Microsoft KB Archive/156357

= Windows NT Pauses During Startup with Adaptec 1542CP =

Article ID: 156357

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 3.5
 * Microsoft Windows NT Server 3.51
 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Windows NT Workstation 3.5
 * Microsoft Windows NT Workstation 3.51
 * Microsoft Windows NT Workstation 4.0 Developer Edition

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This article was previously published under Q156357



SYMPTOMS
When you use an Adaptec 1542CP in a computer running Windows NT Server or Workstation, Windows NT may pause during startup for up to 5 minutes. Event Viewer may indicate Event Id 9 - "Device\SCSIportX did not respond within the timeout period."



CAUSE
This error can be caused by a setting in the computer's BIOS.

The setting in question may be First available interrupt and contain a numeric value. This setting determines what IRQs are available to the computer's PCI devices. Other BIOS manufacturers use Reserved by ISA to deny PCI devices access to those specified interrupts.

With Plug and Play disabled on the Adaptec 1542CP (which is the desired setting when using this controller with Windows NT), the default interrupt chosen by the controller is IRQ 10. If any PCI devices attempt to use this IRQ (based on the BIOS setting for available interrupts), you may experience the above symptoms.



RESOLUTION
Ensure that any available interrupts are NOT equal to the IRQ setting of the Adaptec controller. If your BIOS uses the Reserved by ISA scheme of interrupt control, then ensure the BIOS has reserved the Adaptec's IRQ setting as Reserved by ISA.

Additional query words: 1542 CP hang fail wait slow install installation SCSI controller add device port

Keywords: kbsetup KB156357

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