Slow boot up - Caused by internal USB

Question

Often (not allways) my computer uses an abnormal amount of time  before booting up.
It stops on post for about 20-30 sec at the very start (right before memory messages apperas with RAM size and timings).
Info about my memory stics (supported by Neo2);
Enhets beskrivelse
DIMM1: GeIL CL25-3-3DDR 400
DIMM2: GeIL CL25-3-3DDR 400
General
Memory type      DDR-SDRAM
Manufacturer (ID)   GEIL (7F7F7F1300000000)
Size         512 MBytes
Max bandwidth      PC3200 (200 MHz)
Part number      CL25-3-3DDR 400
Serial number      20020725
Manufacturing date   Week 255/Year 255
Attributes
Number of banks      2
Data width      64 bits
Correction      None
Registered      no
Buffered      no
Timings table
Frequency (MHz)      166   200   
CAS#         2.0   2.5   
RAS# to CAS# delay   3   3   
RAS# Precharge      3   3   
TRAS#         5   6   
DIMM #2
General
Memory type      DDR-SDRAM
Manufacturer (ID)   GEIL (7F7F7F1300000000)
Size         512 MBytes
Max bandwidth      PC3200 (200 MHz)
Part number      CL25-3-3DDR 400
Serial number      20020725
Manufacturing date   Week 255/Year 255
Attributes
Number of banks      2
Data width      64 bits
Correction      None
Registered      no
Buffered      no
Timings table
Frequency (MHz)      166   200   
CAS#         2.0   2.5   
RAS# to CAS# delay   3   3   
RAS# Precharge      3   3   
TRAS#         5   6   

Answer 1

If you are having problems with USB ports, read this topic.
also i would never have one in the box when installing xp on RAID
as ive seen xp write the mbr to stranger things than a card in one