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Author Topic: best mining settings for 7970  (Read 12753 times)
runlinux
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August 13, 2012, 05:00:38 PM
 #41

one of my elec circuits are at it's limit, so i downclocked further... getting 3.6Mh/watt
 

rig:  gd70 with Seasonic 750's, phenum 4core, 4g ram

clocks:  800/650/887volts. (cgminer displays volts improperly)

rig is pulling 660 watts at the wall

Code:
cgminer version 2.3.6 - Started: [August 11, 2012, 9:02 pm]    Rig:miner19
miner19
(5s):2385.78  (avg): 2381.94 Mh/s  |    H: 87.6  Q:17589   A:31314   R:717   HW:0   E:?%   U:32.14/m
TQ:?   ST:35   SS:?   DW:2399   NB:108   LW:90454   GF:8   RF:31
Connected to http://gpumax.com:8332 with LP as user ?
Value:
GPU 0: 73.0C 2857RPM 47% 120 | 476.9/476.2Mh/s | 99% | 800Mhz 650Mhz 1.17V A:6283 R:151 HW:0 U:6.45/m I: 9
GPU 1: 70.0C 1081RPM 0% 70 | 477.3/476.5Mh/s | 99% | 800Mhz 650Mhz 1.17V A:6285 R:134 HW:0 U:6.45/m I: 9
GPU 2: 71.0C 1056RPM 0% 71 | 477.4/476.5Mh/s | 99% | 800Mhz 650Mhz 1.17V A:6292 R:135 HW:0 U:6.46/m I: 9
GPU 3: 70.0C 1097RPM 0% 70 | 477.0/476.1Mh/s | 99% | 800Mhz 650Mhz 1.17V A:6270 R:150 HW:0 U:6.44/m I: 9
GPU 4: 72.0C 1284RPM 35% 107 | 477.3/476.5Mh/s | 99% | 800Mhz 650Mhz 1.17V A:6184 R:147 HW:0 U:6.35/m I: 9

Gah, I hate you. 750w+ for 2x 6870's and 2x6970 getting 1340mh/s. (yes, its currently profitable)

OK, time to figure this crap out. That rig is my biggest moneymaker, but also the most power-hungry.

I'll chime in more once I get my 7970 + 6950 mining tonight on a different rig.

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August 13, 2012, 05:15:58 PM
 #42

one of my elec circuits are at it's limit, so i downclocked further... getting 3.6Mh/watt
 

rig:  gd70 with Seasonic 750's, phenum 4core, 4g ram

clocks:  800/650/887volts. (cgminer displays volts improperly)

rig is pulling 660 watts at the wall

Code:
cgminer version 2.3.6 - Started: [August 11, 2012, 9:02 pm]    Rig:miner19
miner19
(5s):2385.78  (avg): 2381.94 Mh/s  |    H: 87.6  Q:17589   A:31314   R:717   HW:0   E:?%   U:32.14/m
TQ:?   ST:35   SS:?   DW:2399   NB:108   LW:90454   GF:8   RF:31
Connected to http://gpumax.com:8332 with LP as user ?
Value:
GPU 0: 73.0C 2857RPM 47% 120 | 476.9/476.2Mh/s | 99% | 800Mhz 650Mhz 1.17V A:6283 R:151 HW:0 U:6.45/m I: 9
GPU 1: 70.0C 1081RPM 0% 70 | 477.3/476.5Mh/s | 99% | 800Mhz 650Mhz 1.17V A:6285 R:134 HW:0 U:6.45/m I: 9
GPU 2: 71.0C 1056RPM 0% 71 | 477.4/476.5Mh/s | 99% | 800Mhz 650Mhz 1.17V A:6292 R:135 HW:0 U:6.46/m I: 9
GPU 3: 70.0C 1097RPM 0% 70 | 477.0/476.1Mh/s | 99% | 800Mhz 650Mhz 1.17V A:6270 R:150 HW:0 U:6.44/m I: 9
GPU 4: 72.0C 1284RPM 35% 107 | 477.3/476.5Mh/s | 99% | 800Mhz 650Mhz 1.17V A:6184 R:147 HW:0 U:6.35/m I: 9

Gah, I hate you. 750w+ for 2x 6870's and 2x6970 getting 1340mh/s. (yes, its currently profitable)

OK, time to figure this crap out. That rig is my biggest moneymaker, but also the most power-hungry.

I'll chime in more once I get my 7970 + 6950 mining tonight on a different rig.

dude.  cut them down to 800/700/0.99v  and you will only use about 500watts.  you will only loose about 200Mh

so, for 60% of the elec, you will get 85% of the Mh

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August 14, 2012, 05:26:56 PM
 #43

must be nice, my MSI 7970 doesnt like being undervolted.  I can mine for about 36 hours at 1.08v before it resets to 1.175 and climbs to 95C.   Though noise is a big deal to me, and having it at 46%+ is too loud.  my visiontek has been running 975mhz at 1.03v for a week straight with no issues at a lower fan speed too. 
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