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Power supply?


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#1 loucardfan

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Posted 20 December 2008 - 06:23 PM

Seeking thoughts on what is going on with an HP 854n:
Computer boots up fine but then eventually will shut down on own. It may be within 40 minutes or 8 hours.

Upon shutdown, green led on back is off.
If I unplug the power cord from the back of the computer and wait a few seconds and then plug the cord back in, the green led will come back on and then it will boot up and we go through the whole process again.\

The fan used to kick on and off intermittedly, but not I'm noticing the fan is on most times.

Any insight will be appreciated.

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#2 garmanma

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Posted 20 December 2008 - 08:22 PM

If I unplug the power cord from the back of the computer and wait a few seconds and then plug the cord back in, the green led will come back on

You are resetting the built-in circuit breaker when you do that
You need a new power supply
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#3 loucardfan

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Posted 29 December 2008 - 10:33 PM

Thanks, I figured as much.
Is this something a dummy can replace? I've added RAM before and added an extra internal hard drive but that's about it.
If so, any recommendations on what to purchase?

Thanks again,

Curtis

#4 dc3

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Posted 29 December 2008 - 11:00 PM

Yep... this is a simple one. If you have already been inside the case then you have gotten past the hardest part... getting inside!

If you are concerned about getting all of the connections made just take some masking tape and mark the connector with a number from the PSU and where it connects and, then you will have a total number of connector and their location and an example of what the connector should look like. From you previous experience installing the hdd you are aware that the connectors will only go on one way.

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