Total system freeze/lock-up consistantly after 5 min idle

Ever since (several times updated) v1703 my HP 840 EliteBook with powerful correct SSD and continually updated everything (incl. all drivers) will totally freeze/lock-up the entire system including the clock after 5 minutes idle (moving the cursor will reset the time limit). This also happens if it is in Sleep mode. The physical off-button and then starting always fixes it. Reliability history ALWAYS shows DIFFERENT paths and DIFFERENT failure "causes".

I have followed basically ALL the available online advice and the only cure I have not tried is disabling C-states in the (also updated) BIOS because there is no way to get into that in this HP device/BIOS. I have noted that many users have similar problems and that MS pussyfoots around but has no real idea (so there is no point in a re-install .... AND the problem started with v1703 and not with WInX Pro before that).

On this HP 840 G2 I am only allowed the following options re: interacting with BIOS (none of which let me access the C-states):

1. Update System BIOS

This I have done: BIOS M71 Ver. 01.21 / Release date 07/13/17


2. Boot Options


3. BIOS Power-On



Further, I am extremely reluctant to modify the C-states because I do NOT want to stress the machine by continually using too much power in ANY case!! (use it a lot, maybe 10 hrs/day: prefer just to turn off and re-start when it freezes)

However I did run across a way to modify the power within WinX Pro and I tried this .... which did not fix anything so I set it back to its default >

system & security / power options / change plan settings
change advanced power settings/ PCI express
expand link state power management/ turn OFF) >>

NOTE both were and are now again "Moderate Power Savings" (lspm)

AndreTen said:

It looks like wrong power saving settings to me. Check the HP support site and search for any System specific updates. These are custom HP power saving settings. I have HP pro, not Elite, so not familiar with specific file.

Did you load these settings?

Attachment 157741

Edit: and do you have any new USB gizmos attached?

I don't know how to find that in HP Support Assistant

All I found was Support Search Results | HP® Customer Support
settings update windows 10 v1703 HP 840 G2&filter=-1&client=HPSA&product=7343207

ANYWAY it all worked PERFECTLY with WinX before v1703!! (and I am not the only user with this CONTINUAL freezing/lock-up issue)

Thanks MUCH, André !

Had to easily change page from Win 8 to 10, have downloaded & installed. Will re-boot and see wha' happens; if fixed will post!

Power Options before I did this only showed the MS power plans, nothing about HP, and I had set it to
Balanced (recommended)

Now it is >
Attachment 157752

now I will "Hide additional plans"

Well it got past the 5 min mark to 8 min in idle w/o freezing, but I'll wait a few days before considering it solved. Am sure the notebook is long-term happier with optimized power settings anyway ....