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Lenovo Thinkcentre M91P

Lenovo Thinkcentre M91P
alaScore 85

69 reviews

Feb, 2018

alaTest has collected and analyzed 69 reviews of Lenovo Thinkcentre M91P. The average rating for this product is 4.1/5, compared to an average rating of 4.2/5 for other Desktops for all reviews.

We analyzed user and expert ratings, product age and more factors. Compared to other Desktops the Lenovo Thinkcentre M91P is awarded an overall alaScore™ of 85/100 = Very good quality.

Review analysis

(Based on 69 reviews)

Expert Reviews  

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Consumer review by: ( review summary for Lenovo Thinkcentre M91P


alaTest has collected and analyzed 5 user reviews of Lenovo Thinkcentre M91P from The average user rating for this product is 4.0/5, compared to an average user rating of 4.0/5 for other Desktops on

80% of the reviews on give this product a positive rating.

This summary is based on the products: Thinkcentre M91P TowerThinkcentre M91P Tower

Feb, 2018

Expert review by: Sarah Jacobsson Purewal (

Lenovo ThinkCentre M91p: Business-Class Desktop PC Lacks Frills


If you love the old-school look of Lenovo ThinkPads, but you want desktop performance and pricing, check out Lenovo's ThinkCentre M91p series. This machine packs second-generation Intel processors into a slim, retro-style case.

Plenty of USB ports

Poor performance, for the price

It has the look of an old-school ThinkPad, but you can get similar performance and better specs at a lower price.

Aug, 2011

Editor's Choice!

Expert review by: (

Lenovo ThinkCentre M91p


The system has a decent amount of internal room for a USFF PC. The top of the case pops open by pushing a blue tab on the back panel, and the whole chassis opens clamshell-style to present the system's compact motherboard. It has full-size optical and...

Compact form factor. High build quality. Includes PCI card slot, DisplayPort jack. Easily serviced

No HDMI, eSATA, USB 3.0 ports. Only one-year warranty included. Uses external power supply

The Lenovo ThinkCentre M91p defines the enterprise-class desktop, with an easy-to-service yet sturdy chassis. Its Intel Core i5 processor will satisfy your workers for a while.


Expert review by: Daniel A. Begun (

Lenovo ThinkCentre M91p 0266 (B8U) Ultrasmall Desktop


Not so long ago, if you wanted a compact business PC, you'd have to dial down your performance expectations and pay several hundred dollars extra for the convenience of saving a few inches of office space. But the Lenovo ThinkCentre M91p 0266 (B8U)...

Compact design ; Full-size hard drive and optical drive increase upgrade potential ; Supports Intel vPro technology

Limited expansion options ; Potential warranty confusion

An innovate design, full-size drives, built-in security, and remote management features make the M91p Ultrasmall compact business PC a good choice for space-strapped work groups.

Aug, 2011

Expert review by: Greg Crowe (

ThinkCentre desktop comes in a nice little package


The Lab looks at the ThinkCentre M91p, an Ultra-Slim Formfactor desktop computer to see how this type of computer holds up.

Good internal space management; good speed

Not much room for upgrades; integrated graphics performance is low

Jul, 2011

Expert review by: Sarah Jacobsson Purewal (

Lenovo ThinkCentre M91p review


The Lenovo ThinkCentre M91p is a slim, small-form factor PC for the office.

The Lenovo ThinkCentre M91p is a solid performer at a reasonable price. It lacks a Blu-ray disc drive and integrated Wi-Fi, but shop around online and you may grab a bargain.

Aug, 2011

Consumer review by: Darren F. (

Incorrect Description


expensive for only a second generation


this is a second generation intel core i5 not fourth generation . There is a big difference

May, 2016

Consumer review by: Kirk P. (

Does not support Windows 10



M91P does not support Windows 10. I spent a lot of time trying to find that out and get it to work and it won't. Also this unit is oddly slow considering the processor it has. I've tried it with W7 and various flavors of Linux and had the same...

May, 2016

Consumer review by: Anonymous (

Good value for the money


The computer came well packaged and worked out of the box. It was quite fast for the price. Had no problems with pre-loaded Windows 7 and everything worked fine.

Came pre-loaded with a few annoying "bulk-ware" software that I removed.

Apr, 2016

Consumer review by: John R. (

Great units - purchased two for programming...


- good basic programming computer; not designed for gaming - solid working performance yet fair speed - no complaints excluding video chip that I still have to call on - arrived well shipped and within expected time range

- little marred on paint... expected from a normal used system - one of the units video chips smells of ozone... failing; yet to call

Apr, 2016

Consumer review by: James R. (

Weak Refurbish


If you have the time and knowledge to reload the proper things to make it work, then I would recommend this. If you just need to plug it in and go, I would recommend a new unit.


This was the 2nd refurbished unit that I received. The 1st one just has blue screen and locked up. I returned it and I was sent this one... Same issues. I didn't have time to wait for another exchange process, so I had an I.T. guy figure out that a...

Mar, 2016

Product Specifications


Certification:EPEAT Gold, RoHS / RoHS
Energy Star certified: / Yes
EPEAT compliance: / Gold
RoHS compliance:No / Yes


Cable lock slot:Kensington / Yes
Chassis type: / SFF / Tower / USFF
Color of product: / Black
Intel segment tagging:Enterprise, Professional
Number of 3.5" bays:1 / 2
Number of 5.25" bays:1 / 2
Placement supported: / Vertical
Water cooling system:N

Energy Management

Power supply:150 / 240 / 280
Power supply input frequency:50/60
Power supply input voltage:100 - 240

Expansion Slots

PCI Express x1 slots:1
PCI Express x16 slots:1
PCI slots:1 / 2


Discrete graphics adapter memory:512
Discrete graphics adapter model:AMD Radeon HD 5450 / Intel HD Graphics / No
Discrete graphics memory type:GDDR3
Maximum graphics adapter memory:0.5
Number of displays supported (on-board graphics):2
On-board graphics adapter:Y / Yes
On-board graphics adapter base frequency:850
On-board graphics adapter dynamic frequency (max):1100 / 1350
On-board graphics adapter family:Intel® HD Graphics
On-board graphics adapter ID:0x102
On-board graphics adapter model:Intel HD Graphics / Intel HD Graphics 2000


Internal memory:2 / 4
Internal memory type:DDR3-SDRAM
Maximum internal memory:16 / 8
Memory clock speed:1333
Memory layout:1 x 2 / 1 x 4
Memory layout (slots x size):1 x 2 / 1 x 4
Memory slots: / 2x DIMM / 2x SO-DIMM / 4x DIMM


Bluetooth: No
Cabling technology:10/100/1000Base-T(X)
Ethernet LAN:Y
Ethernet LAN connection: Yes
Ethernet LAN data rates:10,100,1000
Internal modem: No
Wake-on-LAN ready: / No / Yes
Wi-Fi:No / Yes
Wi-Fi standards:802.11b, 802.11g, 802.11n

Operational Conditions

Operating altitude:-590.6 - 120000
Operating relative humidity (H-H):20 - 80
Operating relative humidity range:20 - 80
Operating temperature (T-T):10 - 35
Operating temperature range (T-T):10 - 35
Storage temperature (T-T):-10 - 60
Storage temperature range (T-T):-10 - 60

Optical Drive

BD interface type:SATA
Optical Drive Type: / DVD Super Multi DL / DVD-ROM / DVD-RW / DVD±RW
Optical drives quantity:1

Other Features

Built-in camera: No
Compliance industry standards:IEEE 802.3, IEEE 802.3u / IEEE 802.3, IEEE 802.3u, IEEE 802.3ab / IEEE 802.3/u/ab
Cooling type:Active
Data Transfer Rate:1000
Display:LCD / TFT
Ethernet interface type:
Floppy drive installed: No
Graphics adapter family:ATI / Intel
Graphics adapter memory type:
Hard disk drive type:500GB SATA/ 7200
Headphone connectivity:3.5 mm
Intel Virtualization Technology:VT-d, VT-x
Intel® Virtualization Technology (Intel® VT):VT-d,VT-x
Mac compatibility: No
Manageability features:ImageUltra enabled, Password management, System Migration Assistant
Maximum number of SMP processors:1
Maximum Resolution:2048 x 1536
Memory Type:DDR3 SDRAM
Microphone connectivity:3.5 mm
Modem Type:N
Networking features:Gigabit Ethernet / Gigabit Ethernet LAN
Number of hard drives supported:1
Number of loudspeakers:1
Number of slots:2
Number of Speakers:1
On-board graphics adapter: Yes
Operating temperature (T-T):50 - 95
Operating temperature range (T-T):50 - 95
Plug and Play: Yes
Pointing device:USB Optical Wheel Mouse
Power supply type:AC / AC/DC
Processor Manufacturer:Intel
Security Features:Chassis intrusion switch, Kensington Lock Standard Enabled, Padlock loop, USB port individual disable
Service included:Onsite
Speakers:monitor built-in / Yes
TV tuner integrated: No
Warranty:Three year parts and labour
Warranty note:Three year parts and labour
Weight:16.5 / 24.3 / 9.22
Weight (imperial):16.5

Packaging Content

Aspect Ratio:16:10 / 16:9
Bundled software:ThinkVantage System Update, ThinkVantage Productivity Center, Sun JRE, Lotus Notes Stand-alone Client (license), Adobe Acrobat Reader\nThinkVantage Rescue and Recovery, PC-Doctor diagnostics, Norton Internet Security 2007 (OEM Edition) with 90 days of virus definition updates
Cables included:AC
Contrast ratio (typical):10000:1 / 1000:1 / 600:1 / 800:1
Display brightness:200 / 250 / 300
Display Diagonal:17 / 18.5 / 19 / 21.5 / 22 / 23 / 23.6 / 24
Display included:No / Yes
Display number of colors:16.78 million colours
Display Resolution:1280 x 1024 / 1366 x 768 / 1440 x 900 / 1680 x 1050 / 1920 x 1080 / 1920 x 1200
Display Type:LED
Drivers included: Yes
Handheld remote control: / No
Keyboard supplied:No / Yes
Mouse included: Yes
Touch screen: No
Viewing angle, horizontal:160 / 170 / 176 / 178 / 90
Viewing angle, vertical:160 / 170 / 176 / 178 / 60
Windows keys:


Audio system:HD / HD Audio / HDA / Realtek ALC662
Chipset:Intel Q65 Express / Intel Q67 Express / Intel QM67 Express
Compatible processor series:Core i5 / Core i5, Core i7
Motherboard chipset:Intel Q65 Express / Intel Q67 Express / Intel QM67 Express
Product type:PC

Ports & interfaces

Combo headphone/mic port: No
DC-in jack:No / Yes
DisplayPorts quantity:1
DVI port:No / Yes
Ethernet LAN (RJ-45) ports:1
Ethernet LAN (RJ-45) ports quantity:1
HDMI ports quantity:1
Headphone outputs:1 / 2 / 3
Line-in: Yes
Line-out: Yes
Microphone in:No / Yes
PS/2 ports quantity:2
S/PDIF out port: No
Serial ports quantity:1
SmartCard slot: No
USB 2.0 ports quantity:8
VGA (D-Sub) ports quantity:1


Power supply:150 / 240 / 280
Power supply input frequency:50/60
Power supply input voltage:100 - 240


Bus type:DMI
Conflict Free processor:N
CPU multiplier (bus/core ratio):31 / 34
ECC supported by processor:N
FSB Parity: No
L2 cache:6
L3 cache:6
Maximum internal memory supported by processor:32
Maximum number of PCI Express lanes:1 / 16
Memory bandwidth supported by processor (max):21
Memory channels supported by processor:Dual
Memory clock speeds supported by processor:1066,1333
Memory types supported by processor:DDR3-SDRAM
Number of processors installed:1
PCI Express slots version:2.0
Processor:i5-2400 / i5-2400S / i5-2500 / i7-2600
Processor boost frequency:3.4 / 3.8
Processor cache:1, 6 / 6 / 8
Processor cache type:Smart Cache
Processor codename:Sandy Bridge
Processor cores:4
Processor family:2nd gen Intel® Core™ i5 / 2nd gen Intel® Core™ i7 / Intel Core i5-2xxx / Intel Core i7-2xxx
Processor frequency:2.5 / 3.1 / 3.3 / 3.4
Processor front side bus:1333
Processor lithography:32
Processor model:i5-2400 / i5-2400S / i5-2500 / i7-2600
Processor operating modes:64-bit
Processor Series:Intel Core i5-2400 Desktop series / Intel Core i5-2500 Desktop series / Intel Core i7-2600 Desktop series
Processor socket:Socket H2 (LGA 1155)
Processor threads:4 / 8
System bus data transfer rate:5
System bus rate:5
Thermal Design Power (TDP):65 / 95

Processor special features

CPU configuration (max):1
Embedded options available:No / Yes
Enhanced Intel SpeedStep Technology: Yes
Execute Disable Bit: Yes
Idle States: Yes
Intel 64:Y
Intel AES New Instructions: Yes
Intel Anti-Theft Technology: No
Intel Clear Video HD Technology: Yes
Intel Clear Video Technology:N
Intel Clear Video Technology for MID: No
Intel Demand Based Switching: No
Intel Dual Display Capable Technology: Yes
Intel Enhanced Halt State: Yes
Intel Fast Memory Access: Yes
Intel FDI Technology: Yes
Intel Flex Memory Access: Yes
Intel Hyper-Threading Technology:No / Yes
Intel Identity Protection Technology:No / Yes
Intel Identity Protection Technology version:1.00
Intel Insider: Yes
Intel InTru 3D Technology: Yes
Intel My WiFi Technology: No
Intel Quick Sync Video Technology: Yes
Intel Rapid Start Technology: No
Intel Rapid Storage Technology: No
Intel Smart Connect Technology: No
Intel Smart Response Technology: No
Intel Trusted Execution Technology: Yes
Intel Turbo Boost Technology:2.0
Intel Virtualization Technology (VT-x):Y
Intel Virtualization Technology for Directed I/O (VT-d):Y
Intel vPro Technology: Yes
Intel VT-x with Extended Page Tables (EPT): Yes
Intel Wireless Display (WiDi) Technology: No
Intel® AES New Instructions (Intel® AES-NI):Y
Intel® Anti-Theft Technology (Intel® AT):N
Intel® Clear Video HD Technology (Intel® CVT HD):Y
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID):N
Intel® Hyper Threading Technology (Intel® HT Technology):N / Y
Intel® Identity Protection Technology (Intel® IPT):N / Y
Intel® Insider™: Yes
Intel® InTru™ 3D Technology:Y
Intel® My WiFi Technology (Intel® MWT):N
Intel® Quick Sync Video Technology: Yes
Intel® Rapid Start Technology: No
Intel® Small Business Advantage (Intel® SBA):N
Intel® Smart Response Technology: No
Intel® Turbo Boost Technology:2.0
Intel® vPro™ Technology:Y
Intel® Wireless Display (Intel® WiDi):N
InTru™ 3D Technology: Yes
Processor ARK ID:52207 / 52208 / 52209 / 52213
Processor code:SR00B
Processor package size:37.5
Supported instruction sets:AVX / AVX, SSE4.1, SSE4.2
Thermal Monitoring Technologies: Yes


Operating system architecture:32-bit / 64-bit
Operating system installed: / Windows 7 Home Basic / Windows 7 Professional


Card reader integrated:No / Yes
Hard disk rotational speed:7200
Hard Drive Capacity:1 / 1000 / 250 / 320 / 500
Hard Drive Interface:Serial ATA / Serial ATA II / Serial ATA II, Serial ATA III / Serial ATA III
Hard Drive Size:3.5
Hard drive speed:7200
Host interface: / SATA / Serial ATA II / Serial ATA II, Serial ATA III / Serial ATA III
Number of hard drives installed:1 / 2
Number of storage drives installed:1
RAID levels:0, 1
RAID support: Yes
Storage media:HDD
Total Storage Capacity:1000 / 250 / 320 / 500

Weight & Dimensions

Depth:13.3 / 14.5 / 17.4 / 9.37
Height:14.5 / 16.3 / 3.11 / 3.9 / 3.93
Weight:16.5 / 24.3 / 9.22 / 9.26
Width:10.8 / 13.3 / 3.9 / 6.89