Intel? Xeon Processor MP at 3.00GHz (4MB Integrated Level 3 cache with Hyper-Threading Technology), up to 4 supported 1GB PC1600 registered ECC SDRAM (Standard) to 32 GB (Maximum)(2x1 interleaved memory and Advanced Memory Protection Technology) Hot-plug drives, power supplies, fans and PCI-X slots provide all the fault tolerance you need for maximum uptime 7U Tower Form Factor Ships standard with the ProLiant Essentials Foundation Pack, (including SmartStart and Insight Manager) and supports other ProLiant Essentials tools like the Rapid Deployment Pack