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NOTE: Unless otherwise stated, the specifications are identical for mini-tower, desktop, and small form factor computers. Processor Type Quad-Core Intel® Core™ i7 series Intel Core i5 series Dual-Core Intel Core i5 series Intel Core i3 series Intel Pentium® Level 2 (L2) cache Intel Core i7 series Intel Core i5 series 8 MB Intel Core i5 series Intel Core i3 series 4 MB Intel Pentium 3 MB Memory Type DDR3 SDRAM (non-ECC memory only) Speed 1066 MHz or 1333 MHz Connectors four Capacity 1 GB, 2 GB, or 4 GB Minimum memory 1 GB Maximum memory 16 GB Video Integrated Intel graphics media accelerator HD NOTE: Not supported by computers shipped with Intel i7 and Intel i5 quad-core processors. Discrete PCI Express x16 slot supports a PCI Express card Memory - Integrated Up to 1759 MB shared video memory (total system memory greater than 512 MB) Audio Integrated Intel high definition audio Network Integrated Integrated Intel 82578DM Gigabit Ethernet capable of 10/100/1000 Mb/s communication System Information Chipset Intel Q57 Express chipset DMA channels eight Interrupt levels 24 BIOS chips (NVRAM) 64 Mb and 16 Mb Expansion Bus Bus type PCI 2.3 PCI Express 2.0 SATA 1.0A and 2.0 eSATA USB 2.0 Bus speed PCI 133 MB/s PCI Express x1-slot (wireless only) bidirectional speed - 500 MB/s x16-slot (wired as x4) bidirectional speed - 2 GB/s x16-slot bidirectional speed - 8 GB/s SATA 1.5 GB/s and 3.0 GB/s eSATA 3.0 GB/s USB 480 MB/s Cards PCI Mini-tower up to two full-height cards Desktop without riser card — up to two low-profile cards with riser card — up to two full-height cards Small form factor one low-profile card PCI Express x16 (wired as x4) Mini-tower one full-height card Desktop one low-profile card Small form factor none PCI Express x16 Mini-tower one full-height card Desktop without riser card— one low-profile card with riser card— one full-height card Small form factor one low-profile card PCI Express x1 Mini-tower one wireless card Desktop one wireless card Small form factor one wireless card Drives Externally accessible - 5.25-inch drive bay(s) Mini-tower two bays Desktop one bay Small form factor one slimline bay Externally accessible - 3.5-inch drive bay (s) Mini-tower one bay Desktop one bay Small form factor one bay Internally accessible - 3.5 inch drive bay(s) for hard drives Mini-tower two bays Desktop one bay Small form factor one bay NOTE: Your computer can support up to two 2.5 inch hard drives with brackets. External Connectors Audio Back panel two connectors for line-in/ microphone and line-out Front panel two front-panel connectors for headphones and microphone eSATA one 7-pin connector Network one RJ45 connector Parallel one 25-pin connector (bidirectional) Serial one 9-pin connector; 16550C-compatible USB - Front panel Mini-tower four connectors Desktop two connectors Small form factor two connectors USB - Back panel Mini-tower six connectors Desktop six connectors Small form factor six connectors Video one 15-hole VGA connector one 20-pin DisplayPort connector System Board Connectors PCI 2.3 data width (maximum) — 32 bits Mini-tower two 120-pin connectors Desktop two 120-pin connectors Small form factor one 120-pin connector PCI Express x16 (wired as x4) data width (maximum) — four PCI Express lanes Mini-tower one 164-pin connector Desktop one 164-pin connector Small form factor not applicable PCI Express x16 data width (maximum) — 16 PCI Express lanes Mini-tower one 164-pin connector Desktop one 164-pin connector Small form factor one 164-pin connector Serial ATA Mini-tower four 7-pin connectors Desktop three 7-pin connectors Small form factor three 7-pin connectors Memory four 240-pin connectors Internal USB one 10-pin connector (supports two USB ports) Processor fan one 5-pin connector Front I/O one 26-pin connector Front panel control one 14-pin connector Processor one 1156-pin connector Power 12V one 4-pin connector Power one 24-pin connector Internal serial card one 14-pin connector Internal speaker one 5-pin connector PCI Express x1 (wireless card) one 36-pin connector Thermal sensor one 2-pin connector Intruder connector one 3-pin connector Controls and Lights Front of the computer Power button push button Power light blinking blue — indicates that the computer is in sleep state. solid blue — indicates that the computer is in poweron state. blinking amber — indicates a problem with the system board. solid amber (when the computer does not start) — indicates a problem with the system board or power supply. Drive activity light blinking blue — indicates that the computer is reading data from or writing data to the hard drive. Network connectivity light blue — indicates that a good connection exists between the network and the computer. off (no light) — indicates that the computer is not detecting a physical connection to the network. Diagnostic lights four amber lights on the front panel. For more information, see Diagnostics. Back of the computer Link integrity light on integrated network adap...