Recently was following a blog by lukminer, after he did the record for biggest hashing power under 1 machine (4u build with multiple Phi cards). Was pleased to find a more recent update about a pre-built solution that uses socket baesde PHIs as opposed to the Cards. ASrockrack is ASrock's taiwanese based small business solution department that doesn't seem to have a website for all the gear, and relies of manual invoicing and talking with clients.
Anyway. I was intrigued by the small form factor, and how much hashing power these units put out. Especially since my current 24U server rack is filled to the brim with OLD hardware and only does 12 KH/s. And a lot of power is being turned into heat due to the Gold rated PSUs, and lots of them. Switching to just 1 4U unit, with platinum power would make for a much more efficient overall hashing system without generating as much heat (factoring this in based on Gold PSUs stepping down 240v to 12v, still a bit hot running at 50% capacity).
Here are the details.
I've tested a few systems so far that I found to be around the same investment cost @ 4H/$ and only about 4H/watt in efficiency.
Anyway. I was intrigued by the small form factor, and how much hashing power these units put out. Especially since my current 24U server rack is filled to the brim with OLD hardware and only does 12 KH/s. And a lot of power is being turned into heat due to the Gold rated PSUs, and lots of them. Switching to just 1 4U unit, with platinum power would make for a much more efficient overall hashing system without generating as much heat (factoring this in based on Gold PSUs stepping down 240v to 12v, still a bit hot running at 50% capacity).
Here are the details.
- $3000, won't ship until April/May
- 4U, 4 node sub modules, with 1 socket for a X200 processor
- Comes with chasis, 2 platinum 1600w, 4x Xeon Phi KNL 7210, No ram, No Risers
- You don't need ram as the chip has DIMMs on the SoC from what I understand, just need to load linux up on a usb, and the SoC should be able to run the OS on the chip.
- 2800 H/s per Phi 7210
- ~12-11 KH/s @ 1200-1100 watts
- Comes out to... about ~ 4H/$ and 10H/watt (Essentially VEGA 64 cost and efficiency, before the price hike).
I've tested a few systems so far that I found to be around the same investment cost @ 4H/$ and only about 4H/watt in efficiency.
- OC nodes with E5-2660 V1 (investement cost was about 2.7H/$1, and power consumption is about 5.3H/watt)
- RX 550 with bios edits (2.7H/$1, and about 8H/watt)
- E5-2450L (4H/$1, and about 3H/watt)
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