[NAME]  To answer your questions: 1) I want to run in the lower resolution because there are some weird legacy programs that I have to use that windows doesn't seem to be able to scale accordingly (and thus are super tiny), although, for the sake of debugging this, I have switched over to 4K. 2) I have a power adapter directly connected to the 7530 itself in addition to the dock for this very reason. That being said, I kind of have things working: all three displays running at 4K[NAME] using the NVIDIA GPU. There is one rub, however: I can only seem to use two of the three display outputs on the dock at any given time. Either both DPs can be hooked up, or one of the DPs and the HDMI port. The third output always gets shut off whenever I have all three of them plugged in. However, running the two DPs off the dock and then the third monitor connected to the laptop's mini DP port directly seems to get the resolution/refresh rate that I want on all three monitors, and it's running fine. Does that make sense that I wouldn't be able to drive all three off the dock? Is that related to the power issue you were referring to, possibly? I'm satisfied with how it's working now, but ideally I'd like to drive them all off the dock, if possible. How I got this "working": manually installed the latest NVIDIA Quadro drivers (for whatever reason, NVIDIA Control Panel wasn't installed on this machine), then, went into the BIOS and enabled the "discrete graphics" output mode (which essentially allowed for the NVIDIA GPU to take over). I think the latter, like you suggested doing in your reply, is what really did the trick.    Thank you for your help thus far!
I have a Precision 7530 hooked up via the thunderbolt port to a WD19TB. The laptop recognizes the docking station as expected in the Thunderbolt Software. I'm trying to drive three Dell U2718Q monitors at QHD (2560 x 1440) resolution. Ideally, I want the output to be running at 60hz for each monitor, however, it is driving them all at 30Hz. According to the documentation (if I'm reading it correctly), this configuration should be possible with this laptop and dock while using the thunderbolt port. While trouble shooting, I noticed that even if I use a single monitor (hooked up to the DisplayPort on the dock) configured to 1080p, it still drives it at 30Hz. Things I've tried so far: Another thing to note, this laptop has an NVIDIA Quadro P2000 display adapter in it as well, and I am able to connect these monitors to the mini DP port that is for that display adapter on the back of the laptop and have it display in full 4K at 60Hz no problem (so I know it's not an issue with the monitors themselves). My questions are:  Thanks in advance!
Precision 7530 and WD19TB only driving external monitors in 29Hz