M57

Tower (4x5) with Intel Q35 chipset

Supports Intel Core™ 2 Quad™ processor with up to 12MB L2 cache

Supports Intel Core™ 2 Duo™ processor with 2MB or 4MB L2 cache

Supports Intel Celeron®™ with 1MB L2 cache

Supports Intel® Pentium® dual core™ with 1MB or 2MB L2 dual core cache

Supports I/O bus speeds of 1333 MHz

Intel Celeron® processor

Intel Core™ 2 Duo processor

Intel Core™ 2 Quad processor

4MB cache - Intel Core™ 2 Duo

1MB cache - Intel Celeron®

2MB cache - Intel® Pentium® dual core

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

SMSC SCH5617 LPC Super IO

Winbond TPM

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

### **Communications**

#### **Networking**

Integrated Intel Gigabit Ethernet

Intel 82566DM Ethernet controller

### **Expansion**

#### **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**

#### **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**

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)

### **Software**

#### **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.

### **Storage**

#### **Optical drive**

Slim DVD Recordable

Slim Combo Drive 24x24x24x8x

### **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/pd001456