I work in a Data Center with a raised floor. There is a 10 ton unit that blows air from the ceiling and a 5 ton unit that only blows the air under the floor. For a backup unitl, we had an 5 ton unit that blows air from the ceiling, but that unit broke and facilities refuses to repair it since the plan is to replace it with a 10 or 15 ton unit (which may take months before we get through the red tape to have it finally installed). Over the years the heat load in this Data Center has grown tremendously. When the 10 ton until failed a few months ago and we had the 5 ton backup working the temperature in this room shot up to 90 degrees. So, if the 10 ton unit fails now (without a working backup) then the temperature will surely go over 100 degrees. My question is, at what temperature can the iSeries and P Series operate at without damage the hardware? Of course, we would open the floor tiles, open the doors, install large fans and portable A/C units, but our iSeries and P Series severs share the room with a massive server farm (over 100 servers). My biggest concern is this happening over a weekend were I won't be able to set to the room to save the Data Center in time. A lot of these are blade servers generate heat like a furnace. My server guy thinks the servers will survive even if the temperature hits 140. I think it's safe to say he is dead wrong. So, at what temperature can we expect hardware problems to occur?