I am trying to repair my brother's PC that will no longer boot to OS. It boots to black screen with underscore cursor. At no time am I able to press any key to enter BIOS. However, once on black screen I am able to CTRL+ALT+DEL to reboot. The motherboard displays the AE, legacy boot, error. The board is seemingly POSTing, its runs through all sorts of tests and codes on initial boot.
I have removed all devices and peripherals and continue to get the same thing. I have disconnected the hard drive and get the same error. I have tested the GPU and RAM in another desktop and they work just fine.
I was able to boot to a USB drive and attempted to install Windows on a new NVMe drive. I was able to go through the initial phase of the installation. It even displayed the original hard drive when given a choice of where to install. After unpacking the OS and installing the first part, the system reboots and we return to the same problem in question. It doesn't boot into the newly installed OS, it boots back up to the USB as if nothing had ever been installed. Remove the drive and we are back to a blank screen.
I have cleared the CMOS with the button on the back panel of the board. I have removed and reseated the CMOS battery. I have tried booting with a new version of BIOS on a USB stick which was renamed R5E.CAP as mentioned on the ASUS site. Nothing changes the outcome whatsoever.
There is a BIOS button on the board that I can bump to select BIOS 2. When I do this I almost immediately get a 53 error code, bad memory module. However, I tested both sticks of RAM and they are good.
I've even gone as far as to remove the heat sink and the CPU and reseating both.
I'm at a loss on what else I can do to troubleshoot. I feel like the boot order is jacked up but I have no way of fixing it. Any ideas? Is the BIOS bricked and the board just not salvageable?
Specs:
ASUS Rampage V Extreme Motherboard
Intel i7-6850K
2x16GB Corsair 2133MHz RAM
EVGA Geforce GTX 1080
I have removed all devices and peripherals and continue to get the same thing. I have disconnected the hard drive and get the same error. I have tested the GPU and RAM in another desktop and they work just fine.
I was able to boot to a USB drive and attempted to install Windows on a new NVMe drive. I was able to go through the initial phase of the installation. It even displayed the original hard drive when given a choice of where to install. After unpacking the OS and installing the first part, the system reboots and we return to the same problem in question. It doesn't boot into the newly installed OS, it boots back up to the USB as if nothing had ever been installed. Remove the drive and we are back to a blank screen.
I have cleared the CMOS with the button on the back panel of the board. I have removed and reseated the CMOS battery. I have tried booting with a new version of BIOS on a USB stick which was renamed R5E.CAP as mentioned on the ASUS site. Nothing changes the outcome whatsoever.
There is a BIOS button on the board that I can bump to select BIOS 2. When I do this I almost immediately get a 53 error code, bad memory module. However, I tested both sticks of RAM and they are good.
I've even gone as far as to remove the heat sink and the CPU and reseating both.
I'm at a loss on what else I can do to troubleshoot. I feel like the boot order is jacked up but I have no way of fixing it. Any ideas? Is the BIOS bricked and the board just not salvageable?
Specs:
ASUS Rampage V Extreme Motherboard
Intel i7-6850K
2x16GB Corsair 2133MHz RAM
EVGA Geforce GTX 1080