Re: New Hd Install - No Udma Support, Dma 2 Only

I've reset the config data in BIOS several times, currently set to
autodetect upon boot (previously set). I will look into the clearing
CMOS - how does this differ from clearing the ESCD?


JAD wrote:
"Cheffy" <jshabaga@xxxxxxxxx> wrote in message
news:1152625222.780212.18290@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
I've tried the HD on both the primary and secondary channels, as a
slave to the other HD and as an independant device, and with or without
my burner attached. Seems to make no difference. I thought for a
spell it might be confusing the HD with the burner, but even the burner
was listed as UDMA 5 (oddly enough). No, I'm not confusing devices
between the burner and HD under device manager ;)

I was more in the line of thinking that the optical were pulling down the
UDMA numbers when attached to the same channel. It hasn't happened to me for
some time now but I thought it was a outside chance. Reset the configuration
data or short the cmos jumper and let the system redetect the hardware. UDMA
5 on a optical? I have yet to see that high of a number on an optical drive.
It seems that the board is not detecting devices properly.



JAD wrote:
"Cheffy" <jshabaga@xxxxxxxxx> wrote in message
news:1152596046.387760.86510@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
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.

The hard drives are the only device on the channel?



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!



.

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