interrupt problem with MPS 1.4 / not with MPS 1.1 ?

Hardware:

Abit VP6 (Via 694x) x86/SMP motherboard
with USB controller

If I set the bios for MPS 1.1, USB runs fine. If I set the bios
for MPS 1.4, I get this:

May 31 13:08:06 middle kernel: hub.c: USB new device connect on bus1/1, assigned device number 4
May 31 13:08:09 middle kernel: usb_control/bulk_msg: timeout
May 31 13:08:09 middle kernel: usb.c: USB device not accepting new address=4 (error=-110)
May 31 13:08:09 middle kernel: hub.c: USB new device connect on bus1/1, assigned device number 5
May 31 13:08:12 middle kernel: usb_control/bulk_msg: timeout
May 31 13:08:12 middle kernel: usb.c: USB device not accepting new address=5 (error=-110)
May 31 13:08:12 middle kernel: hub.c: USB new device connect on bus1/1, assigned device number 6
May 31 13:08:15 middle kernel: usb_control/bulk_msg: timeout
May 31 13:08:15 middle kernel: usb.c: USB device not accepting new address=6 (error=-110)
May 31 13:08:16 middle kernel: hub.c: USB new device connect on bus1/1, assigned device number 7
May 31 13:08:19 middle kernel: usb_control/bulk_msg: timeout
May 31 13:08:19 middle kernel: usb.c: USB device not accepting new address=7 (error=-110)
May 31 13:08:19 middle kernel: hub.c: USB new device connect on bus1/1, assigned device number 8
May 31 13:08:22 middle kernel: usb_control/bulk_msg: timeout
May 31 13:08:22 middle kernel: usb.c: USB device not accepting new address=8 (error=-110)
May 31 13:08:22 middle kernel: hub.c: USB new device connect on bus1/1, assigned device number 9

Now I understand this mail doesn't have all the necessary info, but my
question is:

What information would be necessary to debug this?

dmesg
/var/log/messages
lspci -vv (or -x?)

or more?

Jurriaan
-- 
BOFH excuse #57:

Groundskeepers stole the root password
GNU/Linux 2.4.5-ac4 SMP/ReiserFS 2x1402 bogomips load av: 0.41 0.11 0.03