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Presario 8000T power on then off


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#1 f1km

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Posted 07 January 2010 - 04:52 PM

My Presario 8000T turned off by itself the other day, no changes where made to hardware or software. This computer has been working with no problems for the last several years. I swapped the power supply with the exact make and model. Here's whats happening:
When I plug the computer in, the light on the power supply is green and steady. When I turn on the computer; the power comes on, the fans spins, lights are all green and then it just turns itself off. The whole process takes about 1 second.
I then need to unplug the power and wait for the suppley to blink green once then I can plug it back in with a steady green light. I have replaced the cmos battery, unplugged everything but the system board and tried to turn on, reseated the RAM, all without luck.
Anyone have any ideas? Thanks!

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#2 garmanma

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Posted 07 January 2010 - 07:33 PM

How dirty was the inside of the computer when you changed the PS?
Especially the heatsink underneath the CPU fan
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#3 ReviverSoft

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Posted 07 January 2010 - 08:12 PM

Just to rule out a possibility, can you check the PSU with another PC?
Make sure you test all the necessary connectors.

Last but not the least, which PSU is it? make/model?
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#4 f1km

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Posted 07 January 2010 - 08:33 PM

How dirty was the inside of the computer when you changed the PS?
Especially the heatsink underneath the CPU fan


Very dusty inside case, but not too bad since I have cleaned it. However, It was completely caked between the heat sink and and fan.

#5 f1km

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Posted 07 January 2010 - 08:38 PM

Just to rule out a possibility, can you check the PSU with another PC?
Make sure you test all the necessary connectors.

Last but not the least, which PSU is it? make/model?


It's a brand new PSU, I did check every connector and tested before I installed it.
Here's the make and model:
HIPRO HP-D2537F3R 250W ATX12V Power Supply
Not much hooked up and full power coming out.




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