Quote from: mbtc21 on Today at 01:07:33 PM

Quote from: kurutoga on Today at 12:17:48 PM

Quote from: mbtc21 on Today at 11:42:40 AM

why is cgminer decreasing core speed? I setup 450 MHz last evening and today it's only 360 MHz

cgminer will automatically reduce the frequency if the asic miner plateaus in order to protect it. This usually happens due to overheating or low voltage.

One of my miners gets adjusted on a regular basis and I've spent a lot of time trying to get it to stay at 400. All the others stay at 400 just fine. I've had them all at 400 before, but it just comes down to how much you want to troubleshoot.

How does it detect overheating

It doesn't. They just get tuned to the best the chips will do.

Sometimes adjusting voltages or adding cooling will improve things. But sometimes the chip can only do the best it can do.