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Can a bad DP cable cause artifacting?

Hpst
By Hpst
in Troubleshooting
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Can a bad DP cable cause artifacting like this? It only appears after the PC was turned off for a while. It is only visible in bios and during windows boot, it disappears before Windows gets to the login screen. Only the bottom 2/3 of the screen is artifacting. Happens both when plugged in to mobo and the GPU. Other than that, the PC functions completely normally.

f.webp

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iirc BIOS interface uses some ancient forgotten video display, I won't really bother if it doesn't artefact anywhere else

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1 minute ago, PDifolco said:

iirc BIOS interface uses some ancient forgotten video display, I won't really bother if it doesn't artefact anywhere else

Weird. It worked fine until about a week ago. I haven't updated the BIOS in months. I'll buy a new DP cable tomorrow, maybe that will fix it.

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