TECHNICAL SPECIFICATIONS Product   Model Compaq Presario CQ3511L P/N BZ513AA C/O China Processor   Processor Intel® Pentium® Processor E5800 (2M Cache, 3.20 GHz, 800 MHz FSB) Speed supported E5800 3.2 GHz Cache size 2 Mb L2 cache Data bus speed 800 MHz Chipset Intel G41 Express Processor upgrade information Core 2 Quad Q8xx0/Q9xx0 (Yorkfield core) (95W) Core 2 Duo E8xx0 (Wolfdale core) (65W) Core 2 Duo E7xx0 (Wolfdale core) (65W) Pentium Dual Core E5xx0 (Wolfdale core) (65W) Celeron Dual Core E1xx0 (Conroe core) (65W) Celeron 4xx series (Conroe core) (35W) Core 2 Duo Txxxx (Merom core) Memory   Installed Size 1 GB (1 x 1 GB) Technology PC3-10600 MB/sec Type 240 pin, DDR3 SDRAM Maximum allowed up to 4 GB on 64-bit PCs Storage   Hard Drive 320 GB SATA 3G (3.0 Gb/sec) Speed 7200 rpm Optical Storage   Type DVD ROM Network Interface   Ethernet Integrated 10/100 Base-T networking interface Memory card reader   Supports the following cards Supports the following cards: Secure Digital (SD) MultiMediaCard (MMC) Secure Digital High Capacity (SDHC) MultiMediaCard Plus (MMC Plus) xD media (xD) Memory Stick (MS) and Memory Stick Pro (MS-Pro) Expansion / Connectivity   Expansion slots   PCI (1) PCI Express x16 (1) PCI Express x1 (2) PCI Express x1 minicard socket (1) Memory Expansion (2) DDR3 SDRAM DIMM slots I/O ports on the front panel   6-in-1 card reader (1) USB (2) Headphone (1) Microphone (1) I/O ports on the back panel   VGA (1) USB (4) LAN (1) Audio (line in, line out, microphone) (1) Graphics   Video adapter Integrated graphics using Intel GMA x4500 Audio   Audio ALC 662 chipset Feature 6-channel high-definition audio Input Devices   Keyboard Compaq USB keyboard Mouse Compaq USB optical mouse Software   Operating System FreeDOS Chassis   Chassis design Tower Power Supply   Power 218W (100V-240V)