I own a Packard Bell EasyNote E4 portable computer, EasyNote E4710, Model MIT-LYN02, which is actually a NEC Versa Premium computer. Recently I found out that my processor Intel Pentium M 710 (Centrino), whose speed is theoretically 1.40 GHz works always on 596 MHz. No software application has so far been able to increase its speed, including a few CPU Burn Test tools (simple Linpack GUI (http://www.xtremesystems.org/forums/showthread.php?t=201670),Intel Burn Test V2 (http://downloads.guru3d.com/IntelBurnTest-v2.3-download-2047.html) and Hot CPU Tester Pro 4(http://www.7byte.com/). None of these tools have been able to cause any change to the CPU speed or the fan speed. I reported this problem to the support people at Packard Bell in the UK, but their only reply was 'The unit shouldn't throttle the CPU unless it was getting very hot', which seems to me ridiculous: should I pre-heat the CPU with a hair-dryer to get a higher speed for my routine tasks?! I dare not do it, because the processor does not seem to have any thermal sensor. Would you kindly advise me - is the CPU multiplier is locked and the processor will never work on 1.4GHz? If it is not locked, how can I see it works at full speed? Can it be unlocked and by whom? - why isn't there a CPU thermal sensor? Below are details of the motherboard and the CPU according to Lavalys Everest Home Edition, v. 2.20.405: Motherboard: NEC COMPUTERS INTERNATIONAL Rhea B - Bus Type Intel NetBurst - Bus Width 64-bit - Real Clock: 100 MHz (QDR) - Effective Clock 400 MHz - Bandwidth 3200 MB/s CPU Type Mobile Intel Pentium M 710, 600 MHz (6 x 100) CPU Alias Dothan CPU Stepping B1 Instruction Set x86, MMX, SSE, SSE2 Original Clock 1400 MHz L1 Code Cache 32 KB L1 Data Cache 32 KB L2 Cache 2 MB (On-Die, ATC, Full-Speed) CPU Package Type 479 Ball uFCBGA / 478 Pin uFCPGA Core Voltage 0.988 - 1.340 V I/O Voltage 0.988 - 1.340 V Typical Power 3.0 - 21.0 W (depending on clock speed) Maximum Power 3.3 - 28.1 W (depending on clock speed) BIOS Type Insyde System BIOS Date 12/11/04 BIOS Manufacturer Insyde Technology, Inc.