kandinsky63 said:
i set the DRAM frequecy in BIOS to 200MHz . However, the CPU-Z (CPUID) app
still show, under the Memory tab, 166.7MHz. Dont understand why its
showing this value and not 200MHz???
Any advice?
First, it is an Asrock board. I own one by the same manufacturer, and the
BIOS programming of motherboard resources is not done properly.
I see two possibilities.
1) The clock generator or memory dividers don't support DDR400 at all.
To test, install just *one* stick of memory. Boot up and check
CPUZ. Does a BIOS setting of DDR400 result in CPUZ showing the
correct frequency ? If DDR400 is delivered under those conditions,
then you know the clock generator or internal memory clock synthesis
work at that setting.
2) The motherboard has integrated graphics. There have been some
Northbridges with integrated graphics, where there is an interaction
between the GPU clock and other clock choices. If you were to use
a separate graphics card, perhaps the restriction would be lifted.
Whether this idea is worth entertaining, depends on the results
of (1). If the motherboard never runs at DDR400, whether one or
two sticks of memory are used, then perhaps using a separate
graphics card would make a difference.
Other than that, you are at the mercy of the Asrock BIOS programmers.
On my board, a number of features are disabled, which I've had to
work around by other means. One of the worst crimes in my Asrock
BIOS, is the clock generator is not programmed properly. Asrock
changes from a RealTek clock generator, to another brand, on the
assumption they were pin for pin compatible. They aren't compatible,
and the clock generator is not programmed correctly as a result.
On my board, I cannot use manual frequency settings which require
programming the clock generator.
If the BIOS chooses to override your choices in the Setup screen,
there isn't much you can do, practically speaking. The easiest thing,
is just to live with the DDR333 choice.
Paul
