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Corleone88
Joined: 09 Dec 2006
Posts: 474
Location: France
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| Posted: Thu Sep 11, 2008 7:13 am Post subject: An annoying sound from my BG808 front fan |
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Hi,
Since I put my BG808 on the ceiling (it was before under a table), I hear the front fan way too much.
I am considering of changing it to a PAPST or another very silent one, but I cannot found the exact specs of the fan (ref. 3110NL-04W-B50 NMB). On the NMB web site, I found very similar reference but not the exact one (3108NL... or 3110KL...). Does someone know the CFM max/min and the min/max speeds of this fan ?
Thanks
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Z-Photo
Joined: 07 Mar 2006
Posts: 2749
Location: Huntsville - Alabama
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| Posted: Thu Sep 11, 2008 1:02 pm Post subject: |
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To the best of my knowledge no fan swap has ever worked out for the Barco - they put in some of the quietier fans to begin with. You may have one with a bad bearing or dirt on the blades.
I would replace it with the same PN model fan.
_________________
Engineer by Day
Photographer by Night
My Portfolio
The Only GOOD AMPRO - is a Dead AMPRO.
wait - are they not all DEAD already?
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Corleone88
Joined: 09 Dec 2006
Posts: 474
Location: France
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| Posted: Thu Sep 11, 2008 3:18 pm Post subject: |
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OK, but where can I find one ? Nothing on the Web...
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Tom.W
Joined: 09 Mar 2006
Posts: 6635
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Corleone88
Joined: 09 Dec 2006
Posts: 474
Location: France
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| Posted: Thu Sep 11, 2008 5:17 pm Post subject: |
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I am looking for a 3110NL-04W-B50 and I cannot find it on this site 
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Tom.W
Joined: 09 Mar 2006
Posts: 6635
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Ile
Joined: 09 Mar 2006
Posts: 1491
Location: Jyväskylä, Finland
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| Posted: Thu Sep 11, 2008 5:44 pm Post subject: |
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Bigger 120 mm fan works great also in front, but is ugly and takes some work to fit in place.
Front fan have own temperature sensing system...
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Tom.W
Joined: 09 Mar 2006
Posts: 6635
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Z-Photo
Joined: 07 Mar 2006
Posts: 2749
Location: Huntsville - Alabama
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| Posted: Thu Sep 11, 2008 6:04 pm Post subject: |
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That is almost ugly enough to be mistaken for an AMPRO......
except it works
_________________
Engineer by Day
Photographer by Night
My Portfolio
The Only GOOD AMPRO - is a Dead AMPRO.
wait - are they not all DEAD already?
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Tom.W
Joined: 09 Mar 2006
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Corleone88
Joined: 09 Dec 2006
Posts: 474
Location: France
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| Posted: Thu Sep 11, 2008 8:52 pm Post subject: |
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Ok thanks for all your answers.
Ile, what is the model of your 120mm fan?
I have some NMB spares (the big ones at the back). Is it safe to plug one of them in place of the front one (like Ile did)?
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Ile
Joined: 09 Mar 2006
Posts: 1491
Location: Jyväskylä, Finland
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| Posted: Fri Sep 12, 2008 11:44 am Post subject: |
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| Corleone88 wrote: | Ile, what is the model of your 120mm fan?
I have some NMB spares (the big ones at the back). Is it safe to plug one of them in place of the front one (like Ile did)? |
It's similar 120mm NMB what are used in back. I cutted bigger opening to that front plate and removed that grating for better air flow.
I think it's safe, since it have twice air flow. Noise level is 3db lower and convergence tray sensing system run it with little lover voltage. Lower voltage means better cooling.
Front fan supply can drive little higher power fan easily, fet can run up to 4A load or something.
I have feeling that now convergence stabilizes faster. Crappy look doesn't bother me since my hushbox covers it.
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Corleone88
Joined: 09 Dec 2006
Posts: 474
Location: France
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| Posted: Fri Sep 12, 2008 12:54 pm Post subject: |
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Ok so if I understood correctly, you plugged the big fan the same way than the little one and you removed the grid, is that right ?
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That fan has been discontinued but there are three here 
