W520 I7 loses half of its speed

Whoops, what happened? My W520 is suddenly slowed way down. Individual benchmarks for SSD and for WEI are the same but it is noticeable slower.

PCMark Vantage scores have dropped from a range near 10000 (9500 to 10500) to less than 5000 (4500 to 5000) without a change to the computer.

From the individual portions of PCMark it appears the major part of the speed loss is in CPU intensive tasks.

The Benchmarks in HWinFO32 appear to be the same except the FPU benchmark which is a lot slower (60%).

Also (and only subjective) it appears that my CPU spends way more time at 797 Mhz than at 3000 Mhz. Although I can see from both the Intel CPU monitor and HWinFO32 that it is going into turbo during the test, just not as much as it once did.

The only recent change I have made is adding the M4 in place of the C300 and that moved my PCMarkVantage scores from 9500 to about 10500 due to faster HDD intensive parts of the benchmark.

However that should not have slowed down the CPU/FPU part of the test that appears to be the culprit.

Any thoughts/recommendations? And yes, I have tried confirming most of the power and BIOS settings for changes and found nothing.

 

I know it is bad form to answer your own question, but I fixed it.

I rebooted (had done that numerous times as I was trying to find the problem) but this time went into the BIOS and rather than checked everything I actually restored to defaults and saved and exited. As soon as the boot came up I knew my speed was back and the Intel Monitor showed that lovely near constant turbo speed.

Ran PCMarkVantage and got a 10700! So simply BIOS resaving doubled my speed or more accurately restored all my speed.

Now if I could just figure out how to make the W520 faster than the X220, I would be a happy camper.

 

(Blinks) Huh?