Noisy Northbridge fan on IS7!

Hi chaps,

Got a 4 month IS7 motherbord. Recently switching on for the first time in
the day the PC makes a bloody terrible noise, like a grinding mooo!. As I
have LED fans and a side window I've owrked out its the Northbridge "Abit"
fan struggling. It shuts up and spins normally after about 30 seconds.

I'm in the UK. Is there any chance Abit would send replacement fan out
easily, if not whats a good replacement?

My system is not overclocked.

Thanks,

Damian

 

Thermaltake Tiger.

When mine went, I didn't think there was any point replacing it with and
identical unit that's also noisy and probably going to pack up in
another 4 months.

The tiger is pretty quiet as it is, but I've got it on one channel of a
fan controller and its absolutely silent now. (In fact, the CPU fan is
so close, I'm sure it would cool adequately even without the northbridge
fan running)
About a tenner.


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You're probably in luck, I recently emailed abit-uk about a failed nb fan on
my 3 month old NF7-S. They responded the next day, asked for me to send a
covering letter stating the serial no. and mobo details and a A5 jiffy with
a couple of stamps on it. I had the new fan within a couple of days - kudos
to abit support on this one.

The only thing that worried me was that the replacement was identical to the
3 month old failed fan. I haven't fitted it as I was going water-cooled
anyway, I wanted the replacement on the odd chance I'd sell the mobo in the
future.

Replacement is quite staight forward but requires the system to be stripped
and the mobo removed from the case.

email them from here; mailto:

HTH

 

Got a 4 month IS7 motherbord. Recently switching on for the first time in

I replaced the NB fan on my NF7-S with a Zalman NB heatsink. Zero noise.
The catch is you should make sure you have good case airflow. Also, I'm 99%
sure you'll void the warranty this way, if that matters to you.

But the thing is great - it barely gets warm even when the system has been
running a while.

 

If you overclock put a Zalman heatsink on the Northbridge and
SouthBridge, and maybe a 120mm fan above each one

 

Yes, but this is for an IS7 not an NF7.
Does it fit on this board??

I'm not saying it doesn't, but I couldn't find out for sure (and it
didn't look as if the clips on the MB were the right sort) which is why
I went for the tiger which DOES fit.

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Personal email for Gareth Jones can be sent to:
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Ahhh crap. I've emailed them but did'nt want to have to dismantle the setup!

If I get chance I'll have a "fiddle" with it.

Cheers guys

 

BTW - you DONT have to take the motherboard out with the tiger.
You just unclip the existing fan, and clip in the new one!
They are soldered in mounting loops (that's why I wasn't convinced the
Zalman was going to work in the first place)

(Oh,.... I seem to recall that its easier to get the MB up to temp first
then the thermal adhesive pad thingie comes off!)

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Personal email for Gareth Jones can be sent to:
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followed by 'uk2' followed by a dot
followed by 'net'
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Funny that, I emailed them about the same issue and never got a
response. This was the U.S. tech support section. My next email to
them will not be so pleasant.

 

It should be noted that the Zalman NB heatsinks do not make
contact with the full surface of the chip, kinda bogus, IMO.

Barely gets warm? Perhaps it is not making good contact.
Those NF2 Northbridge chips are generally very concave.
My NF7-S came with a big wad of heat sink compound,
and there is no way it was making good contact. I had to
turn down my FSB until I can screw around with it some more.

 

The just sand em flat then ??? whats the problem, Lappingi think they
call it, i have had no probs with my stock standard no lapping ?

 

Sand what flat? The NB chip?



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__________________________________________________
Personal email for Gareth Jones can be sent to:
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followed by 'uk2' followed by a dot
followed by 'net'
__________________________________________________

 

The chip is curved ??? did not know that thought somone said the
heatsink is curved you can fix that

But the chip HMM a hammer ?

 

No, the "not making contact" refers to the bottom surface of the heatsink
Although the heatsink is square, it is machined away on both sides to
accept the hold-down mechanism.
http://www.zalmanusa.com/upload/product/zm_nb47j_b_p.jpg

I did sand the Northbridge on my Shuttle AN35-N and let me tell
you, it was no picnic. The heatsink sure gets hot now, but it didn't
allow me to overclock more...

 

Perhaps you may have done a little better by optimising your life style.
Just a thought.

 

Ouch!!
But ROTFLMFAO !!

Even our illustrious, 'seated' "VP" has more couth than that !!


Qed.

 

Since it getting hotter, the NB is running cooler. That was the
objective of the exercise. It still runs 200 x 11 at low decibels.

About my life style? What is that, anyway-- I don't even know if
I have one.