Lenovo Support & downloads - Memory Compatibility

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Memory Compatibility - Notebooks

Applicable countries and regions

Worldwide Option Marketing Part Numbers:

The following worldwide option marketing part numbers are orderable via: www.lenovo.com

For information on options, accessories, including Accessories Guide and the Option Compatibility Matrix, please visit: www.lenovo.com/accessoriesguide

For comprehensive information on features and technical specifications of Lenovo products, go to: Personal Systems Reference (PSREF)

For information on troubleshooting ThinkPad memory issues, go to: Troubleshooting Memory Issues - ThinkPad

PC3-8500 DDR3-1066 SODIMM Memory	Individual / Single-Pack Option Marketing Part Number	25-Pack Option Marketing Part Number	Field Replacement Unit (FRU) Service Part Number
1GB PC3-8500 Low-Halogen	55Y3706 (replaces 43R1987)	57Y4385 (replaces 51J0551)	55Y3712 (replaces 43R1989)
2GB PC3-8500 Low-Halogen	55Y3707 (replaces 43R1988)	57Y4386 (replaces 51J0552)	55Y3713 (replaces 43R1969)
4GB PC3-8500 Low-Halogen	55Y3708 (replaces 51J0493)	- - - - - - - -	55Y3714 (replaces 51J0494)

1GB PC3-8500	43R1987 (Discontinued, withdrawn from marketing - July 2009)	51J0551 (Discontinued, withdrawn from marketing - July 2009)	43R1989
2GB PC3-8500	43R1988 (Discontinued, withdrawn from marketing - July 2009)	51J0552 (Discontinued, withdrawn from marketing - July 2009)	43R1969
4GB PC3-8500	51J0493 (Discontinued, withdrawn from marketing - July 2009)	- - - - - - - -	51J0494
PC2-5300 DDR2-667 SODIMM Memory	Customer Orderable Option Part Number		Field Replacement Unit (FRU) Service Part Number
2GB PC2-5300	40Y7735	51J0548	40Y8404
1GB PC2-5300	40Y7734	51J0502	40Y8403
512MB PC2-5300	40Y7733 (Discontinued, withdrawn from marketing - April 2009)	- - - - - - - -	40Y8402
PC2700 DDR-333 SODIMM	Option Marketing Part Number
1GB PC2700	31P9834 (Discontinued, withdrawn from marketing - June 2009)	- - - - - - - -	31P9835
512MB PC2700	31P9832 (Discontinued, withdrawn from marketing - April 2009)	- - - - - - - -	31P9833

If Lenovo does not offer memory that is compatible for your system, consider Lenovo Option Continuation Program at: www.lenovo.com/optionscontinuationprogram

Physical specifications

Individual/Single-Pack Unpackaged Memory (memory module only) Approximate height: 4 mm (0.2 in) Approximate depth: 32 mm (1.3 in) Approximate width: 68 mm (2.7 in) Approximate weight: 0.1 kg (0.2 lb) Individual/Single-Pack Packaged Memory (memory module and carton) Approximate height: 28 mm (1.1 in) Approximate depth: 65 mm (2.6 in) Approximate width: 180 mm (7.1 in) Approximate weight: 0.15 kg (0.3 lb) 25-Pack Packaged Memory (25 memory modules and carton) Approximate height: 51 mm (2.0 in) Approximate depth: 165mm (6.5 in) Approximate width: 264 mm (10.4 in) Approximate weight: 1.7 kg (3.7 lb)

Memory configuration and compatibility

	A Series ThinkPads		W Series ThinkPads
	G Series ThinkPads		X Series ThinkPads
	R Series ThinkPads		Z Series ThinkPads
	SL Series ThinkPads		Lenovo Notebooks
	T Series ThinkPads		IdeaPad Notebooks
			Older ThinkPad systems

Current ThinkPad systems
ThinkPad system	Memory description	Memory speed	Maximum memory size
A20m, A20p, A21m, A21p, A22e (Pentium), A22m, A22p	PC100 SDRAM 144-pin non-parity SoDIMM	100MHz	512MB
A21e (2655), A22e (Celeron)	PC100 SDRAM 144-pin non-parity SoDIMM	100MHz	256MB
A21e (2628)	PC100 SDRAM 144-pin non-parity SoDIMM	100MHz	256MB
A30, A30p	PC133 SDRAM 144-pin non-parity SoDIMM	133MHz	1GB
A31, A31p	PC2100 DDR SDRAM 200-pin non-parity SoDIMM (*)	266MHz	1GB

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ThinkPad system	Memory description	Memory speed	Maximum memory size
G40	PC2100 DDR SDRAM 200-pin non-parity SoDIMM (*)	266MHz	1GB
G41	PC2700 DDR SDRAM 200-pin non-parity SoDIMM	333MHz	1GB

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ThinkPad system	Memory description	Memory speed	Maximum memory size
R30, R31	PC133 SDRAM 144-pin non-parity SoDIMM	133MHz	1GB
R32	PC2100 DDR SDRAM 200-pin non-parity SoDIMM (*)	266MHz	1GB
R40(Pentium 4 and Celeron models), R40e	PC2100 DDR SDRAM 200-pin non-parity SoDIMM (*)	266MHz	1GB
R40 (Pentium M models)	PC2100 DDR SDRAM 200-pin non-parity SoDIMM (*)	266MHz	2GB
R50e	PC2700 DDR SDRAM 200-pin non-parity SoDIMM	333MHz	2GB
R50, R50p	PC2700 DDR SDRAM 200-pin non-parity SoDIMM Note: PC2100 is supported at 266MHz	333MHz	2GB
R51	PC2700 DDR SDRAM 200-pin non-parity SoDIMM	333MHz	2GB
R52	PC2-4200 CL4 SDRAM 200-pin non-parity SoDIMM	533MHz	2GB
R60, R60e	PC2-5300 CL5 DDR2 SDRAM 200-pin non-parity SoDIMM	667MHz	3GB
R61	PC2-5300 DDR2 SDRAM SO DIMM memory	667 MHz	4GB (**)
R400	PC3-8500 DDR3 SDRAM SODIMM Memory	1066 MHz	4GB
R500	PC3-8500 DDR3 SDRAM SODIMM Memory	1066 MHz	4GB

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ThinkPad system	Memory description	Memory speed	Maximum memory size
SL300	PC2-5300 DDR2 SDRAM SO DIMM memory	667 MHz	4GB
SL400	PC2-5300 DDR2 SDRAM SO DIMM memory	667 MHz	4GB
SL500	PC2-5300 DDR2 SDRAM SO DIMM memory	667 MHz	4GB

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ThinkPad system	Memory description	Memory speed	Maximum memory size
T20, T21, T22	PC100 SDRAM 144-pin non-parity SoDIMM	100MHz	512MB
T23	PC133 SDRAM 144-pin non-parity SoDIMM	133MHz	1GB
T30	PC2100 DDR SDRAM 200-pin non-parity SoDIMM (*)	266MHz	1GB
T40, T40p	PC2100 DDR SDRAM 200-pin non-parity SoDIMM (*)	266MHz	2GB
T41, T41p, T42, T42p	PC2700 DDR SDRAM 200-pin non-parity SoDIMM Note: PC2100 is supported at 266MHz (*)	333MHz	2GB
T43, T43p	PC2-4200 CL4 SDRAM 200-pin non-parity SoDIMM	533MHz	2GB
T60, T60p	PC2-5300 CL5 DDR2 SDRAM 200-pin non-parity SoDIMM	667MHz	4GB (**)
T61	PC2-5300 DDR2 SDRAM SO DIMM memory	667 MHz	4GB (**)
T400, T400s	PC3-8500 DDR3 SDRAM SODIMM Memory	1066 Mhz	8GB
T500	PC3-8500 DDR3 SDRAM SODIMM Memory	1066 Mhz	8GB

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ThinkPad system	Memory description	Memory speed	Maximum memory size
W500	PC3-8500 DDR3 SDRAM SODIMM Memory	1066 Mhz	8GB
W700, W700ds	PC3-8500 DDR3 SDRAM SODIMM Memory	1066 Mhz	8GB

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ThinkPad system	Memory description	Memory speed	Maximum memory size
X20, X21	PC100 SDRAM 144-pin non-parity SoDIMM	100MHz	320MB
X22, X23, X24	PC133 SDRAM 144-pin non-parity SoDIMM	133MHz	640MB
X30	PC133 SDRAM 144-pin non-parity SoDIMM	133MHz	1GB
X31	PC2100 DDR SDRAM 200-pin non-parity SoDIMM (*)	266MHz	1GB
X32	PC2100 or PC2700 DDR SDRAM 200-pin non-parity SoDIMM	266MHz	2GB
X40	PC2700 DDR SDRAM 200-pin non-parity SoDIMM Note: PC2100 is supported at 266MHz (*)	333MHz	1280MB
X41	PC2-4200 CL4 SDRAM 200-pin non-parity SoDIMM	533MHz	1.5GB
X41 Tablet	PC2-4200 CL4 SDRAM 200-pin non-parity SoDIMM	533MHz	1.5GB
X60, X60s	PC2-5300 CL5 DDR2 SDRAM 200-pin non-parity SoDIMM	667MHz	2GB
X61, X61s	PC2-5300 CL5 DDR2 SDRAM 200-pin non-parity SoDIMM	667MHz	4GB (**)
X60 Tablet	PC2-5300 CL5 DDR2 SDRAM 200-pin non-parity SoDIMM	667MHz	4GB (**)
X61 Tablet	PC2-5300 CL5 DDR2 SDRAM 200-pin non-parity SoDIMM	667MHz	4GB (**)
X200, X200s	PC3-8500 DDR3 SDRAM SODIMM Memory	1066 Mhz	4GB
X200 Tablet	PC3-8500 DDR3 SDRAM SODIMM Memory	1066 Mhz	4GB
X300	PC2-5300 CL5 DDR2 SDRAM 200-pin non-parity SoDIMM	667MHz
X301	PC3-8500 DDR3 SDRAM SODIMM Memory	1066 Mhz

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ThinkPad system	Memory description	Memory speed	Maximum memory size
Z60m, Z60t	PC2-4200 CL4 SDRAM 200-pin non-parity SoDIMM	533MHz	2GB
Z61e, Z61m, Z61p, Z61t	PC2-5300 CL5 DDR2 SDRAM 200-pin non-parity SoDIMM	667MHz	3GB

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Lenovo Notebooks Notebooks
Lenovo Notebooks	Memory description	Memory speed	Maximum memory size
3000 C100	PC2-4200 CL4 SDRAM 200-pin non-parity SoDIMM	533 MHz	2GB
3000 C200	PC2-5300 CL5 DDR2 SDRAM200-pin non-parity SoDIMM	667MHz	2GB
G500	PC2-5300 CL5 DDR2 SDRAM 200-pin non-parity SoDIMM	667MHz	4GB (**)
3000 N100	PC2-5300 CL5 DDR2 SDRAM 200-pin non-parity SoDIMM	667MHz	2GB
3000 N200	PC2-5300 CL5 DDR2 SDRAM 200-pin non-parity SoDIMM	667MHz	4GB (**)
3000 N500	PC2-5300 CL5 DDR2 SDRAM 200-pin non-parity SoDIMM	667MHz	4GB (**)
3000 V100	PC2-5300 CL5 DDR2 SDRAM 200-pin non-parity SoDIMM	667MHz	2GB
3000 V200	PC2-5300 CL5 DDR2 SDRAM 200-pin non-parity SoDIMM	667MHz	4GB (**)

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IdeaPad Notebooks
IdeaPadsystem	Memory description	Memory speed	Maximum memory size
S9, S9e, S10, S10e	PC2-5300 CL5 DDR2 SDRAM 200-pin non-parity SoDIMM	667MHz	1.5GB

Notes:

(*) PC2100 memory option parts are no longer available. Please substitute the corresponding PC2700 memory option parts.
(**) Windows Vista supports up to 4GB maximum memory (32-bit versions of Windows Vista cannot support 4GB). Windows XP supports up to 3GB maximum memory

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Older ThinkPad systems
ThinkPad system	Memory description	Memory speed	Maximum memory size
i Series 1200, 1300	PC100 SDRAM 144-pin non-parity SoDIMM	100MHz	192MB
390, 390E	SDRAM 144-pin non-parity SoDIMM	66MHz	256MB
390X	PC100 SDRAM 144-pin non-parity SoDIMM	100MHz	512MB
570	SDRAM 144-pin non-parity SoDIMM	66MHz	192MB
570E	PC100 SDRAM 144-pin non-parity SoDIMM	100MHz	320MB
600, 600E	SDRAM 144-pin non-parity SoDIMM	66MHz	288MB
600X	PC100 SDRAM 144-pin non-parity SoDIMM	100MHz	576MB
770, 770E, 770ED	SDRAM 144-pin non-parity SoDIMM	66MHz	288MB
770X, 770Z	SDRAM 144-pin non-parity SoDIMM	66MHz	320MB