Cold computer = starting problem...

  • Thread starter Thread starter J?j?
  • Start date Start date
J

J?j?

Hi,

I've a trange problem with my PC.
When I start it, it reboot instead-of loading windows. (windows start
to load the first 5 to 10 first files before the computer reboots)
but after 5 to 8 minutes, the computer starts correctly (if the PC is
open during these 5 minutes) and I've no more problems. (for the rests
of the day)

so My PC works only when it is hot!!!

If I go in the bios instead-of booting with windows. then the system
doesn't reboot, so I wait 5 minutes, then I start normally.

From my tests, its not an HD problem.

I suspect a motherboard problem, because 1 of my USB port has some
problems.
Or its the power supply. Maybe when the HD starts its job, it more
power.

what can I test or do?

thanks.

Jerome.
 
J?j? said:
Hi,

I've a trange problem with my PC.
When I start it, it reboot instead-of loading windows. (windows start
to load the first 5 to 10 first files before the computer reboots)
but after 5 to 8 minutes, the computer starts correctly (if the PC is
open during these 5 minutes) and I've no more problems. (for the rests
of the day)

so My PC works only when it is hot!!!

If I go in the bios instead-of booting with windows. then the system
doesn't reboot, so I wait 5 minutes, then I start normally.

From my tests, its not an HD problem.

I suspect a motherboard problem, because 1 of my USB port has some
problems.
Or its the power supply. Maybe when the HD starts its job, it more
power.

what can I test or do?

thanks.

Jerome.
Click to expand...

It's most likely a power supply. There is nothing to test, just replace it.
Look for a good quality name brand of 400W or better, so you can use it when
you upgrade to a better motherboard/processor later. -Dave
 
mmm...
well... I'll test this.


Anon said:
It's most likely a power supply. There is nothing to test, just replace it.
Look for a good quality name brand of 400W or better, so you can use it when
you upgrade to a better motherboard/processor later. -Dave
Click to expand...
 
I am not an expert in this area. My old PC has some problem booting
up. I find that the fan inside the power supply in that PC probably is
too old or something; therefore, it isn't always able to spin up when
I start it from cold. I can get the machine to start by using a small
stick to manually spin the fan. Check yours to see if yours has the
same problem. If this is so, you may want to replace the power supply.

Well, I could have replaced mine. But that PC is too old. I just leave
it in the corner to gather dust.

Jay Chan
 
On 25 Jan 2004 14:10:40 -0800, (e-mail address removed) (J?j?) wrote:

When a computer starts up the drives use more power to start up.
This is a normal problem for all electric motors. Then when the hard
drive has to read lots of data it often may use just enough power to
stress out the power supply. For most people a 350 watt power supply
is enough. However, if you have 2 hard drives 2 CD/dvd drives and a
high-end video card you may need more power. Most power supplies give
up before they reach their rated wattage because the watts are
different on different voltage lines.
Example +/-12v, +-3.3v, +-5v.

If any of these lines has problems, the computer gives up. Some power
supplies give up because of the wake on events, like Keyboard, mouse,
Network, modem, etc. I think this all works off of the negative 5v
line to send signals.
 
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