But that battery is used when the system is turned off to keep the systems clock running, issues have been seen before CMOS batteries. the best thing to do to troubleshoot this problem is to leave the system in bios, and watch the clock ticking. If it still acts up in bios you definitely have a hardware failure, in which situation you need to contact your hardware vendor and insist on a replacement battery and or motherboard. A bios flash would also be interesting, but chances are the manufacturer will request this anyway. Hope this helps! Andrew

What sort of motherboard do you have? What sort of hard drives and CDs, and how are they connected?

Does it make any difference how busy the system is? What happens if you leave it doing nothing for an hour? (Try running init 1 to really shut down background processes).

Can you do a couple of "cat /proc/interrupts"es on a really quiet system, say five minutes apart?

Can you get hold of a DOS boot disk? Does the same thing happen in DOS? (Try www.freedos.org if necessary).

On Thu, 2004-07-29 at 10:43, Gang Qin wrote: >The problem is there is no problem if the system is power-off. And also >there was no problem before I changed from RH9 to FC2 one week ago. >Maybe you could help me to figure out what is wrong. From 'cat >/proc/interrupts' I can see 'ERR 5', maybe there is some clue? I am >attaching some information at the end of this email, thanks. > >Gang > > > >Andrew_Morgan(a)Dell.com wrote: > > > >>But that battery is used when the system is turned off to keep the >>systems clock running, issues have been seen before CMOS batteries. the >>best thing to do to troubleshoot this problem is to leave the system in >>bios, and watch the clock ticking. >> >>If it still acts up in bios you definitely have a hardware failure, in >>which situation you need to contact your hardware vendor and insist on a >>replacement battery and or motherboard. >> >>A bios flash would also be interesting, but chances are the manufacturer >>will request this anyway. >> >>Hope this helps! >> >>Andrew >> >> >> >> >James Wilkinson wrote: > > > >>What sort of motherboard do you have? What sort of hard drives and CDs, >>and how are they connected? >> >> >> >It is a hp pavilion ze4400 (or compaq presario 2100) with Mobile >Intel(R) Celeron(R) CPU 2.20GHz, inner QSI CD-RW/DVD-ROM SBW-241, >inner ATA DISK drive 5400 40G > > > >>Does it make any difference how busy the system is? What happens if you >>leave it doing nothing for an hour? (Try running init 1 to really shut >>down background processes). >> >> >> >> >After init 1, I found my system clock only passed 31 min for an hour. > > > >>Can you do a couple of "cat /proc/interrupts"es on a really quiet >>system, say five minutes apart? >> >> >> >> >results of "cat /proc/interrupts" are in the bottom. > > > >>Can you get hold of a DOS boot disk? Does the same thing happen in DOS? >>(Try www.freedos.org if necessary). >> >> >> >> >> >There were no problem before I change from RH9 to FC2. The FC2 is a >fresh installation. I may try the freedos later. Thanks. > > >cat /proc/interrupts > CPU0 > 0: 2763867 XT-PIC timer > 1: 1064 XT-PIC i8042 > 2: 0 XT-PIC cascade > 5: 1 XT-PIC ALI 5451 > 8: 1 XT-PIC rtc > 9: 746 XT-PIC acpi >10: 1067 XT-PIC ohci_hcd, eth1, eth0 >11: 5 XT-PIC yenta >12: 38676 XT-PIC i8042 >14: 20840 XT-PIC ide0 >15: 1149 XT-PIC ide1 >NMI: 0 >ERR: 5 >[root@pc3 oo]# cat /proc/interrupts > CPU0 > 0: 3171884 XT-PIC timer > 1: 1070 XT-PIC i8042 > 2: 0 XT-PIC cascade > 5: 1 XT-PIC ALI 5451 > 8: 1 XT-PIC rtc > 9: 795 XT-PIC acpi >10: 1467 XT-PIC ohci_hcd, eth1, eth0 >11: 5 XT-PIC yenta >12: 38676 XT-PIC i8042 >14: 21097 XT-PIC ide0 >15: 1761 XT-PIC ide1 >NMI: 0 >ERR: 5 >[root@pc3 oo]# cat /proc/interrupts > CPU0 > 0: 3604642 XT-PIC timer > 1: 1076 XT-PIC i8042 > 2: 0 XT-PIC cascade > 5: 1 XT-PIC ALI 5451 > 8: 1 XT-PIC rtc > 9: 848 XT-PIC acpi >10: 1753 XT-PIC ohci_hcd, eth1, eth0 >11: 5 XT-PIC yenta >12: 38676 XT-PIC i8042 >14: 21305 XT-PIC ide0 >15: 2409 XT-PIC ide1 >NMI: 0 >ERR: 5 > > Have you tried booting with the noapic kernel option (or one of the other related kernel parameters)? As indicated in one of the earlier responses: Check for and install the latest BIOS update, as well. It's interesting that ~30 minutes are lost in an hour. Bob...