PC with SIS1100-e/eCMC freezes/hangs at power up.
Reported by Marcus Fleck from DESY for a Fujitsu d3598-b13 mainboard initially.
Change the PCI Class ID from:
07h Simple Communications Device
06h Other Bridge device
You can use the PLXMON tool to do so, instructions can be found here.
SIS1100-e boards from serial number 1040 onwards are shipped with 06h by default.