|
February 12, 2014, 01:29:47 AM |
|
If you only run the card with low hashrate, does it hash at normal rate? If not, there's probably something going wrong with the card (it could just be heat -- is temp similar to the others while running?).
If it does hash normally, it's probably not power (outside reason you gave) since that'll tend to present as a lot of hard reboots and components shutting off intermittently. RAM's a pretty reasonable guess.... 1GB runs 2 270s absolutely fine. 2GB may be just a smidge too low for 3 280s.... should it be the RAM, given this is probably close to the edge, you could probably solve by disabling all non-essential system services and programs running in the background.
|