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Power up problem

Emachine xp2 (4 years old)

Has been doing this for a few months...seems to be more often lately.

Occasionally when I touch the power button the computer fan will come on at high speed and not "idle down" and will not start.

If I unplug the cord at the back, replug and touch the power button the computer will start properly. High speed fan for 4/5 seconds then low speed and everything works.

I can't duplicate this fault. It is intermittent.

Suggestion on troubleshooting methods?

Thanks

JP Bill

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Not a fault.

In reply to: Power up problem

Some newer boards with speed controller fans by design start the cooling fans at maximum speed. After the boot starts, later the speeds are reducing as the bios or such reads the temperatures and gives the all clear for reduced fan speeds.

This feature appears to annoy owners.
Bob

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The problem is

In reply to: Not a fault.

When the fan does not idle down...the computer does not start.

So I let the fan run at high speed and if the computer does not start after the fan running at high speed for 9/10 seconds (which it won't)

I unplug and replug and the computer will start properly.

Is the circuit that controls the fan speed preventing the computer from starting?

IF the fan doesn't "idle down" the computer won't start?

Thanks

JP Bill

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Is the circuit that controls the fan speed preventing the co

In reply to: The problem is

Is the circuit that controls the fan speed preventing the computer from starting?

No. I gave the short version of why the fans start on high. It's not a bug, it is designed to do that.

IF the fan doesn't "idle down" the computer won't start?

This is a clue your machine crashed on startup. It does not indicate anything else.
Bob

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It does not indicate anything else.

In reply to: Is the circuit that controls the fan speed preventing the co

If/When the fan "idles down" it starts, If/When it doesn't "idle down" it doesn't start.

You don't consider that a "symptom" and a place to start troubleshooting? (in the bios or such/ cpu temp )

I understand that the fan runs high at startup and why it does...It has always done that since I purchased it. (4 years ago)

I realize it is not a bug.

Thanks

JP Bill

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No, it's not a good clue.

In reply to: It does not indicate anything else.

It just tells us the machine crashed on startup. There are a long list of reasons why it would do that from anemic power supply, bad ram, etc. But the real clues are stories about the machine, what was added lately and troubles over the past year.

You should also inspect the motherboard capacitors (type BAD CAPS at google.)
Bob

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RE: what was added lately and troubles over the past year.

In reply to: No, it's not a good clue.

Nothing added only problem intermittent startup problem as stated.

Will eyeball motherboard.

Thanks

JP Bill

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