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View Full Version : IT7 and CPU Bus speed



shadco
07-15-2002, 05:40 PM
Does anyone know if it is posible to run a 133 P4 at 100 instead?

It seems that this would allow use of the 3:4 CPU/DRAM ratio allosing the ram to run significantly higher.

With my 1.6a I can runthe mem at 220Mhz where I can only get around 180 with my 2.26a using hte 1:1 ratio.

Shad

GOD
07-16-2002, 01:07 AM
Originally posted by shadco
Does anyone know if it is posible to run a 133 P4 at 100 instead?

It seems that this would allow use of the 3:4 CPU/DRAM ratio allosing the ram to run significantly higher.

With my 1.6a I can runthe mem at 220Mhz where I can only get around 180 with my 2.26a using hte 1:1 ratio.

Shad
yes...
that is the only way to use 3/4 option.....

JBELL
07-16-2002, 01:10 AM
Originally posted by GOD

yes...
that is the only way to use 3/4 option.....

it is possible but how do you do it? I am curious on this one myself...

GOD
07-16-2002, 01:18 AM
Originally posted by JBELL


it is possible but how do you do it? I am curious on this one myself...
set the H/W strap to low..
that`s it...
and just clock your FSB in ....

GOD.....:)

shadco
07-16-2002, 07:02 AM
It sure does work.

Here is some detail.

Mem @ 175 1:1 (http://mywebpages.comcast.net/ddr333/it7/IT7175-175mem.jpg)

Mem @ 175 3:4 175/234 (http://mywebpages.comcast.net/ddr333/it7/IT7175-234mem.jpg)

CPU ID 175-175 (http://mywebpages.comcast.net/ddr333/it7/cpuid1-1-175.JPG)

CPU ID 175-234 (http://mywebpages.comcast.net/ddr333/it7/cpuid3-4-175.jpg)

Which way would you run it.

I can get a teensy bit more outta the CPU at 1:1 aircooled but I'm not sure it's worth the trade off on mem bandwidth.

Shad