03-13-2014 01:52 AM - edited 03-13-2014 02:02 AM
Symptoms of problem:
Model # T430 with Intel i7-3520m processor with 8 GB RAM running windows7 64 bit ultimate.
Low windows experience index for CPU 4.8 versus expected ~7.2 for i7-3520m CPU (2.9 GHz)
Observations of Problem:
CPU-Z monitor and AIDA64 showed the CPU multiplier constantly stuck at 12 which translates to 1.2 Ghz CPU speed.
Steps to resolution:
Ran all Lenovo diagnostics via F10 at boot – all passed
Ran all Intel CPU diagnostics (Intel® Processor Diagnostic Tool) – all passed
Changed setting in bios for CPU speed step and power management – no change
Changed all windows power management settings to every combination – no change
Upgraded chipset drivers – no change
Upgrade Video drivers – no change
Complete reinstall of Windows 7 – no change
Upgrade BIOS – unable to upgrade, updater refuse processing update without battery, which is unavailable now. Anyway there is no fixes for such problem in BIOS fixes list.
Any suggestions, gentlemen?
Solved! Go to Solution.
03-13-2014 07:31 AM
03-13-2014 07:40 AM