The Phantom GS has three 8-pin connectors for 450 watts total and 75 watts from the PCIe slot. So the Phoenix GS is 350 watts, 300 watts via the two 8-pin connectors and 50 watts from the PCIe slot. Įach 8-pin connector is 150 watts and the PICe slot is 75 watts. GeForce RTX™ 3080 Phoenix "GS" has 2x8-pin connectors.
GPU Z PERFCAP REASON PWR WINDOWS 10
Specify a custom active Power Plan and force Windows 10 to use it (thewindowsclub.GeForce RTX™ 3080 Phantom "GS" is the better card with 3x8-pin connectors. SOLUTION: You can either restrict your application from changing power plans and lock your laptop in one power plan ("Dell" power plan works fine with me), as described here: Can be more than some minutes though if the load remains very high. Can not be less than some minutes no matter what. This period is not defined directly by temperatures nor power drain. What I figured is that it stays in that clocked-down state for a given amount of time, before stops throttling. But when it throttles for both reasons ("Pwr,Thrm") then it drops the memory clock to 300MHz and performance suffers greatly. When throttling for either reason the laptop runs OK. This power plan made throttling of the laptop behave irregularly: Despite the temperatures of GPU, CPU, Hotspot (as shown by GPU-Z) were fairly low, "PerfCap" (performance cap) was kicking in as a combination of excess power being drawn (Reason: "Pwr") and excess temperatures existing (Reason: "Thrm").
![gpu-z perfcap reason pwr gpu-z perfcap reason pwr](https://i.imgur.com/dew8imW.jpg)
My problem was that Steam VR, after starting, set the power plan of the laptop to "High Performance" (a setting not available when Steam VR is now running - maybe it creates a power plan and activates it - people are complaining about that in forums). I spent several hours to resolve this, and I am writing this up in hope it may save someone time and frustration. Then after some time it would get back to normal and after some minutes again go down. After some time using my headset (Oculus Quest 2), the performance would become unworkable. I had problems with video performance when trying to use my laptop (Dell XPS 15 9500, GTX 1650 Ti, 16 GB RAM, 1TB SSD) with Steam VR. After paying $2K for a high end machine with superb reviews I never thought I'd have so much problems with basic functionality! Maybe I just got a lemon? Would love to hear any ideas. Has anyone had a similar issue? I'm at my wits end with this.
GPU Z PERFCAP REASON PWR SOFTWARE
I contacted Dell Support, they ran a hardware diagnostic, couldn't find anything and told me I'd need to pay $100 for Software support (despite not being able to confirm it was indeed a software issue). I have the latest drivers, have updated my BIOS, all to no avail. I've had the same problem when testing across different streaming platforms (YouTube, Vimdeo, Netflix, etc.), I've tried on different WiFi networks, and I've tried on different web browsers (I did turn off Chrome hardware acceleration, no impact). It's very noticeable and extremely frustrating. When streaming video, the playback is choppy, and every 10-30 seconds the video will catch and stutter. I've noticed the laptop is fairly buggy in several circumstances, the most frustrating of which is video stutter when streaming video online.
![gpu-z perfcap reason pwr gpu-z perfcap reason pwr](https://umtalelab.com/wp-content/uploads/2020/09/nvidia-geforce-rtx-3080-memory-oc-test-1024x591.png)
Over the summer I picked up a new Dell XPS 15 with Intel Core i7-10875H CPU w/ GPU.