PC-66

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PC-66

This is 66MHz SDRAM memory in 144-pin SO-DIMM form-factor.

SO-DIMM

Available memory types from IBM

Partnumber FRU Description
76H0293 42H2818 16MB PC66 SDRAM 3.3v NP SO-DIMM
76H0294 42H2819
10L1226
32MB PC66 SDRAM 3.3v NP SO-DIMM
76H0295
20L0241
42H2820
20L0242
10L1227
64MB PC66 SDRAM 3.3v NP SO-DIMM
01K1150 01K1151
01K1153
128MB PC66 SDRAM 3.3v NP SO-DIMM
NOTE!
As PC-66 memory is getting increasingly difficult to aquire, PC-100 or PC-133 memory can be used instead. Using PC-100 or PC-133 memory will not increase system performance, as it will be run at only PC-66 speed.

ThinkPads that support this technology

ThinkPad Models Soldered
on systemboard
DIMM
Slot 1
DIMM
Slot 2
Official
Max-Memory
Unofficial
Max-Memory1
240 64MB Empty NA 192MB2 320MB
390, 390E Occupied Empty 256MB3 Unknown
570 64MB Empty NA 192MB2 320MB
600 - Pentium Occupied Empty 256MB3 Unknown
600 - Pentium II 32MB Empty or
32MB DIMM
Empty 288MB4 Unknown
600E 32MB Empty or
32MB DIMM
Empty 288MB4 Unknown
770 Occupied Empty 256MB5 Unknown
770E, 770ED 32MB Empty or
32MB DIMM
Empty 288MB4 Unknown
770X 64MB Empty or
64MB DIMM
Empty 320MB4 512MB
770Z 64MB 64MB DIMM Empty 320MB4 512MB
i Series 1400, i Series 1410,
i Series 1411, i Series 1450,
i Series 1451
Occupied Empty 256MB3 Unknown
i Series 1412, i Series 1451,
i Series 1472
Occupied Empty 256MB3 Unknown
i Series 1420, i Series 1421,
i Series 1441, i Series 1460,
i Series 1480
Occupied Empty 256MB3 Unknown
i Series 1512, i Series 1552 Occupied Empty 256MB3 Unknown
i Series 1540, i Series 1541,
i Series 1560
Occupied Empty 256MB3 Unknown
i Series 1720, i Series 1721 Occupied Empty 256MB3 Unknown

FOOTNOTES [Δ]
  1. See Unofficial_maximum_memory_specs
  2. Based on base 64MB plus 128MB DIMM in Slot 1
  3. Based on 2x 128MB DIMMs
  4. Based on base memory plus 2x 128MB DIMMs
  5. Based on 2x 128MB DIMMs, also supports older EDO memory