I think the voltages will be the important part going forward to save energy costs... hoping to get some comments from the
D&T 5970 expert: how low do you think I can push down the V with mh above 700?
I have a few of these 4x5970 rigs, so I thought I would take the one in the warmest spot to lower the V and hashrate to see what Mh/J I could get.
I have 2 of them on killawatt meters.
this one is at 725/300 0.99V ~2.56 Mh/watt (1032watts) will report back stability.
edit: damn 3rd card always runs hot. ebay purchase. arrrgggg
cgminer version 2.2.1 - Started: [February 22, 2012, 10:12 pm] Rig: miner2
(5s):2640.67 (avg): 2664.36 Mh/s | Q:1344 A:1174 R:30 HW:0 E:?% U:34.11/m
TQ:? ST:0 SS:? DW:56 NB:8 LW:88 GF:0 RF:0
Connected to http://gpumax.com:8332 with LP as user ?
Value:
GPU 0: 67.0C 4000RPM 66% | 330.2/334.1Mh/s | 99% | 725Mhz 300Mhz 0.99V A:131 R:3 HW:0 U:3.81/m I: 7
GPU 1: 68.5C 4000RPM 66% | 330.1/333.4Mh/s | 99% | 725Mhz 300Mhz 0.99V A:130 R:6 HW:0 U:3.78/m I: 7
GPU 2: 70.5C 3862RPM 67% | 330.1/332.9Mh/s | 99% | 725Mhz 300Mhz 0.99V A:150 R:5 HW:0 U:4.36/m I: 7
GPU 3: 66.5C 3862RPM 67% | 330.1/333.3Mh/s | 99% | 725Mhz 300Mhz 0.99V A:145 R:2 HW:0 U:4.21/m I: 7
GPU 4: 67.0C 4139RPM 78% | 330.1/332.9Mh/s | 99% | 725Mhz 300Mhz 0.99V A:127 R:6 HW:0 U:3.69/m I: 7
GPU 5: 69.5C 4139RPM 78% | 330.1/333.0Mh/s | 99% | 725Mhz 300Mhz 0.99V A:153 R:1 HW:0 U:4.45/m I: 7
GPU 6: 69.0C 3413RPM 55% | 330.0/332.4Mh/s | 99% | 725Mhz 300Mhz 0.99V A:152 R:3 HW:0 U:4.42/m I: 7
GPU 7: 68.0C 3413RPM 55% | 330.1/332.5Mh/s | 99% | 725Mhz 300Mhz 0.99V A:186 R:4 HW:0 U:5.40/m I: 7
to compare, miner 16 has been up about 2 weeks. pulling 1150watts (2.45 Mh/w)
cgminer version 2.2.3 - Started: [February 8, 2012, 11:06 pm] Rig: miner16
(5s):2825.49 (avg): 2858.32 Mh/s | Q:865035 A:784566 R:6299 HW:0 E:?% U:38.97/m
TQ:? ST:3175 SS:? DW:18276 NB:2059 LW:0 GF:536 RF:3214
Connected to http://gpumax.com:8332 with LP as user ?
Value:
GPU 0: 63.0C 3027RPM 49% | 356.2/360.8Mh/s | 99% | 775Mhz 300Mhz 1.05V A:98936 R:850 HW:0 U:4.91/m I: 7
GPU 1: 65.0C 3027RPM 49% | 352.6/357.8Mh/s | 99% | 775Mhz 300Mhz 1.05V A:98082 R:758 HW:0 U:4.87/m I: 7
GPU 2: 72.5C 2676RPM 43% | 352.8/357.8Mh/s | 99% | 775Mhz 300Mhz 1.05V A:98810 R:783 HW:0 U:4.91/m I: 7
GPU 3: 72.5C 2676RPM 43% | 352.7/357.9Mh/s | 99% | 775Mhz 300Mhz 1.05V A:98518 R:783 HW:0 U:4.89/m I: 7
GPU 4: 61.5C 3681RPM 68% | 352.4/351.0Mh/s | 98% | 775Mhz 300Mhz 1.05V A:96721 R:785 HW:0 U:4.80/m I: 7
GPU 5: 64.0C 3681RPM 68% | 354.0/357.9Mh/s | 99% | 775Mhz 300Mhz 1.05V A:97713 R:816 HW:0 U:4.85/m I: 7
GPU 6: 71.5C 2680RPM 43% | 352.7/357.6Mh/s | 99% | 775Mhz 300Mhz 1.05V A:98144 R:736 HW:0 U:4.87/m I: 7
GPU 7: 72.0C 2682RPM 43% | 352.1/357.5Mh/s | 99% | 775Mhz 300Mhz 1.05V A:97642 R:788 HW:0 U:4.85/m I: 7