoolingCoolingCoolingCooling
Koolance R9 290 Waterblock XSPC Dual 5.25'' Bay Laing D5 Lamptron FC5-V2 AlphaCool NexXxos ST30 240mm 
CoolingCoolingCoolingCooling
AlphaCool NexXxos ST30 120mm AlphaCool NexXxos XT45 180mm x3 NoiseBlocker E-Loop B12-3 Silverstone Air Penetrator AP181 
CoolingOSMonitorKeyboard
Alphacool VPP655 Windows 7 Pro 64bit Dell Ultrasharp U2711 Ducky Shine 2 Red Cherry MX 
PowerCaseMouseMouse Pad
SeaSonic X-Series 1050w Corsair 650D Razer Mamba Razer Vespula 
Audio
Klipsch ProMedia 4.1's 
CPUMotherboardGraphicsRAM
Intel 3570k Asrock Z77E-ITX EVGA GTX 670 Samsung DDR3 4gb x2 
Hard DriveCoolingCoolingCooling
Crucial MSata 256gb Aqua Computer Cuplex Kryos HF Aqua Computer AquagraFX Alphacool NexXxoS ST30 240mm 
CoolingCoolingCoolingCooling
Swiftech MCP655 Gentle Typoon's AP-13 x2 Koolance Threaded Acetal Pump Base W/ Reservoir Bitspower 3/8-5/8 Matte Black Fittings 
OSMonitorKeyboardPower
Windows 7 Home 64bit LG Electronics 47LM7600 Razer Lycosa SeaSonic X-750w 
Case
Arctic BitFenix Prodigy 
  hide details  
Reply
F-U-B-A-R
(29 items)
 
HTPC
(17 items)
 
 
CPUMotherboardGraphicsGraphics
Intel 3930k Asus Sabertooth X79 Sapphire R9 290 Sapphire R9 290 
RAMHard DriveHard DriveHard Drive
Corsair Vengeance 8GB 1600mhz (9-9-9-24) 1.4v Samsung 830 128gb Samsung 850 EVO 500gb WD Green 2TB 
CoolingCoolingCoolingCooling
Koolance CPU-380I BitsPower Fittings PrimoChill Advanced LRT Koolance R9 290 Waterblock 
CoolingCoolingCoolingCooling
Koolance R9 290 Waterblock XSPC Dual 5.25'' Bay Laing D5 Lamptron FC5-V2 AlphaCool NexXxos ST30 240mm 
CoolingCoolingCoolingCooling
AlphaCool NexXxos ST30 120mm AlphaCool NexXxos XT45 180mm x3 NoiseBlocker E-Loop B12-3 Silverstone Air Penetrator AP181 
CoolingOSMonitorKeyboard
Alphacool VPP655 Windows 7 Pro 64bit Dell Ultrasharp U2711 Ducky Shine 2 Red Cherry MX 
PowerCaseMouseMouse Pad
SeaSonic X-Series 1050w Corsair 650D Razer Mamba Razer Vespula 
Audio
Klipsch ProMedia 4.1's 
CPUMotherboardGraphicsRAM
Intel 3570k Asrock Z77E-ITX EVGA GTX 670 Samsung DDR3 4gb x2 
Hard DriveCoolingCoolingCooling
Crucial MSata 256gb Aqua Computer Cuplex Kryos HF Aqua Computer AquagraFX Alphacool NexXxoS ST30 240mm 
CoolingCoolingCoolingCooling
Swiftech MCP655 Gentle Typoon's AP-13 x2 Koolance Threaded Acetal Pump Base W/ Reservoir Bitspower 3/8-5/8 Matte Black Fittings 
OSMonitorKeyboardPower
Windows 7 Home 64bit LG Electronics 47LM7600 Razer Lycosa SeaSonic X-750w 
Case
Arctic BitFenix Prodigy 
  hide details  
Reply
post #3 of 10
It's called intel speedstep and it's suppose to do that.Don't worry it ramps up when it needs too.A great feature for laptops.

And you're at your wits end?...lol
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
I5-750 4.3@1.375v Asus Maximus III Formula Asus ENGTX465 4gb G Skill 2000 Mhz.Trident @2133 9-9-9-27 
Hard DriveOptical DriveCoolingOS
OCZ VERTEX 2 50GB SSD/WD 500GB Blue/WD640GB Black Samsung DVD/RW Corsair H-50 Windows 10 home 64 Bit Retail 
MonitorKeyboardPowerCase
ASUS 24"1080P LED Asus VE248H Abs M1 Cooler master silent pro 600 modular M600 RS-60... Lian Li Lancool PCK-58 
MouseMouse Pad
Steelseries Kinzu no 
  hide details  
Reply
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
I5-750 4.3@1.375v Asus Maximus III Formula Asus ENGTX465 4gb G Skill 2000 Mhz.Trident @2133 9-9-9-27 
Hard DriveOptical DriveCoolingOS
OCZ VERTEX 2 50GB SSD/WD 500GB Blue/WD640GB Black Samsung DVD/RW Corsair H-50 Windows 10 home 64 Bit Retail 
MonitorKeyboardPowerCase
ASUS 24"1080P LED Asus VE248H Abs M1 Cooler master silent pro 600 modular M600 RS-60... Lian Li Lancool PCK-58 
MouseMouse Pad
Steelseries Kinzu no 
  hide details  
Reply
post #4 of 10
Thread Starter 
but it used to run at x21, why is it limiting it to x14 max all of a sudden?
post #5 of 10
Slash-o-Matic
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7-2600k Msi p67-gd65 560ti 8gb gskill sniper 1600 9-24 
Hard DriveOSMonitorPower
1tb spinpoint f3 win 7 64 hp/linooks 2x 23" asus led 750w xfx black 
Case
Corsair 700D 
  hide details  
Reply
Slash-o-Matic
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7-2600k Msi p67-gd65 560ti 8gb gskill sniper 1600 9-24 
Hard DriveOSMonitorPower
1tb spinpoint f3 win 7 64 hp/linooks 2x 23" asus led 750w xfx black 
Case
Corsair 700D 
  hide details  
Reply
post #6 of 10
Quote:
Originally Posted by MizTEcK View Post
but it used to run at x21, why is it limiting it to x14 max all of a sudden?
Because the cpu is idling.Try doing a quick run of prime 95 and watch it jump to where it's suppose too.
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
I5-750 4.3@1.375v Asus Maximus III Formula Asus ENGTX465 4gb G Skill 2000 Mhz.Trident @2133 9-9-9-27 
Hard DriveOptical DriveCoolingOS
OCZ VERTEX 2 50GB SSD/WD 500GB Blue/WD640GB Black Samsung DVD/RW Corsair H-50 Windows 10 home 64 Bit Retail 
MonitorKeyboardPowerCase
ASUS 24"1080P LED Asus VE248H Abs M1 Cooler master silent pro 600 modular M600 RS-60... Lian Li Lancool PCK-58 
MouseMouse Pad
Steelseries Kinzu no 
  hide details  
Reply
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
I5-750 4.3@1.375v Asus Maximus III Formula Asus ENGTX465 4gb G Skill 2000 Mhz.Trident @2133 9-9-9-27 
Hard DriveOptical DriveCoolingOS
OCZ VERTEX 2 50GB SSD/WD 500GB Blue/WD640GB Black Samsung DVD/RW Corsair H-50 Windows 10 home 64 Bit Retail 
MonitorKeyboardPowerCase
ASUS 24"1080P LED Asus VE248H Abs M1 Cooler master silent pro 600 modular M600 RS-60... Lian Li Lancool PCK-58 
MouseMouse Pad
Steelseries Kinzu no 
  hide details  
Reply
post #7 of 10
Thread Starter 
I did, running prime95 gets it stuck at 1.9ghz max.

I know it goes down to 1.4ghz on idle from speedstep but the point here is that even on 100% load from running prime95, it goes up to only 1.9ghz
post #8 of 10
Thread Starter 
anyone?
post #9 of 10
Set the power options to High Performance or Balanced.
The Wtfer
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 2600K ASUS P8Z68-V PRO EVGA GTX 465 w/ 470 Shaders/Memory/Clocks 8GB G.Skill DDR3 1866 
Hard DriveOptical DriveOSMonitor
Samsung F3 1TB LG 22X DVD±R DVD Burner Windows 7 Professional 64-Bit Dell U2311H + LG W2242S 
PowerCase
Corsair 750TX Coolermaster RC-692 Advanced 
  hide details  
Reply
The Wtfer
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 2600K ASUS P8Z68-V PRO EVGA GTX 465 w/ 470 Shaders/Memory/Clocks 8GB G.Skill DDR3 1866 
Hard DriveOptical DriveOSMonitor
Samsung F3 1TB LG 22X DVD±R DVD Burner Windows 7 Professional 64-Bit Dell U2311H + LG W2242S 
PowerCase
Corsair 750TX Coolermaster RC-692 Advanced 
  hide details  
Reply
post #10 of 10
Thread Starter 
its already on max performance profile
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
Overclock.net › Forums › Intel › Intel CPUs › Something's underclocking my cpu!