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PC shutdown and reboot automatically

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12 replies

by miraclemax

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I have a NEC Ready S125 AMD 450 mhz K6-2 with 256MB ram, 30GB maxtor hd with win98se.

When shutdown is selected it completes successfully. Then after about 3-5 seconds the PC reboots on its own. Any ideas on how to stop it?

I have checked the BIOS settings and all power settings are disabled. I checked all the pwr settings on the nic card and those are all disabled. I have checked the pwr settings in the control panel and those are all disabled. I have read thru the MS knowledge base item Q202633 regarding Fastshutdown and the registry item is set to '0' disabled. I have AVG 6.0 running and it hasn't found any viruses and AVG is up to date.

Any assistance would be greatly appreciated.

12 replies

by thechas

I assume that this is an ATX type system that Windows would 'normally' shut down when you select shutdown from the start menu.
I have had to go through a few of these myself.

First, check the front panel ON switch, and make sure with an ohm-meter that the contacts open and close.

What happens if you boot from a DOS floppy, and use the power button to shut the PC down?
(Usually hold the button in for 5 seconds.)

If it springs back up from a DOS boot, then it is not a Windows issue.Try a different power supply.
If it now shuts down, the 5 volt turn-on circuit in the power supply is the cause.
If it still boots, then the power control circuit on the motherboard is the likely suspect.

What I have found, is that over time dust builds up on the wires from the ON switch. When someone hits the button and is static charged, they discharge through the button into the turn-on circuit. Eventually, the circuit gets enough damage so that it keeps the PC on all the time.

Options:

Install a switch in the AC line, and shut off the AC when the PC shuts down.

Replace the motherboard.

Chas

by cg it

Yes on TheChas. My on/off switch sticks and I have to make sure it isn't sticking or my computer will automatically come on again after I shut it down.

by fenaikh

Hi

There are could be many reasons for this:

Software problem.
1. You have an app could not responed to windows "shutdown all now" requist which could be your anti virus or other app so try to close all running apps including the anti virus and the ones in the list of Alt+Ctrl + del. then try shut down.

apply the win98se patch
*** Warrning ************ Warrning *********
This is a one way action so backup your system first before you apply it. These files could be changed so you may need to backup them for a short cut return.You will also lose the lose the reliable "disable fast shutdown" option in MSconfig.
*** Warrning ************ Warrning *********

file list:

239887UP.inf, Setup Information, 8/17/99, 4:17PM, 2,623 bytes
qfecheck.exe, Application, 7/27/98, 3:48 PM, 36,864 bytes
Qfecheck.hlp,Help File, 2/9/96, 6:28 PM, 8,042 bytes
3675.cat, Security Catalog, 8/12/99, 1:26 PM, 5,903 bytes
CSETUP.exe, Application, 8/12/98, 9:32 PM ,16,896 bytes
MSConfig.exe Application, 8/11/99, 10:32 AM, 59,392 bytes
tshoot98.chm, Compiled HTML Help file, 7/22/99, 11:12 AM, 240,797 bytes
Pci.vxd, Virtual device driver, 8/11/99, 10:41 AM, 65,919 bytes
apmbatt.SYS, System file, 8/11/99, 10:46 AM, 4,384 bytes
239887UN.inf, Setup Information, 8/17/99, 4:17 PM, 1,632 bytes
configmg.vxd, Virtual device driver, 4/23/99, 10:22 PM, 125,057 bytes
ver_chk.inf, Setup Information, 8/12/99, 12:30 PM, 1,520 bytes
Advpack.dll, Application Extension, 7/15/97, 6:53 AM, 74,960 bytes
W95inf32.dll, Application Extension, 7/15/97, 6:53 AM, 4,608 bytes
W95inf16.dll, Application Extension, 7/15/97, 6:53 AM, 2,272 bytes

patch that's supposed to resolve the fast shutdown issues
http://www.microsoft.com/windows98/downloads/contents/WURecommended/S_WUFeatured/Win98SE/Default.asp

Over heating.
1. check this by using a free software MB5
2. check CPU fan and Power supply fan and vin

by fenaikh

sory 1930 char limit ...

Over heating.
1. check this by using a free software MB5
2. check CPU fan and Power supply fan and vintlation holes (use a air plower to clean the case) or change fan if they have problem.

Power source problem.
1. Bad source ( use a UPS) or bad power supply (slowly going down)

Note1:
***Very Important NOTE *********
After you copy the URL a space or a %20 maybe gets inserted in the URL when you paste it into your browser. Delete any spaces or such characters from the URL for the page to be loaded.
***Very Important NOTE *********

Good luck

Mohamed

by fenaikh

Motherboard Monitor (MBM) is a tool that will display information from the sensor chip on your motherboard in your Windows system tray. MBM supports a wide range of Chipsets & Sensor Chip combinations. MBM is compatible with Windows 95, 98, ME, NT, 2000, XP and .NET.

http://mbm.livewiredev.com/

by fenaikh

more ..

you may have a device driver problem, thenupdate the driver.
you may have devices that over powerd your power supply such as the new dislpy or video cards or the new hard disk which consumes more power or maybe you connected the monitorto your computer outlet. ...

good luck

Mohaamed

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