Laptop feels like its going in slow mode but can't find anything wrong

This must be OptiPlex bios specific issue . in most cases with normal bioses , adapter failure would lead to non booting or constant restarts not adapting to the failure itself . anyways good find .

DeathShot said:

I appreciate the help everyone gave. I did do all the standard hardware troubleshooting, not a piece of hardware I did not replace, except one.... you ready for this? The power adapter. I noticed the effects weren't as bad when I was just running a music file off the computer, but as soon as I tried to multitask or run a video or anything it started acting up. The CPU (which I replaced with the motherboard) wasn't being maxed out, so i figured its a clocking issue. Checked the bios, the only thing off about it was the communication error with the power adapter. I took the one from my laptop and plugged it in, battery started charging, everything was running fine. My guess is that something inside the power adapter got messed up (even though it both looks and tests out fine) and the computer shunted the battery to protect it, and only pulled minimum power, which it did by throttling the CPU. I guess my hope is that someone else who runs into this issue with their laptop sees this and tries a different power adapter. I have never in my life thought an external peripheral (as the power supply is on a laptop) could do this. Again, thank you for everyone who spent time checking out this thread and replying. I appreciate all the support.

Thanks for the update. I'm glad you got it sorted.

Power supply was it?

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