Archived from groups: microsoft.public.windowsxp.hardware (
More info?)
I am positive I saw UDMA 6 when i first installed sp2
but after that the hdd becomes exteremly slow due errors log on system event
viewer and then it only runs on PIO
I believe its a compatibility issue since microsoft had similar issues prior
to sp2 when they posted a hotfix i posted KB# in my 1st post.
I wouldnt mind running on UDMA5 however sp2 acts differently and it only
allows PIO like i decribed before.
if you know i can send this info to microsoft please give me an email or
address.
Thanks alot for your concern.
"Nathan McNulty" wrote:
> Actually, you won't hit higher than UDMA 5 unless you are in RAID. If
> you were to use Everest Home from www.lavalys.com, you would most likely
> see that your computer is currently running in DMA Mode 5 and supports a
> max of DMA Mode 6. The internal speed of a disk is around 60-70 MB/s.
> Most drives don't even perform at UDMA 66 speeds (although there are
> bursts that reach over that speed).
>
> ----
> Nathan McNulty
>
>
> Nospam wrote:
> > bazzoola,
> >
> > I'm running Serial ATA 150 drives with an Albatron PX865PE Pro Ver 2 mobo
> > and they are indicated to be in UDMA 5 mode. I *think* that's the maximum
> > it'll show in XP due to Windows shell design unless someone corrects me on
> > this (and I'd be grateful also if there's a fix to it so the absolute
> > correct UDMA value is shown).
> >
> > Nospam
> >
> > "bazzoola" <bazzoola@discussions.microsoft.com> wrote in message
> > news:07F237B0-D850-4F99-95EA-6AA10D03304E@microsoft.com...
> >
> >>after testing this problem for two days and reinstalling the OS several
> >>times
> >>it seems that SP2 deals differently with my atapi and ide drives
> >>and it is causing instability.
> >>
> >>when using SP1 my hdd runs on UDMA mode 5 which is ata100
> >>although the hdd and the motherboard supports ata133
> >>i am guessing that sp1 does not go beyond mode 5
> >>however after installing sp2. at first the hdd runs on UDMA mode 5 which
> >>is
> >>ata133 but then after few reboots i get many errors in the event log then
> >>it
> >>downgrades the hdd to PIO and doesnt go back unless i uninstall the driver
> >>
> >>if anyone knows how to submit a problem like this to microsoft so they can
> >>look into it deeper please let me know.
> >>
> >>hard disk: Maxtor 6Y120P0
> >>motherboard: Gigabyte GA-8SD533 (SIS 645 chipset)
> >>cable: 80 pins
> >>bios : tried using IDE on auto mode and on 66/100/133 ATA
> >>
> >>
> >>"bazzoola" wrote:
> >>
> >>
> >>>I noticed after upgrading to SP2 my Maxtor 6Y120P0 becomes extremely slow
> >>>(
> >>>running on PIO mode )
> >>>it took me a while to find out what caused this slow behavious however i
> >>>found similar symptoms in KB 817472
> >>>
> >>>which explains why windows XP SP2 acted way slower than SP1
> >>>I applied the temp solution explain in KB 817472 ( uninstalling IDE
> >>>controller driver ) but it seems that the problems keeps showing up again
> >>>and
> >>>again
> >>>
> >>>right now i applied some registery modification by setting
> >>>ResetErrorCountersOnSuccess to 1 in
> >>>HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E96A-E325-11CE-BFC1-08002BE10318}\000x
> >>>
> >>>I hope this will fix the problem
> >>>i ll report back if anything new appears
> >>>
> >>>P.S. this problem never appeard previously it only showed up after
> >>>installing SP2
> >
> >
> >
>