pc cpu heatsink to use with GC

sss · 5th March 2004, 06:01 PM

hey guys
what do u think of using cpu cooling fan and heatsink with a gainclones? will it be big enough?

S.C · 5th March 2004, 06:05 PM

I don't think you will like the fan's noise when you enjoy your music.

sss · 5th March 2004, 06:14 PM

i think cpu fans generate less noise then the fans in some power amps

stadams · 5th March 2004, 07:11 PM

Quote:

Originally posted by sss
hey guys
what do u think of using cpu cooling fan and heatsink with a gainclones? will it be big enough?

It should work fine depending on the size of the sink and fan. Marshall amplifiers uses a TDA7294 @ 50 W in there MG series amplifiers and keeps it cool by the method that you describe. It would appear to be the size of a Pentium CPU with fins approximately an inch tall. An Athlon heat sink would be even better, although you may have to speed control the fans.

Later,

Ropie · 5th March 2004, 07:58 PM

I don't think you will need the fans, even in the desert temperatures

Much better is to get a more solid heatsink with thicker fins, or no fins at all. CPU heatsink fins tend to ring, though there are ways to damp them.

tg3 · 5th March 2004, 08:39 PM

If you do want a fan, use a low noise model like this one.

sss · 5th March 2004, 09:00 PM

i'm thinking of using somthing cool like this ones

sss · 5th March 2004, 09:01 PM

and this

AGGEMAM · 5th March 2004, 09:58 PM

Quote:

Originally posted by tg3
If you do want a fan, use a low noise model like this one.

Too noisy.

Choose a Papst fan, even the noisiest of those produce only 19 db(A). I use 3 of thier 9 db(A) coolers and even if put my head against the cabinet I can't hear them (during the day, in the middle of the night it's just about noticable).

JAZZ2250 · 5th March 2004, 10:45 PM

I've tried GC with CPU heatsinks and fans. The fans were not "silent-grade" like the ones in the picture and I couldn't stand the noise. However, when I lowered the power supply voltage for the fans to let them run at lower speed, they became very quite. So, if you use "silent-grade" fans at slightly lower than the rated voltage, you will hardly hear the fan noise. But, you cannot lower the power supply voltage too low because fans need minimal amount of voltage (and current) to operate.

Good luck.

Jai

5th March 2004, 06:01 PM	#1
sss diyAudio Member Join Date: Jul 2003 Location: Israel , haifa	pc cpu heatsink to use with GC hey guys what do u think of using cpu cooling fan and heatsink with a gainclones? will it be big enough?

5th March 2004, 08:39 PM	#6
tg3 diyAudio Member Join Date: Nov 2002 Location: Seattle, WA	If you do want a fan, use a low noise model like this one. __________________ If you don't measure, you don't know.

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5th March 2004, 06:05 PM	#2
S.C diyAudio Member Join Date: Jun 2003 Location: Milpitas	I don't think you will like the fan's noise when you enjoy your music.

5th March 2004, 06:14 PM	#3
sss diyAudio Member Join Date: Jul 2003 Location: Israel , haifa	i think cpu fans generate less noise then the fans in some power amps

5th March 2004, 07:58 PM	#5
Ropie diyAudio Member Join Date: Jul 2003 Location: SW London	I don't think you will need the fans, even in the desert temperatures Much better is to get a more solid heatsink with thicker fins, or no fins at all. CPU heatsink fins tend to ring, though there are ways to damp them.

5th March 2004, 10:45 PM	#10
JAZZ2250 diyAudio Member Join Date: Mar 2002 Location: Seoul. Korea	I've tried GC with CPU heatsinks and fans. The fans were not "silent-grade" like the ones in the picture and I couldn't stand the noise. However, when I lowered the power supply voltage for the fans to let them run at lower speed, they became very quite. So, if you use "silent-grade" fans at slightly lower than the rated voltage, you will hardly hear the fan noise. But, you cannot lower the power supply voltage too low because fans need minimal amount of voltage (and current) to operate. Good luck. Jai

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