Subject: Re: Multia repair
To: None <stanp@storm.ca>
From: Wilko Bulte <wilko@yedi.iaf.nl>
List: port-alpha
Date: 06/09/1998 20:42:28
As Stan Pietkiewicz wrote...
> 
> 
> Wilko Bulte wrote:
> 
> > As Curt Sampson wrote...
> > > On Sun, 7 Jun 1998, Joseph Sarkes wrote:
> > >
> > > > Does anyone have any idea whether the cpu is cooled well enough without airflow
> > > > from the power supply (removed from the case with only the power supply leads
> > > > connected) as when i did this before, the cpu heatsink got very hot.
> > >
> > > I'd think it would be ok if you don't run it for too long. I've
> > > found the CPU heatsink always to get very hot; even with a 3" fan
> > > blowing directly through it on my AXPpci33s, it's too hot to touch
> > > for more than a second or two with bare skin.
> >
> > Hmm. I've seen Alpha systems behave *very* weird when the CPU overheats.
> >
> > What I did to my NoName: unscrew the heatsink, drill a couple of holes,
> > find some long screws and a small fan (like found in older Apple Macs)
> > and put this on the CPU. It now only gets lukewarm to the touch.
> 
> The fins on the heat sink are also stiff enough so you can mount a fan onto the heat
> sink (blowing onto the top of the Alpha chip) without removing/drilling the heat sink.
> Find a fan with mounting holes at the right spacing (I used a pentium cpu fan) and
> you're all set. I just had to look around at a few pc clone shops, and I found one that
> works.....

Yes, this also works. I opted for a Mac fan because I A. had one and B.
it also has the right spacing for the cooling fans. The drilling action
was because I hate fans falling of chips ;-)

Wilko
_     ______________________________________________________________________
 |   / o / /  _  Bulte 				  email: wilko @ yedi.iaf.nl 
 |/|/ / / /( (_) Arnhem, The Netherlands          WWW:   http://www.tcja.nl
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