Hey everyone. I tried to upgrade the BIOS of an ASUS B150 Pro Gaming AURA on a secondary machine using ASUS's EZ Flash BIOS utility. I set it to download the BIOS from the internet (rather than pull it off a USB stick) and update it.
I left it for about an hour, came back, and noticed the screen was dead and that the PC was on, but VERY quiet. Left it another half hour, saw nothing had changed, so made the (probably stupid) decision to turn it off and see if it had simply got stuck.
Since then, the machine's been in pretty much the same state. It won't POST, so I can't access the BIOS settings. The lights on the motherboard come on (both the system and LEDS), and the CPU, fans, etc are powered / appear to be functioning, but there's no display or sound output, and USB devices don't seem to be powered or active. The error LEDs (for CPU, RAM) on the board don't light up, except very briefly when it turns on. Looking at the manual, this seems normal.
I've tried some basic stuff using the motherboard's on-board graphics outputs (HDMI and VGA) instead of the ones on the GPU, taking out the battery to reset the CMOS and shorting the relevant pins on the motherboard to reset settings, but neither option has given me any signs of life. Plugging in a USB stick with a good BIOS on, as ASUS recommends for recovery, doesn't seem to do anything, presumably as there's no power going to the USB as the lights on the stick showing that it's in use don't turn on.
I assume the best thing to do would be to flash the BIOS chip using a separate device and plug it back in, but I've never really encountered any issues like this before. Does anyone have any experience with something like this, and if so, what do you think's going on? Have I completely killed the board, or am I right in thinking that getting a good BIOS would fix it?
If it's relevant or helpful, the motherboard's about four years old, with an i5 6500K (yes, unlocked on a board that doesn't support OC...), a 1070, 16 gigs of RAM and a decent (gold rated) 550W PSU. There were no issues prior to the BIOS update.
