Quote from: cashen on March 30, 2017, 02:18:04 PM

Quote from: Ambros on March 30, 2017, 09:23:16 AM

Quote from: cashen on March 30, 2017, 02:39:32 AM

7 x MSI RX 470 Gaming X 4GB
Al Hynix Memory

Using custom 1625 strap. All mods done in the bios and used on all cards except 1, which I had to "degrade" slightly.
1160 watts at the wall.

This is a nice first try, but you can decrease the wattage dramatically. You can have similar hash rates with 800W

PM Sent

I got it down to 991 watts at the wall. My PSU says it is using 900 watts. I have a smaller platinum PSU which is only running at 90% eff.

What else can I / Should I do?

http://imgur.com/a/1Gj8O

You definitely still have room to improve.

I'm doing 178Mh @ 950w. I can probably shave some more watts lowering my core voltage, but sometimes I do 10% overclock on core when mining XMR, and I want to have enough voltage for that. So I normally run 900mv, and 950mv on memory.

This is 6x MSI RX 470 4G. The hynix (29.4) are lightly loosened 1500 straps, and samsung (29.9) are lightly loosened 1625 straps.

root@rig16:/home/dallas# clocks
1: 2046Mhz *
7: 1146Mhz *
1: 2093Mhz *
7: 1143Mhz *
1: 2094Mhz *
7: 1144Mhz *
1: 2041Mhz *
7: 1141Mhz *
1: 2095Mhz *
7: 1145Mhz *
1: 2092Mhz *
7: 1142Mhz *

root@rig16:/home/dallas# rates
Screen #0
ETH - Total Speed: 29.392 Mh/s, Total Shares: 132, Rejected: 0, Time: 02:29
ETH - Total Speed: 29.398 Mh/s, Total Shares: 132, Rejected: 0, Time: 02:29
Screen #1
ETH - Total Speed: 29.871 Mh/s, Total Shares: 121, Rejected: 0, Time: 02:29
ETH - Total Speed: 29.867 Mh/s, Total Shares: 121, Rejected: 0, Time: 02:29
Screen #2
ETH - Total Speed: 29.891 Mh/s, Total Shares: 133, Rejected: 0, Time: 02:29
ETH - Total Speed: 29.878 Mh/s, Total Shares: 133, Rejected: 0, Time: 02:29
Screen #3
ETH - Total Speed: 29.392 Mh/s, Total Shares: 138, Rejected: 0, Time: 02:29
ETH - Total Speed: 29.388 Mh/s, Total Shares: 138, Rejected: 0, Time: 02:29
Screen #4
ETH - Total Speed: 29.884 Mh/s, Total Shares: 136, Rejected: 0, Time: 02:29
ETH - Total Speed: 29.860 Mh/s, Total Shares: 136, Rejected: 0, Time: 02:29
Screen #5
ETH - Total Speed: 29.877 Mh/s, Total Shares: 108, Rejected: 0, Time: 02:28
ETH - Total Speed: 29.864 Mh/s, Total Shares: 108, Rejected: 0, Time: 02:29