5.0.5 and Celeron D - SCO
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I know I can't use a Pentium 4 but can I use a Celeron D with 5.0.5?...
5.0.5 and Celeron D
I know I can't use a Pentium 4 but can I use a Celeron D with 5.0.5?
Re: 5.0.5 and Celeron D
In article "John Smith" writes:
$I know I can't use a Pentium 4 but can I use a Celeron D with 5.0.5?
It may be a bit strong to say "can't" use a P4 on 5.0.5. For
my previous home motherboard, running 5.0.5 as well as Windows,
I selected a Pentium III based in part on the P4 not being supported
prior to 5.0.6a. I was subsequently told in a private email from a
trusted source at SCO that this was probably unnecessary, and that
the engineers had suggested that the well-known problem that
could result in 5.0.6 cooking a P4, despite the P4's thermal
protection features, was essentially theoretical in nature and
quite unlikely to crop up in the real world. The folks at
tomshardware.com did an interesting test in which they took
four CPUs (PIII, P4, and two AMD CPUs), maxed out the CPU
utilization, then completely removed the heatsink and cooling
fan to see what would happen. The PIII's thermal management
is pretty basic; if the CPU starts to overheat, it simply halts. The
P4's thermal management is much more advanced; if the CPU starts to
overheat, it reduces its clock rate to reduce its heat dissipation.
IIRC, both Intel CPUs survived this test with no physical damage.
Since the Celerons are just crippled versions of the higher-end
processors, it would be logical to assume that any compatibility
issues with a Pentium-family CPU would normally also afflict the
related Celeron. I haven't been keeping up with all of the various
CPU variants but AFAIK the Celeron D is a crippled P4, so it would
also not be supported.
BTW, at least one of the patches for 5.0.5 adds support for
"the latest" (at the time of the supplement's release, of course)
microcode updates to the P4. So while 5.0.6 has a few supplements
dealing (at least in part) with P4 issues such as thermal management
and throttling and those supplements are not available for 5.0.5,
there must be at least some support for at least some P4 CPUs
in 5.0.5, else there would be no need to release supplements
handling microcode updating.
As it happens, my previous PIII motherboard and/or CPU died
before I got around to upgrading to 5.0.7. I replaced it with a
3.06 GHz P4, and ran 5.0.5 on that for, hmm, I think about half a
year before I finally upgraded to 5.0.7. No damage to report.
Disclaimer: I am not recommending that you try this. If you
do try this, and problems (potentially severe and/or expensive
problems) crop up, don't say I didn't warn you!
Stephen M. Dunn
>>>----------------> http://www.stevedunn.ca/ <----------------<<<
Say hi to my cat -- http://www.stevedunn.ca/photos/toby/