> I upgraded my B&W 400  to a G4/400  and over clocked it to 450 Im currently
> running 51 degree c what danger limits should I watch for.?

When the CPU gets too hot, your computer will just hang.

> I got worried when I started seeing regular temps in the mid 60's celsius (80f
> > + air temp) with my g4/450 beige. So I popped open the case added some
> thermal grease, which brought it down to the mid 50-s - low 60s. With the
> latest add of a small heatsink fan, I now stay @ 44-48 c. I don't the tech
> limits, but 60c is as high as I'd like to see.

Don't trust the temperature sensor in the CPU, it's grossly inaccurate. For
example, the 333 MHz G3 in my PowerBook 1400 will usually report it is
running at some 64 degrees Celsius, while the 450 MHz G4 Cube will claim to
be at 20 degrees, the room temperature being a degree or two above that
notwithstanding.

> No one knows what the limits are on PPC chips, as neither IBM nor Motorola
> publish them. It's clear from their tech manuals that 50C is not excessive.

Recommended junction temperature is 0 to 105 degrees Celsius.

,xtG
.tsooJ
-- 
Joost van de Griek
http://www.jvdg.net/


-- 
G-List is sponsored by <http://lowendmac.com/> and...

 Small Dog Electronics    http://www.smalldog.com | Refurbished Drives |
 -- We have Apple Refurbished Monitors in stock!  |  & CDRWs on Sale!  |

      Support Low End Mac <http://lowendmac.com/lists/support.html>

G-List list info:       <http://lowendmac.com/lists/g-list.shtml>
Send list messages to:  <mailto:[EMAIL PROTECTED]>
To unsubscribe, email:  <mailto:[EMAIL PROTECTED]>
For digest mode, email: <mailto:[EMAIL PROTECTED]>
Subscription questions: <mailto:[EMAIL PROTECTED]>
Archive: <http://www.mail-archive.com/g-list%40mail.maclaunch.com/>

Using a Macintosh? Get free email and more at Applelinks! 
<http://www.applelinks.com>

Reply via email to