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OC issue with dual boot

post #1 of 8
Thread Starter 
Hi, i've got a strange issue overclocking in my pc. My mobo is a Asus P7H55-M, mi cpu Intel i3 540, 8 gb ram patriot 12800 (2x4gb), dual boot win7 - ubuntu 11.10, both 64 bit. I select in the bios xmp o.c. profile according with my ram, 19x, 200 fsb. all ok, boot, in win7 cpu-z is showing cpu frecuency at 3800 mhz, ram in 800. Last night i run prime95 for 6 hours and everithing is ok, stable overclock. I run ubuntu and the values change, 4599 mhz for cpu (!!) and 1033 for ram (??) and a hellish noise by the cpu fan (nice coolermaster vortex plus, so...).
My question is: it's possible that the os (ubuntu 11.10 64 bits in that case) change the values setting by the bios for cpu and ram frecuency?
thanks.
post #2 of 8
sounds like driver/sensor incompatibility. make sure all your programs are up to date and that the appropriate driversare installed in linux
Chimera
(17 items)
 
  
CPUMotherboardGraphicsGraphics
i5 2500k 4.8Ghz ASUS P8Z68-v PRO GEN3 Evga gtx 580 3gb Evga gtx 580 3gb 
RAMHard DriveCoolingOS
8Gb Veangence ocz agility 3 watercooled Windows 7 Ultimate 64bit 
MonitorKeyboardPowerCase
d3 - 23" acer led monitors Logitech G15 1050W modular custom built from scratch case 
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Chimera
(17 items)
 
  
CPUMotherboardGraphicsGraphics
i5 2500k 4.8Ghz ASUS P8Z68-v PRO GEN3 Evga gtx 580 3gb Evga gtx 580 3gb 
RAMHard DriveCoolingOS
8Gb Veangence ocz agility 3 watercooled Windows 7 Ultimate 64bit 
MonitorKeyboardPowerCase
d3 - 23" acer led monitors Logitech G15 1050W modular custom built from scratch case 
MouseAudioAudio
CM Inferno afterglow wireless 7.1 headphones w/ mic x-fi titanium soundcard 
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post #3 of 8
Thread Starter 
Ok thanks for the reply, but the values that ubuntu shows me are real or not? Or i must trust in the values given by Cpu-z under win7? My problem is that basically i use 24 hours ubuntu, so it's really important for me to reach a stable oc, thanks!
post #4 of 8
Of course they are not real. Trust the Bios.
Lounge Gaming
(13 items)
 
NAS
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Beast
(17 items)
 
CPUMotherboardGraphicsRAM
i7 7700k 4.9Ghz 1.312v Asus Z170i Pro Gaming MSI GAMING GTX 970 1545/3900Mhz 1.23v G.Skill Trident Z 2x8GB 3000Mhz 14-14-32 1.35v 
Hard DriveHard DriveCoolingOS
Toshiba DT01ACA300 Intel X25-M 160GB RAID0 Noctua NH-U14S Windows 10 Pro x64 
MonitorPowerCaseAudio
Pioneer PDP4280XD Corsair RM650x Fractal Node 304 B&W 602S2's, B&W M1 Surround, Arendal Sub1 
Audio
Yamaha RX-A1010 
CPUMotherboardRAMHard Drive
i7 3770 4.38Ghz 1.12v Asus P8Z77-I DELUXE Kingston HyperX FURY Series 16GB (2x 8GB) 2200M... Crucial M4 128GB 
Hard DriveHard DriveHard DriveCooling
Western Digial 3TB ACA Seagate Enterprise 2TB Western Digital Black 2TB Coolermaster Hyper 212 Evo 
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Windows 10 Pro BenQ 24" Monitor Seasonic M12II 620W Fractal Design Node 304 
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Lounge Gaming
(13 items)
 
NAS
(14 items)
 
Beast
(17 items)
 
CPUMotherboardGraphicsRAM
i7 7700k 4.9Ghz 1.312v Asus Z170i Pro Gaming MSI GAMING GTX 970 1545/3900Mhz 1.23v G.Skill Trident Z 2x8GB 3000Mhz 14-14-32 1.35v 
Hard DriveHard DriveCoolingOS
Toshiba DT01ACA300 Intel X25-M 160GB RAID0 Noctua NH-U14S Windows 10 Pro x64 
MonitorPowerCaseAudio
Pioneer PDP4280XD Corsair RM650x Fractal Node 304 B&W 602S2's, B&W M1 Surround, Arendal Sub1 
Audio
Yamaha RX-A1010 
CPUMotherboardRAMHard Drive
i7 3770 4.38Ghz 1.12v Asus P8Z77-I DELUXE Kingston HyperX FURY Series 16GB (2x 8GB) 2200M... Crucial M4 128GB 
Hard DriveHard DriveHard DriveCooling
Western Digial 3TB ACA Seagate Enterprise 2TB Western Digital Black 2TB Coolermaster Hyper 212 Evo 
OSMonitorPowerCase
Windows 10 Pro BenQ 24" Monitor Seasonic M12II 620W Fractal Design Node 304 
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post #5 of 8
Thread Starter 
Thanks! Really thanks for your fast replies
post #6 of 8
yes like he said. trust bios. i have had reliability issues with cpuz before
Chimera
(17 items)
 
  
CPUMotherboardGraphicsGraphics
i5 2500k 4.8Ghz ASUS P8Z68-v PRO GEN3 Evga gtx 580 3gb Evga gtx 580 3gb 
RAMHard DriveCoolingOS
8Gb Veangence ocz agility 3 watercooled Windows 7 Ultimate 64bit 
MonitorKeyboardPowerCase
d3 - 23" acer led monitors Logitech G15 1050W modular custom built from scratch case 
MouseAudioAudio
CM Inferno afterglow wireless 7.1 headphones w/ mic x-fi titanium soundcard 
  hide details  
Reply
Chimera
(17 items)
 
  
CPUMotherboardGraphicsGraphics
i5 2500k 4.8Ghz ASUS P8Z68-v PRO GEN3 Evga gtx 580 3gb Evga gtx 580 3gb 
RAMHard DriveCoolingOS
8Gb Veangence ocz agility 3 watercooled Windows 7 Ultimate 64bit 
MonitorKeyboardPowerCase
d3 - 23" acer led monitors Logitech G15 1050W modular custom built from scratch case 
MouseAudioAudio
CM Inferno afterglow wireless 7.1 headphones w/ mic x-fi titanium soundcard 
  hide details  
Reply
post #7 of 8
Thread Starter 
Perfect, thanks Tipless, last question: so, the OS can't change automatically values setting by the bios or it can?
post #8 of 8
It is all driver/sensor specific. Wrong driver equals wrong reading
Chimera
(17 items)
 
  
CPUMotherboardGraphicsGraphics
i5 2500k 4.8Ghz ASUS P8Z68-v PRO GEN3 Evga gtx 580 3gb Evga gtx 580 3gb 
RAMHard DriveCoolingOS
8Gb Veangence ocz agility 3 watercooled Windows 7 Ultimate 64bit 
MonitorKeyboardPowerCase
d3 - 23" acer led monitors Logitech G15 1050W modular custom built from scratch case 
MouseAudioAudio
CM Inferno afterglow wireless 7.1 headphones w/ mic x-fi titanium soundcard 
  hide details  
Reply
Chimera
(17 items)
 
  
CPUMotherboardGraphicsGraphics
i5 2500k 4.8Ghz ASUS P8Z68-v PRO GEN3 Evga gtx 580 3gb Evga gtx 580 3gb 
RAMHard DriveCoolingOS
8Gb Veangence ocz agility 3 watercooled Windows 7 Ultimate 64bit 
MonitorKeyboardPowerCase
d3 - 23" acer led monitors Logitech G15 1050W modular custom built from scratch case 
MouseAudioAudio
CM Inferno afterglow wireless 7.1 headphones w/ mic x-fi titanium soundcard 
  hide details  
Reply
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