M90

System board / Form factor
Tower (4x4) form factor with Intel Q57 Chipset

Bandwidth DDR III 1066/1333, Dual channel

Supports upto 8GB RAM and cache of 8GB

Processor
Intel® Pentium® Processor G6950 with dual-core

Intel Core® Processor i3-530 with dual-core

Intel Core® Processor i3-540 with dual-core

Intel Core® Processor i5-750 with quad-core

Intel Core® Processor i5-650

Intel Core® Processor i5-660

Intel Core® Processor i5-670 with dual-core

Processor in LGA1156 socket

Cache
8MB to 32MB cache, processor dependent

Chipset
Intel Q57 Express Chipset

Platform Controller Hub (PCH) for PCI, ethernet and USB,

SMSC® SCH5147 Super I/O

Memory
2GB standard, supports upto 8GB maximum

UDIMM, PC3-10600 1333MHz DDR3, four 240-pin DIMM sockets

Audio
Integrated ADI Audio

High Definition (HD) Audio, Realtek® ALC662 codec, 5.1 Chipset

Keyboard and mouse
Lenovo Preferred Productivity Full Size Keyboard

Fingerprint Keyboard

Ultraslim Wireless kit -keyboard

USB OptiCal Wheel Mouse - 400dpi

Networking
One gigabit ethernet port

Intel 82578DM, Wake on LAN®

Bays
One 3.5 inch external accessible bay (Memory Card Reader)

One 3.5 inch internal hidden bay (HDD, 2nd optional)

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

External ports
Eight high speed USB connectors (two on front panel and Six on rear panel)

One integrated VGA port

Ethernet connector
One Integrated Display port

Two USB 2.0 planar connections (1 used, one open for media reader or 2 rear USB ports)

Two audio connectors (microphone in and audio out) on front panel

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

Two PS/2 for keyboard and mice

Slots
One half-length, full-height, PCIe

One half-length, full-height, PCI Express x16

Two half-length, full-height, 32-bit PCI 2.3

Power management
Advanced Configuration and Power Interface (ACPI) support

Power supply
280 watts with variable speed fan, autosensing, 85% PSU

280 Watt (Japan), 80% plus, auto-sensing power supply unit

115 to 230 Volt; 50 to 60 Hz

Security
Security chip (see information on left)

One lock to secure both cover and entire system to fixed object:

Padlock loop (in rear for opt padlock)

Security slot (in rear for optional Kensington® MicroSaver® cable)

Power-on password

Hard disk password

Boot sequence control

Boot without keyboard and mouse

Serial port I/O control

Individual USB port disablement

Operating system
Windows Vista Home Basic 32-bit SP1

Windows Vista Business 32-bit SP1

Windows 7 Professional 32-bit

Windows 7 Professional 64-bit

Windows 7 Home Premium 32-bit

Windows 7 Home Basic 32-bit

Windows XP Home SP3 (For LC only) License (Free DOS for Lenovo China) SP1 (SP2 if available) for Windows Vista Home Basic 64/ Home Premium 64/ Ultimate 64/ Enterprise 32 64 (Support Only)

Windows XP Home SP3 (Support Only)

Windows XP Professional SP3 (Downgrade from Vista Business or Windows 7)

Redhat Linux/Novell Linux/ SUSE Linux/Ubuntu Linux (Certified)

Optical drive
DVD-ROM

DVD Recordable

Media Card Reader

Multi-Slot RTS5111F Card Reader with crust

USB 2.0 Mass Storage Device (Flash)

Hard drive features
7200RPM Serial ATA supported

Flash Solid State Drive

Supports 160GB, 250GB, 320GB, 500GB and 1TB

Intergrated Graphics Adapter
NVIDIA GeForce 310 512MB DDR3 (VGA+DP)

ATI Radeon HD4650

NVIDIA Quadro FX380 (DVI + DP)

EMC
FCC - Part 15, Subpart B (US)

VCCI (Japan)

ICES-003 (Canada)

BMSI - CNS13438, Class B (Taiwan)

EU/EFTA CE Mark & DoC

C-Tick DoC (ANZ)

KCC (Korea

Safety
UL/CUL

DEMKO-GS

IEC60950-1 CB Report/Certificate

ICCP(SASO)

SAR (Hong Kong)

S-mark (Argentina)

EU/EFTA CE Mark & DoC

CCC (China)

NOM (Mexico)

SABS (South Africa)

GOST-R Mark (AR46) (Russia)

Environment
China RoHS (China)

EU RoHS (EU)

EU WEEE (EU)

EU Battery Law (EU)

EuP (EU)

Turkey RoHS (Turkey)

Turkey Battery Law (Turkey)

Korea RoHS (Korea)

Korea E-Standby (Korea)

USA Chemical Emission Test (USA)

Greenguard (USA/Japan)

PC Green Label (Japan)

J-Moss (Japan)

China Certification Requirement
CCC (Certificate for China Compulsory Product Certification)

RoHs (China)

CSC (China)

CEL (China)

SITA* (Society of International Aeronautical Telecommunications )

Surge immunity

ThinkCentre M90 and M90p systems may carry other certifications that are not listed above. Please contact your local Lenovo Sales Representatives for more certifications in your area.

Industry Standards
All systems conforms to the following industry standards:

ACPI v2.3

ATAPI

DMI v2.0

IEEE 1284 (enhanced parallel port)

IEEE 1294 (parallel port)

IEEE 802.3 (Ethernet)

JEDEC 240-pin DIMM memory

SmBios v2.3.4

PC 2001

PCI v2.3 and PCI BIOS v2.1

Serial ATA II

PXE v2.1

USB v2.0

Source
https://support.lenovo.com/us/en/solutions/migr-74675?cl=1