Dual Core Intel Xeon 5000 series processors with 4MB Level 2 cache (2MB per core) up to two processors supported Up to 32 GB PC2-5300 Fully Buffered DIMMs (DDR2-667) with 4:1 and 2:1 interleaving available, online spare and mirrored memory capabilities (8) small form factor (SFF) hot-plug drive bays to support Serial-attached SCSI (SAS) and Serial ATA (SATA) drives Protected by HP Services. Three-year Next Business Day, on-site limited global warranty. Certain restrictions and exclusions apply. Pre-Failure Notification on processors, memory, and hard drives. SATA hard drives have a one-year warranty.