What exactly is your question then? If the cable supplied with the PSU doesnt plug into what you have there are thousands of adapters out there.

No. These are so old and outdated you need free power to make a profit.

You would still pay out the ass for shipping + repair. Its the same thing as repairing any other out of warranty board, they arent gonna give you a discount just because you identified the issue for them.

I have removed and replaced chips on an S9 board. You can remove them using long tweezers and a heat gun. The trick is to heat up the larger top heatsinks and use the twwzers to roll the heatsink back and forth, dont just yank on it. Then remove the bottom heatsink in the same manner. If you do this backwards and heat up the smaller heatsink first, when you go to remove the larger heatsink you will yank the chip right off the board. You can heat up the chip a bit and use a razor to scrape off the black goop. Then simply heat up the chip ( around 400-450 f on the heat gun ), pinch it from the sides with the tweezers and slightly wiggle until it pops off, keeping heat applied the whole time. Be very careful with the heat and tweezers as there are many small components you can heat up and knock out of place without even realizing it.

a 6 card mining rig can be had for around $1400-1600 new, this is a crazy price.

If you dont want to mess around with building them yourself id say take a look at the PandaMiner. You pay a small premium for not having to do any of the manual labor yourself. They are an all in one altcoin rig that from what I have seen is a bit more stable than the standard home built altcoin rig. There are some threads on the forum that show this miner and its capabilities in great detail.

I feel like if you want to invest 1-1.3 million dollars you would be doing more research on your own rather than asking a random internet forum about it.


1. 10ph = 1 million dollars in S9s (~900)

2. $70/month hosting average per unit ($63k/mo hosting)

3. Any hosting facility with the ability to host these will want a minimum of 3 months hosting in advance (~190k)

4. Good luck finding reliable hosting company that can handle 1.3+ megawatts of systems

5. S9s have high failure rates and require a fair amount of maintenance.

6. In an absolutely perfect world your ROI would be around 200 days. Chances are with S9s it will be more like 270 days of hashing. Lets say another 30-45 days for shipping/setup/etc before they even get turned on.


These are extremely rough estimates on everything but it should give you an idea of what to expect if you tried to pull something like this off.

The temp sensors are actually built into the chip itself. Problem is they only pull data from chip 63 so if that one has a problem you are out of luck. It will be fixed under warranty but there is basically nothing that you can do as an end user to fix it.

So you can put one miner on a UPS. You have also increased its ROI time by 3 months. Thats like 1700 hours of hashing to pay for the UPS that will in its lifetime prevent maybe 6 hours of downtime?

I am so not understanding where you people think this is a good idea? Its like you are looking for ways not to ROI

With the Avalon the miner itself does not have an IP, the IP is on the RPi controller. If you think it is not booting just hook up an HDMI monitor to the RPi and you can see exactly what is going on.

Alternatively you can just download the software image from Canaan and flash the SD card yourself.

I have managed over 6-8000 Avalon6's in my time and never had an issue that required a UPS. Maybe the 7 series act different? I have had plenty of SD cards corrupt themselves in that time but that is just normal behavior with old RPi's and a hacked together OS. The fix for that is to just have a spare on hand if you dont want to take 3 minutes to reflash the SD card when that happens. Ill take the $4 fix over the hundreds of dollars a UPS would cost.

You have a bad video card. RMA it.

UPS are a giant waste of money. I dont even understand the thought process.

I have to know....what exactly do you think is a 'normal' shutdown that requires a UPS?

The proper way to shut down a miner is simply to remove power. A power outage does this for you. Thats it, theres nothing else to do. They run read only firmware so its not like you can damage anything by just randomly losing power. Also...the PSUs are internally regulated, you shouldnt have to worry about power fluctuation at all.

To get real power figures you should use an amp clamp and do the math. In my experience none of those meters are ever accurate.


Also the 741 is listed at 1150w +15% so the actual power draw of the unit is ~1320 watts with a very efficient PSU. So you really arent over what they claim by very much.

It is astounding the lack of understanding people have over this whole asicboost thing. Its not this magic power reducing unicorn. Functionally it does NOTHING because the pools dont have it activated.

The machine wont shut down until the chip temps read over 100c, you are fine where you are even with one board running 'hot'

The amount of power S9s draw is too much for a standard home UPS. You would have to buy something large and expensive.

You should try to put this in the altcoin forums, this is not the proper place for it.


P.S. run linux for mining = no more BSOD

This is an honest question. Why would you throw money away buying a bleeding edge graphics card when you can buy 3-4 other cards for the same price with a combined hash rate that will shit all over that card for overall value and hashrate?


edit: You can buy 5 RX470s for the same price as the one Ti.

The 4xx series is out of production, time to look into the 5xx

I have hundreds of altcoin rigs running 2-3 PSUs.....there is no reason not to especially since you can power the graphics cards off of higher end server power supplies at a fraction of the cost of an expensive ATX supply.

You can buy a cheap no name brand ATX psu to power the board and run a high quality PSU on the graphics cards.