Know ,How long the asic have been working?

[shehabelbasmy]

Hello, guys
i had start mining Eth with graphic cards 3 year ago,
and form a while i'm trying to buy asic miner .
is there any ways to check or test asic condition whether it's worked before ?
or if it used,can i know how long it had been working ,i don't wanna take the asic from the buyer and it at stake !!
thanks you ^_^

[philipma1957]

So how to tell a used btc miner has been miss used and damaged by previous owner.

Well does it work to spec when you get it.
What return policy does the seller have?

Buying used gear is risky if you pay with btc or any crypto maybe they will give a 1 or 2 day return policy.

So hope it works well use a seller that has a good rep.

I am not selling any gear at the moment i have a good rep but if I sell a used s9 I only give the buyer 2 days to check it out . Most sellers of used gear do not give a warranty.

If they sell here on bitcointalk.org you can read their trust.

This shows my business deals

https://bitcointalk.org/index.php?action=trust;u=64507

it is very good one of the best on this site.

As I said I am not selling to you or anyone at the moment I am simply showing you ways to check on people .

[Ken_terrance]

When it comes to asic miners you don't want to buy used ones, a friend buy two pieces from aliexpress and they are fault, he had to send them back, if the seller is living close to you then you can take your eye there and check things out yourself before paying, I'd rather prefer to buy new asic miner