Increase hfa fanspeed slightly more when it's rising in the optimal range than falling.
diff --git a/driver-hashfast.c b/driver-hashfast.c
index e0cc317..5e40ca4 100644
--- a/driver-hashfast.c
+++ b/driver-hashfast.c
@@ -1322,7 +1322,7 @@ static void hfa_temp_clock(struct cgpu_info *hashfast, struct hashfast_info *inf
if (temp_change > 0) {
/* Temp rising, tweak fanspeed up */
if (info->fanspeed < opt_hfa_fan_max)
- hfa_set_fanspeed(hashfast, info, 1);
+ hfa_set_fanspeed(hashfast, info, 2);
} else if (temp_change < 0) {
/* Temp falling, tweak fanspeed down */
if (info->fanspeed > opt_hfa_fan_min)