'Bob Johnson' wrote:
| I'll try that
|
| Do the memory settings look oK?
_____
The clock for DDR2 memory is 1/2 the FrontSide Bus Clock. If your CPU is
running at default with an 800 MHz FSB, then the 1:2 ratio is correct when
your DDR2-800 memory is running at stock speed; the memory clock is 1/2 the
CPU clock. a 1:2 ratio. Before early 2007 not only was there no official
specifications for faster memory, there was no faster memory available at
prices ordinary mortals could afford. In March of 2007 2 X 1 GByte PC8500
(DDR2-1066) memory cost from $250 to $400.
From what you report, your DDR2-800 memory is operating at its rated speed.
As Aretha Franklin sings, re re re re... read, re-read, and re-re-read the
explanations of the relationships among clock speeds, FSB speeds, DDR2, and
Core 2 multipliers. There is nothing wrong with your memory settings - the
latencies are relaxed, and it is operating at spec for DDR2-800.
Evidently you are misunderstanding some of the settings in the BIOS in your
Gigabyte motherboard. I'd try to help, but downloading a copy of the manual
from Gigabyte seems to be only intermittently possible (one of the reasons
I've never bought a Gigabyte motherboard.) As you may have realized from
reading posts in this newsgroup, different manufacturers use different BIOS
parameter names. What you want for a start is to MANUALLY set the CPU
multiplier to 11X (the default) and the FSB clock ( or CPU host frequency or
whatever arcane term Gigabyte has deemed necessary to inflict upon their
customers) set to 200 MHz and have the MEMORY clock set to a ratio (from
what you have posted) is 1:2. The first step to overclock is to change
Gigabyte BIOS parameter to set the CPU host clock to 210 MHz. This should
give you a 210 MHz X 11 = 2310 MHz CPU frequency, a very mild overclock that
should require no mucking about with the CPU core voltage. The DDR2-800
memory will also be only mildly overclocked, and with the relaxed timings
you report (5,5,5,15,2T) there should be no memory related problems.
Make sure you keep track of the CPU core temperatures using the Intel TAT
applet. Under low load the reported temperatures should be ~ 35 C or less.
As long as the reported temperatures are below 65 C there should be no
automatic throttling by the Intel circuits. You will want to disable this
automatic throttling - the CPU is still protected from damage by overheating
by built-in thermal shutdown that can NOT be disabled, and by the fact that
when the CPU overheats, it eventually starts generating errors that will
lock up the system and stay that way until the locked CPU, no longer doing
anything, cools down with no harm done (this will likely happen at a
temperature at which GPUs are as happy as a dead pig in the sunshine.)
Once you understand what the terms mean in your Gigabyte manual and in the
BIOS, then you can begin to try some real overclocks. But until you do,
getting into things like increasing the CPU core voltage and changing the
Memory clock : CPU clock ratio will REALLY make you pull you hair. Those of
us who have been overclocking for ten years or more had a much easier time
in beginning - there were VERY few things you COULD set manually - FSB speed
and CPU core voltage; and sometimes not even that much, just a choice
between forcing the FSB to either 66 MHz or 100 MHz.
"Bob Johnson" <me.DeleteThis@getlost.com> wrote in message
news:yLydnbIqULCMwc_anZ2dnUVZ_v2pnZ2d@comcast.com...
| I'll try that
|
| Do the memory settings look oK?
|
| thx
|
| bob
|
|
|
| "Fishface" <invalid.DeleteThis@ddress.ok?> wrote in message
| news:kRs4j.4464$vB.1930@trnddc05...
| > Bob Johnson wrote:
| >
| >> Update:
| >>
| >> I don't trust CPU-Z. Occasionally it did show the right core speed but
| >> then bounces back to the wrong (6X) multiplier.
| >
| > It's probably right. That's the Intel SpeedStep.
| > http://en.wikipedia.org/wiki/Speedstep
| > In your advanced bios features, you can disable C1E and EIST, if
desired.
| >
|
| >> Stay informed about: Core 2 4500 Won't OC :( 
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