"Rod Speed" <rod.speed.aaa@gmail.com> skrev i meddelandet
news:4uug81F19ucajU1@mid.individual.net...
> Rolfie <rokn760@hotmail.com> wrote
>
>> after having skutdown the computer for more than 15 - 30 min it won't
>> boot up at all. The boot up does'nt get to bios startup splash screen.
>> The power supply is on - the green LED is on but nothing happens. The LCD
>> screen is black and not activated. No error messages like beeps etc.
>
>> If I do a direct power down with the power switch and power on again, the
>> same thing will happen.
>
>> But if I leave it with the power on for 5 - 10 min, power off and then
>> power on, the LCD is powered up, the bios splash screen comes up and then
>> the computer goes directly into the bios setup screen - Chip
>> configuration.
>
> That bit is important.
>
>> Exiting the bios setup without saving, reboot and the computer boots up
>> fully normal and windows starts in a normal way.
>
>> To me it seems to be some kind of either hardware porblem and/or a bios
>> problem. But what???
>
> You can get a result like that from a number
> causes, you just have to go thru the possibilitys
> systematically, with the easiest to try first etc.
>
> Can be due to the cmos battery going bad, although you
> would normally get a cmos checksum error in that case.
> Very cheap to try a new battery to be sure.
>
> Can be a bad power supply which has got bad caps
> in the startup circuitry. If you have a multimeter and
> can use one, you can work out whether its this or a
> motherboard gone bad. Otherwise the obvious way
> to test that possibility is to try another power supply.
>
> Can be due to bad caps on the motherboard. These
> are the usually blue or black plastic covered post like
> things which stick up vertically from the motherboard.
> The tops should be flat and if any have bulged or have
> leaked, that is the problem. In this case you may choose
> to just wear the problem and leave the system on all
> the time or just hibernate it etc if that starts immediately.
>
>> No recent changes in hardware.
>
>> Any ideas?
>
>> MB ASUS A7M266
>> CPU AMD Athlon 1400 MHz
>> BIO ACPI Bios Revision 1008 Beta 002-B 08/22/2002S
>> RAM 768 MB
>> Sound Card Creative Sound Blaster Live 5.1 Platinum
>> Video Card GeForce2 GTS
>> Monitor LG2010P
>> OS Windows XPSP2 Professional
>> Norton Systemwork Antivirus 2002
>
>
Thanks for your reply,

the bios battery is new and fresh
but no avail.

I'll check power supply and caps on MB.

Rolfie

Rolfie