At one point it did light up, although it was dimmer when compared to the others. The only thing I did was move it to another computer. I was trying to figure out why it was getting low performance.
After 8 hours of runtime
After 8 hours of runtime
It seems one of your units is throttling. There are two ways to know whats happening
1) Verify the Heatsink is firmly attached.
2) Try a lower bitstream like 800 or 768, etc. If the hash-rate increased, it means the unit was throttling.
It is odd that the unit throttles if your room temperature is 22C up to 25C and the units are not taking
exhaust air from another hot component (PC or PSU, etc). They are specifically tested for this situation
prior to shipping.
You can also verify the Silicon Paste under the heatsinks (if you have the utility to do so).
Please let us know how it goes. You can post or send PM.
Regards,
BF Labs Inc.