Have post in the passed !
Having a few issue with my X7, I've upgraded the mobo (and other parts) but I'm having problems with the X7 being unresponsive AND/OR the software not seeing the amp thus being no sound. The only way I can get it to work again is either unplug via the power, sometime I have to restart the PC & this has not worked !
Other problems I have are simple ones like plug in my headphones & it powers off or resets its self meaning I have to go through the same as above ! Some would say, don't turn off the PC & that brings in the dreaded X7 into sleep mode..... Damn thing wont wake !
I installed the new FW and its worse !!! I'm plagued with all issues every startup. Rolled back to see if I can sort it but I'm kidding myself as it did it before
I'm wondering if the X7 doesn't like USB3 or something as it didn't like it in the old MOBO ports, this now MOBO only has USB3 so I can't even move it to another port.
I've always bought Creative & defended their software/hardware but the money I've spend on the X7 & E-MU I've felt mugged off !
I do having same issues like you had but mostly if i use device with burson v5i it won't wake up from sleep
with stock opmaps happens very rare but i think i found the problem my previous power adapter was measured volt 24,9 (labeled 24v :lol)
i bought another one with measured volt 24,2 device survived first waking up from sleep
i did use device most time with usb3 connected
but for testing i put device to usb2 things got worse even
here i did steps before putting new power
disconnected e-mu cables from x7
switching to 8ohm mode and putting standard power source
re-flash firmware with firmware.exe -force
than switch 4ohm and high power mode
i didn't test with bursons with new power source yet