Occasionally the computer fails to start.
Occasionally the computer fails to start.
Hello there, Once in a while my computer wont boot. It will power on as suspected, and it will cycle through the different hardware, and get stuck on white (VGA). I have searched the internet, and haven't found an answer to my specific problem. Once i pull out all the cables (Including the power cable), let it rest for a short while, and replug everything, and boot with only keyboard and one screen connected - the computer boots just fine (with a warning screen for BIOS ofc - where it wants me to check my bios settings) Specs (Home build): Asus ROG STRIX Z370-G GAMING Sapphire Pulse Radeon RX 580 Intel Core i7 8700K 2 x 16 GB DDR4 2666 MHz Corsair It started doing this after i installed the new motherboard and GPU (though with looong periods of time without doing so - could be up to 3 months and sometimes just days). I am uncertain if this is something i should be concerned about, and how to fix this issue - wether it's a GPU problem og a MOBO problem?
PSU is Corsair RMx Series RM850x, just purchased recently. I got it because my PC was making a lot of noise, so I upgraded the power supply and later the case (hoping this would solve the problem). Resetting the CMOS might help occasionally—though it only occurs sporadically, sometimes after months or even just once in a while.
It depends on how the system identifies the hardware. If it cycles through devices and hits "white (VGA)", the white LED with the VGA label should light up, indicating the correct connection. Otherwise, the screen may display white if the settings are properly recognized.
In this scenario, there appears to be a problem with your GPU. Restart the BIOS to the factory settings (if any PCIe configuration or other settings caused the issue) then remove the GPU. Verify the connections and inspect the contacts using a Q-tip or soft tissue soaked in alcohol. Clean the PCIe slot thoroughly with a vacuum or brush it gently. Reinsert the GPU carefully, ensuring it clicks securely into place—align it properly without tilting it. Once positioned, hold it straight without pushing upward; it should sit evenly against the motherboard. If the issue persists, test the GPU on another system to check for similar problems. Before doing this, you might try connecting it to a different PCI X16 slot on your current setup to rule out a faulty main GPU.
The situation is rare, which is why I don't believe it's related to the GPU. It occurred just two days ago, and before that was about two to three months ago. This leads me to suspect a motherboard issue—definitely not a BIOS configuration problem since it happens infrequently. I haven't noticed any display artifacts, and during intense 3D work in Blender the GPU performs normally. If power were the cause, the system would shut down automatically under heavy load.
Indicators serve a purpose, and fixing issues should begin with a clear approach. If you skip these steps, consider replacing the power supply first, then the motherboard. This method is more efficient and direct compared to other troubleshooting techniques.