Unofficial maximum memory specs
Some ThinkPads are known to support more memory than their specs say. This page gathers information about those models, how much memory they can take and what special requirements that memory must fulfill.
Have a look at the Memory page for the official memory configs and partnumbers
Working memory configurations
The following table gives an overview of tested memory configurations that exceed the specified limits for that ThinkPad type.
ThinkPad | Official Max | Unoffical Max | BIOS | Embedded Controller | Memory configuration successfully tested |
---|---|---|---|---|---|
ThinkPad A31p 2653-R8U |
1 GB | 2 GB | 1.10 | 1.05 |
2 x Elpida 1 GB 200-pin DDR PC2700, FRU # 31P9835 |
ThinkPad A31p 2653-R?? |
1 GB | 1.09 | 1.05 |
2 x Kingston 1GB 200-Pin DDR, Model# KTM - TP9828/1G | |
ThinkPad SL500 |
4 GB | 8 GB | ?.?? | ?.?? |
2 x 4GB 200-Pin DDR2 PC2-5300 |
ThinkPad T30 2366-92U |
1 GB | 2.08 | 1.06 |
2 x Kingmax 1GB 200-Pin DDR SO-DIMM DDR333 PC2700, Model# MSAD42D-KI
2 x Generic Brand 1GB 200-pin DDR SO-DIMM PC2700 (p/n 89898E):
| |
ThinkPad T42 2373-CTO | 2 GB | 3.17 | 3.04 |
??? | |
ThinkPad T42 2373-CTO | 2 GB | 3.23 | 3.04 |
??? | |
ThinkPad T43p 2668-WTB | 2 GB | 1.29 | 1.06 |
| |
ThinkPad T61p 6457-5GG |
4 GB | 8 GB | 2.19 | 1.08 |
2 x Kingston 4GB 200-Pin 667MHz DDR2, Model # KTL-TP667/4GB. |
ThinkPad T61p 6460-EEG |
4 GB | 8 GB | 2.27 middleton (SATA-II modified) | 1.08 |
2 x Samsung SODIMM 4GB PC2-5300 DDR2-667, Model # M470T5267AZ3-CE6 / 4GB. |
ThinkPad T61p 6457-7XG |
4 GB | 8 GB | 2.26 | 1.08 |
2 x Crucial 4GB 200-Pin 800MHz DDR2, Model # CT51264AC800. (PC2-6400) |
ThinkPad T61p 6457-BQG |
4 GB | 8 GB | 2.27 | 1.08 |
2 x Corsair 4GB 200-Pin 800MHz DDR2, Corsair ValueSelect SO-DIMM 4GB PC2-6400S CL6 VS4GSDS800D2 G . |
ThinkPad T61p 6459-CTO |
4 GB | 8 GB | 2.26 | 1.08 |
2 x G.Skill 4GB 200-Pin 800MHz DDR2, Model # F2-6400CL6D-8GBSQ (PC2-6400) |
ThinkPad T61p 6460-8YG |
4 GB | 8 GB | 2.26 | 1.08 |
2 x Crucial 4GB 200-Pin 667MHz DDR2, Model# CT2KIT51264AC667 ( 2x CT51264AC667) |
ThinkPad T61p 6460-DVU |
4 GB | 8 GB | 2.26 | 1.08 |
2 x G.Skil 4GB 200-Pin 667MHz DDR2, Model# F2-5300CL5D-8GBSQ, CL5-5-5-15, PC2-5300 |
ThinkPad T61p 8889-3FG |
4 GB | 8 GB | TBA | TBA |
2 x Kingston 4GB 200-Pin 667MHz DDR2, KVR667D2S5/4G. |
ThinkPad X31 2672-C2G | 1 GB | 3.02 | 1.08 |
| |
ThinkPad X31 2673-C2G | 1 GB | 3.02 | 1.08 |
| |
ThinkPad X41 2525-CTO | 1.5 GB | 2 GB | 2.09 | 1.02 |
BIOS claims 2.5 GB. Diagnostic POST and memtest86+ both test only 2 GB. Linux and Windows XP recognize 2 GB. |
ThinkPad X41 2528-5FU | 1.5 GB | 2.09 | 1.02 |
BIOS claims 2.5 GB. Diagnostic POST tests only 2 GB. Linux and XP recognize 2 GB. | |
ThinkPad X41 2525-F8G | 1.5 GB | 2 GB | 2.06 | 1.01 |
BIOS claims 2.5 GB. Diagnostic POST and memtest86+ both test only 2 GB. Linux and Windows XP recognize 2 GB. |
ThinkPad X41 Tablet 1866-6HU | 1.5 GB | 2.03 | 1.02 |
BIOS claims 2.5GB. Diagnostic POST tests only 2GB. Linux and Windows XP recognize 2GB. | |
ThinkPad X61 7675-K2U |
4 GB | 8 GB | ?.?? | ?.?? |
Kingston 8GB (set of 2x4GB) 200-Pin DDR2, KVR667D2S5K2/8G |
ThinkPad X61s 7666AK7 |
4GB | 8GB | 2.16 | 1.03 |
2 x Generic 4GB DDR2 SODIMM (200 pin) 667Mhz PC2 5400 / PC2 5300 CL 5.0 |
ThinkPad X61 Tablet 7764-CTO |
4 GB | 8 GB | 1.23 | ?.?? |
2 x Generic 4GB 200-Pin DDR2. |
ThinkPad X61 Tablet 7762-94G |
4 GB | 8 GB | 1.23 | 1.02 |
2 x Kingston 4GB 200-Pin DDR2, KVR667D2S5/4G. |
ThinkPad X61 Tablet 7762-95G |
4 GB | 8 GB | 1.23 | 1.02 |
2 x Kingston 4GB 200-Pin DDR2, KVR667D2S5/4G. Ubuntu 10.10 64bit shows installed memory size of 7,7 GiB. |
ThinkPad X100e 3508-CTO |
4GB | 8GB | 1.29 | 1.22 |
2 x G.Skill 4GB 200-Pin 800MHz DDR2, Model # F2-6400CL6D-8GBSQ (PC2-6400) |
ThinkPad X120e 0596-CTO |
4GB | 8GB | ?.?? | ?.?? |
2 x Kingston KVR1066D3S7/4G = 8GB SODIMM DDR3 1066MHz CL7 |
ThinkPad X200 7459-W2H |
4 GB | 8 GB | 3.13 | 1.06 |
2 x KVR1066D3S7/4G. |
ThinkPad X200 7459-GH6 |
4 GB | 8 GB | 3.22 | 1.07 |
2 x Samsung M471B5273DM0-CH9 = 2x4GB SODIMM DDR 1333MHz |
ThinkPad X200s 7466-9QG |
4 GB | 8 GB | 3.11 | 1.06 |
2 x KVR1333D3S9/4G. |
ThinkPad 240 2609-40U |
320MByte | IRETWWW76 | n/a |
| |
ThinkPad 240X |
256MByte | unknown | n/a |
| |
ThinkPad 570 2644-3AU |
320MB | 1.16 IMET65WW 11/11/99 | n/a |
| |
ThinkPad 600 ? |
288MB | ? | ? |
The 600E (2645-8A0) with Bios INET36WW accept two modules of 256MB. The ram modules have 8 chips on each side. That results in 544MB. (RAM Typ: Micron MT16LSDF3264HG-133E4 PC133 CL3 sync). Processor is an Intel PII 366 PE, installed platform is Windows XP Pro with SP3. | |
ThinkPad 770X 9549 |
448MB | 1.11 IIET42WW 09/10/99 | n/a |
|
Non-working memory configurations
ThinkPad | max. Specs | BIOS | Embedded Controller | Memory configuration unsuccessfully tested |
---|---|---|---|---|
ThinkPad A21m |
512MB | ? | ? |
|
ThinkPad T61p 6460-DVU |
4GB | 7LETC7WW (2.27) 04/08/2010 |
1.08 | 6GB: 4GB: Micron MT16HTS51264HY |
ThinkPad T43 |
3GB | 1YET62WW (1.27 ) | 1YHT29WW-1.06 | 3GB: 2GB: Micron |
ThinkPad X200s |
4GB | 3.17 | 1.06 | 8GB: 4GB: Kingston |