Turning on Computer

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Original Message

Name: Beginner1
Date: March 28, 2008 at 06:32:35 Pacific
Subject: Turning on Computer
OS: Vista
CPU/Ram: 8 gigs
Model/Manufacturer: Hp

Comment:

I upgraded my hp, motherboard and everything, micro atx form factor. WHen I had everything plugged in it wouldn't boot. Finally realizing after pressing the power button for a couple of second would make the computer turn on. I was just wondering is this common, or is it a bad power supply.
Jim R

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Response Number 1

Name: Bakers
Date: March 28, 2008 at 08:45:51 Pacific
Subject: Turning on Computer

Reply: (edit)

Is the HP Power supply Standard ATX or Proprietary ?
Did you benchtest before installing in Case ??

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Response Number 2

Name: Cuffy
Date: March 28, 2008 at 08:54:00 Pacific
Subject: Turning on Computer

Reply: (edit)

The delay in activating power when the button is depressed is common in modern machines.
You'll find the same delay when you turn off the machine for any reason. Ordinarily the machine turns itself off following a normal shutdown so you may never get to experience the delay in turning off the computer unless you have problems and it becomes necessary to just turn off the box.
Don't test the button for power off........... use Shutdown, the correct procedure for quitting your session.

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Response Number 3

Name: aegis
Date: March 28, 2008 at 09:28:37 Pacific
Subject: Turning on Computer

Reply: (edit)

When you press the power button the signal goes to the motherboard. The motherboard sends a signal to the power supply to come all the way up. The motherboard then checks all the voltages, and if any are not within tolerance it drops the signal to the power supply. This causes the power supply to go back to standby mode.
So the upshot is, it could be that the power supply is slow bringing up all the voltages or (less likely) the motherboard is slow in sending the signal to the power supply.

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Response Number 4

Name: Beginner1
Date: March 28, 2008 at 09:50:43 Pacific
Subject: Turning on Computer

Reply: (edit)

When I went home for lunch I had tried to turn it on by pressing the power button and keeping it pressed, and then I just pressed it down for a couple of seconds and pressed it again, and it booted up. I am starting to think that it is the power supply not being able to handle something like this. My power supply is 650 Watts
Jim R

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Response Number 5

Name: OtheHill
Date: March 28, 2008 at 15:45:24 Pacific
Subject: Turning on Computer

Reply: (edit)

Double check the case to board wiring to verify you have the power switch wiring on the correct pins. Also the reset switch.

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Response Number 6

Name: Beginner1
Date: March 29, 2008 at 09:58:38 Pacific
Subject: Turning on Computer

Reply: (edit)

I found it out it was the power supply have issues, so I had to go get a antec.
Jim R

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HP 4250dtn

conflicting serial #'s

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