Difference between revisions of "Unofficial maximum memory specs"

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Have a look at the [[Memory]] page for the official memory configs and partnumbers
 
Have a look at the [[Memory]] page for the official memory configs and partnumbers
  
−
==Tested Memory configurations==
+
==Working memory configurations==
 
The following table gives an overview of tested memory configurations that exceed the specified limits for that ThinkPad type.
 
The following table gives an overview of tested memory configurations that exceed the specified limits for that ThinkPad type.
  
 
{| border="1" cellspacing="0" cellpadding="2"
 
{| border="1" cellspacing="0" cellpadding="2"
−
! ThinkPad !! max. Specs !! BIOS !! Embedded Controller !! Memory configuration successfully tested
+
! ThinkPad !! Official Max !! Unoffical Max !! BIOS !! Embedded Controller !! Memory configuration successfully tested
 
|- style="vertical-align:top;"
 
|- style="vertical-align:top;"
−
| ThinkPad X31 2673-C2G || 1 GB || 3.02 || 1.08 ||
+
| ThinkPad {{A31p}}<br />2653-R8U || 1 GB || 2 GB || 1.10 || 1.05 ||
−
* 2 GB with 2 x 1 GB (Team Group INC. TSDR1024M400 DDR400MHz)
+
2 x Elpida 1 GB 200-pin DDR PC2700, FRU # 31P9835
−
* It boots with 1 bar (1xTSDR1024M400) too.
 
 
|-
 
|-
−
| ThinkPad T30<br />2366-92U || 1 GB || 2.08 || 1.06 ||
+
| ThinkPad {{A31p}}<br />2653-R?? || 1 GB || || 1.09 || 1.05 ||
−
* Kingmax 1GB 200-Pin DDR SO-DIMM DDR333 (PC2700) Model # MSAD42D-KI
+
2 x Kingston 1GB 200-Pin DDR, Model# KTM - TP9828/1G
−
* Kingmax 1GB 200-Pin DDR SO-DIMM DDR333 (PC2700) Model # MSAD42D-KI
 
−
but see [[problem with T30 not booting with 1 GiB memory module]].
 
 
|-
 
|-
−
| ThinkPad 240<br />2609-40U || 320MByte || IRETWWW76 || n/a ||
+
| ThinkPad {{SL500}}<br /> || 4 GB || 8 GB || ?.?? || ?.?? ||
−
* Any PC100/256MByte memory in 16 Chip Configuration will do
+
2 x 4GB 200-Pin DDR2 PC2-5300
 
|-
 
|-
−
| ThinkPad 570<br />2644-3AU || 320MByte || 1.16 IMET65WW 11/11/99 || n/a ||
+
| ThinkPad {{T30}}<br />2366-92U || 1 GB || || 2.08 || 1.06 ||
−
* Kingston KTM-TP390X/256 256MB MODULE FRU 16P6327 -  16 Chips 8 each side
+
2 x Kingmax 1GB 200-Pin DDR SO-DIMM DDR333 PC2700, Model# MSAD42D-KI<BR>
 +
:But causes [[:Category:T30#Kernel_Panic|kernel to panic at boot]].<BR>
 +
2 x Generic Brand 1GB 200-pin DDR SO-DIMM PC2700 (p/n 89898E):
 +
:BIOS recognizes 2048MB, but Gentoo sees only 1024MB
 
|-
 
|-
−
| ThinkPad 770x<br />9549|| 448MByte || 1.11 IIET42WW 09/10/99 || n/a ||
+
| ThinkPad {{T42}} [[2373-CTO]] || 2 GB || || 3.17 || 3.04 ||
−
* 448MB = 256MB PC-100 + 128MB PC-66 + internal 64MB using IBM 256MB MODULE FRU 33L3070 PC 100 CL2 - 16 Chips 8 each side.
+
???
−
* 512MB = 2x256MB PC-100 + 64MB internal booted up as well. 512MB is due to 440BX-Chipset limitations, 64MB are overlapping or unused.
 
 
|-
 
|-
−
| ThinkPad 600<br /> ? || 288 mb || ? || ? ||
+
| ThinkPad {{T42}} [[2373-CTO]] || 2 GB || || 3.23 || 3.04 ||
−
* 416 mb = 256 mb '''low density''' PC-100 SODIMM + 128 mb PC-66 SODIMM + 32 mb PC-66 onboard (Note: that which SODIMM you put in which slot matters.  This was first reported working on the [http://zurich.csail.mit.edu/hypermail/thinkpad/2004-04/0797.html Thinkpad Mailing List], and it worked error-free for me when I tested it.
+
???
 
|-
 
|-
−
| ThinkPad A31p<br />2653-R || 1 GB || 1.09 || 1.05 ||
+
| ThinkPad {{T43p}} 2668-WTB || 2 GB || || 1.29 || 1.06 ||
−
* Kingston 1GB 200-Pin DDR Model # KTM - TP9828/1G
+
* 2 x Kingston 1GB 200-Pin 533MHz DDR2, Model KTM-TP3840/1G DDR2
−
* Kingston 1GB 200-Pin DDR Model # KTM - TP9828/1G
+
|-
 +
| ThinkPad {{T61}}<br />6466-9MG || 4 GB || 8 GB || [[BIOS_Upgrade#Alternative_BIOS:_Middleton_BIOS|2.29 middleton (SATA-II modified)]] || 1.08 ||
 +
2 x Crucial 4GB 200-Pin 800MHz DDR2, Model # CT51264AC800. (PC2-6400)
 +
|-
 +
| ThinkPad {{T61p}}<br />6457-5GG || 4 GB || 8 GB || 2.19 || 1.08 ||
 +
2 x Kingston 4GB 200-Pin 667MHz DDR2, Model # KTL-TP667/4GB.
 +
|-
 +
| ThinkPad {{T61p}}<br />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}}<br />6457-7XG || 4 GB || 8 GB || 2.26 || 1.08 ||
 +
2 x Crucial 4GB 200-Pin 800MHz DDR2, Model # CT51264AC800. (PC2-6400)
 +
|-
 +
| ThinkPad {{T61p}}<br />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}}<br />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}}<br />6460-8YG || 4 GB || 8 GB || 2.26 || 1.08 ||
 +
2 x Crucial 4GB 200-Pin 667MHz DDR2, Model# CT2KIT51264AC667 ( 2x CT51264AC667)
 +
|-
 +
| ThinkPad {{T61p}}<br />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}}<br />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 ||
 +
* 2 x 1GB Kingston KVR400X64SC3A/1G DDR400MHz. Newer documentation also states 2GB, but original one did not.
 +
* Boots with 1 bar.
 +
|-
 +
| ThinkPad {{X31}} 2673-C2G || 1 GB || || 3.02 || 1.08 ||
 +
* 2 x 1GB (Team Group Inc. TSDR1024M400 DDR400MHz)
 +
* Boots with 1 x TSDR1024M400
 +
|-
 +
| ThinkPad {{X41}} 2525-CTO || 1.5 GB || 2 GB || 2.09 || 1.02 ||
 +
* 1 x 2GB ( ??? )
 +
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 ||
 +
* 1 x 2GB (Transcend TS2GIB3847 DDR2 667 MHz)
 +
* 1 x 2GB (FRU 73P3846 DDR2 PC2-4200)
 +
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 ||
 +
* 1 x 2GB (Crucial CT25664AC667 DDR2 PC2-5300)
 +
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 ||
 +
* 1 x 2GB (Transcend JM667QSU-2G DDR2 667 MHz)
 +
BIOS claims 2.5GB. Diagnostic POST tests only 2GB. Linux and Windows XP recognize 2GB.
 +
|-
 +
| ThinkPad {{X61}}<br />7675-K2U || 4 GB || 8 GB || ?.?? || ?.?? ||
 +
Kingston 8GB (set of 2x4GB) 200-Pin DDR2, KVR667D2S5K2/8G<br/>''Equivalent to 2 x Kingston KVR667D2S5/4G''
 +
|-
 +
| ThinkPad {{X61s}}<br />7666AK7 || 4GB || 8GB || 2.16 || 1.03 ||
 +
2 x Generic 4GB DDR2 SODIMM (200 pin) 667Mhz PC2 5400 / PC2 5300 CL 5.0
 +
|-
 +
| ThinkPad {{X61s}}<br />7667-CTO || 4GB || 8GB || 2.21 || 1.03 ||
 +
2 x Hynix 4GB DDR2 SODIMM (200 pin) 800Mhz CL6 PC2 6400-2568
 +
|-
 +
| ThinkPad {{X61t}}<br />7764-CTO || 4 GB || 8 GB || 1.23 || ?.?? ||
 +
2 x Generic 4GB 200-Pin DDR2.
 +
|-
 +
| ThinkPad {{X61t}}<br />7762-94G || 4 GB || 8 GB || 1.23 || 1.02 ||
 +
2 x Kingston 4GB 200-Pin DDR2, KVR667D2S5/4G.
 +
|-
 +
| ThinkPad {{X61t}}<br />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}}<br />3508-CTO || 4GB || 8GB || 1.29 || 1.22 ||
 +
2 x G.Skill 4GB 200-Pin 800MHz DDR2, Model # F2-6400CL6D-8GBSQ (PC2-6400)
 +
|-
 +
| rowspan=2 | ThinkPad {{X120e}}<br />0596-CTO || rowspan=2 | 4GB || rowspan=2 | 8GB || ?.?? || ?.?? ||
 +
2 x Kingston KVR1066D3S7/4G = 8GB SODIMM DDR3 1066MHz CL7
 +
|-
 +
<!-- |ThinkPad {{X120e}}<br />0596-CTO || 4GB || 8GB -->
 +
| 1.16 || N/A || 2 x Crucial 4GB CT2K4G3S1067M/CT2C4G3S1067M (8GB Kit for Mac): DDR3/DDR3L-1066 MT/s (PC3-8500) CL7 204-Pin SODIMM
 +
|-
 +
| ThinkPad {{X200}}<br />7459-W2H || 4 GB || 8 GB || 3.13 || 1.06 ||
 +
2 x KVR1066D3S7/4G.
 +
|-
 +
| ThinkPad {{X200}}<br />7459-GH6 || 4 GB || 8 GB || 3.22 || 1.07 ||
 +
2 x Samsung M471B5273DM0-CH9 = 2x4GB SODIMM DDR 1333MHz
 +
|-
 +
| ThinkPad {{X200s}}<br />7466-9QG || 4 GB || 8 GB || 3.11 || 1.06 ||
 +
2 x KVR1333D3S9/4G.
 +
|-
 +
| ThinkPad<br>{{X201}} <br />3680-1N1 || 4 GB || 8 GB || 1.40 || 1.15 ||
 +
2 x Samsung M471B5273DH0-CH9 = 2x4GB SODIMM DDR 1333MHz
 +
|-
 +
| Thinkpad {{X200s}}<br />7465-RH6 || 4 GB || 8 GB || 2.08 || 1.04 ||
 +
2 x SP008GBSTU133V22/4G
 +
|-
 +
| ThinkPad {{X220}}<br />4290-2WG || 8 GB || 16 GB || 8DET58WW (1.28) || 8DHT29WW (1.13) ||
 +
2 x Micron CT102464BF160B.C16FER = 2x8GB SODIMM DDR3 1600MHz
 +
|-
 +
| ThinkPad {{X260}}<br />20F5-S16B00 || 16 GB || 32 GB || R02ET74W (1.47) || R02HT33W (1.15) ||
 +
1 x Mushkin SO-DIMM 32 GB DDR4-2666 MES4S266KF32G
 +
|-
 +
| ThinkPad {{240}}<br />2609-40U || 320MByte || || IRETWWW76 || n/a ||
 +
* Any PC100 256MB memory in 16-chip configuration
 +
|-
 +
| ThinkPad {{240X}}<br /> ||  256MByte || || unknown || n/a ||
 +
* Some PC100 256MB memory in 16-chip configuration may work. Chipset cannot handle more than 256MB
 +
|-
 +
| ThinkPad {{560X}}<br /> || 96 Mio || 160 Mio || [http://forum.thinkpads.com/viewtopic.php?f=6&t=36692&p=243948#p243948 "the latest"] (probably 1.15 I8ET33WW 1999-12-17) || ||
 +
* part 8038E, KTD-CP/128 for Dell Latitude [http://xenomorph.net/misc/thinkpad-560x/ tested by Xenomorph]
 +
* [http://forum.thinkpads.com/viewtopic.php?f=6&t=75067&p=500603#p500603 discussed by ThinkPad560X and Xenomorph on forum.thinkpads.com]
 +
|-
 +
| ThinkPad {{570}}<br />2644-3AU ||  320MB || || 1.16 IMET65WW 11/11/99 || n/a ||
 +
* Kingston KTM-TP390X/256 256MB MODULE FRU 16P6327 - 16 chips, 8 each side
 +
|-
 +
| ThinkPad {{600}}<br /> ? || 288MB || || ? || ? ||
 +
* 416MB = 256MB '''low density''' PC100 SODIMM + 128MB PC66 SODIMM + 32MB PC66 on-board. It matters which SODIMM you put in which slot.  This was first reported working on the [http://zurich.csail.mit.edu/hypermail/thinkpad/2004-04/0797.html Thinkpad Mailing List], and it worked error-free for me.
 +
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}}<br />9549|| 448MB || || 1.11 IIET42WW 09/10/99 || n/a ||
 +
* 448MB = 256MB PC100 + 128MB PC66 + internal 64MB using IBM 256MB MODULE FRU 33L3070 PC100 CL2 - 16 chips, 8 each side
 +
* 512MB = 2 x 256MB PC100 + 64MB internal booted up as well. 512MB is due to 440LX-Chipset limitations, 64MB are overlapping or unused.
 +
|-
 +
|}
 +
 
 +
==Non-working memory configurations==
 +
{| border="1" cellspacing="0" cellpadding="2"
 +
! ThinkPad !! max. Specs !! BIOS !! Embedded Controller !! Memory configuration unsuccessfully tested
 +
|- style="vertical-align:top;"
 +
| ThinkPad {{A21m}}<br /> || 512MB || ? || ? ||
 +
* 2 x Microx 144-pin 512MB PC133 SDRAM SODIMM 32x16 8C
 +
* 1 x Microx 144-pin 512MB PC133 SDRAM SODIMM 32x16 8C
 +
* 1 x Microx 144-pin 512MB PC133 SDRAM SODIMM 32x16 8C
 +
:+ 1 x 144-pin 256MB PC133 SDRAM SODIMM
 +
|- style="vertical-align:top;"
 +
| ThinkPad<br>{{T43}} || 3GB || 1YET62WW (1.27 ) || 1YHT29WW-1.06 || 3GB:<br>
 +
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2GB: Micron<br>
 +
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1GB: Kingston<br>
 +
In 2+1 configuration system doesn't starts (black screen constantly).
 +
In 1+2 configuration system works, but sees only 2GB in BIOS and Linux.
 +
|-
 +
| {{T43}}<br/>1871-Y11 || 2 Gio || 70ET69WW (1.29 2007-06-05) || 70HT28WW (1.05 2006-06-01) ||
 +
[http://forum.thinkpads.com/viewtopic.php?f=2&t=113492&p=729048#p729048 T43 (with 915GM) rejects Kingston Module ID Number 9905293-007.A00LF, which is accepted by a Dell 915PM and several newer systems.]  [http://forum.thinkpads.com/viewtopic.php?f=2&t=40831&p=272867#p272867 T43 seems very picky when it comes to memory modules.]
 +
--[[User:Numeric|Numeric]] ([[User talk:Numeric|talk]])
 +
|- style="vertical-align:top;"
 +
| ThinkPad<br>{{T61p}}<br>6460-DVU || 4GB || 7LETC7WW (2.27)<br>04/08/2010 || 1.08 || 6GB:<br>
 +
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4GB: Micron MT16HTS51264HY<br>
 +
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2GB: Kingston KTH-ZD8000C6<br>
 +
Passed Windows Memory Diagnostic (Standard),<br>
 +
but system became slightly unstable, app crash every 1-2 hours,<br>
 +
failed Lenovo Toolbox memory test.
 +
|-
 +
| ThinkPad<br>{{X200s}} || 4GB || 3.17 || 1.06 || 8GB:<br>
 +
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4GB: Kingston<br>
 +
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4GB: Kingston<br>
 +
0 + 4: System starts but stops before bootloader (GRUB).<br>
 +
4 + 4: System starts, OS boots. But several issues:<br>
 +
''Segmentation faults'': Memory intensive apps crashing randomly (eclipse)<br>
 +
''WLAN instability issues'': driver keeps disconnecting under load<br>
 +
''Graphic card errors'': [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung
 +
|-
 +
| ThinkPad<br>{{X201}} 3680-PBG || 4GB || 6QET70WW (1.40) || 6QHT34WW (1.15) || 8GB:<br>
 +
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4GB: Corsair 1333MHz 9-9-9-24 1.5v (CMSO4GX3M1A1333C9)<br>
 +
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4GB: Corsair 1333MHz 9-9-9-24 1.5v (CMSO4GX3M1A1333C9)<br>
 +
All combinations (4+4, 4+0 and 0+4 with either module in either slot):<br>
 +
Can enter BIOS, memory amount displays correct.<br>
 +
Memtest86+ corrupts display and reboots <1sec after test start.<br>
 +
Reboots immediately after kernel decompressed.
 +
|-
 +
| ThinkPad<br>{{X201}} 3680-1N1 || 4GB || 6QET70WW (1.40) || 6QHT34WW (1.15) || 8GB:<br>
 +
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4GB: Kingston PC3-10600 1333MHz 9-9-9-24 1.5v (KVR13S9S8K2/8) with 2*4*512 chips<br>
 +
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4GB: Kingston PC3-10600 1333MHz 9-9-9-24 1.5v (KVR13S9S8K2/8) with 2*4*512 chips<br>
 +
Can enter BIOS, memory amount displays correct.<br>
 +
After running for a few seconds Memtest86+ 4.20/5.01RC corrupting display and either reboot (4+0 or 0+4) or just hang (4+4) (same with Windows Memory Diagnostic).<br>
 +
Xubuntu 15.04 x64: loading GRUB but hangs at loading with kernel panic message 2 seconds.<br>
 +
Windows 7/8 x64: reboots even before loading animation starts.
 
|-
 
|-
 
|}
 
|}
  
 
==External Sources==
 
==External Sources==
−
*[http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-55644 IBM's official Memory compatibility page]
+
* [http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-55644 IBM's official Memory compatibility page]

Latest revision as of 09:35, 12 October 2022

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

But causes kernel to panic at boot.

2 x Generic Brand 1GB 200-pin DDR SO-DIMM PC2700 (p/n 89898E):

BIOS recognizes 2048MB, but Gentoo sees only 1024MB
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
  • 2 x Kingston 1GB 200-Pin 533MHz DDR2, Model KTM-TP3840/1G DDR2
ThinkPad T61
6466-9MG		 4 GB 8 GB 2.29 middleton (SATA-II modified) 1.08

2 x Crucial 4GB 200-Pin 800MHz DDR2, Model # CT51264AC800. (PC2-6400)

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
  • 2 x 1GB Kingston KVR400X64SC3A/1G DDR400MHz. Newer documentation also states 2GB, but original one did not.
  • Boots with 1 bar.
ThinkPad X31 2673-C2G 1 GB 3.02 1.08
  • 2 x 1GB (Team Group Inc. TSDR1024M400 DDR400MHz)
  • Boots with 1 x TSDR1024M400
ThinkPad X41 2525-CTO 1.5 GB 2 GB 2.09 1.02
  • 1 x 2GB ( ??? )

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
  • 1 x 2GB (Transcend TS2GIB3847 DDR2 667 MHz)
  • 1 x 2GB (FRU 73P3846 DDR2 PC2-4200)

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
  • 1 x 2GB (Crucial CT25664AC667 DDR2 PC2-5300)

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
  • 1 x 2GB (Transcend JM667QSU-2G DDR2 667 MHz)

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
Equivalent to 2 x Kingston KVR667D2S5/4G

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 X61s
7667-CTO		 4GB 8GB 2.21 1.03

2 x Hynix 4GB DDR2 SODIMM (200 pin) 800Mhz CL6 PC2 6400-2568

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

1.16 N/A 2 x Crucial 4GB CT2K4G3S1067M/CT2C4G3S1067M (8GB Kit for Mac): DDR3/DDR3L-1066 MT/s (PC3-8500) CL7 204-Pin SODIMM
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
X201
3680-1N1		 4 GB 8 GB 1.40 1.15

2 x Samsung M471B5273DH0-CH9 = 2x4GB SODIMM DDR 1333MHz

Thinkpad X200s
7465-RH6		 4 GB 8 GB 2.08 1.04

2 x SP008GBSTU133V22/4G

ThinkPad X220
4290-2WG		 8 GB 16 GB 8DET58WW (1.28) 8DHT29WW (1.13)

2 x Micron CT102464BF160B.C16FER = 2x8GB SODIMM DDR3 1600MHz

ThinkPad X260
20F5-S16B00		 16 GB 32 GB R02ET74W (1.47) R02HT33W (1.15)

1 x Mushkin SO-DIMM 32 GB DDR4-2666 MES4S266KF32G

ThinkPad 240
2609-40U		 320MByte IRETWWW76 n/a
  • Any PC100 256MB memory in 16-chip configuration
ThinkPad 240X
 256MByte unknown n/a
  • Some PC100 256MB memory in 16-chip configuration may work. Chipset cannot handle more than 256MB
ThinkPad 560X
 96 Mio 160 Mio "the latest" (probably 1.15 I8ET33WW 1999-12-17)
ThinkPad 570
2644-3AU		 320MB 1.16 IMET65WW 11/11/99 n/a
  • Kingston KTM-TP390X/256 256MB MODULE FRU 16P6327 - 16 chips, 8 each side
ThinkPad 600
 ?		 288MB ? ?
  • 416MB = 256MB low density PC100 SODIMM + 128MB PC66 SODIMM + 32MB PC66 on-board. It matters which SODIMM you put in which slot. This was first reported working on the Thinkpad Mailing List, and it worked error-free for me.

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
  • 448MB = 256MB PC100 + 128MB PC66 + internal 64MB using IBM 256MB MODULE FRU 33L3070 PC100 CL2 - 16 chips, 8 each side
  • 512MB = 2 x 256MB PC100 + 64MB internal booted up as well. 512MB is due to 440LX-Chipset limitations, 64MB are overlapping or unused.

Non-working memory configurations

ThinkPad max. Specs BIOS Embedded Controller Memory configuration unsuccessfully tested
ThinkPad A21m
 512MB ? ?
  • 2 x Microx 144-pin 512MB PC133 SDRAM SODIMM 32x16 8C
  • 1 x Microx 144-pin 512MB PC133 SDRAM SODIMM 32x16 8C
  • 1 x Microx 144-pin 512MB PC133 SDRAM SODIMM 32x16 8C
+ 1 x 144-pin 256MB PC133 SDRAM SODIMM
ThinkPad
T43		 3GB 1YET62WW (1.27 ) 1YHT29WW-1.06 3GB:

      2GB: Micron
      1GB: Kingston
In 2+1 configuration system doesn't starts (black screen constantly). In 1+2 configuration system works, but sees only 2GB in BIOS and Linux.

T43
1871-Y11		 2 Gio 70ET69WW (1.29 2007-06-05) 70HT28WW (1.05 2006-06-01)

T43 (with 915GM) rejects Kingston Module ID Number 9905293-007.A00LF, which is accepted by a Dell 915PM and several newer systems. T43 seems very picky when it comes to memory modules. --Numeric (talk)

ThinkPad
T61p
6460-DVU		 4GB 7LETC7WW (2.27)
04/08/2010		 1.08 6GB:

      4GB: Micron MT16HTS51264HY
      2GB: Kingston KTH-ZD8000C6
Passed Windows Memory Diagnostic (Standard),
but system became slightly unstable, app crash every 1-2 hours,
failed Lenovo Toolbox memory test.

ThinkPad
X200s		 4GB 3.17 1.06 8GB:

      4GB: Kingston
      4GB: Kingston
0 + 4: System starts but stops before bootloader (GRUB).
4 + 4: System starts, OS boots. But several issues:
Segmentation faults: Memory intensive apps crashing randomly (eclipse)
WLAN instability issues: driver keeps disconnecting under load
Graphic card errors: [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung

ThinkPad
X201 3680-PBG		 4GB 6QET70WW (1.40) 6QHT34WW (1.15) 8GB:

      4GB: Corsair 1333MHz 9-9-9-24 1.5v (CMSO4GX3M1A1333C9)
      4GB: Corsair 1333MHz 9-9-9-24 1.5v (CMSO4GX3M1A1333C9)
All combinations (4+4, 4+0 and 0+4 with either module in either slot):
Can enter BIOS, memory amount displays correct.
Memtest86+ corrupts display and reboots <1sec after test start.
Reboots immediately after kernel decompressed.

ThinkPad
X201 3680-1N1		 4GB 6QET70WW (1.40) 6QHT34WW (1.15) 8GB:

      4GB: Kingston PC3-10600 1333MHz 9-9-9-24 1.5v (KVR13S9S8K2/8) with 2*4*512 chips
      4GB: Kingston PC3-10600 1333MHz 9-9-9-24 1.5v (KVR13S9S8K2/8) with 2*4*512 chips
Can enter BIOS, memory amount displays correct.
After running for a few seconds Memtest86+ 4.20/5.01RC corrupting display and either reboot (4+0 or 0+4) or just hang (4+4) (same with Windows Memory Diagnostic).
Xubuntu 15.04 x64: loading GRUB but hangs at loading with kernel panic message 2 seconds.
Windows 7/8 x64: reboots even before loading animation starts.

External Sources

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