Google these drivers to see what they are and try to find updates for them:
Rt86win7 Rt86win7.sys Thu Feb 26 04:04:22 2009
spldr spldr.sys Mon May 11 12:13:47 2009
amdxata amdxata.sys Tue May 19 13:57:35 2009
Also, so many machines run better and/or are fixed by adjusting the bios manually to the correct settings specific to the RAM modules running.
You can use the spd tab of CPU-Z
to find your exact RAM modules.
Then you could visit the maker's site for proper Vdimm (RAM voltage) and timings to be set.
I shouldn't tell you this, but I just got done tweaking to double my overclock shown in specs. Stable for a half hour or so now so we shall see as hours and days go. heh