Public bug reported: Bug #379873 for my hardware: Intel E3300 on Gigabyte EP45-UD3L.
The stock speed of Intel E3300 is 2.5 GHz (200*12.5). I had pushed the FSB from 200 MHz to 300 MHz in the BIOS, giving 3.75 GHz (300*12.5). However, "cat /proc/cpuinfo" and "cpufreq-info" incorrectly shows 3.33, 2.67, 2.13, 1.6 GHz, which are probably based on 266 MHz FSB (266*12.5=3.33, 266*10=2.67, 266*8=2.13, 266*6=1.6). "dmidecode --type processor" shows it at 3.75 GHz all the time, no matter which frequency or governor was selected in CPU Frequency Scaling Monitor. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: linux-image-3.8.0-35-generic 3.8.0-35.50 ProcVersionSignature: Ubuntu 3.8.0-35.50-generic 3.8.13.13 Uname: Linux 3.8.0-35-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.9.2-0ubuntu8.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC4: jkuang 2308 F.... pulseaudio /dev/snd/controlC3: jkuang 2308 F.... pulseaudio /dev/snd/controlC2: jkuang 2308 F.... pulseaudio /dev/snd/controlC0: jkuang 2308 F.... pulseaudio Date: Tue Dec 17 11:16:02 2013 InstallationDate: Installed on 2012-02-02 (684 days ago) InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111011) MachineType: Gigabyte Technology Co., Ltd. EP45-UD3L MarkForUpload: True ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-35-generic root=UUID=9809d504-4a1e-433d-8cdb-269df2cdb3e2 ro quiet splash RelatedPackageVersions: linux-restricted-modules-3.8.0-35-generic N/A linux-backports-modules-3.8.0-35-generic N/A linux-firmware 1.106 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: Upgraded to raring on 2013-04-07 (254 days ago) dmi.bios.date: 01/27/2010 dmi.bios.vendor: Award Software International, Inc. dmi.bios.version: F9 dmi.board.name: EP45-UD3L dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF9:bd01/27/2010:svnGigabyteTechnologyCo.,Ltd.:pnEP45-UD3L:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnEP45-UD3L:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr: dmi.product.name: EP45-UD3L dmi.sys.vendor: Gigabyte Technology Co., Ltd. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug package-from-proposed raring -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1261851 Title: CPU frequency reported incorrectly after overclocking Status in “linux” package in Ubuntu: New Bug description: Bug #379873 for my hardware: Intel E3300 on Gigabyte EP45-UD3L. The stock speed of Intel E3300 is 2.5 GHz (200*12.5). I had pushed the FSB from 200 MHz to 300 MHz in the BIOS, giving 3.75 GHz (300*12.5). However, "cat /proc/cpuinfo" and "cpufreq-info" incorrectly shows 3.33, 2.67, 2.13, 1.6 GHz, which are probably based on 266 MHz FSB (266*12.5=3.33, 266*10=2.67, 266*8=2.13, 266*6=1.6). "dmidecode --type processor" shows it at 3.75 GHz all the time, no matter which frequency or governor was selected in CPU Frequency Scaling Monitor. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: linux-image-3.8.0-35-generic 3.8.0-35.50 ProcVersionSignature: Ubuntu 3.8.0-35.50-generic 3.8.13.13 Uname: Linux 3.8.0-35-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.9.2-0ubuntu8.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC4: jkuang 2308 F.... pulseaudio /dev/snd/controlC3: jkuang 2308 F.... pulseaudio /dev/snd/controlC2: jkuang 2308 F.... pulseaudio /dev/snd/controlC0: jkuang 2308 F.... pulseaudio Date: Tue Dec 17 11:16:02 2013 InstallationDate: Installed on 2012-02-02 (684 days ago) InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111011) MachineType: Gigabyte Technology Co., Ltd. EP45-UD3L MarkForUpload: True ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-35-generic root=UUID=9809d504-4a1e-433d-8cdb-269df2cdb3e2 ro quiet splash RelatedPackageVersions: linux-restricted-modules-3.8.0-35-generic N/A linux-backports-modules-3.8.0-35-generic N/A linux-firmware 1.106 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: Upgraded to raring on 2013-04-07 (254 days ago) dmi.bios.date: 01/27/2010 dmi.bios.vendor: Award Software International, Inc. dmi.bios.version: F9 dmi.board.name: EP45-UD3L dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF9:bd01/27/2010:svnGigabyteTechnologyCo.,Ltd.:pnEP45-UD3L:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnEP45-UD3L:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr: dmi.product.name: EP45-UD3L dmi.sys.vendor: Gigabyte Technology Co., Ltd. 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