| Server |  x3250 M2 Learn more |
 x3350 Learn more |
 x3250 M3 Learn more |
 x3550 M2 Learn more |
 x3650 M2 Learn more |
 x3755 Learn more |
 x3850 M2 Learn more |
x3950 M2 Learn more |
| Positioning | Entry infrastructure server Edge of the network |
Entry infrastructure server Edge of the network |
Performance infrastructure server | Entry business application server Workgroup |
Performance business application server WEB infrastructure |
Outstanding high performance computing server | Enterprise server | Scalable enterprise server |
| Form factor | 1U Rack | 1U Rack | 1U Rack | 1U Rack | 2U Rack | 4U Rack | 4U Rack | 4U - 16U Rack |
| Processor type (maximum cores) | Intel Xeon (quad-core) |
Intel Xeon (quad-core) |
Intel Xeon (quad-core) |
Intel Xeon (quad-core) |
Intel Xeon (quad-core) |
AMD Opteron (quad-core) | Intel Xeon (six-core) |
Intel Xeon (six-core) |
| Processor sockets / maximum cores | 1 / 4 | 1 / 4 | 1 / 4 | 2 / 8 | 2 / 8 | 4 / 16 | 4 / 16 | 4 - 16 / 24 - 96 |
| HDD type | SAS & SATA (SS & HS) |
SAS & SATA (SS & HS) |
SAS & SATA (SS & HS) |
SAS, SATA, SSD (HS) |
SAS, SATA, SSD (HS) |
SAS (HS) |
SAS (HS) |
SAS (HS) |
| Maximum # HDDs | (2) 3.5" (4) 2.5" |
(2) 3.5" (4) 2.5" |
(2) 3.5" (4) 2.5" |
(6) 2.5" | (12) 2.5" | (4) 3.5" | (4) 2.5" | (4 to 16) 2.5" |
| Maximum memory | 4 DIMMs 8 GB |
4 DIMMs 8 GB |
4 DIMMs 32 GB |
16 DIMMs 128 GB |
16 DIMMs 128 GB |
32 DIMMs 128 GB |
32 DIMMs 256 GB |
32 - 128 DIMMs 256 GB - 1 TB |
| Maximum I/O slots | (2) PCIe | (2) PCIe | (2) PCIe | (2) PCIe or (1) PCIe (1) PCI-X |
(4) PCIe or (3) PCIe (1) PCI-X |
(4) PCIe & (2) PCI-X & (1) HTx |
(7) PCIe (incl. (2) Active PCIe) | (7) - (28) PCIe (incl. 2-8 Active PCIe) |
| Sample applications |
-WEB serving -File/print -Networking |
-WEB serving -File/print -Networking |
-Networking -Proxy caching -Security -System management |
-Email/collaboration -Branch office apps -Security -Workgroup applications |
-Email/collaboration -ERP, CRM, SCM applications -Application development -Workgroup database -WEB infrastructure |
-Scientific/engineering -Streaming media |
-Database -Scalable virtualization -DM, DW, BI applications |
-Database -Scalable virtualization -DM, DW, BI applications |
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