Phillyo118

Good evening everyone, First post here and I'm really struggling! The issue is this; when I turn on my pc either from off or restart it doesn't post to BIOS. The screens stay blank (power comes on to the system though). I have to hold the power down to turn it off, then turn it back on and it gets to the initial BIOS screen saying there was an error and I should go into the setup. I do that and I can select the correct boot drive from the list and then it boots up fine. I have tried a new PSU and that hasn't helped. Tried reseating the RAM, the GPU (haven't tried CPU yet as that's a huge faff and I don't know why it would suddenly cause this issue when it works fine on the second try?) I am using Windows 10 64 bit, Asus Z170-a motherboard with the most up to date BIOS. i7-6700K, Nvidia 1070 with 32GB of corsair vengance RAM. One thing I've noticed (not sure if it was there before) is the main boot drive which is an EVO 970 Pro m.2 drive, doesn't show up when the BIOS posts on the second time telling me there's an error, but all my other drives do? However it's there to select as a boot drive inside the set up. Any help here would be greatly appreciated as it's really annoying! Thank you. Phil.