M57p

Processor

 * Intel Celeron 440
 * Intel Pentium Dual Core E2160


 * Intel® Core 2 Duo Processor E6550
 * Intel® Core 2 Duo Processor E6750
 * Intel® Core 2 Duo Processor E6850

Cache
12MB cache - Intel Core™ 2 Quad

4MB cache - Intel Core™ 2 Duo

1MB cache - Intel Celeron®

2MB cache - Intel® Pentium® dual core

Chipsets
Q35 North Bridge - Intel 82Q35 Graphics and Memory Controller Hub (GMCH)

ICH9 South Bridge - 82801IO ICH9DO I/O Controller Hub

SMSC SCH5617 LPC Super IO

Winbond TPM

IDE controller

4 Serial ATA connectors

Memory
533MHz / 667MHz / 800MHz DDR2 (Double Data Rate) dual channel memory support

PC2-5300 and PC2-6400 memory supported

Four 1.8V, 240-pin DDR2 SDRAM UDIMM sockets

Support for up to 8 GB of DDR2 SDRAM

ECC or parity memory is not supported

Use 256MB, 512MB, 1GB, or 2GB memory modules in any combination up to a maximum of 8.0GB

Audio
ADI 1882 HD Audio CODEC

Front - Microphone-in, Headphone-in

Rear - Line-in, line-out, Microphone-in

Keyboard and mouse
Preferred Pro full-size keyboard

USB Optical Wheel mouse

Networking
Integrated Intel Gigabit Ethernet

Integrated Intel Pro 1000T Gigabit

Intel 82566DM Ethernet controller

Bays
One 3.5-inch external accessible bay (FDD)

Two 3.5-inch internal hidden bay (HDD)

Two 5.25-inch external half-high bay (optical drives)

External ports
25-pin Extended Capabilities Port (ECP)/Extended Parallel Port (EPP)

9-pin serial connector

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

Standard mouse connector

Standard keyboard connector

Ethernet connector

VGA monitor connector

Three audio connectors (line in, line out, and microphone) on rear panel

Two audio connectors (microphone and headphone) on front panel

One eSATA connector through PCI bracket (some models)

Slots
Slot 1: Full height, PCI Express x16

Slot 2: Full height, PCI Express x1

Slot 3: Full height, half length PCI

Slot 4: Full height, half length PCI

Power management
Advanced Configuration and Power Interface (ACPI) support

Power supply
280 Watt power supply with manual voltage selection switch

Automatic 50/60 Hz input frequency switching

Security chip
One lock to secure both cover and entire system

Power-on password

Administration password

Hard disk password

Boot sequence control

Boot without keyboard, mouse, diskette

USB/ Ethernet/ serial/ parallel/ SATA/ EIDE/ diskette enable or disable.

Diskette write protect

Front USB port disablement

Cover intrusion switch (selected models)

Operating system
Microsoft Windows Vista Business 32

Microsoft Windows Vista Home Basic 32

Microsoft Windows Vista Ultimate 32

Microsoft Windows XP Professional

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

Optical drive
Slim DVD Recordable

Slim Combo Drive 24x24x24x8x

Hard drive features
7200RPM Serial ATA supported

Video
Intel Graphics Media Accelerator 3100

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.

Source
https://support.lenovo.com/us/en/solutions/migr-68844

https://support.lenovo.com/us/en/solutions/migr-69254

https://support.lenovo.com/us/en/solutions/pd005336