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Ubuntu 13.04 not reporting overclocked CPU speeds

post #1 of 5
Thread Starter 
I have a stable 24/7 overclock that I have been running since Ubuntu 12.04, however, I recently upgraded to 13.04.

Ubuntu is no longer reporting the correct (overclocked) CPU speed within the list of available frequencies. The max is simply the stock speed now.

cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_max_freq

Is there any way to run Ubuntu at the overclocked speeds as before and as in windows?
post #2 of 5
Quote:
Originally Posted by nicefinly View Post

I have a stable 24/7 overclock that I have been running since Ubuntu 12.04, however, I recently upgraded to 13.04.

Ubuntu is no longer reporting the correct (overclocked) CPU speed within the list of available frequencies. The max is simply the stock speed now.

cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_max_freq

Is there any way to run Ubuntu at the overclocked speeds as before and as in windows?


disable the cpufreq module
    
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CPUMotherboardGraphicsRAM
Core i7 920 D0 4.2ghz HT (1.3625v) Asus R3E 2xGTX 460 (non SLi, no overclock) 6x2gb G.skill @ 6-8-6-24-1T 
Hard DriveOptical DriveOSMonitor
WD-VR 300GBx1, 2xWD 1tb,2x60gb Agility Some crappy combo burner... Arch x64 3xDell U2410f rev A02 
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X-Armor U9BL TT Toughpower 1200w (NTB more efficient) Mountain Mods Pinnacle 24 CYO Roccat Kone (R.I.P. A4Tech x7) 
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post #3 of 5
Thread Starter 
I've done that already, but somehow Ubuntu only pick sup 3.8 MhZ as the max. In windows, I'm getting 4.6 Ghz
post #4 of 5
As long as the BIOS says the correct overclock, then you are overclocked. It doesn't matter what the OS says.
post #5 of 5
Quote:
Originally Posted by nicefinly View Post

I've done that already, but somehow Ubuntu only pick sup 3.8 MhZ as the max. In windows, I'm getting 4.6 Ghz

Also, it's known that from Nehalem on /proc/cpuinfo is wrong - it's best to use i7z which is available as a binary for most distros now. Has to be run as root, I forgot all about that. i7z should report all but turbo mode frequencies properly - if you are running a turbo'd overclock that uses a turbo only multiplier, it will report what the frequency would be without that turbo mode on... on most motherboards.
I know it seems like Linux is less overclocking friendly but that fiasco is intel's fault, not Linux; also most Linux users are all about set it and forget it.
    
CPUMotherboardGraphicsRAM
Core i7 920 D0 4.2ghz HT (1.3625v) Asus R3E 2xGTX 460 (non SLi, no overclock) 6x2gb G.skill @ 6-8-6-24-1T 
Hard DriveOptical DriveOSMonitor
WD-VR 300GBx1, 2xWD 1tb,2x60gb Agility Some crappy combo burner... Arch x64 3xDell U2410f rev A02 
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X-Armor U9BL TT Toughpower 1200w (NTB more efficient) Mountain Mods Pinnacle 24 CYO Roccat Kone (R.I.P. A4Tech x7) 
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Steelpad Experience I-1 
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CPUMotherboardGraphicsRAM
Core i7 920 D0 4.2ghz HT (1.3625v) Asus R3E 2xGTX 460 (non SLi, no overclock) 6x2gb G.skill @ 6-8-6-24-1T 
Hard DriveOptical DriveOSMonitor
WD-VR 300GBx1, 2xWD 1tb,2x60gb Agility Some crappy combo burner... Arch x64 3xDell U2410f rev A02 
KeyboardPowerCaseMouse
X-Armor U9BL TT Toughpower 1200w (NTB more efficient) Mountain Mods Pinnacle 24 CYO Roccat Kone (R.I.P. A4Tech x7) 
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Steelpad Experience I-1 
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