i'd post this in the DiabloMiner thread but...i'm a newbie and all.
just started mining with DiabloMiner on a gtx480 and i get hw errors fairly frequently...like once every 5-10 min or so. this happens whether oc'd or not, with about the same frequency. i thought when i first started (for the first 1/2 hour or so) that it wasn't erroring so often, but that could just be my selective memory. so question...is my h/w defective or is this just nvidia's crappy opencl driver?
i've run this card o/c'd since i first got it, never had any probs with it in games/furmark/occt. so i'm a bit reluctant to think that it's a h/w error that occurs identically whether i run it at stock or at +150mhz.
Once every 5-10 minutes is a little high, but I was asking more about users that are getting 5-10 a second. Theres a tiny subset of users getting this, and I want to see how widespread it is.
What you have, however, OCing cards can cause it, especially when it pushes it to the edge that you'd need to overvolt too. As long as your Nvidia GPU is kept below 75c this shouldn't be a huge issue.