1) Dual GPU cards don't get adjusted/disabled correctly. For example, a 5970 will only disable the one GPU that has the temp sensor:
GPU 3: [80.5 C] [DISABLED /78.5 Mh/s] [Q:2 A:11 R:1 HW:0 E:550% U:1.81/m]
GPU 4: [327.3/324.5 Mh/s] [Q:25 A:23 R:1 HW:0 E:92% U:3.78/m]
Out of curiosity, what does AMDOverdriveCtrl -h return as a list of adapters on machines with dual core GPUs like this one?
The output should be something like:
INF: Nr. of Adapters: 16
INF: Adapter index: 0, active, ID:29775168, AMD Radeon HD 6900 Series
INF: Adapter index: 1, inact., ID:29775168, AMD Radeon HD 6900 Series
INF: Adapter index: 2, inact., ID:29775168, AMD Radeon HD 6900 Series
INF: Adapter index: 3, inact., ID:29775168, AMD Radeon HD 6900 Series
INF: Adapter index: 4, active, ID:31979904, AMD Radeon HD 6900 Series
INF: Adapter index: 5, inact., ID:31979904, AMD Radeon HD 6900 Series
INF: Adapter index: 6, inact., ID:31979904, AMD Radeon HD 6900 Series
INF: Adapter index: 7, inact., ID:31979904, AMD Radeon HD 6900 Series
INF: Adapter index: 8, active, ID:34184080, AMD Radeon HD 6900 Series
INF: Adapter index: 9, inact., ID:34184080, AMD Radeon HD 6900 Series
INF: Adapter index: 10, inact., ID:34184080, AMD Radeon HD 6900 Series
INF: Adapter index: 11, inact., ID:34184080, AMD Radeon HD 6900 Series
INF: Adapter index: 12, active, ID:36388256, AMD Radeon HD 6900 Series
INF: Adapter index: 13, inact., ID:36388256, AMD Radeon HD 6900 Series
INF: Adapter index: 14, inact., ID:36388256, AMD Radeon HD 6900 Series
INF: Adapter index: 15, inact., ID:36388256, AMD Radeon HD 6900 Series