PC2-5300

PC2-5300 This is DDR2 (Double Data Rate) memory in 200-pin SO-DIMM form-factor. PC2-5300 memory is also called DDR2-667

Available memory types from Lenovo

Partnumber	FRU	Description
40Y7732	40Y8401	256MB PC2-5300 DDR2 CL5 SO-DIMM
40Y7733	40Y8402	512MB PC2-5300 DDR2 CL5 SO-DIMM
40Y7734	40Y8403	1GB PC2-5300 DDR2 CL5 SO-DIMM

ThinkPads that support this technology

ThinkPad Models	Soldered On Systemboard	DIMM Slot 1	DIMM Slot 2	Official Max-Memory	Unofficial Max-Memory1
T60, T60p		Occupied	Empty	4GB2	Unknown
R60e		Occupied	Empty	4GB2	Unknown
X60, X60s		Occupied	Empty	2GB3	Unknown

FOOTNOTES [Δ]

1. See Unofficial maximum memory specs
2. Based on 2x 2GB DIMMs, which presumably will become available in the future
3. Based on 2x 1GB DIMMs, might require removal of original base memory

Available PC2-5300 memory from other manufacturers

Manufacturer	Partnumber	Description	Tested on model
Crucial	CT2KIT12864AC667	2x1 GB	R60e (0657-3LG1)
Crucial	CT25664AC667	2 GB
Crucial	CT2KIT6464AC667	2x512 MB
Crucial	CT12864AC667	1 GB
Crucial	CT6464AC667	512 MB
G.Skill	F2-5400PHU1-1GBSA	1 GB	T60p (2007-93G 2)

FOOTNOTES [Δ]

1. The memory module that was shipped with this laptop had the same Micron logo as the modules from Crucial, which is a division of that company.
2. Memory for T60p spec is CL5, but this module which was CL4 works fine. The product page at G.Skill describes it wrongly as a CL5 module.