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CPU fan failed, runs in text mode, but restarts once in graphics mode


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#1 todd_in_la

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Posted 08 June 2017 - 06:00 PM

My PC is a stock HP Pavilion 500-164 (AMD A8-6500 APU, 8GB DDR3 RAM, 2TB HDD), running Win8.1. It has no add-in cards, and nothing connected except keyboard, mouse & monitor.

 

CPU fan failed, but I didn't realize it for a while...

 

I replaced the fan and thermal paste and it now boots w/o "fan failed" error, but only runs if using a text-based OS (BIOS diags, Linux command line, DOS). Once I boot Windows or Linux graphical interface the system immediately restarts.

 

BIOS-based memory test and a video-RAM test both ran without errors. I replaced PSU with a known-good PSU, too, but still get same reboot behavior.

 

Is the CPU bad or is it the motherboard? I suspect it's the CPU, but I'd like other opinions before I drop $50-75 on a replacement.

 

----

 

I forgot to mention that I get a blue-screen error with either of two messages:

 

:(

Your PC ran into a problem and needs to restart.

We'll restart for you.

 

If you'd like to know more, you can search online later for this error: WHEA_UNCORRECTABLE_ERROR

 

or

 

:(

Your PC ran into a problem and needs to restart.

We'll restart for you.

 

If you'd like to know more, you can search online later for this error: MACHINE_CHECK_EXCEPTION

 

It never restarts, so I turn it off either by holding down power button or pulling the power cord out.

 

When I turn it back on I'll next get the "Preparing Automatic Repair" screen, then either of the same two messages, again.

 

Also, I've tried replacing the RAM and running from a separate video card (known-good). Still get all the same problems.


Edited by todd_in_la, 08 June 2017 - 07:45 PM.


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#2 Ste2ph

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Posted 08 June 2017 - 06:57 PM

Are you running windows 8.1 or dual booting windows and Linux?

#3 todd_in_la

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Posted 08 June 2017 - 07:00 PM

No, not dual-booting: Win8.1 is on internal HDD, Linux is on USB key.



#4 Ste2ph

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Posted 08 June 2017 - 07:13 PM

Take out the USB key just in case u still have it in. Maybe u r getting some type of hardware failure and u r getting a bsod that causes the PC to restart suddenly. When u turn on your computer press F8 till u get the advanced boot options. Then select "disable restart on system failure" or something like that. Do you get a error screen now when u boot?

#5 todd_in_la

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Posted 08 June 2017 - 07:44 PM

Sorry, I forgot to mention that I get a blue-screen error with either of two messages:

 

:(

Your PC ran into a problem and needs to restart.

We'll restart for you.

 

If you'd like to know more, you can search online later for this error: WHEA_UNCORRECTABLE_ERROR

 

or

 

:(

Your PC ran into a problem and needs to restart.

We'll restart for you.

 

If you'd like to know more, you can search online later for this error: MACHINE_CHECK_EXCEPTION

 

It never restarts, so I turn it off either by holding down power button or pulling the power cord out.

 

When I turn it back on I'll next get the "Preparing Automatic Repair" screen, then either of the same two messages, again.

 

Also, I've tried replacing the RAM and running from a separate video card (known-good). Still get all the same problems.



#6 Ste2ph

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Posted 08 June 2017 - 07:58 PM

Do you have the windows 8 DVD? Sometimes if you run repair from the DVD it can fix startup problems that the US can't fix itself.

#7 todd_in_la

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Posted 08 June 2017 - 08:10 PM

No, I don't have the Win8 media. Still, this has to be a hardware problem since it has the same kinds of crashes with the Linux distros.



#8 todd_in_la

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Posted 19 June 2017 - 01:40 PM

I replaced the CPU, which fixed some of the problems, but had to add in a video card, because even though the system would run w/ new CPU, the video output was full of noise/artifacts. Since I can't trust the mobo any longer, tho', it's gonna get replaced, and then all will be well (I hope!). Thanks, Ste2ph, for your help!



#9 MadmanRB

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Posted 20 June 2017 - 12:32 PM

It its entirely possible that you cooked your hardware.

Its sad but it happens, thermals can do major damage if left unchecked.

Hopefully your costs were okay, hate to see a lot of money thrown out the door for no reason if this all goes pear shaped.


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