Tips and Tricks, rAM, pC2700, rAM can be used in the T30, but it will only run.
Hardware Maintenance Manuals - ThinkPad, find Family: i Series 1200, 1300, ThinkPad 130 i Series 1400, 1500 (2611) i Series 1400, 1500 (2621).
ThinkPad 240, thinkPad 240X, thinkPad 380, 385, 560, 760, 765.
Mobile Intel Pentium NEW!
Memory slot failure, the T30 has a design flaw that results in one of the two memory slots failing over time.
Kernel Panic Installing a 1 GB memory module may cause a Linux kernel panic on boot.