Did you flip the psu logo? Usually when the fan is facing up, the logo is upside-down.This is my Home Server I recently built.
OS: Windows Home Server
Motherboard: MSI P55-CD53 LGA1156 Core i5
CPU: Core i5 750
RAM: G.Skill F3-10666CL7D-4GBRH 1333MHz DDR3 4GB Dual-Channel
PSU: Corsair TX750W
HDDs: 4x WD1001FALS 1TB drives (for now)
Case: Antec 900 (Going to get hotswap bays for the harddrives so I can have more drives per 5.25" bay).
GPU: Temporary crap one, going to be removed soon since there's no point in wasting power on it being in there with the connector client being used to access it, might see about making it fold in a week or so.