Similar to the display cable, a loosely connected GPU in the PCIe slot can also affect color accuracy and may cause a yellow tint on the screen. To ensure this isn't the issue, open your computer ...

Click Snipping Tool and then End Task. When you restart your computer, the yellow border around your screen should be gone.

After that, follow on-screen directions ... What is the triangle on my laptop battery warning? The yellow triangle warning on your laptop battery typically indicates a low battery level.