HP EliteBook 845 G10 review: The almost perfect business laptop with AMD Zen4

[Bizarro_NikoB]

All I have to say is whatever he says, I think the opposite! This is a great computer!

[Alex280]

By default the CPU consumes roughly 4W in idle (that's insane), heating up to 100C and consuming 51W for boost workloads and I don't remember how much for the sustained, prolly around 35W. I didn't want any of that. :-)

Which CPU did you have, HS or U series? 4w at idle for the CPU alone is crazy.

Undervolting is not available but enabling enhanced power saving mode, limiting its TDP (TTP) and operating temperature are all possible which I've done.

Unfortunate that undervolting isn't possible.

Is there a specific setting called enhanced power saving mode? Or were you referring to making those TDP changes? What's TTP? How did you configure those settings?

Now idling at around 0.7W (CPU ~38C at a 22C ambient temperature), running at up to 75C with fast (boost) workloads up to 30W and sustained 20W TTP. The fan almost never is running. The system is completely silent.

How did you get idle power consumption down so low for the CPU all the way from 4W? I thought that changing the target TDP would only affect power consumption under load and shouldn't affect idle.

What's the total discharge rate when running on battery at idle at lower brightness? Which screen did you get? Real world battery life for your typical use?

Finally, how much performance do you lose in benchmarks by reducing TDP to 30W boost / 20W sustained?

I got mine but have to wait for 2 more weeks for it to arrive.

[LowerPower]

Undervolting is not available but enabling enhanced power saving mode, limiting its TDP (TTP) and operating temperature are all possible which I've done.

Now idling at around 0.7W (CPU ~38C at a 22C ambient temperature), running at up to 75C with fast (boost) workloads up to 30W and sustained 20W TTP. The fan almost never is running. The system is completely silent.

By default the CPU consumes roughly 4W in idle (that's insane), heating up to 100C and consuming 51W for boost workloads and I don't remember how much for the sustained, prolly around 35W. I didn't want any of that. :-)

Are you using the 7840HS CPU?
Could you comment in the specific settings you've used top reduce ideal power draw?

Ist there any information in an update that adresses the high idle power draw and  the resulting fan noise?

[Alex280]

@Dummy user I have the same question as well. Even when I go to settings under system -> battery and choose best efficiency and battery saver, I can't get the processor consumption down below 4w. Using uxtu to change the short and long-term power limits you mentioned didn't help either.

The overall charge rate at idle is -6w which is actually pretty good, considering the processor takes up so much.

Can anyone else try running `powercfg /energy` and check if PCI Express Active-State Power Management (ASPM) was disabled due to a known incompatibility with the device? Mine has this error, and I'm trying to figure out how to fix it.

[NikoB]

@Dummy user I have the same question as well. Even when I go to settings under system -> battery and choose best efficiency and battery saver, I can't get the processor consumption down below 4w. Using uxtu to change the short and long-term power limits you mentioned didn't help either.

The overall charge rate at idle is -6w which is actually pretty good, considering the processor takes up so much.

Can anyone else try running `powercfg /energy` and check if PCI Express Active-State Power Management (ASPM) was disabled due to a known incompatibility with the device? Mine has this error, and I'm trying to figure out how to fix it.

You yourself, from your own experience, were convinced of the lies of processor manufacturers about better energy efficiency (despite the fact that the processor in this series is already deliberately stifled) - where does all the "energy efficiency" go if the processor consumes more than 4 W when idle, while even CoffeeLake 2018 with 10nm consumed 1.9W in the "gaming laptop" Dell G5 5587. And despite the fact that I did NOT limit its performance in any way - for 5 years it has been working only and exclusively in the "maximum performance" mode. 100% use time. And it consumes 1.9W at rest, and under load it immediately shoots up to 47W without problems, delivering the maximum stable performance for its series in the CBR15.

New processors are faster due to a sharp increase in consumption in PL1/PL2 and partly from improvements in technical processes over 5 years, but why do they consume so much at rest? With all the features that have been added since then and with the "4nm" technical process, instead of "10nm" in Intel 2018?

Isn't this a shame for the x86 camp? Moreover, people write that Intel at "10nm" is able to, through optimization in ThrottleStop/XTU, make it sleep with a much lower consumption level than the latest AMD processors, even the HX series. How so? AMD and laptop manufacturers are clearly doing a poor job of optimizing resting consumption.

[jesterly]

What an oxymoron: a business laptop with a glossy screen 🙄

[Matte Film]

What an oxymoron: a business laptop with a glossy screen 🙄

Oh these "glossy screen" and "3.5 jack" trolls. Buy a matte film.