Just on the off chance people look for this problem via Google (Vista hangs
or freezes from time to time) I think I've cracked both problems I've
The readyboost problem seems to have been a hard disk error - I ran chkdsk
/r and it identified an error in one of the readboost files, and since then
it's been fine.
The problem with Vista hanging for 20-30 seconds every once in a while is
much more widely known - googling it gets loads of results, but I'm fairly
confident I've cracked it (on my system in any case).
The problem seems to be with the nVidia nForce driver (or controller) - when
I finally started digging through my event log, I found loads of these:
Log Name: System
Event ID: 129
Task Category: None
Reset to device, \Device\RaidPort0, was issued.
<Provider Name="nvstor64" />
<TimeCreated SystemTime="2007-05-28T18:49:29.084Z" />
<Binary>0F0018000100000000000000810004800400000000 00000000000000000000000000000000000000000000000000 000000000000810004800000000000000000</Binary>
Googling turned up (only!) one hit on this
their solution works a treat:
Disable Native Command Queueing on the SATA drive, and the problem is
solved. The explanation that disabling NCQ also improves performance strikes
me as not necessarily correct, but I haven't noticed any performance issues,
and I've now recorded Ocean's 11 off my TV card without a single bluescreen
(whereas before I'd get them every few minutes).
I hope this is helpful to others - it's definitely improved my computing
> One additional bit of information (in case it's useful) - Process explorer
> finds the following thread using 50% CPU time (1 full core!) on one of the
> service host processes:
> "AJR" wrote:
> > There is a ReadyBoost cache on the HD whether or not you have an external
> > device and is used primarily for non-sequential read/write to the HD.
> > Turning off the service reduces CPU usage (mostly during "idle" time),
> > however depending upon what activity is going on performance will probably
> > suffer.
> > "E-" <Eemail@example.com> wrote in message
> > news:0CED13CD-4036-4F54-929F-CE3F2CAFC388@microsoft.com...
> > > Hi,
> > >
> > > For the past couple of days, I've noticed my CPU usage is very high at
> > > idle
> > > (>50% on one core of my Athlon64x2).
> > >
> > > I finally got annoyed enough to try to work out what it was, and it turns
> > > out it was the readyboost service (I used task manager and the process
> > > explorer). This is odd, because I don't have any USB drives attached to
> > > the
> > > system. What's stranger is that it happened at every boot, and I was
> > > unable
> > > to stop the service while it was running.
> > >
> > > I've now disabled the service at startup, and we're back to normal CPU
> > > utilisation levels.
> > >
> > > Does anyone have an idea as to what could be causing this?
> > >
> > > Thanks,
> > >
> > > Edwin