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2.62 stable - Page 2

post #11 of 21
Thread Starter 
theduke, my htt is up at 250, and im running the 216 MHz divider, which should be like ddr433 if you were running your ram at stock speeds. so my CPU-z says false because if it was 125x2 i'd only be getting 250 MHz FSB instead of 250x2.(whatever ddr433 divider runs at). my HT is at 3x so i have no problemo with it. kinda like they said before, when there's 8 cars on an 8 lane highway, why widen it?
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post #12 of 21
Quote:
Originally Posted by buttmud
theduke, my htt is up at 250, and im running the 216 MHz divider, which should be like ddr433 if you were running your ram at stock speeds. so my CPU-z says false because if it was 125x2 i'd only be getting 250 MHz FSB instead of 250x2.(whatever ddr433 divider runs at). my HT is at 3x so i have no problemo with it. kinda like they said before, when there's 8 cars on an 8 lane highway, why widen it?
I've not known it to misreport lately
Have you checked if it's accurate @ default?
Well, you can run a 4x up to 250MHz beyond that a 3x is needed.
Are you running your RAM at 166MHz vs the default 200?
    
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post #13 of 21
Thread Starter 
ok, CPUz is funny. i drop my ram divider to like 166 instead of 216 and it brings the HTT (FSB or whatever you wanna call it) up and reads like 201 in cpuz, but it performs crappier in superpi. and i was running at a 216 divider to speed up my ram. so whats the next step, because cpuz isn't accurate for me for some reason....

and i didn't say you misposted, i'm just trying to fix an innocent mistake 125x2 = 250. not my true fsb speeds (266 or something liek that x 2)
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post #14 of 21
Thread Starter 
oik, here's a SS of my memory. why does it say CPU/21 fsb 125? my divider is set at 216. does amd64's not like the dividers goign to the other side? i know that 166 and 133 will drop your ram down, but setting it up is supposed to make the ratio speedier...like proc at 2.62 @ 10.5x multi w/ a 250 HTT 3x HT and a 216 divider. help me if i'm wrong here....

1.63vcore
2.85vdimm (can't go any higher here)
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post #15 of 21
I can say many do not recommend .5 multiplyers.
It could be your running your RAM to high...
Set your CPU multiplyer to 6 or 7 to under clock it and then work the HTT (CPU bus) up till you get errors in the memory. That will determine the RAM's max speed to work with.
A quick test as described below with memtest86
Complements of ncsa
When you boot to memtest it auto starts - pressing C 1 3 x <enter> <enter> starts to loop the test where x is the test number.

Once you have done this it will only loop that test until reset or configured for another test.

Tests 5 & 6 are quicker but 8 is more accurate once you start to settle down the OC and the timings / Vdimm.



"and i didn't say you misposted" ... NP just a little miscommunication
    
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post #16 of 21
Quote:
Originally Posted by The Duke
I can say many do not recommend .5 multiplyers.
It could be your running your RAM to high...
Set your CPU multiplyer to 6 or 7 to under clock it and then work the HTT (CPU bus) up till you get errors in the memory. That will determine the RAM's max speed to work with.
A quick test as described below with memtest86
Complements of ncsa
When you boot to memtest it auto starts - pressing C 1 3 x <enter> <enter> starts to loop the test where x is the test number.

Once you have done this it will only loop that test until reset or configured for another test.

Tests 5 & 6 are quicker but 8 is more accurate once you start to settle down the OC and the timings / Vdimm.



"and i didn't say you misposted" ... NP just a little miscommunication
duke i didn't know you were a forum director, congrats on that. anyway, why do people not recommend .5 multi's? i've been wondering for a while.

also what kind of temps are you running at load? would raising the vcore help out a bit, or just add unneccessary heat at this point.
post #17 of 21
Thread Starter 
well you were right about the 10.5x multi. it messed with my goods. i have it 265 1:1 1.65v vcore and it just ran a record superpi 1m for me i'm going to prime95 it over nite and see what its like. btw i run 42c on full load 4 hours long.

and i know that my max ram speed is ddr533, already figured that one out i've been workin in this crap for like 2 weeks and already went through one MSI neo2 motherboard
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post #18 of 21
those load temps are good, so if you pass prime then id call that a pretty solid OC, good job.
post #19 of 21
.5 dividers aren’t recommended because they screw with the dividers.

Since dividers are whole numbers they will round up a .5 divider and give you a lower memory speed.

Here's an example from a post on DFI street.

(DRAM frequency) X (RAM divider) = CPU frequency

Dividers are all whole numbers, so if you use a half multiplier your memory speed is calculated by using the next highest whole number.

An example...

200X10 = 200/10 (divider) = 200MHz

200x10.5 = 2100/11 (next highest divider) = 190MHz (effective memory frequency.)
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post #20 of 21
thanks TDA, that makes sense. (my mobo does stuff different than most, stupid VIA so i guess that i didn't think about that like that before) i wish i had a better mobo and a unlockable multi on my barton, but i'll upgrade soon enough, and what an upgrade that will be.
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