Dazed and confused - unknown system restart

Question

Hi,I've got some bizzare & annoying problem in some of our servers.All other servers dont have this unknown restart issue. Only the PPPoEservers restart. When it restarts, it shows this message: "kernel: Dazed and confused, but trying to continueDo you have a strange power saving mode enabled?"I did searches on google, didn't find anything regarding this issue,but i found few similar searches; there were unknown solutions forthis. Some showed that it was something to do with the RAM, but ichecked that, it doesn't have anything to do with it.The pppoe servers are "IBM eserver xSeries 336"The specifications of these servers:CPU: 1 x86_64 3.0Ghz processors (Cache: 1024 KB) Intel XeonNetwork: (2X) Broadcom Corporation NetXtreme BCM5704 Gigabit Ethernet PCINetwork: (2x) Broadcom Corporation:NetXtreme BCM5721 Gigabit EthernetSCSI: LSI Logic / Symbios Logic 53c1030 PCI-X Fusion-MPT Dual Ultra320SCSICDROM: HL-DT-STDVD-ROM GDR8083NGraphic Card: ATI Technologis Inc Radeon RV100 QY (Radeon 7000/VE)USB: (2x) Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI ControllerStorage Device: (2x) Intel Corporation 82801EB (ICH5) SATA Controller (each 36.4)RAM: 3GBthe kernel version of Fedora Core 4: linux version 2.6.15-1.1833_FC4smp([e-mail]) (gcc version 4.0.2 20051125 (RedHat 4.0.2-8) ) #1 SMP Wed Mar 1 23:56:51 EST 2006Well thanks, hope there is a quick solution for this.thanks