SiS648 Problems

Hi,

we got some Elitegroup P4S8AG Boards here, featuring SiS648/SiS963 Chipsets. They work fine as far as it comes to the onboard SiS900 onboard lan/network PCI cards.
No matter what kernel version (we tried 2.4.20, 2.4.20-ac2, 2.4.21-pre5-ac3) and no matter what network card (we tried some RealTek 8139C and the onboard card).
Using the onboard card the Kernel reports while trying to ping anything:
eth0: Unknown PHY transceiver found at address 1.
eth0: Using transceiver found at address 1 as default
eth0: SiS 900 PCI Fast Ethernet at 0xdc00, IRQ 10, 00:0a:e6:6e:cd:6a. NETDEV WATCHDOG: eth0: transmit timed out
eth0: Transmit timeout, status 00000004 00000249

We tried all possible BIOS settings like PnP OS off/on etc. No go.

Has anyone gotten this board successfully running with the onboard lan? I have seen these errors on some older boards, an update to the newest kernel usually fixed them, so i guess its something with the SiS648's PCIbus not beeing initialized correctly.

Cheers,
Jonas Frey