scope cooling

ARCADIOS · Post by **ARCADIOS** » Tue Mar 28, 2006 11:36 am

hi,
i use air fans to cool scope cards, a scope pro and a scope project.
is it a good idea to put heatsinks on dsps?

astroman · Post by **astroman** » Tue Mar 28, 2006 12:04 pm

Sharcs are designed to run at rather high temperatures.
A heatsink wouldn't change anything without additional airflow (there's nothing to dissipate the heat to).
Your method of providing some airflow is perfectly ok, and it doesn't even need to be high speed - well at least not before summer on Athens

the best way (as Scope4Live recently wrote) would be to have the cards positioned with radial fans between them (in the unoccupied slots), but that's not always possible.

cheers, tom

ARCADIOS · Post by **ARCADIOS** » Tue Mar 28, 2006 12:13 pm

yes, it is a problem with 42 C degrees in summer. do you recommend anything about that? except leaving greece for ever.
but what about the fans between cards? how can this be done properly on the scope 14 dsp which is so long. there have to be at least 3 fans on a line to cover the 14dsp card surface.

astroman · Post by **astroman** » Tue Mar 28, 2006 12:29 pm

don't worry, it's enough to let the fan blow over the card (if you use a slot fan) - the cards direct the airflow, so it's pretty efficient.

cheers, Tom

MD69 · Post by **MD69** » Tue Mar 28, 2006 12:29 pm

Hi,

I do remember there is LONG assembly supporting radial fan taking place of a PCI card. You could also place these fans OVER the board with some modifications (between he boards and the top of the housing (I did it some years ago and it was very efficient with my rack: scope boards are horizontals ).

cheers

arela · Post by **arela** » Tue Mar 28, 2006 12:39 pm

With a long fan, realy long fan, you could send 10 degrees up north.

most wecome

dubcotics · Post by **dubcotics** » Thu Mar 30, 2006 2:24 pm

hi,

I recommend the zalman CNPS7000B-Cu. It sports a 120mm fan, spinning as low as 1000 RPM, and up to 2000 RPM. This is easely the quietest fan/heatsink available today. Its big fan allows air flow all over place, consequently it cools everything that surrounds it, cpu, all your boards etc,

cheers,

ps:why put so many fans that produce noise, when you can have something quiter that can
do the job,

dubcotics · Post by **dubcotics** » Thu Mar 30, 2006 2:26 pm

hi,

check your board specifications, it wont most likely fit on older boards that bear the first P4,

cheers,