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Detailed specifications - ThinkCentre A52 (type 8155, 8156, 8157, 8158, 8159, 8160) / ThinkCentre M52 (type 8099, 8116, 8215, 9210, 9211)

Architecture Security
Communications Software
Expansion Storage
Power Video

System board / Form factor
  • Small Form Factor (2x3) with Intel 945G chipset
  • Supports Intel Prescott Celeron D processors with 533MHz FSB and 256KB L2 cache
  • Supports Intel Prescott Pentium 4 processors with 533MHz or 800MHz FSB and 1MB or 2MB L2 cache
  • Supports Intel Smithfield Pentium D processors with 800MHz FSB and 2x1MB L2 cache
  • Supports system bus speeds of 533MHz, 800MHz, and 1066MHz
  • Custom BTX system board design
  • LGA 775 socket

Note: Hyperthreading is supported only with Microsoft Windows XP Service Pack 1. Hyperthreading must be disabled when using Windows 2000.

  • Intel® Celeron D Processor 331
  • Intel® Celeron D Processor 336
  • Intel® Celeron D Processor 341
  • Intel® Celeron D Processor 346
  • Intel® Celeron D Processor 351
  • Intel® Celeron D Processor 355
  • Intel® Pentium® 4 Processor 506
  • Intel® Pentium® 4 Processor 516
  • Intel® Pentium® 4 Processor 519
  • Intel® Pentium® 4 Processor 521 with HT Technology
  • Intel® Pentium® 4 Processor 531 with HT Technology
  • Intel® Pentium® 4 Processor 541 with HT Technology
  • Intel® Pentium® 4 Processor 551 with HT Technology
  • Intel® Pentium® 4 Processor 561 with HT Technology
  • Intel® Pentium® 4 Processor 630 with HT Technology
  • Intel® Pentium® 4 Processor 631 with HT Technology
  • Intel® Pentium® 4 Processor 640 with HT Technology
  • Intel® Pentium® 4 Processor 641 with HT Technology
  • Intel® Pentium® 4 Processor 650 with HT Technology
  • Intel® Pentium® 4 Processor 651 with HT Technology
  • Intel® Pentium® 4 Processor 661 with HT Technology
  • Intel® Pentium® D Processor 820
  • Intel® Pentium® D Processor 830
  • Intel® Pentium® D Processor 840
  • Intel® Pentium® D Processor 920
  • Intel® Pentium® D Processor 930
  • Intel® Pentium® D Processor 940
  • Intel® Pentium® D Processor 950


  • 256KB cache - Celeron processors
  • 1MB cache - Pentium 4 processors
  • 2MB cache - Pentium 4 processors
  • 2x1MB L2 cache - Pentium D processors
  • 2x2MB L2 cache - Pentium D processors
  • Intel 945G Graphics Memory Controller Hub - NG82945G chipset
    • Integrated Intel Graphics Media Accelerator 950
      • Runs at 333MHz
    • Single and Dual channel memory capability
    • 1202-pin FCBGA package
  • Intel I/O Controller Hub (ICH7) - 82801GB chipset
    • 652-pin PBGA package
    • PCI Express x1 slot support
    • New Direct Media Interface (DMI) to Northbridge (x4 PCI Express like)
    • High Definition Audio
  • AC '97 2.3 Digital controller
IDE controller
  • 2 Serial ATA connectors
  • 1 Parallel ATA connector
  • 400MHz DDR2 (Double Data Rate) dual channel memory support
  • PC2-4200 (533MHz) memory supported
  • PC2-5300 (667MHz) memory supported
  • Two 240-pin DDR2 SDRAM UDIMM sockets
  • Supports a maximum memory up to 4GB
    • If 4GB of physical memory is installed approximately 3GB will be useable by the operating system. This is due to limitations from the address mapping of PCI busses and other system devices.
  • ECC or parity memory is not supported
  • SoundMAX Cadenza with SPX
  • Integrated High Definition (HD) PCI AC'97 2.3 compliant codec
  • ADI 1981HD codec
  • Front - Microphone-in, Headphones out, IEEE 1394 (optional)
  • Rear - Line-in, line-out
  • Jack sensing, jack retasking - software will automatically detect which jack the microphone is using.
  • Software-based audio (done by processor and ICH8)
  • Internal mono speakers (select models)
Keyboard and mouse
  • Preferred Pro full-size keyboard
  • Productivity keyboard (select models)
  • Fingerprint reader keyboard (select models)
  • USB Optical ScrollPoint mouse
  • Two-button PS2 mouse (select models)
  • USB Optical Wheel mouse (select models)

  • Integrated Intel Gigabit with Intel 82573E
  • Intel Advanced Management Technology (iAMT) features (to be supported at a later date):
    • Out-of-band (OOB) system management, which allows remote management of platforms regardless of power on/off state or operating system (OS) state.
    • Remote troubleshooting and recovery, which significantly reduces desk-side visits, increasing the efficiency of IT technical staff.
    • Proactive alerting, which decreases downtime, minimizes time-to-repair and can lead to increasing mean time between failures.
    • Nonvolatile storage, which survives power outages and system rebuilds.
    • Tamper-resistant agents, which prevent users from removing critical inventory, remote-control, software and patch distribution or virus-protection agents.
    • Remote hardware and software tracking, which eliminates time-consuming manual inventory tracking and human error and reduces asset accounting costs

  • One 3.5 inch, slim-line half-inch, diskette drive bay (populated on selected models)
  • One 3.5 inch, standard size, hard drive bay (populated)
  • One 5.25 inch, standard size, optical drive bay (populated)
External ports
  • Eight USB (two in front, six in back) [version 2.0]
  • One Ethernet RJ-45
  • Two serial 9-pin 16550 compatible
  • One parallel 25-pin parallel (EPP, ECP), IEEE 1284
  • Keyboard, mouse, and VGA monitor ports
  • Line-out, line-in, microphone audio jack-in, and headphone-out jacks
  • Slot 1: half length, 1 lane PCI Express or 1 ADD 2-R
  • Slot 2: half length PCI [version 2.2]

Power management
  • ACPI 2.3 compliant
Power supply
  • 225 watt supply with variable fan speed
  • 110 volt or 220 volt operation controlled by a switch on the back of the unit

  • Security chip - National PA3S with integrated TPM 1.2
  • Asset ID EEPROM
  • Padlock loop (in rear for optional padlock)
  • Security slot (in rear for attachment of optional cable lock)
  • No keylock
  • Power-on password
  • Configuration password (administrator password)
  • Hard drive password (user and master)
  • Boot sequence control
  • Diskette boot inhibit
  • Boot without keyboard, mouse, or diskette
  • USB/Ethernet/serial/parallel/SATA/EIDE/diskette enable or disable
  • Disk, removable device, and network device password
  • Diskette write protect
  • Front USB port disablement
  • Serial port I/O control
  • Parallel port I/O control
  • Cover intrusion switch (select models)

Security chip features:

  • Offers platform and user authentication (requires download of security software)
  • Executes all private key-related Public Key Infrastructure (PKI) operations right on the chip (requires third party digital certificate, not included)
  • Designed to enable secure storage of private keys (requires third party digital certificate)
  • Supports industry standard cryptographic interface (MSCAPI and PKCS#11)Provides more secure access authentication by coordinating with Windows logons and strengthening Lotus Notes logons
  • Encrypts and decrypts files, folders, and messages with 1024-bit digital signature and up to 256-bit key exchange
  • Digital signatures allow non-repudiation and data integrity
  • Integrates with optional biometrics and proximity badges
  • Adheres to the Trusted Computing Group specification recognized by over 180 companies

Operating system
  • Microsoft Windows XP Home
  • Microsoft Windows XP Professional

Note: Preloaded software utilizes the disk-to-disk recovery method. Select models ship without the Operating system.

Optical drive
  • 48x CD-ROM
  • 16x DVD-ROM
  • 48x32x48x CD-RW drive
  • 48x32x48x16x CD-RW/DVD combo drive
  • Multi-Burner Plus 16x
Hard drive features
  • 7200RPM Serial ATA supported

Intel Graphics Media Accelerator 950
  • 15-pin VGA output on planar
  • Uses Intel Dynamic Video Memory Technology (DVMT)

For models without a separate video card, memory supports both system and video.

Resolution, maximum color depth, and refresh rates
  • 640 x 480, 16M colors (200Hz)
  • 800 x 600, 16M colors (200Hz)
  • 1024 x 768, 16M colors (200Hz)
  • 1152 x 864, 16M colors (200Hz)
  • 1280 x 1024, 16M colors (160Hz)
  • 1600 x 1200, 16M colors (120Hz)
  • 1920 x 1080, 16M colors (120Hz)
  • 1920 x 1200, 16M colors (100Hz)
  • 1920 x 1440, 16M colors (90Hz)
  • 2048 x 1536, 16M colors (85Hz)

  • Alias ID: MIGR-60416
  • Document ID: PD006096
  • Last Updated :02 Jul 2015
  • © 2015 Lenovo