vIntel Celeron® D processor

vIntel Core2 Duo processor

vInternal cache (size varies by model type)

Memory

vSupport for two double data rate 2 dual inline memory modules (DDR2 DIMMs)

vFlash memory for system programs (varies by model type)

Internal drives

v3.5-inch, half-inch (slim) diskette drive (some models)

vSerial Advanced Technology Attachment (SATA) internal hard disk drive

vOptical drive (some models)

Video subsystem

vAn integrated graphics controller for a Video Graphics Array (VGA) monitor

vIntel Graphics Media Accelerator 3000

Audio subsystem

vHD with ADI 1986A Audio Codec

vMicrophone and headphone connectors on the front panel

vLine in and line out connectors on the rear panel

vMono internal speaker (some models)

Connectivity

v10/100/1000 Mbps integrated Ethernet controller

vPeripheral Component Interconnect (PCI) V.90 Data/Fax modem (some models)

System management features

vPreboot Execution Environment (PXE) and Dynamic Host Configuration Protocol (DHCP)

vWake on LAN®

vWake on Ring (in the Setup Utility program, this feature is called Serial Port Ring Detect for an external modem)

vRemote Administration

vAutomatic power-on startup

vSystem Management (SM) BIOS and SM software

vAbility to store power-on self-test (POST) hardware test results

Input/output features

v25-pin Extended Capabilities Port (ECP)/Extended Parallel Port (EPP)

v9-pin serial connector

vEight USB connectors (two on front panel and six on rear panel)

vEthernet connector

vVGA monitor connector

vTwo audio connectors (line in and line out) on rear panel

vTwo audio connectors (microphone and headphone) on front panel

12User Guide

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Lenovo 9638, 9643, 9644, 9645, 9640, TC A55-9636 manual Memory

TC A55-9636, 9640, 9645, 9644, 9643 specifications

Lenovo has consistently been at the forefront of innovation in the computing world, with a range of laptops and desktops that cater to a variety of needs and preferences. Among their popular offerings are the Lenovo 9640, 9643, TC A55-9636, 9644, and 9645. Each of these models is designed to provide exceptional performance, reliability, and user-friendly experience, making them appealing choices for both personal and business use.

The Lenovo 9640 is renowned for its sleek design and powerful performance. This model is equipped with the latest Intel processors, ensuring smooth multitasking and efficient power consumption. It features a vibrant display that provides excellent color accuracy and vivid visuals, making it ideal for content creators and casual users alike. With ample storage options and high-speed SSD configurations, users can expect fast boot times and quick file access.

Similarly, the Lenovo 9643 builds on this legacy, offering enhanced graphics capabilities with dedicated GPU options. This feature is particularly beneficial for gamers and professionals who rely on graphical performance for tasks such as video editing or 3D modeling. The 9643 also emphasizes connectivity, providing a range of ports, including USB-C, HDMI, and Ethernet, ensuring users can easily connect to peripherals and networks.

The TC A55-9636 is Lenovo's entry into the compact desktop market, designed for users seeking a powerful, space-saving solution. With its robust performance metrics and energy-efficient components, the A55-9636 is perfect for both home and office environments. It supports a variety of multitasking scenarios, making it suitable for productivity-driven tasks, while its expandable architecture means users can upgrade components as their needs evolve.

The Lenovo 9644 and 9645 round out this impressive lineup with their focus on business-centric features. These models provide enhanced security options, including fingerprint readers and TPM chips, catering to enterprises that prioritize data protection. With long battery life and solid build quality, both models promise durability and reliability, critical for professionals who are always on the go.

All models in this series showcase Lenovo's commitment to sustainability, incorporating eco-friendly materials and energy-efficient technologies. The user-friendly interfaces across the devices ensure a seamless experience, meeting the demands of a broad user base from students to business executives. In summary, the Lenovo 9640, 9643, TC A55-9636, 9644, and 9645 represent a versatile range of computing solutions that combine cutting-edge technology with efficiency, ensuring users can achieve their goals effectively and stylishly.