[G4] System profiler and PC-133 RAM

[Dave March]

The old original PC100 can't run on a 133 mbps bus
(unless the system automatically dowshifts for it,
maybe?), but newer PC133 WILL run at 100 on a system
set for 100 mbps.  They're backward-compatible that
way.

Could it be possible that your bus is really running
at 100 mbps, for some reason?  If so, that might be
something to tweak in Open Firmware (in which case, I
can't advise you).  But the relationship between bus
speed and processor speed may be important to know
before making any changes.  I'd do some searches on
http://www.xlr8yourmac.com/ and elsewhere, to be sure.

Best o' luck.


--- nagable at comcast.net wrote:

> Hi everyone,
> 
> I have a fussy computer (Quicksilver 2002 800 MHz
> originally, upgraded processor to Sonnet 1.8GHz
> dual).  I get a lot of freezes, usually while on the
> Internet or in the e-mail app on the Internet.  I
> ran disk repair from another startup disk (fixed a
> lot of stuff) and disabled Classic, but still get
> the ocasional freeze--it fact i was kicked out twice
> while writing this.
> 
> I thought the problem might be because the System
> profiler reads the RAM at PC100.  It's OWC RAM,
> probably about 2 years old.  I didn't look at the
> chip, just figured maybe I bought cheap RAM to years
> ago and settled for PC100.   I called OWC Tech
> support and asked if that might cause a problem and
> they said it might, so I ordered 3 more PC 133 512MB
> chips, thinking I might sell the PC-100 to old iMac
> owners.
> 
> The chips came, I installed them and checked the
> profiler.  It still read that the chips were PC-100!
>  I looked at the labels on the chips I removed, and
> they, too, were PC 133.
> 
> What's up with that? Any ideas?  OWC tech support is
> next on my list of calls.  I don't need 5 chips for
> three slots.
> 
> Nate
> _______________________________________________


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