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You can find a nicely formatted version at dogiecoin.com!
Contents:
0a) What to Expect
0b) What You Need
1) Powering
2) Cooling
3) Case
4) Configuration
5) Troubleshooting
0a) What to Expect (top)
The Hammer ASIC is created by SpondooliesTech (ST) and made by TMSC in Israel. The SP10 has 192 Hammer ASICs set up on two big hashing boards. The hash rates can range between 1.4 and 1.5TH depending on the temperature and power consumption.
Thanks dogie for the awesome work!
We going to release together with the 1st units shipment the Plug&Mine cloud mechanism to public, allowing to easily locate the units LAN address, making the whole set-up process even faster.
You can see how it will work in the product movie (starting 2:40):
http://vimeo.com/89415321
Great review, thanks Dogie.
Quick question (not sure if it has been mentioned elsewhere): When you say it's loud, how loud are we talking? I've got 2 AntMiner S1s, and at 1 meter it measures at ~61-62dB (using Android's 'Sound Meter' application, which seems fairly reliable). Room temp is about 20C or so right now.
In quiet mode WITHOUT PSU fan control its 69-70 at 1m. All the noise though is the PSU, its rediculously overcooling itself as its designed to run @ 100% load up to 50C, and its in 22C. Just that temperature difference means its overcooling by 83% so once the coding is done then noise levels will come right down to ~Antminer levels (or less).
The normal and high levels with today's firmware but PSU control would be roughly that of an Avalon gen1. As of this second they're LOUD2. All in good time, the team is busily coding away new things.
If its a 1.25 U server, then there should be 0.5U between two on one side, and 0U on the other. Ie 0.5U above and 0U below. This does degrade cooling performance as the bottom side is essentially a huge heatsink, and a LOT of heat is removable from there with extra airflow. That surface also gets exceedingly hot when in quiet mode so I wouldn't risk putting a material in there.
In quiet, the only noise is the PSU fan (40mm) and the subsequent vibration it generates. In normal, the fans are loud but you can't sound dampen them.
Your waterblock would have to be around 17mm thick at max, and may be cost prohibitive due to the unusually large area of the chips (2x 475 x 440mm). I'm not sure you'd want to risk cooling the PSU internally, or if its even possible. If we pretend that the PSU can't be software controlled (which it can over I2C pins), your best chance at modding it would be an extension cable from the control board out the back of the case, to a custom PCB with 24 pin ATX, 8 pin ATX, 6xPCIE 8 pins etc so it can be powered by a 'silent' ATX psu. Would defeat the purpose of 1.25U though.
Thx Dogie for very informative review.
How much you can OC this device ?
Its generate different amount HW's errors depend of speed settings ?
Can you post some screenshot with that data ?
Sure. We're experimenting with a bigger model under various conditions to see what the gain will be, if any.
In addition, those PSU lead time is above 10 weeks, don't expect an upgrade option anytime soon.
Great news. Don't be shy and post some results when you will have them. Having an upgrade or just buy separately option would be great. If not i think people can outsource themselves the needed model if the results are good and having a spare PSU can't be wrong at all.
Edit: Thank you for the review dogie.
We will. It's a bit low priority task for us now, we're concentrating on getting the firmware to be release worthy for next week batch.
Assume that the results will be over 1.7 TH/s in a 20C ambient temperature. However, we can't back up this number for now.
Again, if we'll offer this option, it will be an after market addition.
No digital display, bottom gets hot yes (that side directly touches the lower heatsink). It wouldn't make any appreciable difference to convection (we're talking low double digits if that), while it would slightly reduce the cooling performance of the heatsinks internally. Either way though its such a small change.
Higher clock modes tend to taper out at 1.5 with current firmware, which looks more like its capped by the power supply rather than chips or temps (as giving it more voltage between turbo and normal did pretty much nothing). In quiet mode (~1.35) I'm seeing 0.7%. On the higher clock modes it was slightly higher but not appreciable.
Remember the software isn't ready so the %s mean nothing - you'll have to calculate it manually.
Good job, Dogie...for a such short period of time...Waiting for more details...
Quick question (if you will)...Are you getting PAID for this review...?