Please select To the mobile version | Continue to access the desktop computer version
Cyber Bitcoin
Recently Avalon has released the fourth generation bitcoin miner.Which based 28nm chips.Evaluation of the brand new miner are shown below.

Chip's Official Data:
Code:A3222
Process:28nm
BGAFN56-8×8, 0.5mm
Power Efficiency:0.4–0.6W/G
Voltage: 0.65V–0.8V
Hash Rate:25Ghs @ 400MHz

153014dr1ns6s87z78h1z1.jpg

Specifications:

* Hash Rate:1000 GH/s±10%
* Power Efficiency: 0.8 Watt/GH/s on wall at 0.75V
* Voltage: 480W on the wall
* Chip Quantity per unit: 40
* One 80mm fan
* Temperature:0°C - 40°C
* PSU:12V*51A
* Power Efficiency:90%
* Size:395mm×160mm×165m
* Net weight:8.5kg

1.Exterior:

Avalon4 use rectangular design with black matte painting.

153015bp6a014ia7z77fh7.jpg

153016zloohtsfsoeqlnn7.jpg

Avalon began using single group from the second generation.Users could easily incorporate it into the server chassis. Avalon4 can be seen also follows the same design ideas.

Generation 3:

153017ikok898bu8b22zdl.jpg

153018p7dq9no3om3b08mw.jpg

Front of the Avalon4,there are air intake with data cable/power cord interface and LED status lights.You can see two hashboard plates side by side, each one has 20 Avalon4 chips.

153020rlqzi3zbybqq9qb3.jpg

From the back,there is a 12cm fan.

153022u0vx8jnv6jdydivg.jpg

153025aw0l3t0a0ltvwzzl.jpg

Package includes:Raspberry Pi (2nd generation) / a connecting line data(15cm) / Usb date line(32cm) / USB cable adapter AUC.

153027baxvt447kvvta7fn.jpg

153029eisvh77llrurnl5k.jpg

USB cable adapter AUC

153032nnxopx9ngoongxgg.jpg

Size of the miner:

153033qr2w78orr23ehk81.jpg

2.Installation:

We use a 1000W PSU for test.

153035no0gwoklofk00xo7.jpg

Raspberry Pi connect Avalon4 with the USB cable adapter AUC.

153037xnj9wjnnp4i9nnzp.jpg

153039niaxz1grxvsi5vuv.jpg

153041f5h6r50efh1on3rw.jpg

153043t98n9m5zv17dz811.jpg

Connect the power:there are two of 8pin interfaces on each hashboard.

153045abuld3mho6pl6hdv.jpg

153047r7d2j9l87d8nld77.jpg

Start Raspberry Pi

153049cp85hzsifimg6d7x.jpg

Final Wiring

153052iw8jf25152124j34.jpg

3.Software setting:

After the power is turned on,Avalon4's ip address is automatically assigned,you could enter the web control page with this ip. (Note 4A segment is 192.168.0. *,sometimes you have to modify the network segment first)

153053vk5q20ugu7b5gu5c.jpg

Control pages using graphical design,you could adjust workers/pools/frequency/ip/dns/gateway here.

153054gd0eqvqvy08vxlme.jpg

153055qlisfufqriinbg5b.jpg

153057fc07ikfamcan5auk.jpg

You can also adjust settings via traditional settings pages.

153101xbppb8bddrebzivi.jpg

153104a54vi0p13k1g936t.jpg

After 24h worked in the F2pool.Hashrate is about 0.86T-1.09T.

153107f75bld7odnhrlln7.jpg

Working status:

153109tds00w0huevsxc0s.jpg

153111hih2hn09w13qsils.jpg

4.Power consumption, noise and temperature test:

The temperature of the environment:13-18 degree.
Environmental noise:39dBa.

Normal satus:672W @default frequency with Pi.

153113q9gswu1z2f27u55n.jpg

In order to get accurate data,we use two ultra-quiet 500w PSU.Under normal operating conditions the noise at the inlet is about 46dBa. The outlet noise is about 47dBa.

153115izbb8d9275n8beuo.jpg

153117g6cni6isxmdx3z4s.jpg


When the fan runs at high speed,at the inlet to the noise around 56.6dBa.The outlet noise is about 59dBa.

153119rj20jr3mgmk230s9.jpg

Noise:49dBa(1m)

153121bweref4fcs428rie.jpg

Temperature:

Heatsink near the chip:39 degree.

153125zuqga8jl3a8jghlg.jpg

5.Internal structure

153128pmjrdj1rxmydjwpm.jpg

153131b1xbbw2hkx1f5z4k.jpg

153133dr22fqbb4k2qdgbh.jpg

6.Overclocking

Adjust chip's Voltage to 8250,frequency to 460:400:385.At this point the miner voltage value is 0.825v(after working a while,will be 0.8v)

154548nmqegy3d6myzgyte.jpg

153136utt24jxxtexl4m40.jpg

Power consumption:799W.
Hashrate:1.07T-1.12T.

153137ezfqeqqg62lidzq8.jpg

hashrate:

153139ygrfqfslggetlrfa.jpg

7. Summary

Avalon4 has compact design,space-saving specially.

The controller program is good,Theoretically each Pi could run 4 of Avalon4.Control page has simple design,looks good.

Hashrate/Power consumption is about 0.95T&670W @ default frequency(445:385:370).

Quietest miner in the history of the Avalon.

Excellent heat dissipation.

Overclocking potential.

From:http://www.cybtc.com/article-1508-1.html

Reply

Use magic Report

All comments
    You have to log in before you can reply Login | register

    Points Rules

    Contact
    • 313688250
    • service@cybtc.org
    qqtwitter
    qqtelegram
    qqdiscord
    Copyright© 2019 cybtc.info
    -->
    Quick Reply To Top Return to the list