Just recently assembled a new Celeron D computer
and I saw the same, turn on Turbo and it fails, even
when not overclocked. I haven't looked into it much
further yet, because the performance is pretty good
regardless. Eventually I overclocked it by some 40%,
2.4 Celeron D @ 3.4, with stock HSF and a minor increase
in Vcore. The CPU temperature hardly ever goes above 50C,
with QFan disabled - don't need it since my Antec PSU
is quiet enough. I also had to disable Spread
Spectrum modulation, not sure why it defaults to
enabled, not sure why this setting even exists.

My memory is Corsair Value Select, 2x512. It's
running in dual mode, and my memory benchmarks
are just fine for P4 class. All in all it's performing
comparable to a 2.9GHz Northwood, which is normal.
I'm not sure if I even need Turbo.

How do you tell if Turbo is on or off when it's
set to Auto in BIOS?



"Johnny" wrote in message ...
This is a repost as the other didn't appear so if it pops up twice, sorry.

I posted a while ago the dismal performance I'm getting with this board and
a Prescott 3.0ghz cpu with 2 x 512K crucial 2-2-2-5 ddr400 memory. I've
noticed the passmark cpu tests give significant differences but not entirely
sure if that's not unusual - is it possible the cpu or motherboard is faulty
even though the system works albeit relatively slowly. This thing has me
totally flummoxed and perplexed. I've swapped out a power supply from
another machine with no change (don't know why but thought it might be a
power issue). I haven't got access to another 800FSB cpu to compare and not
sure I'll get any sense out of the tech support as it is actually working
which is frustrating in the extreme. If I select turbo mode the board dies -
it literally blacks out completely requiring a hard power off to get bios
back with the post message that overclocking failed??? I'm really getting
****ed off with this now - is it likely the cpu or mainboard are faulty or
just a combo of the two, who knows?