Computer shutting down unexpectedtly
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From: Nobody on 10 Apr 2008 02:09 Can someone give me a check list to help me solve why my computer is shutting down without warning. I have had the 550W power supply checked on another computer with similar load and it is okay. The shutdown can be during post pup to a a few minutes after windows XP SP2 has completely loaded. ECS KN1 SLI Extreme motherboard Nvidia 8800GT dual dvi 2GB ram C: boot D: additional E: CD/DVD recorder F: DVD recorder G: Scratch disk K: Raid disks (2) I have all Windows updates and cleaned out temp files. Kaspersky AV always running and have hardware motherboard firewall as well as cable modem router.All fans are running. regards, Beemer
From: Paul on 10 Apr 2008 02:29 Nobody wrote: > Can someone give me a check list to help me solve why my computer is > shutting down without warning. I have had the 550W power supply checked > on another computer with similar load and it is okay. > > The shutdown can be during post pup to a a few minutes after windows XP SP2 > has completely loaded. > > ECS KN1 SLI Extreme motherboard > Nvidia 8800GT dual dvi > 2GB ram > C: boot > D: additional > E: CD/DVD recorder > F: DVD recorder > G: Scratch disk > K: Raid disks (2) > > I have all Windows updates and cleaned out temp files. Kaspersky AV always > running and have hardware motherboard firewall as well as cable modem > router.All fans are running. > > regards, > > Beemer > Enter the BIOS. Go to the hardware monitor page. Check the CPU temperature. Is the temperature rising ? Is it getting so high that the machine shuts off ? If the CPU heatsink is not making good contact, that could be a reason for a high temperature. If the suspect motherboard had an internal short, resulting in more than normal current being drawn, that might give the perfectly-fine power supply a reason to shut off. Paul
From: GT on 10 Apr 2008 07:44 "Paul" <nospam(a)needed.com> wrote in message news:ftkc42$r3k$1(a)aioe.org... > Nobody wrote: >> Can someone give me a check list to help me solve why my computer is >> shutting down without warning. I have had the 550W power supply >> checked on another computer with similar load and it is okay. >> >> The shutdown can be during post pup to a a few minutes after windows XP >> SP2 has completely loaded. >> >> ECS KN1 SLI Extreme motherboard >> Nvidia 8800GT dual dvi >> 2GB ram >> C: boot >> D: additional >> E: CD/DVD recorder >> F: DVD recorder >> G: Scratch disk >> K: Raid disks (2) >> >> I have all Windows updates and cleaned out temp files. Kaspersky AV >> always running and have hardware motherboard firewall as well as cable >> modem router.All fans are running. >> >> regards, >> >> Beemer >> > > Enter the BIOS. Go to the hardware monitor page. Check the CPU > temperature. Is the temperature rising ? Is it getting so high > that the machine shuts off ? Another reason for shutdown by the BIOS would be the CPU fan - if it is stopping or going under a speed threshold, then the BIOS might be set to shutdown to avoid damage.
From: Clark on 10 Apr 2008 10:02 Nobody wrote: > Can someone give me a check list to help me solve why my computer is > shutting down without warning. I have had the 550W power supply checked > on another computer with similar load and it is okay. > > The shutdown can be during post pup to a a few minutes after windows XP SP2 > has completely loaded. > > ECS KN1 SLI Extreme motherboard > Nvidia 8800GT dual dvi > 2GB ram > C: boot > D: additional > E: CD/DVD recorder > F: DVD recorder > G: Scratch disk > K: Raid disks (2) > > I have all Windows updates and cleaned out temp files. Kaspersky AV always > running and have hardware motherboard firewall as well as cable modem > router.All fans are running. > > regards, > > Beemer > > > > > If you have a chance, check the event viewer for problems. Try booting in safe mode. Clark
From: kony on 10 Apr 2008 17:59
On Thu, 10 Apr 2008 06:09:52 GMT, "Nobody" <Nobody(a)nowhere.com> wrote: >Can someone give me a check list to help me solve why my computer is >shutting down without warning. I have had the 550W power supply checked >on another computer with similar load and it is okay. How similar a load? Things like a couple more hard drives and the gaming video card can be significant enough difference in load to have an effect. > >The shutdown can be during post pup to a a few minutes after windows XP SP2 >has completely loaded. Since there is this variability, it seems unlikely it would be something overheating... if the heatsink weren't on good enough to even allow it to finish posting, it wouldn't magically make a good enough contact other times to boot windows, unless you had a very strange environment where the ambient temp plunged very low on occasions where it'd boot windows. If you have a hardware monitoring software installed, check it for shutdown settings/thresholds. That's certainly not what's shutting it down before windows even loads, but as with bios, software could cause this given the same problem whatever it may be. Try leaving the system sitting in the bios hardware monitoring/health menu, watching temps/voltages/fan-RPMs, and see if it will just sit there at the bios menu indefinitely or if it still shuts down, and if/when it shuts down if any of the things you're watching have significantly changed. You didn't mention what make, model, and ratings for 12V power your PSU has. Offhand I would still suspect the PSU is insufficient. What exactly do you have to do to get the system running again when it shuts down (I assume shut down means completely off, no fans or anything running, correct?)? Can you press the case front switch or must you flip the PSU rear switch (If so equipped) or unplug it from AC? > >ECS KN1 SLI Extreme motherboard >Nvidia 8800GT dual dvi >2GB ram >C: boot >D: additional >E: CD/DVD recorder >F: DVD recorder >G: Scratch disk >K: Raid disks (2) > >I have all Windows updates and cleaned out temp files. Kaspersky AV always >running and have hardware motherboard firewall as well as cable modem >router.All fans are running. All fans may be running but if any are running slower than (very roughly) 1000 RPM then the motherboard may have trouble detecting them. If this were the case then you could temporarily unplug any fans in question to see if the system immediately shut down. Nothing will overheat enough to matter by having the fan unplugged for such a short period, you can just power off the system to more safely take your time to plug the fan back in. It's not windows, not files or any kind of added data problem, that would not have any effect on a system that was turned off, then powered on, since it hasn't loaded any of that data from the hard drive yet when it boots - since it sometimes shuts down before then. One way to check whether the PSU is overtaxed would be to temporarily put a less power hungry video card in, and reduce number of hard drives and other things not critical to running windows for a short test whether the shutdown problem is lessened. You didn't tell us the frequency at which it occurs. Once a month? Every 2 minutes? Inspect the motherboard for failed capacitors, and if nothing else seems to help, leave PSU unplugged from AC for a few minutes then open and inspect it as well (unless doing so would void a warranty still in effect). |