EMERGENCY!

Dotan Cohen dotancohen at gmail.com
Thu Nov 13 20:37:04 UTC 2008


2008/11/13 Steven Vollom <stevenvollom at sbcglobal.net>:
> I just put together my new computer.  I have never built one before.  I
> got to the point where the power is supposed to be turned on.  I left
> the side off the computer to adjust fan speed on two of the fans that
> came with the case.
>
> When I turned the computer on, the case fans came on.  There was a
> single beep.  Nonetheless the fan on the heat sink did not come on, and
> it is fixed to the power post of the motherboard that was made for it.
>
> I shut down the computer because I believe the processor creates a lot
> of instant heat, but I don't know what to do next.  My components are as
> follows:
>
> ASUS M3N-HT Delux Mempipe
> Processor is AMD Phenom Quad Black Box 9600
> Power supply is BFG Tech ATX12Volt  ES Series
>
> Two Maxtor 500gb SATA HD's.
>
> The case fans are connected to the Power Cable that goes to the DVDRW &
> Floppy Drive
>
> The heat sink fan goes directly to the motherboard.
>
> All the components are new.  The case did not come with a speaker that
> would indicate the beeps that advise problems.
>
> I am using the on-board Video, 8400 Gforce for now; also I am using
> on-board sound 8.1.
>
> Does anyone know if the fan over the Heat Sink not being on is normal
> when first turning the computer on?  It took me a year to assemble the
> components for my new computer; I can't afford to burn anything up.
>
> I am very worried.  Could someone who knows please respond?
>
> Steven
>

I have seen motherboards that will not turn on the processor fan
immediately, but my two ASUS machines both turn the fan on right away.
You are correct about the instant heat of the processor, but that is
only a problem if there is no heat sink (yes, I've done that but only
on purpose). With the heat sink you have enough time to boot into BIOS
and look at the CPU temp. If it goes over 40 and there is still no fan
then shut it down. You've got an AMD processor so there is less worry
of overheating it than with an Intel.

Now, why isn't the fan coming on? Check that the wires are secure (on
both ends) and that they are not damaged. Be certain that it is
plugged into the right place- sometimes it can be misleading. Download
the user manual for your motherboard if need be, they are easy to find
on the ASUS website.

Also, are you sure that you have not swapped the PSU's 20-to24 pin
adaptor with the bumblebee connector? Both are 2x2 square and although
the plastic is shaped to prevent confusing them, they can _still_ be
swapped accidentally on most motherboards as the tolerances are so
loose. The 2x2 connector with only black and yellow wires (bumblebee)
is the separate one.

-- 
Dotan Cohen

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