BIOS - "EliteBooks" - what the HECK is "Power Monitor Circuit"?

"PowerMonitorCircuit" setting in BIOS in EliteBook 8540W or most others:
Dear HP Experts,
Good job of obliterataing information on what it does, even a degreed engineer as myself is unable to decide whether to keep enabled or disabled in BIOS!
Can you please tell what it does?
NOT whether I should enable/disable - that I decide myself, just please:
Explain its function.  Already read your "Service Manual" - but no word, all it says is setting name "PowerMonitorCirc", but not what it does !

BEFORE YOU SPEAK, GET FACTS Mr. "Professor".
FACTS:
1) My Posting date - was a special "HP Experts Day" when their employees conducted 24-hour session, monitoring Forums & answering as officials, rather than as "user-to-user" forum.
Perhaps you weren't aware 21-22 (?) September was that day.
2) Previously offered answer was a vague finding from another user, which while afraid to appear "pedantic", is not a 100% clear explanation of what Circuit does.
It's true I accept it for now as a somehwhat useful hint, but HP employees did not catch my question and not officially acknowledged that it's time to add info into Service + User's manual(s) [simply tell what this setting does].
E.g. nobody needs an explanation what "Fan Always ON while on AC" setting in BIOS - things like that are selfexplanatory to anyone who's not a moron, BUT:
But "Power Monitor Circuit" - at least they could care to add an explanation!
I am one of those who is "particular" with his Soft/Firm/Hardware settings, and I like everything be perfect.
That's Engineer in me.
I need to know settings clearly, not some vague suggestion from another user.
So I hoped for HP folks to live up to their promise on 22 September "Experts Day" to jump in to provide answers.
Perhaps they got overwhlemed as I've noticed NUMEROUS other people postings that day along with me.

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    From: [email protected]
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    Subject: CS6 has been converted from the upgrade I bought to a trial version.  What the heck is going on.
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