Update: just spoken to someone more helpful at Dell Support, who says that Dells official position is that it cant be done, but that it is possible, but means that due to the heat, the fan will have to work harder, fine! He also said that the same cooling is in place for the single processor systems as the double processor systems.
Onto my next question, I am looking at the processor to buy and have two identically priced, almost identical processors. One is called Active 1U, and the other Passive 2U, what does this mean? I have copied the details below... (sorry that its all big and crazy text) uad-core Xeon Processor E5410 2.33 Ghz 1333mhz Fsb 12mb L2 Cache Lga771 2u Passive Part Number:
1355052 Stock Level:
3 Our Price:
£183.54 (£215.66 Inc VAT) Quad-core Xeon Processor E5410 2.33 Ghz 1333mhz Fsb 12mb L2 Cache Lga771 Active Or 1u Part Number:
1355050 Stock Level:
1 Our Price:
£183.54 (£215.66 Inc VAT)
What does this mean?