ICH4
The ICH4 was Intel's southbridge for the year 2002. The most important innovation was the support of USB 2.0 on all six ports. Sound support was improved and corresponded the newest AC'97 specification, version 2.3. Like the preceding generation, the ICH4 had 421 pins.
This has the following variants:
- 82801DB (ICH4) Base
- 82801DBM (ICH4-M) Base Mobile
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