Windows boots blank screen with cursor input

[TicsMcgee]

Hey guys,

So yesterday I decided to install a third hard drive in my system, I originally had windows installed on a 120 gigabyte SSD and I had a one terabyte western Digital green for storage. 

I then found another old western Digital 1 terabyte caviar green hard drive at home and decided to add it to my PC, as who doesn't like extra storage..

After installation I rebooted windows to find that I had a blank screen with cursor input, alt control delete wouldn't work there was no taskbar no desktop image just blank dual monitors with a mouse pointer.

So I did a hard reset. Same thing.

Ran chkdsk /f and /X, SFC /scannow all the standard stuff; no errors found.

So I disconnected the SSD thinking there must be a problem with that even though command didn't find any.

I then subsequently reinstalled windows on one of the 7200 RPM western Digital drives to see if that booted. That worked fine, windows started so I decided to plug in the SSD to see if I could get the data off it as my motherboard supports hot swapping, so I plugged the 120gb SSD back in which caused the whole computer to lock up.

So restarted again, disconnected the SSD and resided myself to the fact that it had finally died.

So moving forward to today I go and buy a new SSD to reinstall windows onto, I'd left the two western Digital discs connected (both of which all seem to be working fine on the windows install that I did last night on one of them), installed windows to the new SSD which went fine and then boots up same problem as yesterday blank screen with cursor input. So I disconnected the two wd hdds, and windows boots fine with just the one SSD connected. I then connected one of the HDDs back up, still boots fine, connected the third and low and behold, same behaviour.

I then switched the HDD drives to check if the third drive boots when the second HDD is connected and it did. But connecting that third drive (the one I had connected second in the previous test) in order to see if it still booted was caused the blank screen again.

It seems to be the connection of the third drive (no matter which) that stops windows booting and gives this wierd environment where it hasn't fully crashed but has the same functionality of a brick.

So do you guys think that this sounds like a memory controller issue or an issue with the PSU simply not being able to provide enough power to the third device.

Any help would be a big help 

Cheers

Julian

P.s. my rig is as follows:

P8Z77-M PRO

I7 3770k @ 4.5 and 1.29v

ML240R aio

16gb Corsair vengeance LP DDR3 

Auros Rtx 2060

99% the PSU is a CoolerMaster 700w