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X40 with non-working USB ports

X2/X3/X4x series specific matters only
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X40 with non-working USB ports

#1 Post by Lockheed » Sat Dec 10, 2016 4:16 am

I got two X40s with latest bios. The problem is, that one of them behaves like it has no USB ports at all. They cannot be selected as boot device in BIOS when there is a USB stick or ThinkPad USB DVD drive plugged in, neither do they function within OS. Linux lists 4 ports, but no device is being detected with lsusb when plugged in. The same is true for Windows XP.

What's more, even if I put this X40 in a docking station, its USB ports are equally ignored.

Is this a faulty motherboard, or could there be some arcane ThinkPad setting that is causing this? I think I went through every setting in BIOS, but I read there is some windows software called something like "ThinkPad Configuration utility" - could someone disable USBs within it in WIndows, and now they are off?
T420s - i7, 16GB RAM, Samsung 850 EVO + 1TB Hitachi 9.5mm, Nvidia, Oleh Bios.
W500 - C2D P9500, 8GB RAM, Samsung 830 SSD + 750GB Hitachi HDD, Intel+ATI GPU, bright WUXGA, FP-reader
Arch Linux, BTRFS+ZFS on LUKS

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Re: X40 with non-working USB ports

#2 Post by Neil » Sat Dec 10, 2016 8:21 am

Yes, it's a faulty system board. Likely the USB controller chip has failed. My X40 is in the same condition, and it's fairly common failing, though certainly does not affect all X40 systems.

My solution, for a few years now, has been to put a USB adapter in the CardBus slot. But, one cannot boot from such an adapter. For boot options I am fortune to have an Ultra Base with optical drive.
Collection = T430 - T500 - R400 - X300 - T61 (14" WXGA+) - R61 (15" SXGA+) - X40 - T43p - T43 - T42p - A30P

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Re: X40 with non-working USB ports

#3 Post by axur-delmeria » Sat Dec 10, 2016 1:15 pm

Thinkwiki article regarding this issue.
Daily driver: X220 4291-C91 i7-2620M

Backup: X220 4291-P79 i5-2520M
Toy: X60F Core Solo U1300
In pieces: two retired but working X61Ts
RIP: 760XD 9546-U9E; X61 7676-A24; and a BOE-Hydis HV121P01-100 in failed SXGA+ mod

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