if the card has manufacturer warranty and the seller provides working proof then there`s no need for testing warranty. Just make sure that the warranty seal is intact and all documentation is present.
Even in this situation, I think there is a case for seller warranty.
Often working proof is not completely transparent - a seller might try to hide a broken HDMI port by using a DVI port for a proof video, similarly a GPU fan might be broken/underperforming.
Having a seller pulling off a last minute switch-a-roo is my greatest fear - The seller shows a working GPU as proof, but at the time of trade gives a busted GPU instead.
Sad to hear about your 2060. I guess even sellers aren't as protected as I thought.
EDIT: Your GPU story sounds so similar to the taped-up Chromebook scam someone reported on TE yesterday - but the buyer was duped in that case.
I can't imagine the buyer intentionally burning a 2060 - must've been a noob or something.
For warranty product I give only damage warranty in transit and buyer have to show the pic as he gets product in possession not after 2~3 days of delivery, If its not physical damage then he should move to official channel for RMA
I feel there is a grey area here.
As a buyer, I'd be worried that the seller is shifting the RMA burden onto me.
A buyer expects a working component at time of purchase, not "probably might work" after a round of RMA.
Instead ask about his terms for transit damage, loss and doa. As long as the card is working fine and the warranty is not void you don't need seller warranty hoping it reaches your hand safe.
It was supposed to be a face to face deal in Bangalore in a mall - so no risk of shipping damage.
Once I had it in my hand, I would have preferred a few days of seller warranty to test the GPU thoroughly and make sure the ports, fans, temps and clock speeds are all as advertised.
If there is something wrong discovered at time of sale, then it should be on the seller to fix it (through RMA) or refund it - that's my only argument for seller warranty.
Once I sold a HD which got damaged in transit even with more than enough protection so I offered refund or repair from my side. After few days found out that HD can't be repaired so offered full refund but buyer suggested we split the damages 50-50 (as he knew the risks before dealing also saw how well the package was packed), He wanted to return HD and i declined as its worthless to waste money on courir for a dead product. I know not everyone will deal like this but this is how the deal should be done.
Good on you for dealing with the situation properly.
But, I would've requested for the HDD back. Too many scammers and con-artists out there these days. I would've liked to make sure the HDD was actually broken beyond repair.