Are you getting a specific in your device manager?
Official drivers are available for Windows Server (up to 2012 R2), Windows 7, Windows 8, and various Linux distributions (RHEL, SUSE). 2. Microsoft Update Catalog
If Windows fails to find it, search the Microsoft Update Catalog manually for "Adaptec 1045." Technical Specifications for Installation adaptec asc-1045 driver download
Since Microsemi acquired Adaptec, all official legacy drivers are hosted on the Microsemi website. "Adaptec Series 1 controller drivers."
Are you trying to connect a or a hard drive array ? Are you getting a specific in your device manager
Locate the with a yellow exclamation mark. Right-click and select Update Driver Software .
If the system hangs during POST, enter the card's BIOS (usually Ctrl+A during boot) and disable the "BIOS Boot Support" if you aren't booting from the attached drives. Microsoft Update Catalog If Windows fails to find
When downloading drivers for enterprise hardware, always prioritize official manufacturer sources to avoid malware or corrupted files. 1. The Microsemi (formerly PMC-Sierra) Support Portal