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Thread ID: 48186 2004-08-16 11:10:00 Pio Mode, Win XP / 2000 Kim! (6035) Press F1
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262293 2004-08-16 11:10:00 Below is an extract from an article (817472) in the MS Knowledge base listing fixes in service pack 2

Hopefully this will help those having PIO mode problems

Kim


817472 - IDE ATA and ATAPI Disks Use PIO Mode After Multiple Time-Out or CRC Errors Occur

Microsoft Knowledge Base Article - 817472

IDE ATA and ATAPI Disks Use PIO Mode After Multiple Time- Out or CRC Errors Occur

SYMPTOMS

After you suspending and resume your computer several times, hard disk performance may be reduced. If you use Device Manager to view the properties of the IDE channel to which the drive is connected, the Advanced Settings tab may show that the current transfer mode for the drive is "PIO Mode."

CAUSE

After the Windows IDE/ATAPI Port driver (Atapi.sys) receives a
cumulative total of six time-out or cyclical redundancy check (CRC) errors, the driver reduces the communications speed (the transfer mode) from the highest Direct Memory Access (DMA) mode to lower DMA modes in steps. If the driver continues to receive time-out or CRC errors, the driver eventually reduces the transfer mode to the slowest mode (PIO mode).

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Kim! (6035)
262294 2004-08-16 11:56:00 Oh, so this is included in SP2? Reckon it might help my 20Gb drive which gets stuck in PIO mode? ;)

Cheers.
kiki (762)
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