I tried my other machine with 6x 6970 at intensity 8 with all other parameters using the defaults.
With poclbm, I normally get 399 mhash/s for each card for a total of 2394 mhash/s.
I ran it for 15 minutes:
cgminer version 1.2.7 - Started: [2011-07-17 14:51:54]
--------------------------------------------------------------------------------
[(5s):1927.3 (avg):1989.7 Mh/s] [Q:423 A:296 R:2 HW:0 E:70% U:20.83/m]
TQ: 8 ST: 7 LS: 0 SS: 0 DW: 10 NB: 1 LW: 10 LO: 4 RF: 1 I: 8
Connected to http://arsbitcoin.com:8344 as user ChocoboLee.21
Block 000119a00d89314ecd1621e344011ee7 started: [2011-07-17 15:01:23]
--------------------------------------------------------------------------------
GPU 0: [340.5 Mh/s] [Q:71 A:53 R:0 HW:0 E:75% U:3.73/m]
GPU 1: [331.3 Mh/s] [Q:70 A:49 R:0 HW:0 E:70% U:3.45/m]
GPU 2: [348.8 Mh/s] [Q:72 A:47 R:0 HW:0 E:66% U:3.35/m]
GPU 3: [369.7 Mh/s] [Q:76 A:70 R:1 HW:0 E:92% U:4.93/m]
GPU 4: [319.0 Mh/s] [Q:67 A:40 R:1 HW:0 E:60% U:2.87/m]
GPU 5: [287.0 Mh/s] [Q:62 A:44 R:0 HW:0 E:71% U:3.58/m]
--------------------------------------------------------------------------------
Here's what my pool says:
ChocoboLee.21 Y 1482
Have other people had success with running cgminer with 6 gpus? Is it possible that it's not able to handle all 6 efficiently? This is happening on both my machines. Should I try other things like setting number of threads per GPU?