The HP dc7800 is a desktop computer manufactured by Hewlett Packard for use in an office environment. It has three available configurations: Ultra-slim Desktop, Small Form Factor and Convertible Mini-Tower. The Ultra-slim model is the smallest of the three while the Mini-Tower is the largest. None of the dc7800 models comes with a monitor but all three support a broad variety of available hardware configurations.
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The Ultra Slim Desktop (USDT) version of the dc7800 gives users the ability to customise its hardware configuration. It uses SATA hard drives and comes in three configurations: two 80 GB models rated at 5400 or 7200 RPM, a larger 160 GB hard drive that operates at 7200 RPM, or a single 16GB solid-state hard drive. The USDT comes with an integrated network connection and Wi-Fi card. Its graphics output is controlled by an Intel 3100 Graphics Media Accelerator integrated into the motherboard. The USDT model does not have any expansion slots on the motherboard but does offer a single PATA slot that supports one optical drive.
Ultra-slim Memory and CPU
The processors available for the USDT model include CPUs from the Celeron, Pentium and Core 2 Duo families. The available Celeron processors range from 1.6 to 2.0 GHz in speed and include single and dual core models. The available Pentium processors are all dual-core models ranging from 1.8 to 2.5 GHz. The available Core 2 Duo processors are also dual-core CPUs ranging from 2.2 to 3.33 GHz in speed. The RAM available for the USDT comes in sizes ranging from 512 MB to 1 GB. This desktop computer uses a maximum of two DDR2 modules rated at either 677 or 800MHz.
The Small Form Factor model of the dc7800 comes with more powerful features than its USDT counterpart. In addition to the Celeron, Pentium and Core 2 Duo model processors available on the USDT version, the dc7800 SFF model has the option of using quad-core processors from the Intel Core 2 Quad family. These processors range from 2.4 to 2.83 GHz in speed. The RAM available for the SFF includes up to four DDR2 modules rated at either 667 or 800MHz in sizes ranging from 512 MB to 2 GB, with a maximum capacity of 8 GB of RAM.
Other SFF Features
The SFF model's configuration includes one PCI slot, one PCI Express x16 slot and two low-profile PCI Express x1 slots. This model provides two external bays -- one 3.5" and one 5.25" -- as well as one internal 3.5" hard drive bay. It supports up to three SATA devices including a maximum of two hard drives, which are each available in sizes ranging from 80 to 500 GB. The SFF also provides one of three SATA DVD drives and a media card reader with support for 16 to 22 types of media card. Eight options for graphics processing are available ranging from on-board graphics to either ATI or NVIDIA brand graphics cards.
The Convertible Mini-Tower version of the dc7800 offers the broadest selection of hardware configurations. This computer can be equipped with any of the hardware options available on the SFF and USDT models except the slimline PATA DVD drives. The CMT model also provides an expanded selection of ports and upgrade slots including three PCI slots, one PCI Express x16 slot and two PCI Express x1 slots, all full-sized. This model provides four SATA interfaces capable of mounting up to two optical and two hard drives. The CMT can use 10,000 RPM hard drives in 80 or 160 GB SATA models, which the SFF and USDT models do not support. The CMT supports a wider variety of video cards, including a 512 MB ATI Radeon card.
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