以下是IBM笔记本大部分型号的硬盘、内存最大支持容量及规格，此文章主要针对P2和P3的IBM笔记本，方便各网友硬件升级，提出参考。

注：以下笔记本所加的256M内存均是16颗粒
                     芯片组                         最大支持内存           推荐硬盘
Thinkpad 240      BX                      64+192=256                       80GN
Thinkpad 240x     MX                     64+192=256                       80GN
Thinkpad 240z     MX                     64+192=256(2609-71x)        80GN
                                             128+128=256(2609-72x)           80GN
Thinkpad 390      TX                      32+256=288                       40GN 
Thinkpad 390      BX                      64+256=320                       80GN
Thinkpad 390e     BX                      32(64)+256=288（320）            80GN
Thinkpad 390x     BX                      256+256=512                     80GN
Thinkpad 560z     BX                      64+64=128(EDO)                40GN
Thinkpad 570      BX                       64+256=320                      80GN
Thinkpad 570e     BX                      64+256=320                      80GN
Thinkpad 600      BX                      32+128+128(256)=288(416)         80GN
Thinkpad 600e     BX                      32+128+128(256)=288(416)         80GN
Thinkpad 600x     BX                       64+256+256=576                  80GN
Thinkpad 770e     BX                      32+256+256=546                   80GN
Thinkpad 770ed    BX                      32+256+256=546                  80GN
Thinkpad 770x     BX                       32+256+256=546                  80GN
Thinkpad iSeries    BX                      64+256=320                         80GN
Thinkpad T20      BX                       256+256=512                       80GN
Thinkpad T21      BX                       256+256=512                       80GN
Thinkpad T22      BX                       256+256=512                        80GN
Thinkpad X20      BX                       64+256=320                          80GN
Thinkpad X21      BX                       128+256=384                        80GN
Thinkpad A20m    BX                       256+256=512                       80GN
Thinkpad A21m    BX                       256+256=512                       80GN
Thinkpad A21e     BX                       256+256=512                       80GN
Thinkpad A22m    BX                       256+256=512                       80GN
Thinkpad A22e     BX                       256+256=512                       80GN
ThinkpadA22p     BX                        256+256=512                       80GN

以下笔记本所加256M内存均是8颗粒
Thinkpad R30      ALI                         512+512=1G                     5K80
Thinkpad R31      ALI                         512+512=1G                     5K80
Thinkpad T23      830MP                    512+512=1G                     5K80
Thinkpad X22      830MP                    128+512=640                    5K80(80GN)
Thinkpad X23      830MP                    128+512=640                    5K80(80GN)
Thinkpad X24      830MP                    128+512=640                    5K80(80GN)
Thinkpad X30      830MG                    512+512=1G                     5K80(80GN)
Thinkpad A30(p)    830MP                  512+512=1G                     5K80

作者:专门网斑竹ati725