---
name: "cia"
section: "4"
platform: "openbsd"
package: "man"
version: "8.0-current-20261101"
release: "OpenBSD 8.0-current (2026-11-01)"
platforms: ["openbsd"]
url: "https://new.carta.tech/cia/4"
---

# cia(4)

DECchip 2117x Core Logic chipset

## NAME

**cia** – DECchip 2117x Core Logic chipset

## SYNOPSIS

**cia\* at mainbus?** **pci\* at cia?**

## DESCRIPTION

The **cia** driver provides support for the DECchip 2117x Core Logic chipset (PCI controller) found on the AlphaStation 500/600, AlphaServer 1000 and AlphaServer 800/1000A systems.

## SEE ALSO

[intro(4)](/intro/4.md), [pci(4)](/pci/4.md)