Re: Intel processor at wrong speed
- From: Paul <nospam@xxxxxxxxxx>
- Date: Fri, 07 Aug 2009 23:45:43 -0400
goodwitch777 wrote:
On Aug 7, 4:53 pm, Paul <nos...@xxxxxxxxxx> wrote:goodwitch777 wrote:I would like to know if anyone knows what would cause a cpu to reduce
speed. I have a Pentium D 940/3.20 Dual core. The machine was
freezing and sluggish, and after running Belarc, I noted that the
processor was reporting as a 2.13 rather than 3.20. I reset the Bios
settings and selected the optimum settings, and it now seems fine and
is reporting correctly. I am just wondering if this is a possible
hardware problem starting with either the CPU or motherboard or if it
could have been caused by software (utility programs, etc I use Fix-it
Utils). I have a couple months of warranty left on the CPU and am
wondering if there are some diagnostics I can run to check out the
mobo and cpu. I am getting ready for a reformat on the machine, as it
has been slow.
I'm curious as to why it would be changed...as it was originally set
to 200Mhz, and is now. I don't know if software can change that. But
I am running a Biostar P4M900-M7 FE motherboard, upgrading soon to
another Biostar...TP45HP that my daughter discarded on her last
upgrade..probably upgrading my CPU as well, but want to be sure the
current config is worth saving as I have 6 puters in the house (all my
builds) that I would like to keep good parts for. I have been working
this system hard, and maybe something forced the motherboard to safe
mode, but do you know a utility to check it before my 12 months is up?
P4M900-M7 FE 7.0
http://www.biostar.com.tw/app/en/mb/content.php?S_ID=314
Well, I had a look through the manuals, and don't see a specific
recovery procedure after a crash. There is the ability to set
CPU frequency, but that should also have worked correctly by means
of the BSEL pins on the LGA 775 processor contacts. They should
have automatically indicated 200MHz.
As far as testing the system goes, I might use Prime95 to
evaluate the overall health. But that test doesn't say something
like "your system is 86% healthy". This is a non-specific test,
which creates a load on the processor, and that helps indicate
whether the computer would work properly if later loaded to
the same level.
http://www.mersenne.org/freesoft/
"Windows Vista/XP/2003/2000/NT/Me/98/95: Download p95v259.zip,
version 25.9, last updated March 15, 2009."
http://mersenneforum.org/gimps/p95v259.zip
That test program, runs a test thread per processor core.
It heats up the processor, testing the processor under conditions
that simulate 100% CPU loading. If a computing error is detected,
the test thread stops and reports the error. If the system is
healthy, a test like this should run for hours without error,
and a hardware monitoring program, one that reads out temperature,
should report a CPU temperature below 65C. 65C is a good target
for cooling effectiveness - you want the CPU cooler to work well
enough, to keep the CPU below 65C during a test run. Otherwise,
an Intel CPU could throttle itself.
When the program starts, you don't need to "Join GIMPs", as you're
"just stress testing". You can use a blended test. On my system,
where I have 2GB of memory, the program offers to test 1600MB of
memory while testing. What you select for the quantity of memory,
should not exceed the free physical memory available on the
system (otherwise, Prime95 would run slower and not be as effective).
Paul
.
- References:
- Intel processor at wrong speed
- From: goodwitch777
- Re: Intel processor at wrong speed
- From: Paul
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