Topic: [Ed: A thread in which ztex is blamed for a faulty board] - page 2. (Read 4867 times)

Thanks for your offer, but I already RMA the boards.
I believe that ZTEX must do that replacing task, or refund me.

What fault are you talking about ? Power supply is ok, and it's actually working with the original 3COM switch.

I know this wont make you feel any better, but those volt regs can be replaced.  In fact, if its the 8A Ezbuck one used on this board I have several hundred of them and would be happy to mail you 2.

  Cheers

Why should this be covered under warranty? The warranty shouldn't have to cover a potentially faulty third party PSU.

Cisco, pricey but rock solid. Never saw a router blow itself as this ZTEX FPGA board crap.

Hope Cisco will join the minertool industry.

Last October 21st I ordered 2 x ZTEX USB-FPGA Module 1.15x from manufacturer, through [Angry bastard mod redaction: Don't list non-public meatspace names] (owner of ZTEX).

Total price including overseas shipping was USD 929.-, I told [redacted] I was going to pay with bitcoins, as he told me he would be accepting them. Price with bitcoins was 10% more than with USD, I was not very happy with that , but I accepted the surplus to make transaction faster.

Ten days later, both cards arrived to my office, everything was correctly packed and seems alright. I asked [redacted] if there was anything special with choosing a power supply, he told me that not, that any consumer grade, supermarket, 5-12v voltage power supply was ok.

So I pulled a 12 VDC power supply from a working 3COM switch, checked the polarity, and connected one of the boards. Nothing came out, no led was on, and after connected to USB port, was not detected by operating system.

Suspecting a DOA on first board, I connected the second board, same result. After exchanging a couple of emails with [redacted], who blamed me before knowing anything about what really happened, I took both boards and sent them back to ZTEX for RMA.
Before that, out of curiosity, I measured the idle output of the PS with a digital multimeter : 13.5 VDC

Yesterday, that is only 40 days from initial buy order, Stefan received the cards, and he told that the voltage regulators were blown, and it was my fault for connecting the wrong power supply. And he was not planning to give me a solution nor a refund.

Blamed power supply is actually working with original 3COM switch.

I believe this is a plain SCAM, so , beware from buying anything from ZTEX.

tl, dr : Beware from buying anything from ZTEX, they will not honour any warranty.