Article ID: 214810 - View products that this article applies to.
This article was previously published under Q214810
In some instances, after the application of Service Pack 4, when the computer is restarted, it will do either of the following:
This problem occurs because the Aic78xx.sys driver chosen during the application of Service Pack 4 is not compatible with the computer's Adaptec SCSI controller.
This problem can be corrected by replacing the existing Aic78xx.sys driver, located in the %systemroot%\Winnt\System32\Drivers folder, with the Aic78xx.sys driver from the i386 directory within Service Pack 4.
Windows NT 4.0 Service Pack 4 contains the following Aic78xx drivers:
Aic78xx.sys 26,704 bytesTo determine which Aic78xx.sys driver is in use, and to copy the correct driver, depends upon the file system on the Windows NT boot partition (where %SystemRoot%\Winnt resides).
Aic78xx.001 56,272 bytes
If Windows NT resides on a FAT formatted partition, perform the following steps:
There are two different versions of the AIC78XX driver for the Adaptec 2940 and 7800 family of SCSI controllers included in Service Pack 4. The Aic78xx.sys file in Service Pack 4 is the same file that is in Service Pack 3. The Aic78xx.001 file of Service Pack 4 is only placed on the computer if %systemroot%\Winnt\System32\Drivers\AIC78xx.sys has a revision between x.x.1382.x and x.x.1420.x.
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