on mine, there's a nice plastic filler panel on the back for an av
option  it think.  in any case it's in just the right spot to cool the
processor if you remove the filler plate, at least that's what i'm going
to try.  i think you can also put a fan inside attached to the bottom of
the lowest drive shelf to blow on the processor etc.  while in internal
fan doesn't bring in fresh air it can help cool locally, though you
don't want to use a huge fan internally or you might make normal air
flow more difficult (because of the turbulence etc., it doesn't work
good to have 2 fans blowing at right angles, they interfere with each
other terribly).  you could also remove the existing fan and install a
larger one, which wouldn't be any louder if you got a good one.  

i suppose if you wanted to do sheet metal work you could also put one on
the left side of the case, and if you're not using all of the pci slots
you could put a fan there too.  you may also want to put fresh/better
heatsink grease between the processor and heatsink as it is often dried
up and somewhat less effective on these older machines.  mostly it
depends on how hard you want to work, how much fan noise you want, how
pretty you want it to look and how creative you are.  some overclockers
have also noted problems with the caps on ram simms etc. so if you know
what a chip capacitor looks like you might want to check those, or add
more in parallel, which i plan to do, there are other bypass caps on the
board that could be beefed up as well, this reduces signal noise and
power supply noise and helps the chips have a more steady power source,
cmos chips tend to draw current in brief intense spikes and the caps
smooth that out.  also making sure the board is free of dust, it can
make a huge difference.  when i get a used machine i usually 
disassemble it and wash the case and electronics off, although you don't
want to mess with the power supply unless you know what you're doing,
and obviously hard drives don't need to get wet, just wipe them off.  if
you'd like a copy of the service manual contact me off list, it has an
exploded view which is helpful for planning and devising a strategy. 
also if you're not using one of the drive bays a fan could go there,
although you'd probably want it blowing in rather than in your face. 
haven't gotten to play  with and clock chip my 9600 but i'll let the
list know how it goes and if i come up with any clever solutions.
you could also slightly enlarge some of the vent holes to allow more
airflow, as well as removing the fan guard on the power supply, the 9600
case has a grill over it any way and have the 2 grills close creates
allot of turbulence and reduces air flow while increasing noise.

> Subject: Re: 9600 overclocking
> Date: Fri, 17 Aug 2001 08:16:08 -0400
> Message-ID: <001201c12716$66168440$48064142@doctorvor>
> 
> no i havent. is it difficult to install a custom fan in a 9600? there
> already is a really big fan built into the case. what an elegant design the
> 9600 is!
> 
> vora

-- 
"To invent, you need a good imagination and a pile of junk."
--Thomas Edison 

Philip Stortz, Mad_Scientist_at_Large.  available to take over worlds
large or small.

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