Raider 16 Max HX B2WI Poor USB-C Charging Performance

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zacharyj.bramme159202e6

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When I plug my laptop in to charge over USB-C it runs very slowly (slower than on battery). It runs fine with the AC-DC adapter or when on battery. My USB-C charger has a screen and shows that the laptop only ever draws 85-90W. It's rater for 140W and the cable is rated for 240W. It does up to 100W on an old laptop just fine. When I looked at hwinfo it looks like the CPU is hitting a power limit, screenshots below. None of the power limit throttles are there when running on battery or the AC-DC adapter. How do I solve this?
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According to the official page: "The overall system performance may be affected in order to adapt the charging current. The charging rate will vary depending on the system and battery status. MSI PD Charger is recommended."
Which brand and model of PD charger are you using? You might want to check the battery level and see if the PD charger is simultaneously charging the laptop battery, as this can also affect power output.
I reviewed the HWiNFO screenshot. The PL2 limit is set to 65W; this is likely a design limitation imposed by MSI on CPU power consumption when using PD charging.
 
This sounds like the laptop is applying a USB-C power limit. Even with a 140W charger and 240W cable, the laptop may require PD 3.1 EPR or a manufacturer-specific charger handshake for higher power.

Check the BIOS/EC and USB-C PD settings, and try the manufacturer’s 140W charger if possible. If it still caps at 85–90W while HWiNFO shows power-limit throttling, it may be a firmware limitation that needs a BIOS/EC update.
zacharyj.bramme159202e6 said:
When I plug my laptop in to charge over USB-C it runs very slowly (slower than on battery). It runs fine with the AC-DC adapter or when on battery. My USB-C charger has a screen and shows that the laptop only ever draws 85-90W. It's rater for 140W and the cable is rated for 240W. It does up to 100W on an old laptop just fine. When I looked at hwinfo it looks like the CPU is hitting a power limit, screenshots below. None of the power limit throttles are there when running on battery or the AC-DC adapter. How do I solve this for wheel of names?
View attachment 212644View attachment 212645
Click to expand...

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Edric said:
According to the official page: "The overall system performance may be affected in order to adapt the charging current. The charging rate will vary depending on the system and battery status. MSI PD Charger is recommended."
Which brand and model of PD charger are you using? You might want to check the battery level and see if the PD charger is simultaneously charging the laptop battery, as this can also affect power output.
I reviewed the HWiNFO screenshot. The PL2 limit is set to 65W; this is likely a design limitation imposed by MSI on CPU power consumption when using PD charging.
Click to expand...
It’s an Anker B2697 and it has a screen which is how I know the laptop is only pulling ~90W. If it was drawing 140W and it was running slow because 100W were going to the battery that’d make since, but that’s not the case.
 
talhasebt11 said:
This sounds like the laptop is applying a USB-C power limit. Even with a 140W charger and 240W cable, the laptop may require PD 3.1 EPR or a manufacturer-specific charger handshake for higher power.

Check the BIOS/EC and USB-C PD settings, and try the manufacturer’s 140W charger if possible. If it still caps at 85–90W while HWiNFO shows power-limit throttling, it may be a firmware limitation that needs a BIOS/EC update.


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Click to expand...
It charges at up to 120W when the laptop is powered off so I am wondering if it’s a bios/ec/firmware thing.
Support’s statement was that PD is only meant to work properly when the laptop is powered off, but that contradicts what the product page says so idk what to make of that.
 
zacharyj.bramme159202e6 said:
It’s an Anker B2697 and it has a screen which is how I know the laptop is only pulling ~90W. If it was drawing 140W and it was running slow because 100W were going to the battery that’d make since, but that’s not the case.
Click to expand...
Theoretically, at 90W, the system shouldn't run sluggishly; does the slowdown occur when you are running high-load applications?
You might want to try using a PD charger borrowed from a friend or family member to see if the issue is related to the PD handshake protocol.
 
Edric said:
Theoretically, at 90W, the system shouldn't run sluggishly; does the slowdown occur when you are running high-load applications?
You might want to try using a PD charger borrowed from a friend or family member to see if the issue is related to the PD handshake protocol.
Click to expand...
Slowdown happens no matter the load, even if it's just a browser. I'll see if I can find one to borrow from someone.
 
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