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IBM ThinkPad R51

alaTest has collected and analyzed 51 reviews of IBM ThinkPad R51. The average rating for this product is 4.3/5, compared to an average rating of 4.1/5 for other Laptops for all reviews. People really like the keyboard and durability. The portability and price also get good comments, but there are mixed views on the connectivity and screen. The energy efficiency and image quality get less positive opinions.

performance, price, portability, durability, keyboard

sound, image quality, energy

We analyzed user and expert ratings, product age and more factors. Compared to other Laptops the IBM ThinkPad R51 is awarded an overall alaScore™ of 77/100 = Good quality.

Review analysis

(Based on 51 reviews)

Expert Reviews  

User Reviews  

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Showing 1 - 14 of 24 Show Reviews: in English | in other languages (27)

Consumer review by: ( review summary for IBM ThinkPad R51


alaTest has collected and analyzed 4 user reviews of IBM ThinkPad R51 from The average user rating for this product is 3.5/5, compared to an average user rating of 3.9/5 for other Laptops on People really like the portability and usability. The price and performance are also appreciated. There are some mixed opinions about the screen, while there are some critical comments about the image quality.

durability, performance, price, usability, portability

image quality

75% of the reviews on give this product a positive rating.

This summary is based on the products: Lenovo ThinkPad T42 2373 - Pentium M 745 / 1.8 GHz - RAM 512 MB - HDD 80 GB - DVD-R - Mobility Radeon 9600 - Gigabit Ethernet - WLAN : 802.11a/b/g - WLenovo ThinkPad T42 2373 - Pentium M 745 / 1.8 GHz - RAM 512 MB - HDD 80 GB - DVD-R - Mobility Radeon 9600 - Gigabit Ethernet - WLAN : 802.11a/b/g - W

May, 2017

Expert review by: Carla Thornton (

IBM Thinkpad R51 Notebook


It doesn't have a hip new wide screen, a six-in-one media card reader, or a built-in DVD burner. But if you're looking for a terrific deal on a mainstream notebook, the IBM ThinkPad R51 delivers. The excellent keyboard, expandable design, long battery...

We have just a couple of minor complaints: The set of mouse buttons provided for the touchpad sit a tad too close to the front of the notebook. We were able to press them most of the time, but occasionally we instead thwacked the edge of the case with...

Jul, 2004

Expert review by: Xiao Ming Wu (

ThinkPad T42 review: ThinkPad T42


Great value; excellent performance; bulletproof IBM design; Gigabit Ethernet; long battery life; great service and support.

Lacks FireWire; no flash media slot.

The ThinkPad T42 is a good choice for business professionals looking for a top-notch laptop at a reasonable price.

May, 2004

Expert review by: (

IBM Thinkpad R51


IBM is known for making reliable business-class notebooks with outstanding construction and keyboards. (The company tends to shy away from multimedia features.) The R51 fits this description, though its lackluster performance and battery life will...

Great keyboard. Good management utilities

Not for multimedia purposes. Poor performer

If you're looking for a business laptop, this is it. Otherwise, your multimedia needs are best satisfied with the Compaq Presario R3000Z or the HP Pavilion dv1000.

Expert review by: (



IBM had affordability without compromise in mind when creating the IBM R-Series. In order to appeal to the active business/student world where people live on the move, they needed a powerful, affordable, and durable laptop - and of course, without...

Expert review by: Good Gear (

Expert Review


The T42's integrated fingerprint reader requires some patience, but rewards with increased security. This notebook remains a top pick for business travellers.

No need for passwords, tighter security than older fingerprint scanners

Fingerprint sliding mechanism is time consuming, modest connectivity, excellent battery life

Nov, 2006

Expert review by: Stephanie Bruzzese (

ThinkPad R51


Check out the basic ThinkPad R51 if you're low on cash, but think twice before loading up on expensive options.

Fast mobile performance ; Big, 15-inch screen ; Wide, comfortable keyboard ; 802.11b/g wireless

High-end models are expensive ; Lacks a handy Windows key

Battery Life Although the IBM ThinkPad R51 came in last place in battery life in CNET Labs' tests, the difference between being first and last is only six minutes. With its 10.8V, 4,400mAh (48WHr) battery the IBM ThinkPad R51 was able to achieve more...

Aug, 2004

Expert review by: Stefanie Bruzzese (

IBM ThinkPad R51


Check out the basic IBM ThinkPad R51 if you're low on cash, but think twice before loading up on expensive options.

Aug, 2004

Consumer review by: N/A (



This is one of the sharpest best designed Lap Tops I have ever seen. IBM has done it again. They are the master of the lap top and this is no exception. The 15" monitor is crisp and bright. I originally purchased this unit for my company on an expense...

Dec, 2004

Consumer review by: N/A (

IBM ThinkPad R51 1836BDU NoteBook Intel Pentium M 1.50GHz 15.0" SXGA+ 256MB Memory DDR333 40GB HDD DVD/CD-RW Combo ATI Mobility Radeon 7500


great overall computer. very good looking and well performing laptop. lcd is very very nice. would buy another just like it. the usuall from ibm as in you rarely find complaints about them.

Oct, 2004

Consumer review by: mmy (

IBM ThinkPad R51 1836BDU NoteBook Intel Pentium M 1.50GHz 15.0" SXGA+ 256MB Memory DDR333 40GB HDD DVD/CD-RW Combo ATI Mobility Radeon 7500


Great computer, one of few with the sxga+ screen. Highly reccommended.

Sep, 2004

Product Specifications

IBM ThinkPad R Series notebooks offer mainstream performance and features for frequently mobile users who want easy, ready-to-run computing. These affordable notebooks offer lightweight designs with great performance, outstanding battery life on select models and large, bright displays. The ThinkPad R51 mobile workstation provides high-performance graphics for displaying detailed designs, dramatic demos and high-powered presentations. The ThinkPad family also features exclusive IBM ThinkVantage Technologies and ThinkVantage design. Together, they deliver business advantage by helping to save time and money and enabling you to focus on your business - not your technology.

Audio Input


Audio Output

Type:Sound card


Run Time (Up To):3.5hour(s)/4.7hour(s)/4hour(s)
Technology:Lithium ion

Cache Memory

Installed Size:1MB/2MB/512KB


Front Camera: No

Dimensions & Weight



HD type: No

Display (Projector)

Color Support:24-bit (16.7 million colors)
Color Support:24-bit (16.7 million colors)
Diagonal Size:14.1in/15in
Diagonal Size (metric):35.8cm/38.1cm
Max Resolution:1024 x 768/1400 x 1050
Technology:TFT active matrix
Widescreen Display: No

Environmental Standards

ENERGY STAR Qualified: Yes
EPA Energy Star Compliant: Yes


Discrete graphics adapter: Yes
Maximum graphics adapter memory:0.032 / 0.064 / 0.128


Country Kits:Australia / New Zealand/Canada/Germany/United Kingdom/United States
Packaged Quantity:1
Product Line:Lenovo ThinkPad R51/ThinkPad R51

Input Device

Type:Keyboard / TrackPoint / UltraNav/Keyboard / TrackPoint / UltraNav/Keyboard / UltraNav/Light gun / TrackPoint / UltraNav


Data Bus Speed:400MHz


Color:Black/Business black
Manufacturer Selling Program:TopSeller


Max Transfer Rate:56Kbps
Protocols & Specifications:ITU V.90/ITU V.90 / k56Flex/ITU V.92/ITU V.92 / k56Flex
Type:Fax / modem


Data Link Protocol:Bluetooth / Ethernet / Fast Ethernet / Gigabit Ethernet / IEEE 802.11b / IEEE 802.11g/Ethernet / Fast Ethernet/Ethernet / Fast Ethernet / Gigabit Ethernet / IEEE 802.11b / IEEE 802.11g/Ethernet / Fast Ethernet/Ethernet / Fast Ethernet / Gigabit Ethernet/Ethernet / Fast Ethernet / Gigabit Ethernet / IEEE 802.11a / IEEE 802.11b / IEEE 802.11g/Ethernet / Fast Ethernet / Gigabit Ethernet / IEEE 802.11b/Ethernet / Fast Ethernet / Gigabit Ethernet / IEEE 802.11b / IEEE 802.11g/Ethernet / Fast Ethernet / IEEE 802.11b/Ethernet / Fast Ethernet / IEEE 802.11b / IEEE 802.11g
Type:Network adapter
Wireless LAN Supported: Yes
Wireless Protocol:802.11a/b/g/802.11b/802.11b/g/802.11b/g / Bluetooth

Optical Storage

Read Speed:24x/24x (CD) / 8x (DVD)/8x
Rewrite Speed:10x/24x
Write Speed:16x/24x

OS Provided

Type:Microsoft Windows XP Home Edition/Microsoft Windows XP Professional


Clock Speed:1.3GHz/1.4GHz/1.5GHz/1.6GHz/1.7GHz
Conflict Free processor: No
ECC supported by processor: No
Processor cache type:L2
Processor codename:Dothan
Processor Number:725/735
Processor Series:Intel Pentium M 700 series
Thermal Design Power (TDP):21
Type:Celeron/Celeron M/Pentium M

Processor special features

Intel 64: No
Intel Clear Video Technology: No
Intel Virtualization Technology for Directed I/O (VT-d): No
Processor ARK ID:27591
Processor package size:35


Installed Size:128MB/1GB/256MB/512MB
Max Supported Size:2GB
Technology:DDR SDRAM

Service & Support

Type:1 year warranty /3 years warranty /4 years warranty

Storage Controller


Storage Floppy Drive

Type: None

Storage Hard Drive


Storage Removable

Type: None


Hard Drive(-s) Total Capacity:0GB/20GB/30GB/40GB/60GB/80GB
Notebook Type:Notebook
Platform Technology:Intel Centrino

Video Memory

Installed Size:32MB

Video Output

Graphics Processor / Vendor:ATI Mobility Radeon 7500/ATI Mobility Radeon 9000/Intel Extreme Graphics 2