I have a HP Pavillion dv6-6123cl Entertainment PC with a locked bios. I use a program called K10Stat in order to get around this and overclock anyway. I have AMD A6-3400 APU with Radeon(tm) HD Graphics. I did some testing and was able to benchmark my core to a max of 3.1 ghz, and 2.15 (with the previous value as boost) for a more thermally stable setup.
When I run a specific cpu intensive game, my cpu becomes 'stuck' at 1.89ghz either though the core load is 100% and even more strangely, overheats the computer components to > 115 C (Which triggers bios shutdown), either though it isn't at full speed. When the cpu is doing other things at 2.15 Ghz, the computer runs fine (such as in the benchmark picture where the core is at 100% utilization and max frequency). Why isn't the cpu:
- Using full capacity?
- Having thermal fluctuations when 'stuck' at a lowered frequency value while being completely stable at 94C when at full capacity (2.15ghz)
EDIT: OCCT, another benchmarking software yielded some interesting results:
You can see here that the frequency starts out at the desired max frequency, but begins to drop more and more towards 1.89 ghz as the benchmark goes on.
Interesting enough it appears that the Voltage slowly decreased and the thermals raised up whenever the cpu became 'stuck' at 1.89ghz. You can see the clearly benchmarked 94 degrees I described seeing when maxed out at 2.15 ghz, before the 1.89ghz temperature fluctuation stage begins to come into play.
Also the software appears to read my 'original' cpu speed as my new overclocked value instead of the cpu stock value of 1.4ghz.