are u try w/o JEMM* ? JEMM* is not compatible with 9x, even if DOS 7 normally work.
as i see on google, Thinkpad T410 is too MODERN machine for 9x:
- it is ACPI machine with too new ACPI standart version for 9x = many potencial problems with PnP and PCI subsystem of 9x.
- have too many RAM, cause many problems, which not fully solved with PATCHMEM (possible bad memory layout).
- use SATA or even AHCI mode for disk = need Rloew SATA patches, and AHCI driver (and latest Sweetlow patches for both).
- have EHCI mode USB cntrs only = need USB20 stack from ME/2K/XP (and patches by Sweetlow).
- have external graphical chip Nvidia Quadro, and there no drivers for 9x, except VBEMP.
and also it is NOTEBOOK, what mean possibility other problems, often completely unexpected...