Re: New Hd Install - No Udma Support, Dma 2 Only
- From: Chris Hill <chill_mapsfree_000@xxxxxxxxxxxxxx>
- Date: Tue, 11 Jul 2006 08:36:50 -0500
On 10 Jul 2006 22:34:06 -0700, "Cheffy" <jshabaga@xxxxxxxxx> wrote:
Hi all,
I recently purchased a diamondmax ultra 16 250 gb hd, and installed it
as a second HD as a master on the secondary ide channel using the cable
provided (80 wire) and the maxblast software. The drive works, but
responds only in multi-word dma 2 mode.
My boot drive, a 20 gb maxtor fireball, functions fine in UDMA 5. I
have a 1.5 GHz P4, SiS motherboard, running win XP pro. My AMI bios
sets and recognises the 250 gb hd as UDMA 6, but windows only allows
multi-word dma 2, despite the other HD set as UDMA 5. It would appear
that a miscommunication between the bios and XP is occurring.
Contacting maxtor gave no useful info.
I've tried uninstalling the primary and secondary channels and letting
windows reinstall it, updating my IDE drivers, altering registry values
to force it into UDMA ( and under device manager dma if available is
selected. NO dice. I have AMI bios that autoselects for UDMA so it
cannot be manually adjusted, but udma is recognised.
The 20 gb drive under the primary ide channel as a master, and the 250
gb drive as the secondary master. Changing the 250 gb drive to the
primary slave or master still keeps the multi-word dma 2 mode. Changing
cables makes no difference.
I tested the HD using the powerblast software, no problems, used other
freeware, no problems noted. But the transfer rate remains consistently
low at 16.4 mb/s, no ups, no downs. It's obvious that the restriction
in performance is due to it's inability to use UDMA instead of
multi-word dma 2.
I don't want to do a clean install of XP because of the time involved
with updates and making configuration changes. I've read in forums the
problem may be linked to the ESCD and that clearing it may solve the
problem, but I'm not certain about doing this. Would installing an
additional IDE controller card and forcing a new channel help? This is
very frustrating, because there appears to be NO good reason why it
does this. I've found two other people through usegroups that have had
the same problem, but the posts were old and no solutions noted other
than a clean install of xp for one person. If a clean install helps,
there must be a way to change the configurations somewhere.
I am out of ideas. PLease help!
Clearing the escd won't likely hurt anything, nothing to be uncertain
about, just try it. The 20gb drive is way to close to end of life for
me to want to trust it, why haven't you used ghost or something to
copy it over to the new drive? Throw it away before it dies.
.
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