Device\Scsi\Aic78u21 did not respond within the timeout peri

lager_brains · April 19, 2001

Please can anyone help me solve this problem.

I am convinced my scsi devices are not operating as quickly as they used to when I first bought this machine (2 years ago).

Dual PIII 500Mhz,

512Mb Ram,

Supermicro P6DGBU (onboard Adaptec SCSI controller 2940, AHA-2940U2/U2W),

Seagate Cheetah 9Gb SCSI (ST39102LW)

Seagate Cheetah 18Gb SCSI (ST318203LC)

Plextor PX-40TS SCSI Cd-rom,

Yamaha CRW4416S SCSI Cd-rom,

Epson Expression SCSI Scanner,

W2K, SP1,

NT4, SP6a,

2 fans.

I've noticed that when there are cds in one or both drives, then on startup the machine takes longer to identify the SCSI ids for all the devices.

Any idea why I get loads of these messages in Event Viewer;

"The device, \Device\Scsi\aic78u21, did not respond within the timeout period. "

(Event ID9).

"An error was detected on device \Device\Harddisk1\DR1 during a paging operation. " (Event ID51).

"The device, \Device\CdRom0, has a bad block. " (Event ID7).

I run Diskeeper frequently (not that I am convinced that this does much).

Any help or pointers in the right direction would be much appreciated.

Many Thanks,

Jez

Etheric · April 20, 2001

I'm having the same problems.

I have an Adaptec 2940U2W card, 2 Quantum Viking II 7200rpm SCSI HDDS, a Plextor 32X UltraPlex SCSI, and a Yamaha 16x SCSI.

Hope there is a solution! Please email me if there is one

Etheric

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