Lenovo 64608VU - ThinkPad T61 6460 Hardware Maintenance Manual page 236

Windows Vista Home Basic (32 bit) DVDs for R61i (some models)
Windows Vista Home Basic (32 bit) is preinstalled as the operating system in the
following models:
v 7732-CTO, 25x, 26x, 27x, 2Cx, 2Dx, 2Ex, 2Gx, 2Hx, 2Jx, 6Dx, 8Px, 8Qx, 8Rx, 8Sx,
v 7733-CTO
v 7734-CTO
v 7735-CTO
v 7736-CTO
v 7737-CTO
v 7738-CTO
v 7742-CTO, 24x, 25x, 27x, 28x, 9Gx, 9Hx, 9Kx, B3x, B6x, BAx, BBx, BCx, BDx, BEx,
v 7743-CTO
v 7744-CTO
v 7751-CTO
v 7753-CTO
v 7754-CTO
v 7755-CTO
228
ThinkPad T61, R61, and R61i (14.1-inch widescreen) Hardware Maintenance Manual
8Tx, 8Ux, 8Vx, 8Wx, 8Yx, 9Ax, 9Cx, 9Dx, 9Ex, BFx, BGx, BHx, BJx, BKx, C1x,
C4x, CBx, CDx, CGx, CHx, CJx
BFx, BGx, BHx, BJx