Solved/Kinda: IDE Hard disk reverts from DMA to PIO, many thanks folks

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

From: G. Michael Askew (michael_at_nospamaskewonline.co.uk)
Date: 02/18/05 

Date: Fri, 18 Feb 2005 22:08:48 -0000

I tried the Maxtor on it's own, no other drives. Still the same problem,
PIO mode.

So then I tried connecting it to the secondary IDE controller.
Autodetected ok in BIOS, and booted up faster than it's ever done, and
it's working in DMA mode!! YAY!

Plugged the optical drives (CDRW as master, DVD-ROM as slave) in the
Primary IDE, and they work too....more or less.
On booting into Windows, it went through the "Detected New Hardware -
CDRW" and "Detected New Hardware - DVD-ROM" a few times while I had the
Device Manager open. It was as if it was redetecting them and they were
being lost.

The event log gave a code 11 error again, this time for the CDROM, "The
driver detected a controller error on \Device\CdRom1.".

At least the machine's running faster now, and in DMA mode, so Winamp and
Media Player shouldn't jitter anymore.
Obviously it's either the Primary IDE controller or the connector itself
faulty. Coincedentally the event log also shows a problem with the Serial
port COM1 on bootup too,
"Event ID 36: While validating that \Device\Serial1 was really a serial
port, the contents of the divisor latch register was identical to the
interrupt enable and the receive registers. The device is assumed not to
be a serial port and will be deleted."

Anyway, many thanks to all that helped!

> Make sure you have NO other drives of ANY kind connected to the
> computer.
> 

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