clock multiplier = CPU ratio?

I've got a Barton 2800+ and a Gigabyte 7NNXP mobo - AMD uses the term clock
multiplier (and recommends 12.5x166mhz) and the Award BIOS on the mobo has
the term "CPU ratio" which doesn't have an option of 12.5 (12 and 13 are
there though).
So is the CPU ratio the same as clock multiplier and I can set it to 12?

Also, a bit of weirdness - regardless what I set the CPU ratio to, the boot
screen reports the CPU as "AMD Athlon XP running at 1250mhz" which is
patently absurd. Is the 1250 a hint to the 12.5x?

And any ideas how (this is under Linux btw) I can find the real speed it's
running at?
--
Jeff Shultz

"Jeff Shultz" wrote in message
...
I've got a Barton 2800+ and a Gigabyte 7NNXP mobo - AMD uses the term
clock
multiplier (and recommends 12.5x166mhz) and the Award BIOS on the mobo has
the term "CPU ratio" which doesn't have an option of 12.5 (12 and 13 are
there though).
So is the CPU ratio the same as clock multiplier and I can set it to 12?


replace ration with 'multiplier', ratio is something totally different which
you dont wan to mess around with yet.
you can probably safely set it to either 12 or 13, your board probably
doesnt nativly support the barton core(?) (which doesnt obey the normal MHz
rules)


Also, a bit of weirdness - regardless what I set the CPU ratio to, the
boot
screen reports the CPU as "AMD Athlon XP running at 1250mhz" which is
patently absurd. Is the 1250 a hint to the 12.5x?


1250MHz is the default speed on most boards, it will stay at this untill you
set it to the correct speed

isnt there some presets you can choose from instead of setting it manually?


And any ideas how (this is under Linux btw) I can find the real speed it's
running at?
--
Jeff Shultz

On Tue, 02 Sep 2003 10:09:00 -0700, Jeff Shultz wrote:

I've got a Barton 2800+ and a Gigabyte 7NNXP mobo - AMD uses the term clock
multiplier (and recommends 12.5x166mhz) and the Award BIOS on the mobo has
the term "CPU ratio" which doesn't have an option of 12.5 (12 and 13 are
there though).
So is the CPU ratio the same as clock multiplier and I can set it to 12?

Also, a bit of weirdness - regardless what I set the CPU ratio to, the boot
screen reports the CPU as "AMD Athlon XP running at 1250mhz" which is
patently absurd. Is the 1250 a hint to the 12.5x?

Yes, it's a big hint. Your multiplier is 12.5 now, but your fsb is set to
100MHz (12.5x100=1250). Set your FSB to 166MHz.

And any ideas how (this is under Linux btw) I can find the real speed it's
running at?

cat /proc/cpuinfo

--
Abit KT7-Raid (KT133) Tbred B core CPU @2400MHz (24x100FSB)
http://mysite.verizon.net/res0exft/cpu.html

"Jeff Shultz" wrote in message
...
I've got a Barton 2800+ and a Gigabyte 7NNXP mobo - AMD uses the term
clock
multiplier (and recommends 12.5x166mhz) and the Award BIOS on the mobo has
the term "CPU ratio" which doesn't have an option of 12.5 (12 and 13 are
there though).
So is the CPU ratio the same as clock multiplier and I can set it to 12?

Also, a bit of weirdness - regardless what I set the CPU ratio to, the
boot
screen reports the CPU as "AMD Athlon XP running at 1250mhz" which is
patently absurd. Is the 1250 a hint to the 12.5x?

And any ideas how (this is under Linux btw) I can find the real speed it's
running at?
--
Jeff Shultz




Your FSB is set to 100. 100x12.5=1250. The board is calling the right
multiplier, but you will probably have to set the FSB either in the BIOS or
with a jumper on the board. Does that board support the 166 FSB Barton?

bluestringer

Wes Newell wrote:

On Tue, 02 Sep 2003 10:09:00 -0700, Jeff Shultz wrote:

I've got a Barton 2800+ and a Gigabyte 7NNXP mobo - AMD uses the term
clock multiplier (and recommends 12.5x166mhz) and the Award BIOS on the
mobo has the term "CPU ratio" which doesn't have an option of 12.5 (12
and 13 are there though).
So is the CPU ratio the same as clock multiplier and I can set it to 12?

Also, a bit of weirdness - regardless what I set the CPU ratio to, the
boot screen reports the CPU as "AMD Athlon XP running at 1250mhz" which
is patently absurd. Is the 1250 a hint to the 12.5x?

Yes, it's a big hint. Your multiplier is 12.5 now, but your fsb is set to
100MHz (12.5x100=1250). Set your FSB to 166MHz.

It's set there. At least it says it's set there. Hmmm.

And any ideas how (this is under Linux btw) I can find the real speed
it's running at?

cat /proc/cpuinfo

Oooooh! Thank you!
--
Jeff Shultz

Jeff Shultz wrote:
Wes Newell wrote:


On Tue, 02 Sep 2003 10:09:00 -0700, Jeff Shultz wrote:


I've got a Barton 2800+ and a Gigabyte 7NNXP mobo - AMD uses the term
clock multiplier (and recommends 12.5x166mhz) and the Award BIOS on the
mobo has the term "CPU ratio" which doesn't have an option of 12.5 (12
and 13 are there though).
So is the CPU ratio the same as clock multiplier and I can set it to 12?

Also, a bit of weirdness - regardless what I set the CPU ratio to, the
boot screen reports the CPU as "AMD Athlon XP running at 1250mhz" which
is patently absurd. Is the 1250 a hint to the 12.5x?


Yes, it's a big hint. Your multiplier is 12.5 now, but your fsb is set to
100MHz (12.5x100=1250). Set your FSB to 166MHz.


It's set there. At least it says it's set there. Hmmm.

Maybe your memory is running at 166, but your FSB would seem to be
running at 100.