H136503 - SYSTEM HANGS & GPF'S IN WINDOWSNT W/ADAPTEC AVA-1515 SYMPTOM: Any IBM PC 300 or 700 Series system may exhibit the following error indications in systems running WindowsNT version 3.51 or higher and an Adaptec AVA-1515 SCSI adapter installed: 1) System hang condition with a General Protection Fault (GPF) during installation. 2) Network errors during file copying to the local hard file. 3) System hang condition during long idle periods. 4) System hang with a blue screen displaying version number, number of processors and memory size after the initial power-on following the WindowsNT installation. PROBLEM ISOLATION AIDS: None FIX: Microsoft WindowsNT v3.51 or higher does not support the Adaptec AVA-1515 SCSI adapter. Use the integrated IDE controller in the PC 300 or 700 system to install and run WindowsNT or upgrade to the Adaptec 2940 SCSI adapter. Adaptec AVA-1515 & Adaptec 2940 are trademarks of Adaptec, Inc. WindowsNT is a trademark of the Microsoft Corporation.