Unless you run into any of the other typical problems seen by x52 users, this might solve your problems and save you some of the pains I experienced. If you experience these problems 1) completely uninstall Saitek software 2) go into BIOS and disable xHCI 3) reboot windows and install the latest Saitek drivers.
Your x52 LED indicators not lighting up properly This means that if you have a modern system with USB2 and/or USB3 your motherboard probably supports xHCI and therefore will might cause all sorts of problems when installing an x52. One of the problems with the x52 drivers (or perhaps the hardware itself, I don't know) is that it doesn't play nicely with xHCI and this information is not well documented. I had more trouble installing my x52 Pro than I have had installing any kind of hardware since about 1995.