FPS drop when plugged in and charging

[UserinDistress]

Please let me know how it goes! Thx 🙂

[Simão]

Could you link me a 90W adapter pls? I have the same situation with the 940mx and i77500u

[madfry]

Right. Something odd in my case. 

I sourced a third party, 90W charger, stuck it in, and... It didn't work. The blasted FPS drop is still present and accounted for, even with the third party charger.

So, using GPU-Z, spent a few hours collating graphs of the FPS drop using Furmark, since it has a nice graphs at the bottom that shows the FPS drop nicely.

A few things to note :-

1. Under battery, the graphs shows slight fluctuations also when the GPU is being used, but I'd say the small percentage (around 5% at most) meant that you'd miss it anyway.

2. Power draw looking at the VDDC figures doesn't differ much from the standard 65W vs the 90W. Normally running around 0.9 to 1.1 at the max, when the dreaded FPS drop happens, goes down to 0.6 with the corresponding core clock drop that caused such problem.

3. I slid the power mode to Best Battery life, and lo and behold, I get a stable graph under Furmark. However, it didn't translate to a better experience in real gaming. 

4. That is when, I decided to get help and source the pulled F04 bios thanks to the assistance of a forumer here (don't know if I should quote you). There is a slight difference, which is his is the i7-8550u while mine is the i5-8250u. 

5. That solved the problem. The FPS drop practically disappeared, even when using the original 65W charger. 

Hmm... 

[Pagerfat]

My case is also solved with the F.04 BIOS and the 90w adapter together.

What I'm really surprised is none of HP staff replied the thread after repeating this issue will be escalated. It's really a shame.

I took a screen shot of what actually happened when the frames drop by the GPU-Z log
It's recorded with the F.03 BIOS and 65W adapter when playing NBA 2K18:

The GPU core clock and VDDC both suddenly dropped (1683 to 139  and 1.0930 to 0.6750 respectively).
Perfcap reason also shows PWR limits at the same time. I guess F.04 BIOS increases the TDP limit to make the frequency more stable since I also found the GPU can reach 70C rather than 60C like before. But I'm not sure this really solves the issue, some users also reported the issue lingers after the BIOS update.

Anyway, HP should let us know the latest progress of the solution. I don't see why we should suffer the irresonsibility of them.

[perfectofc]

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@Simão wrote:
Could you link me a 90W adapter pls? I have the same situation with the 940mx and i77500u

---

Not sure where in the world you are, but the following 90w adapters have been mentioned on this page.  The first one is the one I have.

Also not sure about your model as the CK specifically supports 90w adapters in the manual.  Best check before you go out and order one!

- G6H45AA (slim)

- H6Y83AA (slim)

- H6Y90AA

[madfry]

This is more or less my experience, although as I said, it was weird that using just the 90w charger didn't eliminate the problem right away. 

I did also read about the F04 bios not working well for some, perhaps maybe due to the fact that two different processors are involved here, the i7=8550U and the i5-8250U. 

Both are 4 core, 8 Threads, everything similar except the higher clocks, although with the same TDP. 

[madfry]

Update : There is a new F05 official BIOS out for my laptop model, perhaps you guys would also see it in your spesific notebook support model. 

Bios is dated as January 28, 2018. 

Fix and enhancements:

- Provides a rollback of the CPU microcode to the previous version to improve system stability.

I've loaded, updated and tried the BIOS. Ran a few games, and didn't see the stutter make a return, so for those waiting for officially sourced BIOS to update their notebook should give this a go. 

I did run PTEST, reported a small increase, but I'm not sure how reliable that is, since I just realized I turned off Coolsense while doing that. 

[Green_user]

 Hi, the BIOS update works. Do give it a try for everyone who needs to fix it. I updated my BIOS via HP Support Assistant. 

[Hanslau]

Hi, anyone still have the files for the pulled f.06 bios? Before they released the version with Updated Security (Meaning WORSE performance)

[Hanslau]

Hi, anyone still have the files for the pulled f.06 bios? Before they released the version with Updated Security (Meaning WORSE performance)