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Lenovo Thinkcentre M91P

Lenovo Thinkcentre M91P
alaScore 85

96 reviews

Apr, 2019

alaTest has collected and analyzed 96 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. Reviewers are impressed by the design and reliability. The usability and price also get good feedback. Reviews are divided on the size.

price, usability, reliability, design

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 96 reviews)

Expert Reviews  

User Reviews  

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Expert Reviews User Reviews


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Showing 1 - 15 of 91 Show Reviews: in English | in other languages (3)

Consumer review ( 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 Reviewers are impressed by the price, but there are some less positive opinions about the design.



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

Apr, 2019

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

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

Consumer review (

works well


It works well and does what I bought it for. Upgraded the graphics and power supply.

The specifications don't tell you the type of motherboard or power supply stats. That was annoying. had to receive it to realize that the power supply only had SATA connectors.

May, 2016

Consumer review (

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 (

Very nice workstation. Worked right out of the box


I would definitely recommend this item to other people. Specifications were acceptable and could probably handle some gaming, with the addition of a video card. It would also have been nice to have the OS preinstalled and patched so I wouldn't have...

Computer worked right out of the box. Had a DVD writer. Came with Windows 7 OS. Not bad performance. Appears upgradeable.

OS not preinstalled.

May, 2016

Consumer review (

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 (

Great computer for the money and has windows 10 already on it.


Would highly recommend this product to anyone

Set-up was easy

There is a learning curve in using windows 10

May, 2016

Product Specifications


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


Cable lock slot:Kensington / Y / Yes
Cable lock slot type:Kensington
Chassis Type:SFF / Tower / USFF
Colour of product:Black
Intel segment tagging:Enterprise, Professional
Number of 3.5" Bays:1 / 2 / 3
Number of 5.25" Bays:1 / 2
Placement supported: / Horizontal / Horizontal/Vertical / Vertical
Product colour:Black
Water cooling system: No

Expansion slots

PCI Express x1 (Gen 2.x) slots:1
PCI Express x1 slots:1
PCI Express x16 (Gen 2.x) slots:1
PCI Express x16 slots:1
PCI slots:1 / 2


Discrete graphics adapter memory:1024 / 512
Discrete graphics adapter model:AMD Radeon HD 5450 / AMD Radeon HD 6450 / Intel HD Graphics / No
Discrete graphics memory type:GDDR3
Maximum graphics adapter memory:0.5
Number of displays supported (on-board graphics):2
Number of displays supported by on-board graphics adapter:2
On-board graphics adapter:Y
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 / Intel® HD Graphics


Internal Memory:2 / 4
Internal memory type:DDR3-SDRAM
Maximum internal memory:16 / 8
Memory clock speed:1066 / 1333
Memory layout (slots x size):1 x 2 / 1 x 4
Memory slots:2x DIMM / 2x SO-DIMM / 4x DIMM / 4x SO-DIMM


Bluetooth:No / Yes
Cabling technology:10/100/1000Base-T(X)
Ethernet LAN:Y / Yes
Ethernet LAN data rates:10,100,1000
Internal modem: No
Top Wi-Fi standard:Wi-Fi 4 (802.11n)
Wake-on-LAN ready:No / Y / Yes
Wi-Fi:N / No / Yes
Wi-Fi standards:802.11b, 802.11g, 802.11n

Operational conditions

Operating altitude:-15 - 3048
Operating relative humidity (H-H):20 - 80
Operating temperature (T-T):10 - 35
Storage temperature (T-T):-10 - 60

Optical Drive

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

Other features

Audio system manufacturer:Realtek ALC662
Built-in Camera: No
Built-In Microphone:No / Yes
Built-In Optical Drive:
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: / Gigabit
Floppy drive installed: No
Form factor:Small Form Factor / USFF
Graphics adapter family:AMD / ATI / Intel
Graphics adapter memory type:
Hard disk drive type:500GB SATA/ 7200
HDD user password: Yes
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
Plug and Play: Yes
Pointing device:USB Optical Wheel Mouse
Power requirements:100-240V
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:One year / Three year parts and labour
Warranty note:One year / Three year parts and labour
Weight:11 / 16.5 / 4.18 / 4200 / 7.5
Weight (imperial):16.5

Packaging Content

Aspect Ratio:16:10 / 16:9
Bundled software:Windows Vista(R); Windows XP Home (SP1); Windows XP Professional; Windows XP Professional x64; Windows 2000 Professional (SP4); Mac OS X v 10.5 +
Cables included:AC
Contrast ratio (typical):10000:1 / 1000:1 / 600:1 / 800:1
Display brightness:200 / 250 / 300
Display diagonal:43.2 / 47 / 48.3 / 54.6 / 55.9 / 58.4 / 59.9 / 61
Display included:N / No / Yes
Display number of colours: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 Included:N / Y
Keyboard number of keys:104
Keyboard supplied:No / Yes
Mouse included:N / Y / Yes
Touchscreen: No
Viewing angle, horizontal:160 / 170 / 176 / 178 / 90
Viewing angle, vertical:160 / 170 / 176 / 178 / 60
Windows keys: Yes


Audio chip:Realtek ALC662
Audio system:HD / HD Audio / HDA / High Definition Audio / Realtek ALC662
Compatible processor series:CORE I3 / 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 / Y / Yes
DisplayPorts quantity:1
DVI port:N / No / Yes
Ethernet LAN (RJ-45) ports:1
HDMI ports quantity:1
Headphone outputs:1 / 2 / 3
Line-in:Y / Yes
Line-out:No / Y / Yes
Microphone in:No / Y / Yes
Modem (RJ-11) ports:1
PS/2 ports quantity:2
S/PDIF out port: No
Serial ports quantity:1
SmartCard slot: No
USB 2.0 ports quantity:10 / 8
VGA (D-Sub) ports quantity:1


Power Supply:150 / 240 / 280 / 65
Power supply input frequency:50/60
Power supply input voltage:100 - 240


Bus type:DMI
Conflict Free processor:N / No
CPU multiplier (bus/core ratio):26 / 27 / 31 / 33 / 34
ECC supported by processor:N / No
FSB Parity:N / 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):17 / 21
Memory channels supported by processor:2 / Dual
Memory clock speeds supported by processor:1066 / 1066,1333
Memory types supported by processor:DDR3 1066/1333 / DDR3-SDRAM
Number of Processors Installed:1 / 2
PCI Express slots version:2.0
Processor boost frequency:3.4 / 3.8
Processor cache:1, 6 / 3 / 6 / 8
Processor cache level:L3
Processor cache type:L3 / Smart Cache / Smart Cache, L3 / SmartCache, L3
Processor codename:Sandy Bridge
Processor Cores:2 / 4
Processor family:2nd gen Intel® Core™ i3 / 2nd gen Intel® Core™ i5 / 2nd gen Intel® Core™ i7 / Intel Core i5-2xxx / Intel Core i7-2xxx / Intel® Pentium® Dual-Core
Processor frequency:2.5 / 2.6 / 2.7 / 3.1 / 3.3 / 3.4
Processor front side bus:1066 / 1333
Processor lithography:32
Processor Model:G620 / G630 / I3-2100 / i3-2120 / i3-2130 / i5-2400 / i5-2400S / i5-2500 / i7-2600
Processor operating modes:64-bit
Processor Series:Intel Core i3-2100 Desktop series / Intel Core i5-2400 Desktop series / Intel Core i5-2500 Desktop series / Intel Core i7-2600 Desktop series / Intel Pentium G600 series for Desktop
Processor Socket:LGA 1155 (Socket H2) / Socket H2 (LGA 1155)
Processor threads:2 / 4 / 8
Stepping:D2 / Q0
System bus rate:5
Tcase:69.1 / 72.6
Thermal Design Power (TDP):35, 65 / 65 / 95

Processor special features

Conflict Free processor:N
CPU configuration (max):1
Embedded options available:N / No / Y / Yes
Enhanced Intel SpeedStep Technology:Y / Yes
Execute Disable Bit:Y / Yes
Idle States:Y / Yes
Intel 64:Y / Yes
Intel AES New Instructions:No / Yes
Intel Anti-Theft Technology: No
Intel Clear Video HD Technology: Yes
Intel Clear Video Technology:N / No
Intel Clear Video Technology for MID: No
Intel Demand Based Switching:N / No
Intel Dual Display Capable Technology:Y / Yes
Intel Enhanced Halt State:Y / Yes
Intel Fast Memory Access:Y / Yes
Intel FDI Technology:Y / Yes
Intel Flex Memory Access:Y / 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:N / No
Intel Small Business Advantage (SBA): No
Intel Smart Connect Technology: No
Intel Smart Response Technology: No
Intel Trusted Execution Technology:N / No / Y / Yes
Intel Turbo Boost Technology:2.0 / No
Intel Virtualization Technology:VT-d, VT-x
Intel Virtualization Technology (VT-x):1 / Y / Yes
Intel Virtualization Technology for Directed I/O (VT-d):N / No / Y / Yes
Intel vPro Technology:No / Yes
Intel VT-x with Extended Page Tables (EPT):Y / Yes
Intel Wireless Display (WiDi) Technology: No
Intel® AES New Instructions (Intel® AES-NI):N / No / Y / Yes
Intel® Anti-Theft Technology (Intel® AT):N / No
Intel® Clear Video HD Technology (Intel® CVT HD):N / Y / Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID):N / No
Intel® Hyper Threading Technology (Intel® HT Technology):N / No / Y / Yes
Intel® Identity Protection Technology (Intel® IPT):No / Yes
Intel® Insider™:N / Y / Yes
Intel® InTru™ 3D Technology:N / Y
Intel® My WiFi Technology (Intel® MWT):N / No
Intel® Quick Sync Video Technology:N / Y / Yes
Intel® Rapid Start Technology: No
Intel® Small Business Advantage (Intel® SBA): No
Intel® Smart Response Technology: No
Intel® Turbo Boost Technology:2.0 / N / No
Intel® vPro™ Technology:N / No / Y / Yes
Intel® Wireless Display (Intel® WiDi):N / No
InTru™ 3D Technology:N / Y / Yes
Processor ARK ID:52207 / 52208 / 52209 / 52213 / 53426 / 53428 / 53480 / 53483 / I3-2100 / i3-2120 / i5-2400 / i5-2400S / i5-2500 / i7-2600
Processor code:SR00B / SR05R / SR05S / SR05W
Processor package size:37.5 / 37.5 x 37.5
Supported instruction sets:AVX / AVX, SSE4.1, SSE4.2 / AVX,SSE4.1,SSE4.2 / SSE4.1,SSE4.2
Thermal Monitoring Technologies:Y / Yes


Drivers included:Y
Operating System Architecture:32-bit / 64-bit
Operating system installed:Windows 7 Home Basic / Windows 7 Professional


Card reader integrated:N / No / Yes
Hard Drive Capacity:1 / 1000 / 250 / 320 / 500
Hard Drive Interface:SATA / Serial ATA / Serial ATA II / Serial ATA II, Serial ATA III / Serial ATA III
Hard Drive Size:3.5
Hard drive speed:7200
HDD Capacity:250 / 320 / 500
HDD interface:Serial ATA / Serial ATA II / Serial ATA III
HDD Size:3.5
HDD Speed:7200
Number of Hard Drives Installed:1 / 2
Number of HDDs installed:1
Number of storage drives installed:1
RAID Levels:0, 1
RAID support:Y / Yes
Storage Media:HDD
Total Storage Capacity:1000 / 250 / 320 / 500

Weight & Dimensions

Depth:23.8 / 23.9 / 238 / 27.5 / 33.7 / 36.7 / 36.9 / 369 / 44.2 / 442
Height :23.8 / 36.9 / 41.4 / 414 / 7.87 / 7.9 / 79 / 9.9 / 9.97 / 99.7
Weight:11 / 4.18 / 4.2 / 7.5
Width:17.5 / 175 / 25.6 / 27.5 / 275 / 33.7 / 337 / 7.9 / 9.9