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Intel Arc GPU, Display Port pin 20 issue

asdf1423
Beginner
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Hello

 

I heard that many DP cables in the market are not properly made:

They should have made pin 20 as dummy by VESA standard, but they haven't, leading to power backdrive from monitor to GPU when computer is off.

(http://monitorinsider.com/displayport/dp_pin20_controversy.html)

 

People say this can damage GPU permanently. Some says GPU manufacturers have anticipated this so recent GPU won't get damaged from DP cables with pin 20 intact.

Is this the case for Intel Arc GPU? Can DP cable with pin 20 alive still damage Arc GPU?

 

Thank you

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ShunMnzed
New Contributor I
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The issue you've described regarding DisplayPort cables and pin 20 backdrive is indeed a known problem in some cases but it's important that GPU manufacturers, including Intel for Intel Arc GPUs, typically design their products with protective measures to mitigate potential damage from such scenarios.

I think there is no such details or information specifically to every DP cable on the market, it's generally advisable to use cables that comply with VESA standards and have pin 20 properly configured as a dummy pin to avoid any potential issues. and also it's recommended to use high-quality cables from reputable manufacturers to minimize the risk of damage to your GPU or other components.

 

Tyler

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