Topic: Radeon HD 7660D Onboard dramatic drop in MH/s (Read 2696 times)
So I discovered the solution. For some reason when a monitor is not plugged in to the card it gets significantly less hash power. Weird.
That's true; but the one that signifies the CPU portion only hashes around 1 MH/s so I don't use it. The onboard card alone used to get me 80 MH/s, and then one day just dropped to 20 MH/s with no evidence as to why.
Edit to add: I feel almost like something else is mining on my onboard and taking my hash power. Is this possible?
Edit to add: I feel almost like something else is mining on my onboard and taking my hash power. Is this possible?
This post seems to suggest the AMD APUs get recognized as two separate bits of hardware, so they require two separate workers in GUIMiner:
https://bitcointalksearch.org/topic/m.1816794
https://bitcointalksearch.org/topic/m.1816794
Anyone? No thoughts? I know 80 MH/s isn't much, but my whole configuration is putting out 1 GH/s so I'm not worried too much about the revenue. I worry more that something happened to the mobo itself. Dropping from 80 to 20 seems to point to something gone wrong. I just don't know what else to check.
So for some reason my onboard Radeon HD 7660D just dropped from over 80 MH/s down to 20. I can't figure out why and I can't get it to go back up. I just reinstalled the drivers, nothing. Temp would sit at 65-70 C with spikes to 75 Csometimes, now 30-35 C even when mining. I'm using GUIMiner v2012-12-03; mobo is Gigabyte GA-F2A55M-HD2 with AMD A10-5800K APU, 650W PSU, 16GB RAM on Win7 64.
What can I check? What would cause me to lose 75% of my hashing power?
What can I check? What would cause me to lose 75% of my hashing power?
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