This one has been kicking my butt for a while and I just can't seem to sort it out.
Laptop is an HP 15-f039wm, running Win10 Home, with an Intel Celeron N2840 CPU:
http://ark.intel.com/products/82103/Intel-Celeron-Processor-N2840-1M-Cache-up-to-2_58-GHz
A while back (laptop isn't mine), the user noticed that it was now running very slow. Turns out the CPU speed is horribly lower than it should be. It's only running at 500 MHz (yes, 0.5 GHz) via a multiplier of 6x83.333 MHz even when under heavy load. I think the multiplier should be more like 26.
The issue isn't hardware related at all: I can take a test HDD, put it in, set it up with a fresh Win10 install and the CPU is fine... idling low, but jumping up high all the way to rated speed under load. But I'd like to save this existing Windows/app environment if at all possible, and fix the issue surgically.
I've tried updating the BIOS (there's also no BIOS settings worth anything or applicable as far as I can tell... it's pretty anaemic). I've also tried updating all the Win10 drivers HP has available for this model. No change.
Any thoughts or advice?
(My technical skill level is extremely high so feel free to ask me to do whatever or provide any info you need, without dumbing it down or painful hand-holding instruction.)
Laptop is an HP 15-f039wm, running Win10 Home, with an Intel Celeron N2840 CPU:
http://ark.intel.com/products/82103/Intel-Celeron-Processor-N2840-1M-Cache-up-to-2_58-GHz
A while back (laptop isn't mine), the user noticed that it was now running very slow. Turns out the CPU speed is horribly lower than it should be. It's only running at 500 MHz (yes, 0.5 GHz) via a multiplier of 6x83.333 MHz even when under heavy load. I think the multiplier should be more like 26.
The issue isn't hardware related at all: I can take a test HDD, put it in, set it up with a fresh Win10 install and the CPU is fine... idling low, but jumping up high all the way to rated speed under load. But I'd like to save this existing Windows/app environment if at all possible, and fix the issue surgically.
I've tried updating the BIOS (there's also no BIOS settings worth anything or applicable as far as I can tell... it's pretty anaemic). I've also tried updating all the Win10 drivers HP has available for this model. No change.
Any thoughts or advice?
(My technical skill level is extremely high so feel free to ask me to do whatever or provide any info you need, without dumbing it down or painful hand-holding instruction.)
As I was trying things, I had tried a BIOS update fairly early in the process. The HDD swap/fresh install test was the most-recent in order to fully eliminate hw-vs-sw.
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