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Author Topic: cpu fan not spinning, unit won't boot  (Read 3394 times)
chitownsista
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« on: September 16, 2003, 03:53:39 AM »

PLEASE SUPPLY RELEVANT INFORMATION:
Operating System Version:
Problem Application Name & Version:
Problem Hardware Make & Model:  Asus A7S333 motherboard, amd duron 1300 processor, 256mb memory module ddr, 32mb sdr agp vga
Error Messages:



assembled unit, cpu fan not spinning, unit would not boot. i have already returned and received back the processor and the motherboard.  reassembled unit, still no fan spinning and the cpu is still hot, but i did get a boot to the bios.  the letters on part of the screen became jumbled so i powered off and the processor is extremely hot.  now the unit won't boot at all.  any suggestions? thanks.

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« Reply #1 on: September 17, 2003, 02:44:21 PM »

Hi,

Was the CPU fan also replaced (if not permanently attached to CPU)?
Are you connecting the CPU fan to the correct connection?
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chitownsista
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« Reply #2 on: September 18, 2003, 02:14:42 AM »

yes, i have replaced the fan and it is the proper connection.
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« Reply #3 on: September 18, 2003, 04:50:23 PM »

Hi,

If the motherboard, CPU and CPU fan were replaced and the CPU fan still doesn't spin then it is not connected at the correct place. Verify in your motherboard manual for the correct placement.
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chitownsista
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« Reply #4 on: September 20, 2003, 03:30:29 AM »

the cpu is connected properly, any more suggestions?  help!  thank you.
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« Reply #5 on: September 23, 2003, 02:48:52 PM »

Hi,

Is the power supply fan spinning? Check that the power supply is set to 110 volts and not 220v. There usually is a small switch at the back of the power supply. DO NOT set to 220v if it is already set to 110v!

Could be power supply related.

Is the hard drive spinning up?
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chitownsista
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« Reply #6 on: September 24, 2003, 03:08:04 AM »

hi,

the power supply fan is spinning, the volt is set to 115.  the power supply is an antec 300w output model sl300s.

yes, the hard drive is spinning.  

thank you.
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« Reply #7 on: September 24, 2003, 01:50:40 PM »

Hi,

Are you getting any beep codes?

Make sure the memory is well seated. If you have two memory modules, try removing one, test, if error persists swap to the other one.
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chitownsista
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« Reply #8 on: September 25, 2003, 03:48:06 AM »

hi,

no, i have no beep codes and 1 memory module.  thank you.
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« Reply #9 on: September 29, 2003, 06:34:27 PM »

Hi,

I find it very strange that the CPU fan doesn't spin!

Have you tried starting up the system without any non-essential devices plugged in? Try disconnecting all ribbon cables at the motherboard end and removing all non-essential add-on cards. Does it now work?

Are you using metal stand-offs (small pegs) to support the motherboard to the casing or plastic ones? If metal, make sure the back of the motherboard is not shorting out!
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« Reply #10 on: October 02, 2003, 06:26:52 PM »

i am having a simuler problem i put new ram in and it will not boot i have a beep code tryed removeing the new card but it it did not help can you help
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« Reply #11 on: October 02, 2003, 06:31:22 PM »

Hi clinton1,

What is the beep code? (e.g. 1 long - 2 short)
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chitownsista
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« Reply #12 on: October 03, 2003, 04:15:36 AM »

quote:
Originally posted by Admin

Hi,

I find it very strange that the CPU fan doesn't spin!

Have you tried starting up the system without any non-essential devices plugged in? Try disconnecting all ribbon cables at the motherboard end and removing all non-essential add-on cards. Does it now work?

Are you using metal stand-offs (small pegs) to support the motherboard to the casing or plastic ones? If metal, make sure the back of the motherboard is not shorting out!



hi

yes i do have the metal ones, i'll check this out.  thank you.
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« Reply #13 on: October 07, 2003, 02:27:48 PM »

Any luck?
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Haith
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« Reply #14 on: October 07, 2003, 04:09:35 PM »

Simplest things first:
If you blow into the fan while it attached to the heat sink, will the blades spin?  Some of the circular fan surrounds can be distorted a little when attached to the heat sink.  The clearance between the blade and surround can be so small that the blade catches.  It takes next to nothing to spin the blades.
Does it spin when NOT attached to the heat sink?
Borrow another fan for trouble shooting...even if the other is brand new, to see if it works.  I'm suspecting bad fan motor, clearance or bad connector.
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