Hi I hope someone can help me with this issue. It seems that there are clock slippages due to overworked CPU with heavy load. I am getting these errors with 2 or 3 channels only. On closer inspection, it seems that the server (dell 1950) is using only 1 CPU. The interrupts show that the other CPU's are hardly being used. (see the cat/proc/interrupts below). my gut feeling is that the APIC is not working as it should. Would changing irq's in the bios help this issue? I am running Centos 5.5 Any suggestions will be appreciated. Thanks in advance Clive # cat /proc/interrupts CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7 0: 782410882 0 0 0 0 0 0 0 IO- APIC-edge timer 1: 2 0 0 0 0 0 0 0 IO-APIC- edge i8042 8: 1 0 0 0 0 0 0 0 IO-APIC- edge rtc 9: 0 0 0 0 0 0 0 0 IO-APIC- level acpi 12: 4 0 0 0 0 0 0 0 IO- APIC-edge i8042 14: 238 194 0 0 7005401 15210 0 0 IO-APIC-edge ide0 66: 23 0 0 0 0 0 0 0 IO- APIC-level ehci_hcd:usb1, uhci_hcd:usb2, uhci_hcd:usb4 74: 0 0 0 0 0 0 0 0 IO-APIC- level uhci_hcd:usb3 82: 5426 137633 0 147604 1635602 0 0 0 IO-APIC-level megasas 90: 6118176 0 0 0 0 0 0 0 PCI-MSI eth0 98: 3457897 0 0 0 0 0 0 0 PCI-MSI eth1 NMI: 6258 2735 3482 3453 3253 2513 3379 2652 LOC: 782410253 782410193 782410118 782410043 782409968 782409893 782409818 782409736 ERR: 0 MIS: 0 ____________________________________________________________ South Africas premier free email service - www.webmail.co.za Save on insurance with OUTsurance https://www.outsurance.co.za/insurance-quote/?source=webmailmailer&cr=genp11...