Limit value of density ITE load in Zone

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I'm modeling the data center by EnergyPlus. When I use 200W/m2 Load of ElectricEquipment:ITE:AirCooled for 167m2 Zone. The simulation ran but when I increase the value to 1700W/m2, I had some severe errors about temperature out of bound like below. When I decreased my area about 8.5 times (about 167 / (1700/2000) = 19.65m2), the simulation is ran like before. My severe errors:

** Severe  ** Temperature (high) out of bounds (210.55] for zone="WEST ZONE", for surface="ZN001:ROOF001W"
**   ~~~   **  During Warmup, Environment=WHOLEYEARDAY, at Simulation time=01/01 02:45 - 02:46
**   ~~~   ** Zone="WEST ZONE", Diagnostic Details:
**   ~~~   ** ...Internal Heat Gain [1001.699] W/m2
**   ~~~   ** ...Infiltration/Ventilation [0.000] m3/s
**   ~~~   ** ...Mixing/Cross Mixing [0.000] m3/s
**   ~~~   ** ...Zone is part of HVAC controlled system.

I wònder that 1 Zone has the limit value about IT Load in it (about 33400W = 200Wm2 * 167m2) or my HVAC system (consist of OutdoorAirSystem, Fan:VariableVolume, CoilSystem:Cooling:DX and AirTerminal:SingleDuct:VAV:NoReheat and I used the default parameters in the file 2ZoneDataCenterHVAC_wEconomizer.idf of EnergyPlus example file) can't maintain the temperature of the zone (with high IT Load). I used a high-density load because the data center uses more server racks (IT Load) emphasized text* than the normal building.

Can anyone give me advice for my problems above?

Thank all your support.