Quote from: captinkid on January 30, 2017, 05:31:53 AM

That's the question, is it more cost effective to keep sending parts in for repair, or to spend that money buying better equipment with real support from elsewhere?

Can do a GPU rig that's 1/2 the raw income of Bitmain hardware, but it'll easy to fix and replace parts as needed, with a full 1 year warranty.

Maybe an Avalon rig too, not quite as good on paper as Bitmain, but if they have a lower failure rate it won't take much to make it worth it.

Bitmain has an initial productivity advantage, but it eats that away with failures and constant issues. Plus their warranty is essentially worthless, so there isn't much to recommend them.

One thing you might try is send the bad fan in with the other unit, and ask for a PAY repair on that part, or have them ship you a replacement fan. Anything other than shipping back an entire extra unit for a bad fan would be a big benefit.

this is the long barrel fan not a delta . and it is working but sounds like shit

I know of no one selling the 20 inch tube fan

https://shop.bitmain.com/market.htm?name=antminer_r4_silent_bitcoin_miner_for_home
A Groundbreaking Custom-design Fan
The R4 will change the meaning of a fan for all bitcoin miners

Fans have long been the single biggest source of noise in any bitcoin miner. The R4s design team found a simple but unique solution to this problem: to do away with the traditional noisy fan!
Inspired by the fan of a silent split air conditioner, we designed a fan that can make less than half the noise of the standard miner fan. Whats more is that its speed is automatically controlled to ensure it never creates more noise than is absolutely necessary.

http://image.bitmain.com/R4/overview/img-overview-fan2.png