From the speficiations for sun fire v440:
Quote:
Temperature 5°C to 40° C (41°F to 104°F) noncondensing—IEC 60068-2-1&2
And yes, the warm room is elevating the operating temperature. If the room itself experiences more temperature increases, you will have issues with overheating in the future.
I would work on the environment. Move the v440 into a rack or mount with forced circulating air. Try clearances all around for ventilation - or forced air. Maybe your fan trick will work long term - I do not know. But if your fan dies the v440 may die soon after.
We have 4 servers in a room that never exceeds 20C, and we force cool air into the rack mounts. It just isn't worth the problems caused to application data to experience a completely preventable heat outage. My opinion.