Precision 7530 & Precision 7730 owner's thread

That´s great because there were some bios versions which disable undervoltage.

 

Just another question:
Is it possible to underclock/volt the 7730/P3200 ?

 

I guess you can flash the 7530 P3200 VBIOS, which has a power limit of ~65-70 W, versus 80 W on the 7730.

 

If you just want to underclock, you can just use NVIDIA Inspector and force the card to stay in the P5 or P8 power state and then it won't go to the full clock speed. This can be done without mucking with the vBIOS.

 

I tried this already but I was only able to switch to P8 which is too slow then. How can I activate P5 ?

 

I used to use these commands to mess with the power state but I only did "full" and "idle" states... though I had figured that in-between values would get you in-between states.

Full performance:
nvidiaInspector.exe -forcepstate:0,0

Idle:
nvidiaInspector.exe -forcepstate:0,16

[Edit]
Recalled that you need to do a tweak to get NVIDIA Inspector working properly on Windows 10.
https://forums.guru3d.com/threads/f...ctor-on-windows-10.401386/page-2#post-5233269

 

In the last few weeks my 7730 has been running infuriatingly slow. Sometimes task manager frequently shows system interrupts using up 30-40% of CPU. (From what I've Googled, this is likely a driver issue?) Even when Task Manager shows 20-30% total CPU usage, OpenHardwareMonitor shows each CPU core at 80%+. I believe all the Dell drivers are up to date, as is the BIOS.

Any suggestions on how to troubleshoot this short of reinstalling Windows?

 

Has anyone started to have battery wear issues with their 7730 with a 97Wh battery?

I usually use it as a desktop replacement, plugged in for much the day, with a few mobile jaunts. I run linux almost 90% of the time, which doesn't have the greatest laptop power management, so mobile time was pretty limited. But I never discharged the battery completely that I remember. The battery life is getting bad enough that in full power saving mode (disabling practically everything, dimming screen, disabling the dGPU via the OS) I am only able to eek out about 2hrs of battery life.

The laptop is a 2019 model. I bought it (used) in 2020 and battery wear was at 92% when I got it. After a year of admittedly heavy use, it's currently at 57%.

It was at 68% when I really started noticing the decreased battery life. I thought maybe it was loosing it's calibration so I completely discharged it by letting it sit at the BIOS screen until complete dead and recharged it. Full capacity (as show by both the `acpi` tool in linux and the `powercfg` tool in windows) was reduced to 62%. So I tried it again, and now it's at 57% full capacity. So I'm just gonna stop doing that. Lol.

I figured there would be some battery wear after 2 years of use, but almost 50% seems excessive.

 

Have a 7530 with a 97 Whr battery. Leaving it plugged in at 100% is an anathema to battery wear; I'm on my third battery over three years, and this is the one that has lasted the longest.

Use Dell Power Manager or the options in the firmware to set battery charge limits. A good rule of thumb: start charging below 50% and stop charging above 80%, so your laptop remains plugged in, but the battery charge is at 80% maximum.

 

Is this still true for lithium batteries? I though they'd charge up to 100% and then just stop charging unless the power supply is insufficient (I'm looking at you, Apple)