Dell XPS 15 7700HQ CPU won't go beyond 50% utilization, 1.5Ghz

[alpha1172]

I got my XPS 9560 a week ago. One of the first things I did was UNDERVOLT to -0.135 V (after testing 0.005 V at a time (offset).

I use a task scheduler powershell script to start it every time I login.

"$status = get-service -name "XTU3SERVICE" | Select-Object {$_.status} | format-wide
if ($status -ne "Running") { start-service -name "XTU3SERVICE"}
& 'C:\Program Files (x86)\Intel\Intel(R) Extreme Tuning Utility\Client\XTUCli.exe' -t -id 34 -v -135
sleep 4
stop-process -id $PID -force"

sometimes it works, sometimes it doesn't. When I checked HWmonitor a few minutes ago it said it was currently at -0.135 V, but it had spiked to +0.389 V to the offset. When I run benchmark applications like Intel XTU stress test, utilization doesn't go above 50%, and the frequency of the CPU never goes above 1.5Ghz. Please help me, did I damage my CPU?

Can this voltage spike damage my CPU?

 

[The Paladin]

why are you under-volting your CPU? aside the Intel stress test software, tried others? do they report the same thing ?

 

[alpha1172]

why are you under-volting your CPU? aside the Intel stress test software, tried others? do they report the same thing ?

I've known that people undervolt their CPUs to achieve better thermals and power management. I've tried AIDA64, prime95, etc. Taskmanager, HWmonitor, etc. all say utilization 50%, clock speed never goes above 1.3Ghz

Is it possible that a voltage spike damaged my CPU? I'm really so scared

Edit: When I turn on my PC and check task manager it says 80+% utilization, clock speed around 3.5Ghz. But in ANY benchmark, when it's supposedly hitting all cores and supposedly bringing all cores to 100%, that's when it says 50% 1.3Ghz. Temps right now are 40-50C, even while stress testing.

 

[The Paladin]

run passmark v9 benchmark or cinebench on it to see what results you get on the cpu testing part of it. I am curious if your readings are just abnormal from that point of view or something is going on

 

[alpha1172]

Okay I fixed the problem... stupid me...

I restored default settings in XTU. Apparently, some bug caused the Processor Core IccMax to go from 70A to 12A. Which I guess limited the power the CPU could use.

The bigger question now is, how did that setting go there? In my first post, I listed down the script I used to enable these settings by default. This error caused the CPU to underperform, I'm scared another random error will cause the CPU to get damage (i.e. voltage, amperage spike, etc.).