hi list, I'm experiencing strange problem. My system freezes at random intervals, generally after 15 to 30 min of heavy workload (for instance massive ftp transfer on LAN, or use of Xdvdshrink tools). What I've noticed when trouble occurs, is that the daemon kacpid start to run at 99% of one CPU/core, while the other CPU is still busy to the original task it was assigned to...When this occurs, I still can move the mouse to the graphic env. but within a minute delay the box totally hangs, and reset is the only solution... Nothing written in logs after reset! Anybody has clues, pointers, explanation ? My config: TYAN K8E, bios 2.01 AMD 4400 X2 dual-core 2 corsair 512MB 2-2-2-5 dimms in dual mode (memtest86+ says 2250MB/sec, no error) 3 SATA drives: WDC Raptor 36G (sata1), WDC 80G 7200 rpm on sata 2 and 3 with linux softraid 0 (thru evms) 1 dvd writer pioneer 110 on pata 1 master ethernet active on Broadcom chip (can't configure Nvidia eth with forcedeth driver) suse 9.3 with 2.6.11.4-21.9 smp kernel many thanks in advance, fabrice