R series ThinkPad

ThinkPad R series
Developer	IBM (2001–2005); Lenovo (2005–2010) ; (2018-present only for Chinese Markets)
Type	Mid-range Laptop, ; budget Laptop
Release date	October 2001; 23 years ago
Operating system	Microsoft Windows
Predecessor	ThinkPad 300 series
Successor	ThinkPad E series, ; ThinkPad L series, ; ThinkPad SL series

The ThinkPad R Series is a line of budget to mid-range laptop computers released as a successor to the ThinkPad 300 Series originally developed by IBM from 2001 until 2005 when they sold their consumer PC division to Lenovo in 2005. It was then developed by Lenovo from 2005 to 2010 it was discontinued in favor of having multiple different models for the different market segments that the R series originally occupied.

IBM originally released the Thinkpad R Series (Starting with the R30) as the mid-range mainstream model of the ThinkPad brand. It was conceived as a laptop "for the business executive working on a budget - a road warrior with an office network whose out-of-office work rarely goes beyond running PowerPoint shows or demonstrating spreadsheets".^[3] A laptop created as the T series but lower end, the R series computers had IBM make sacrifices in materials and construction (notably the lack of a magnesium roll cage and rubberized lid) which higher end models of ThinkPad like the T series had. This, along with lower performance configurations when compared to the T series.

Despite having a cheaper build when compared to the higher end T series of its time, it still received favorable reviews. In a review on the ThinkPad R40, CNET gave the laptop a score of 8.2,^[4] writing in their summary statement that "Good performance, along with great design and battery life, make the ThinkPad R40 a trusted friend for the traveler and the desk jockey"^[4]. Starting from the R50, it became completely based of the T series (instead of just looking similar) with the same concessions as before. Though the R series did include a Firewire port which was not brought to the T series until the ThinkPad T61.

In 2010, the R Series was discontinued in favor of the L, SL, and the E series of Thinkpads.

In 2018, it was brought back as a more premium version of the ThinkPad E Series in China only where it was just the E series with an aluminum lid.^[5]

Battery configuration

Main	M(x)	Main hot-swappable (max.cells)	Secondary	U	Ultrabay removable
	M(x)	Main hot-swappable (max.cells)		u	Ultrabay unremovable
	M(x)	Main removable (max.cells)		m(x)	internal (max.cells) "PowerBridge"
	m(x)	Main internal (max.cells)		S	Slice battery

Laptop color codes

Processor

Socketed desktop processor

Socketed mobile processor

Soldered high power processor

Soldered standard power processor

Soldered low power processor

Soldered ultra low power processor

Weight

0.9 kg (2.0 lb)	Up to 0.91 kg
1.0 kg (2.2 lb)	0.92–1.0 kg
1.1 kg (2.4 lb)	1.01–1.1 kg
1.2 kg (2.6 lb)	1.11–1.2 kg
1.3 kg (2.9 lb)	1.21–1.3 kg
1.4 kg (3.1 lb)	1.31–1.4 kg
1.5 kg (3.3 lb)	1.41–1.5 kg
1.6 kg (3.5 lb)	1.51–1.6 kg
1.7 kg (3.7 lb)	1.61–1.7 kg
1.8 kg (4.0 lb)	1.71–1.81 kg
1.9 kg (4.2 lb)	1.81–1.91 kg
2.0 kg (4.4 lb)	1.91–2.03 kg
2.1 kg (4.6 lb)	2.04–2.14 kg
2.3 kg (5.1 lb)	2.15–2.4 kg
2.5 kg (5.5 lb)	2.41–2.75 kg
2.8 kg (6.2 lb)	2.76–3.05 kg
3.1 kg (6.8 lb)	3.06–3.42 kg
3.5 kg (7.7 lb)	3.43–3.99 kg
4.0 kg (8.8 lb)	4.0–4.99 kg
5.5 kg (12 lb)	5.0–6.49 kg
7.2 kg (16 lb)	6.5–7.99 kg
9.1 kg (20 lb)	8.0–9.99 kg
10.7 kg (24 lb)	10–11.99 kg
12.7 kg (28 lb)	12–14.49 kg
14.5 kg (32 lb)	14.5–17.99 kg
18.1 kg (40 lb)	18–20.99 kg
21.7 kg (48 lb)	21–23.99 kg
24 kg (53 lb)	24–28.99 kg
29.5 kg (65 lb)	29 kg and above

Screen resolution

4K or higher

1440p+ (WQHD,QXGA)

1080p+ (Full HD,UXGA)

Better than 768p (SXGA,SXGA+)

600p+ (SVGA,HD,XGA,HD+)

Up to 600p (VGA)

Graphics

Dual standard socket graphics option

Dual proprietary socket graphics option

Standard socket graphics option

Proprietary socket graphics option

Soldered performance graphics option

Soldered midrange graphics option

Soldered mainstream graphics option

Soldered entry graphics option

Integrated entry graphics

Integrated basic graphics

Laptop storage combinations (excluding WWAN slot)

PCIe 4.0 x4	PCIe 3.0 x4	PCIe 3.0 x2	M.2 SATA	mSATA	1.8" SATA	2.5" SATA	1.8" IDE	2.5" IDE
2019 Not yet (laptops)	2013	2013	2013	2009	2003	2003	1991	1988
3						2
4
3						1
2						2
3					2
3
2						1
4
3					1
2					2
2
1						1
3
2					1
1
2
1					1
		2				1
						4
	1
		1				1
						3
		1
			1			1
				1		1
					1	1
						2
								3
					1
						1
								2
							1
								1

Laptop memory

Amount	LPDDR5X	LPDDR5	DDR5	LPDDR4X	LPDDR4	DDR4	LPDDR3	DDR4	DDR3L		DDR3		DDR2		DDR	SDR	EDO	FPM
						dual channel		< dual channel	dual channel	< dual channel	dual channel	< dual channel	dual channel	< dual channel
	2022 (laptops)	2019 (laptops)	2020	2017	2014	2014	2012	2014	2010		2007		2003		1998	1993	1993	1987
max memory = 512 GB	N/A	N/A	512 GB	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
max memory = 256 GB	N/A		256 GB (4 slots)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
max memory = 128 GB	128 GB		128 GB	N/A	N/A	128 GB (4 slots)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
64 GB ≤ max memory < 128 GB		64 GB		N/A	N/A	64 GB	N/A	64 GB (2 slots)	64 GB (4 slots)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
32 GB ≤ max memory < 64 GB				32 GB	32 GB	32 GB	N/A		32 GB	32 GB (2 slots)	32 GB (4 slots)	N/A	N/A	N/A	N/A	N/A	N/A	N/A
16 GB ≤ max memory < 32 GB						16 GB	16 GB		16 GB		16 GB	16 GB (2 slots)	16 GB (4 slots)	N/A	N/A	N/A	N/A	N/A
8 GB ≤ max memory < 16 GB						8 GB			8 GB		8 GB		8 GB	8 GB (2 slots)	8 GB (4 slots)	N/A	N/A	N/A
4 GB ≤ max memory < 8 GB						4 GB			4 GB		4 GB		4 GB		4 GB	4 GB (4 slots)	4 GB (4 slots)	N/A
2 GB ≤ max memory < 4 GB						2 GB (8 chips)			2 GB		2 GB		2 GB			2 GB	2 GB	N/A
1 GB ≤ max memory < 2 GB			1 GB (1 chip)	dual channel min	dual channel min	N/A		single channel min	1 GB		1 GB		1 GB					1 GB (4 slots)
512 MB ≤ max memory < 1 GB	N/A	N/A	N/A	single channel min	single channel min	N/A	dual channel min	half channel min	512 MB (8 chips)		512 MB (8 chips)		512 MB					512 MB
256 MB ≤ max memory < 512 MB	N/A	N/A	N/A	256 MB (1 chip)	256 MB (1 chip)	N/A	single channel min	256 MB (1 chip)	N/A	single channel min	N/A	single channel min	256 MB
128 MB ≤ max memory < 256 MB	N/A	N/A	N/A	N/A	N/A	N/A	128 MB (1 chip)	N/A	N/A	half channel min	N/A	half channel min
64 MB ≤ max memory < 128 MB	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	64 MB (1 chip)	N/A	64 MB (1 chip)
max memory < 64 MB	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A

T Series Based Models ^[6]

ThinkPad R series (2001-2010)
Case Size	Screen	Type	R3x			R4x	R5x			R6x		Rx00
4:3 screens												Only in 16:10
14.1"	13.3"	Mainstream	R30	R31	R32	R40	merged with 14" line
	13.3"	Economy				R40e	merged with 14" line
	14.1"	Mainstream	R30	R31	R32	R40	R50	R51	R52	R60	R61
		Performance					R50p
		In Between								R60i	16:10 only
		Economy				R40e	R50e	R51e		Only 15"
15"		Mainstream				R40	R50	R51	R52	R60	R61
		Performance					R50p
		In Between								R60i	R61i
		Economy					R50e	R51e		R60e
16:10 screens
14.1"		Mainstream									R61	R400
		In Between									R61i
		Education									R61u^[7]
15.4"		Mainstream									R61	R500
		In Between									R61i
		Economy									R61e
		Education									R61u^[7]

2001-2002 ^[8]

R30

The ThinkPad R30 came in 2 display options: an XGA 13.3" or 14.1". It was, along with the A30, the first ThinkPad to use the design features of a bevel on the left back corner of the laptop and exposed metal hinges, a feature that would be present on most subsequent ThinkPads released.

R31

The ThinkPad R31 came in 2 display options: an XGA 13.3" or 14.1" and is a minor internal hardware revision bringing socketed processors, a new chipset which meant a new CPU generation, and the IBM Embedded Security Subsystem to the R series.

R32

The ThinkPad R32 came in 2 display options: an XGA 13.3" or 14.1", but despite being named as a minor revision to the R3x generation, like most other IBM ThinkPads with their generations, the last model in this generation saw major revisions to the internals and some minor changes to the exterior. These revisions include: using Mobile Pentium 4-M CPUs instead of Mobile Pentium 3-M, Using DDR-266 RAM instead of PC-133 SDR RAM, and a reworked motherboard with rearranged components along with the addition of battery terminals for an UltraBay battery.

Model	Release (US)	Dimensions ^{(l, w, h)}	Weight ^(min)	CPU	Chipset	Memory ^(max)	Graphics	Storage	Networking	Screen	Battery	Other
R30 ^[9]	Oct 2001	313mm x 254mm x 36mm (12.3" x 10" x 1.4")	2.68 kg (5.9 lb)	Intel Mobile Celeron or Mobile Pentium 3 ^(Coppermine)	ALi CyberBLADE ALADDiN i1	1GB ^{(2x PC133 SDR SO-DIMM)}^[10]	Trident CyberBLADE ALADDiN i1 ^{(8MB shared)}	One Ultrabay Plus^[a], One 2.5" IDE	Intel 82550GY ^{10/100 Ethernet} Optional IBM High Rate Wireless LAN with Modem ^{in Mini-PCI slot} Optional Agere LU97 Scorpio ^{AC'97 modem card in CDC slot (exclusive)}	CCFL backlit 1024x768(XGA) TN TFT LCD for both 13.3" and 14.1"	M(8)^[b]^[c]	One White ThinkLight Supports ^{ThinkPad Port Replicator ThinkPad Port Replicator II ThinkPad Mini-Dock}
R31 ^[11]	Feb 2002	313mm x 254mm x 36mm (12.3" x 10" x 1.4")	2.77 kg (6.1 lb)	Intel Mobile Celeron or Mobile Pentium 3-M ^(Tutalin)	Intel 830MG	1GB ^{(2x PC133 SDR SO-DIMM)}^[10]	Intel Extreme Graphics ^{(32MB shared)}	One Ultrabay Plus^[a], One 2.5" IDE	Intel 82562ET ^{10/100 Ethernet} Optional IBM High Rate Wireless LAN with Modem ^{in Mini-PCI slot} Optional Agere LU97 Scorpio ^{AC'97 modem card in CDC slot (exclusive)}	CCFL backlit 1024x768(XGA) TN TFT LCD for both 13.3" and 14.1"	M(8)^[b]^[c]	One White ThinkLight Supports ^{ThinkPad Port Replicator ThinkPad Port Replicator II ThinkPad Mini-Dock}
R32 ^[12]	Jun 2002	313mm x 254mm x 38mm (12.3" x 10" x 1.5")	2.81 kg (6.2 lb)	Intel Mobile Celeron or Pentium 4-M ^(Northwood)	Intel 845MP	1GB ^{(2x DDR-266 SO-DIMM)}	ATI Mobility Radeon 7000^[d] ^(8/16MB)^[13]	One Ultrabay Plus^[a], One 2.5" IDE	Intel 82562ET ^{10/100 Ethernet} Optional IBM High Rate Wireless LAN with Modem I or II or Cisco Aironet Wireless 802.11b ^{in Mini-PCI slot} Optional Agere LU97 Scorpio ^{AC'97 modem card in CDC slot (exclusive)}	CCFL backlit 1024x768(XGA) TN TFT LCD for both 13.3" and 14.1"	M(6) U	One White ThinkLight Supports ^{ThinkPad Port Replicator ThinkPad Port Replicator II ThinkPad Mini-Dock}

2003 ^[7]^[8]

R40

The ThinkPad R40 came in 4 display options and 2 different body types: an XGA 13.3" or 14.1" in the 14" body type and either an XGA or an SXGA+ 15.0" in the 15" body type and was a sort of facelift to the previous R32, keeping the core design the same the (It looks more similar to the R32 than the R32 to the R31 from the bottom). This was the first R series ThinkPad to have the options for an UltraNav trackpad, a 15" display with a higher resolution 1400x1050 SXGA+ display panel, and Bluetooth. This was the first R series ThinkPad to have USB 2.0 and a hot-swappable UltraBay^[14] included.

R40e

The ThinkPad R40e came in 2 display options: an XGA 13.3" or 14.1" and was the budget version of the R40. With the budget status came the removal of the UltraBay (having a screwed in place optical drive), docking connector, the S-Video out port, 4 pin FireWire 400 port, and IrDA 1.1 port, and the second speaker. It was also unable to be optioned with Bluetooth, a 15" screen, Pentium M processors, or trackpad.

Model	Release (US)	Dimensions ^{(l, w, h)}	Weight ^(min)	CPU	Chipset	Memory ^(max)	Graphics	Storage	Networking	Screen	Battery	Other
R40(14")^[15]	Jan 2003	313mm x 254mm x 38mm (12.3" x 10" x 1.5")	2.81 kg (6.2 lb)	Intel or Mobile Celeron or Mobile Pentium 4-M ^(Northwood) or Pentium M ^(Banias)	Intel 855PM^[e] or 845MP	2GB ^{(2x DDR-266 SO-DIMM)}	ATI Mobility Radeon 7000 ^[d] ^(16MB) or 7500^[f] ^(32MB)	One UltraBay Plus, One 2.5" IDE	Intel 82562EZ ^{10/100 Ethernet} Agere LU97 Scorpio ^{AC'97 modem card in CDC slot} Optional 802.11b Wireless LAN Optional Bluetooth 1.1	CCFL backlit 1024x768(XGA) TN TFT LCD for both 13" and 14"	M(6) U	One White ThinkLight Option for Trackpad Supports ^{ThinkPad Port Replicator II ThinkPad Mini-Dock}
R40(15")^[15]	Jan 2003	330mm x 268mm x 41mm (13" x 10.6" x 1.6")	3.04 kg (6.7 lb)		Intel 855PM^[e] or 845MP	2GB ^{(2x DDR-266 SO-DIMM)}	ATI Mobility Radeon 7000 ^[d] ^(16MB) or 7500^[f] ^(32MB)	One UltraBay Plus, One 2.5" IDE		CCFL backlit 1024x768(XGA) or 1400x1050(SXGA+) TN TFT LCD	M(6) U
R40e^[16]	Mar 2003 ^[7]	313mm x 254mm x 39mm (12.3" x 10" x 1.5")	2.72 kg (6.0 lb)	Intel Mobile Celeron or Mobile Pentium 4-M ^(Northwood)	ATI RS200M	1GB ^{(2x DDR-266 SO-DIMM)}	ATI 330M IGP	One 2.5" IDE	Broadcom BCM5901 ^{10/100 Ethernet} Agere LU97 Scorpio ^{AC'97 modem card in CDC slot} Optional 802.11b Wireless LAN	CCFL backlit 1024x768(XGA) TN TFT LCD for both 13" and 14"	M(6)	One White ThinkLight

2003-2006 ^[7]^[8]

R50

With a new number in the middle also came with a new design. This time instead of coming up with a brand new design for the R series, the T series design had its magnesium roll cage removed, became thicker to maintain stiffness, and a few styling details were changed to create the new design of the R50. The R50 came in 3 display options: an XGA TN 14.1" or either a XGA TN or an SXGA+ IPS 15".

R50p

The R50p came in 2 display options: either a UXGA IPS or a QXGA IPS 15".

R50e

The R50e came in 2 display options: XGA TN 14.1" or 15".

R51

The R51 came in 3 display options: an XGA TN 14.1" or either a XGA TN or an SXGA+ IPS 15".

R51e

The R51e came in 2 display options: XGA TN 14.1" or 15".

R52 ^[g]

The R51 came in 3 display options: an XGA TN 14.1" or either a XGA TN or an SXGA+ TN 15".

Model	Release (US)	Dimensions ^(l,w,h)	Weight ^(min)	CPU	Chipset	Memory ^(max)	Graphics	Storage	Networking	Screen	Battery	Other
R50(14") ^[17]^[18]	Oct 2003	314mm x 260mm x 37mm (12.4" x 10.2" x 1.46")	2.6 kg (5.7 lb)	Intel Pentium M ^(Banias)	Intel 855PM	2GB ^{(2x DDR-333 SO-DIMM)}	ATI Mobility Radeon 7500 or 9000 ^32MB (both)	One UltraBay Enhanced One 2.5" IDE	Intel 82540EP ^Gigabit or 82562EZ ^{10/100 Ethernet} Agere LU97 Scorpio ^{AC'97 modem card in CDC slot with optional Bluetooth 1.1} Optional 802.11b or g ^{Wireless LAN in Mini PCI slot}	CCFL backlit 1024x768(XGA) TN TFT LCD	M(9) U	One Amber ThinkLight Option for Trackpad Supports ^{ThinkPad Port Replicator II ThinkPad Mini-Dock Thinkpad Dock II}
R50(15") ^[17]^[18]	Oct 2003	332mm x 269mm x 40mm (13.1" x 10.6" x 1.58")	3.0 kg (6.6 lb)	Intel Pentium M ^(Banias)	Intel 855PM	2GB ^{(2x DDR-333 SO-DIMM)}	ATI Mobility Radeon 7500 or 9000 ^32MB (both)	One UltraBay Enhanced One 2.5" IDE		CCFL backlit 1024x768(XGA) TN or 1400x1050(SXGA+) IPS TFT LCD	M(9) U
R50p
R50e (14")
R50e (15")
R51 (14")
R51 (15")
R51e (14")
R51e (15")
R52 (14")
R52 (15")

2006-2008 ^[7]

R60

The R60 came in 4 display options: either a XGA or an SXGA+ TN panel for both 14.1 and 15".

R60i

The R60i came in 4 display options: either a XGA or an SXGA+ TN panel for both 14.1 and 15".

R60e

The R60e came in 1 display option: a XGA TN 15".

R61 ^[19]

The ThinkPad's shift from 4:3 to the wider aspect ratio of 16:10 had started the year 2005 right after Lenovo had acquired the Thinkpad brand with the Z Series and was continued in 2006 with the widescreen versions of the T60. Although the R60 never had any widescreen options, starting with the R61, the R series, too would transition to 16:10. So The R61 came in 8 (maybe 6)^[h] display options: an XGA or SXGA+ 14.1" or 15" 4:3, a WXGA 14.1" or 15.4" 16:10, a WXGA+ 14.1" 16:10, or a WSXGA+ 15.4" 16:10.

R61i ^[20]^[21]

The R61i came in 7 display options: an XGA or SXGA+ TN 15", a WXGA TN in either 14.1" or 15.4" with both also able to be glossy, and a WXGA+ TN 14.1".

R61e

The R61e came in 1 display option: an WXGA TN 15.4".

R61u

The R61u came in 4 display options: a WXGA TN 14.1" or 15.4", a WXGA+ TN 14.1", or a WSXGA+ TN 15.4". Contrary to its name, it is not a slimmer version of the R61 but instead was just the same computer but only available for schools.

2008-2010 ^[7]

R400

The R400 came in 2 display options: either a WXGA or a WXGA+ TN 14.1".

R500

The R500 came in 2 display options: either a WXGA or a WSXGA+ TN 15.4".

2010-2018

The R series was then discontinued and had a 8 year hiatus until 2018 when it was brought back only in China as a more premium E480.

2018-Present

The R series continued to quietly release alongside the E series to the present ^[2].

Notes

^ ^a ^b ^c Ultrabay does not support hot or warmswapping
^ ^a ^b 8 cell option is an 8 cell NiMH battery
^ ^a ^b Ultrabay does not have battery terminals
^ ^a ^b In IBM Hardware Maintenance Manuals, the ATI Mobility Radeon 7000 is called the M6
^ Only R40s optioned with a Pentium M processor had the 855PM Chipset
^ In IBM Hardware Maintenance Manuals, the ATI Mobility Radeon 7500 is called the M7
^ There is no such thing as an "R52e" one look at the IBM or Lenovo Product Specifications Reference book can show that
^ Although on Lenovo's website it says that there was 2 different options for 14.1" 4:3, on the same page, it never lists the dimensions of that 14.1" 4:3

References

^ "E480 and R480 User Guide" (PDF). lenovo.com. Retrieved 7 November 2024.
^ ^a ^b "Thinkpad R14 Gen 6、Thinkpad E14 Gen 6 和 Thinkpad E16 Gen 2 intel平台设置指南" (in Chinese). lenovo.com.cn. Retrieved 7 November 2024.
^ Kapica, Jack. "IBM ThinkPad R31". The Globe and Mail. Retrieved 8 November 2024.
^ ^a ^b "ThinkPad R review: ThinkPad R". CNET. Retrieved 8 November 2024.
^ "R Series". ThinkWiki. Retrieved 8 November 2024.
^ "Thinkpad History". ThinkWiki. Retrieved 8 November 2024.
^ ^a ^b ^c ^d ^e ^f ^g "Product Specifications Reference Lenovo® ThinkPad® Notebooks 2005 to 2013 - withdrawn" (PDF). psref.lenovo.com. Retrieved 9 November 2024.
^ ^a ^b ^c "Personal Systems Reference IBM ThinkPad R Series 2001 to 2005 - withdrawn" (PDF). infania.net. Retrieved 9 November 2024.
^ "Category: R30". Thinkwiki. Retrieved 8 November 2024.
^ ^a ^b "ThinkPad R30/R31 Hardware Maintenance Manual" (PDF). thinkpads.com. Retrieved 9 November 2024.
^ "Category: R31". Thinkwiki. Retrieved 8 November 2024.
^ "Category:R32". Thinkwiki. Retrieved 8 November 2024.
^ "ThinkPad R32 Hardware Maintenance Manual" (PDF). thinkpads.com. Retrieved 9 November 2024.
^ "Ultrabay". ThinkWiki. Retrieved 10 November 2024.
^ ^a ^b "Category:R40". ThinkWiki. Retrieved 10 November 2024.
^ "Category:R40e". ThinkWiki. Retrieved 10 November 2024.
^ ^a ^b "ThinkPad Computer Hardware Maintenance Manual" (PDF). thinkpads.com. Retrieved 13 November 2024.
^ ^a ^b "Category: R50". Thinkwiki. Retrieved 13 November 2024.
^ "Detailed specifications - ThinkPad R61". support.enovo.com. Lenovo. Retrieved 12 November 2024.
^ "ThinkPad® R60, R60e, R61, and R61i Hardware Maintenance Manual" (PDF). thinkpads.com. Retrieved 12 November 2024.
^ "Category:R61i". thinkwiki.org. Retrieved 12 November 2024.

[No_HS_or_WS-11] Ultrabay does not support hot or warmswapping

[NiMH_Dumb_Battery-12] 8 cell option is an 8 cell NiMH battery

[NoUltraBat-13] Ultrabay does not have battery terminals

[HMM_name_difference_Radeon_7000-16] In IBM Hardware Maintenance Manuals, the ATI Mobility Radeon 7000 is called the M6

[Only_Pentium_M-20] Only R40s optioned with a Pentium M processor had the 855PM Chipset

[HMM_name_difference_Radeon_7500-21] In IBM Hardware Maintenance Manuals, the ATI Mobility Radeon 7500 is called the M7

[No_R52e-23] There is no such thing as an "R52e" one look at the IBM or Lenovo Product Specifications Reference book can show that

[Unclear_for_14.1"_4:3_option-27] Although on Lenovo's website it says that there was 2 different options for 14.1" 4:3, on the same page, it never lists the dimensions of that 14.1" 4:3

[1] "E480 and R480 User Guide" (PDF). lenovo.com. Retrieved 7 November 2024.

[Gen_6_R_series_proof-2] "Thinkpad R14 Gen 6、Thinkpad E14 Gen 6 和 Thinkpad E16 Gen 2 intel平台设置指南" (in Chinese). lenovo.com.cn. Retrieved 7 November 2024.

[3] Kapica, Jack. "IBM ThinkPad R31". The Globe and Mail. Retrieved 8 November 2024.

[ThinkPad_R40_Review-4] "ThinkPad R review: ThinkPad R". CNET. Retrieved 8 November 2024.

[5] "R Series". ThinkWiki. Retrieved 8 November 2024.

[6] "Thinkpad History". ThinkWiki. Retrieved 8 November 2024.

[ThinkWdBook-7] ^ ^a ^b ^c ^d ^e ^f ^g "Product Specifications Reference Lenovo® ThinkPad® Notebooks 2005 to 2013 - withdrawn" (PDF). psref.lenovo.com. Retrieved 9 November 2024.

[IBM_R_Info-8] "Personal Systems Reference IBM ThinkPad R Series 2001 to 2005 - withdrawn" (PDF). infania.net. Retrieved 9 November 2024.

[ThinkWikiR30-9] "Category: R30". Thinkwiki. Retrieved 8 November 2024.

[R30/31_hmm-10] "ThinkPad R30/R31 Hardware Maintenance Manual" (PDF). thinkpads.com. Retrieved 9 November 2024.

[ThinkWikiR31-14] "Category: R31". Thinkwiki. Retrieved 8 November 2024.

[ThinkWikiR32-15] "Category:R32". Thinkwiki. Retrieved 8 November 2024.

[R32_hmm-17] "ThinkPad R32 Hardware Maintenance Manual" (PDF). thinkpads.com. Retrieved 9 November 2024.

[Ultrabay-18] "Ultrabay". ThinkWiki. Retrieved 10 November 2024.

[ThinkWikiR40-19] "Category:R40". ThinkWiki. Retrieved 10 November 2024.

[ThinkWikiR40e-22] "Category:R40e". ThinkWiki. Retrieved 10 November 2024.

[R50/p/51_hmm-24] "ThinkPad Computer Hardware Maintenance Manual" (PDF). thinkpads.com. Retrieved 13 November 2024.

[ThinkWikiR50-25] "Category: R50". Thinkwiki. Retrieved 13 November 2024.

[Lenovo_R61_Specs-26] "Detailed specifications - ThinkPad R61". support.enovo.com. Lenovo. Retrieved 12 November 2024.

[R6x_Standard_Screen_HMM-28] "ThinkPad® R60, R60e, R61, and R61i Hardware Maintenance Manual" (PDF). thinkpads.com. Retrieved 12 November 2024.

[ThinkWiki_R61i-29] "Category:R61i". thinkwiki.org. Retrieved 12 November 2024.

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Developer	IBM (2001–2005) Lenovo (2005–2010) (2018^[1]-present^[2] only for Chinese Markets)
Type	Mid-range Laptop, budget Laptop
Release date	October 2001; 23 years ago (2001-10)
Operating system	Microsoft Windows
Predecessor	ThinkPad 300 series
Successor	ThinkPad E series, ThinkPad L series, ThinkPad SL series