You are required to do what bitmain said to do.
Attach a copy of your purchase - as a pdf and reply to that email.

On the other side of the coin.....

I have 2.242TH minerside and 2.23TH poolside @225Mhz clock on stock PSU using 1600W+ pointed at slush.

I think Bitmain is a fine stand up company. I look forward to my replacement PSU.

As of 10/10/2014 - this is the firmware listed on the bitmain support site:

initramfs.bin.SD-20141003.tar.gz

Do I unpack it or just point the S4 at the tar.gz and it uploads and decompresses it
and deals with the whole thing?

Thx.

My S4 is operating at the stock setting of 0725 which corresponds to .725 Vdc.

What are the valid increments if I want to up the core voltage on the chips?
What would be the highest voltage - the technical upper limit?
Are there valid steps, or do you just up it in .1v increments?

Thanks.

So far - a small 1" square block of wood and a couple bungee cords
wrapped around the S4 to hold the wood block up against the button
is about my best thought. Short of a complete disassembly of the stock
PSU so that I can bridge the switch contacts with a relay or something.

Batch 1 S4 PSU Question
================

I have removed the PSU from my S4 - there is no label or other markings on it.
And I checked all 4 sides. (Yes, I know it's a 1400Watt PSU).

The On-OFF button must be pushed after every power outage.
I asked Bitmain if the PSU could be programmed to return to previous state after a power outage.
I need it to turn on automatically. I need to NOT drive 10 miles after a power outage.

Bitmain's reply - They can do nothing on their side. This functionality is best
incorporated into the PSU directly, and they can't do anything about it.
DUH. A PSU should have an On-OFF switch.
Not a logical On-Off button.

So.....

1. Big UPS capable of 1 hour @ 1400Watts. (Out of the question.)

2. Replace stock PSU. I already have that option available by using 2 server PSU units
   that I already have. I have 2ea. 1200W PSU - they would work fine.

3. Jam something against the on-off switch to hold it in the ON position.

4. Another solution that I haven't thought of yet?

What would you guys do?