Re: AMD GPU hard lockups

[Celejar <celejar@gmail.com>]

On Thu, 3 Aug 2023 02:08:27 +0200
zithro <slack@rabbit.lu> wrote:

> On 03 Aug 2023 01:25, Celejar wrote:
> > I'm not sure I understand your point: if we assume that the fact that
> > my adapter burned indicates that my particular adapter must have been of
> > very poor quality, than this implies that such adapters in general are
> > not dangerous (which, as I've noted, is supported by the fact that
> > reputable companies sell them, with no warnings that they're dangerous).
> 
> You will never find in a car owner's manual that driving on pedestrians 
> may be dangerous ;)

But you certainly will find warnings regarding safe vs. unsafe use of
the product.

> Joke aside those companies just wanna sell products.
> Do the products fit you ? Read my previous email: YOU must check.
> 
> To remove the confusion : your graphic card is rated at 150W, but it's 
> the MAX power it can use, not the power it uses all the time.
> So, until you don't stress the GPU, those adapters will be perfectly fine.
> Example from a Win domU, GPU-Z reports ~40W in idle (browsing, videos, 
> ...) for a Polaris20 GPU (AMD RX580), with a TDP of 185W.
> That's why you only had problems when REALLY using the GPU.
> 
> For instance, let's say you built a server, but only have a RX6600 as 
> video card, a 6 pins connector and a 6-to-8 adapter.
> THIS will be perfectly fine : your GPU will never exceed limits, as it 
> will at most display a framebuffer.
> 
> (To go even further : AFAIK, most graphic cards won't boot without the 
> external PCI-E power connector plugged, but if there wasn't such 
> "protection", as the x16 PCIe slot provides 75W, in my example above it 
> would be perfectly fine to use the card w/o the external plug).

Thanks for the explanation.

-- 
Celejar