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Problem with AMD CPU - Help Needed

post #1 of 8
Thread Starter 
I have a AMD Athlon II X2 250 CPU on a ASUS M4N68T-M motherboard. It's correctly identified in the BIOS, which shows it as 3000MHz, however, using CPU-Z, i notice the core speed always drops suddenly on booting from 3GHz to around 800MHz and stays that way. Any suggestions why it's happening and how i can stop it?

Lord System OBE
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Lord System OBE
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post #2 of 8
Its doing that to save power, go in Control Panel- Power Options - to change settings
"ThunderBolt"
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"ThunderBolt"
(28 items)
 
  
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Intel Core i7 980x  ASUS Rampage III Black Edition PowerColor Radeon HD 6990 (in my drawer)  Zotac GTX 780 | Founder Edition 
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Gainward GTX 780 | Phantom  Corsair Dominator 24GB Intel SSD 60GB | Seagate 3TB Steam/ Apps | Seag... Seagate 3TB Steam/ Apps 
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Seagate or WD 1TB | 2TB -90 sectors dead 2TB -90 sectors dead Standard DVD/CD+R CPU - Acrylic Black EK Waterblock 
CoolingCoolingOSMonitor
360 Radiator | x6 Silent Pro Fan 240/245 Radiator | x2 Silent Pro Fan Windows 7 Ultimate 64-Bit BenQ G2412HD @ 1920x1080  
MonitorKeyboardPowerCase
BenQ G2222HDH Custom Mechanical Matte Black | Corsair K90 | C... Corsair HX1000W Corsair Obsidian 800D Modified w/360+240 rad 
MouseMouse PadAudioAudio
Corsair M60  Keyboard - X7 Gaming Pad | Mouse - Steelseries ... Asus Thunderbold | Xonar | Killer Network Beyerdynamic DT 770 Pro | 80 OHM  
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Hitachi HRD-MD30 Stereo Receiver  Grundig MBX-II | 100w | 6 Ohm  Dynamic Sound | 15w | PS- 110 | 8 Ohm Blue Yeti Studio microphone  
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post #3 of 8
How can you have an i5 @ 4.1ghz and don't know about CnQ/Speedstep?


As the user above said, its a feature to save power. Go to Power Options in Control Panel and select "High Performance".

I suggest creating a shortcut on your desktop so you can switch between modes more easily.

High Performance Mode for gaming

Power Saver Mode for browsing the internet and other general use.
post #4 of 8
Thread Starter 
Ah, cheers! Hoped it would be something simple.

I checked power management before but couldn't see any CPU specific options, but changing it from minimal to always takes it to full speed.

From a performance point of view, is it best to keep at always on or let it regulate itself?
Lord System OBE
(13 items)
 
  
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Hard DriveOSMonitorPower
Spinny-Clicky Thingy Windows 7 64bit 27" 1080p Widescreen Thermaltake Toughpower XT 775W 
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Lord System OBE
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post #5 of 8
Quote:
Originally Posted by Gnarlydusk View Post
Ah, cheers! Hoped it would be something simple.

I checked power management before but couldn't see any CPU specific options, but changing it from minimal to always takes it to full speed.

From a performance point of view, is it best to keep at always on or let it regulate itself?
If overclocking it normally requires a bit of a higher voltage to keep stable. EDIT: My Phenom II requires just an additional 0.1v to keep it stable with this power saving so I keep it enabled and highly recommend you also to do so even when overclocking.

If not overclocking keep it enabled, it does not lower performance but saves power.
My Rig
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My Rig
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Phenom II X4 970T @ X6 LAPPED ASUS M4A785TD-V EVO XFX REF HD 6870 (1000/1200/1.26) 2x2gb DDR3 Kingston Vapor-X 1600mhz CL9 
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Crucial M4 64gb SSD + 640gb WD Windows 8 x64 22" 1080p LG flatron MS wired 600 
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post #6 of 8
i keep cool and quite enabled even when overclocked,it saves power and keeps heat down,it's silly not to really.
Lil Cutey
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Lil Cutey
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Hard DriveHard DriveHard DriveHard Drive
OCZ Nocti 120GB mSATA SSD OCZ Agility 3 OCZ Agility 4 Intenso 256gb sata III 
Optical DriveCoolingOSMonitor
Samsung External DVD Water! Windows 8 Pro 64bit Samsung 32" HDTV 
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post #7 of 8
Thread Starter 
Quote:
Originally Posted by M@st3r View Post
How can you have an i5 @ 4.1ghz and don't know about CnQ/Speedstep?
Because i'm an idiot

... And because i usually turn power management off, so it's never been an issue before. Recently did a fresh Windows install, and forgot.
Lord System OBE
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 @ 4.1Ghz Yes 6870x2 4GB DDR3 
Hard DriveOSMonitorPower
Spinny-Clicky Thingy Windows 7 64bit 27" 1080p Widescreen Thermaltake Toughpower XT 775W 
CaseMouse Pad
Ugly Mousepad Ubermaster Pro X7445 Deluxe (Watercooled) 
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Lord System OBE
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 @ 4.1Ghz Yes 6870x2 4GB DDR3 
Hard DriveOSMonitorPower
Spinny-Clicky Thingy Windows 7 64bit 27" 1080p Widescreen Thermaltake Toughpower XT 775W 
CaseMouse Pad
Ugly Mousepad Ubermaster Pro X7445 Deluxe (Watercooled) 
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post #8 of 8
Thread Starter 
Btw, thanks for the advice. I'll leave it on minimal. Just wanted to make sure it was working ok. I've overclocked CPUs in the past but never had this issue. It's been a while since i upgraded this old system and i'm sure my last motherboard didn't have any CPU power saving options (just the usually hard drive/monitor stuff) so have always turned it off.
Lord System OBE
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 @ 4.1Ghz Yes 6870x2 4GB DDR3 
Hard DriveOSMonitorPower
Spinny-Clicky Thingy Windows 7 64bit 27" 1080p Widescreen Thermaltake Toughpower XT 775W 
CaseMouse Pad
Ugly Mousepad Ubermaster Pro X7445 Deluxe (Watercooled) 
  hide details  
Reply
Lord System OBE
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 @ 4.1Ghz Yes 6870x2 4GB DDR3 
Hard DriveOSMonitorPower
Spinny-Clicky Thingy Windows 7 64bit 27" 1080p Widescreen Thermaltake Toughpower XT 775W 
CaseMouse Pad
Ugly Mousepad Ubermaster Pro X7445 Deluxe (Watercooled) 
  hide details  
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