I just got an HP Z600 and installed an RX 470 card (with drivers). I have the latest BIOS (Mar 2018). Windows 10 is installed. When at BIOS screen (sitting on it for a while) or DOS (e.g. running memtest86 memory check) everything works fine, but when Windows is running the screen freezes. It can freeze anywhere from right at the start of loading to a few minutes later (when using Windows). Does anyone know what may be causing this?
Memory tested ok. Since it doesn't freeze at BIOS or memory testing, hardware is probably ok.
OS Windows 10
Graphics Card AMD Radeon Rx 470
HDD 2 x 500GB
AMD Drivers for RX470 loaded
(All other AMD software removed)