alright i know ive already posted about this problem, but it didint get solved. After reading over that post i realized that i didint make things to clear. The problem is that i can only run my ram in sync with my FSB, if i try to change the ratio from "auto" or something like 3/3 to something like 5/4 it wont let me, it wont even post....or something like 4/3 it wont post.... even when i play with the multiplyer. i tried changing all the settings the the latency back to stock, and try it but it still didnt. I know my barty will go to atleast 240 fsb, so i want to get the most out of this pc2700 i can, college is commin up and i dont really have any extra cash for some new stix of mem. yall have any new ideas???

Quote: Originally Posted by WDoG alright i know ive already posted about this problem, but it didint get solved. After reading over that post i realized that i didint make things to clear. The problem is that i can only run my ram in sync with my FSB, if i try to change the ratio from "auto" or something like 3/3 to something like 5/4 it wont let me, it wont even post....or something like 4/3 it wont post.... even when i play with the multiplyer. i tried changing all the settings the the latency back to stock, and try it but it still didnt. I know my barty will go to atleast 240 fsb, so i want to get the most out of this pc2700 i can, college is commin up and i dont really have any extra cash for some new stix of mem. yall have any new ideas???

it might not be the ram bro! whats your voltages on the Vcore, chipset, ram? i have a barty an i could not git it at 240fsb the most i got was 225 an i had to run the muitlplyer at 6 to even git that! the most i can git out of mine was 12x222. at a 3/4 ratio, 2.03 Vcore 1.6Chipset. sorry for not being able to help out much

wel i dont remember my voltage when i was posting at 240 fsb, but i had the multi WAY down, and i dont remember what it was at either, but my ram is running at 2.9 the chipset is 1.9 i think....or is that the agp....ill have to look, at theGF's house right now checkin my pimprig. anyone else got any ideas??

Is that a locked Barton???..........if it is, you might be pushing the FSB too much as the Vcore can't be changed........if you got the M model.......then you can make your core adjustments once you max out the fsb.....but I believe your memory is holding you back also........you can upgrade to some PC-3200 with some short timings......

What FSB speed do you desire? Although running sync FSB:DRAM would be optimal, you can use ratio's to run any FSB:DRAM speed you wish, as you know.

highperf - no its not a locked barton, i bought it a while ago before they got super gay and started locking them
tek - what im trying to do is get higher than the 218-223 that most everyone is able to get with the 2500+, cooling is not a problem, so i know i can push it higher, but my mem is holding me back. yes, i know that i can run the ram:fsb OUT of sync, but the problem is whenever i change it wont even POST. i was wandering if anyone else had any problems with thier ratio??

ive got pc3200 and i still cant get past 250 fsb on the nf7, it loads but freezes, no matter what my vcore is, and this is even with a low multi

Ok, I have been reading your manual and here are a couple of things to check:

RAM:

They say to install the modules from slot 3 to slot 1, so a single module should go in Slot 3.

CPU Settings:

The manual is a little confusing at this point-
There is a refrence in the manual that says you may adjust the H-Clock from 100-237 mhz with the default setting of 100mhz . But I saw nothing about details on this default setting. I take it that you may specify other defaults settings then 100, and this is how you are getting the option to go to 250mhz and maybe over ?

Please elaborate, the manual is weak here.

Ok, now your sig says your currently running your RAM at 218mhz on the clock, synchronous with the CPU. So that says it will take at least that speed.

Let's play with the CPU/RAM ratios to see what this pans out to for the CPU:
Here is the math, so you can work it out.

You have a known high frequency for your RAM of 218, so take 218 and divide is by the second number in the ration, then multiply the result by the first number and this is what you set for the CPU frequency in order to stay at 218 with the RAM.
We will work with 6/5 for this example. Divide 218 by 5 = 43.6 X 6 = 261.6. 261mhz H-Clock is going to be pretty high, let's play with another divider.

Let's see what 6/4 does. 218 / 4 = 54.5 X 6 = 327mhz, only getting worse that way.

Let's reverse it and use this math with a 4/6 ratio. 218 / 6 = 36.3 X 4 = 145.3 Ok, now we are getting somewhere, let's look at the CPU multipliers and see what this gets us.

The highest available according to the manual is 22 so 145 X 22 = 3190mhz for the CPU. I think you have room to play here.

Let's start with something more reasonable for the Multi to begin with, say 2 Gig.

2000mhz / 145 =13.8 so the closest multi is 14.

Try setting you H-Clock frequency to 145, Multi at 14 = 2030mhz for the CPU, and use the 4/6 Ratio for the memory which should give you a FSB of 217.5 and 435mhz DDR.

Remember, you don't want more voltage to the RAM or CPU then necessary to stabalise them. I hope this helps, and that I have it figured out right

If this works, first get it to boot, then lower your voltages to find their sweet spot, "lowest stable".

Then raise the multi a step at a time and increase VCore as needed. This is time consuming, you should also bench it each time, or stress it in some way to test for stability before bumping it up again.

Luck

Quote: Originally Posted by WDoG highperf - no its not a locked barton, i bought it a while ago before they got super gay and started locking them tek - what im trying to do is get higher than the 218-223 that most everyone is able to get with the 2500+, cooling is not a problem, so i know i can push it higher, but my mem is holding me back. yes, i know that i can run the ram:fsb OUT of sync, but the problem is whenever i change it wont even POST. i was wandering if anyone else had any problems with thier ratio??

Did you try the 6/6 divider.
NF7-s has some flakey stuff going on in the lower dividers...
...remember if you run the setting up then use the divider to run asynce you are gaining nothing in bandwith...250 at 6/5 is still only 208 for example.
Your Barton is unlocked so you don't need to run asynce.
Just find the highest stable FSB for the RAM, then adjust the multilier acordingly...I would start it at 10.
So,
run the divider at 6/6 it's more stable in my findings. start at 200 and bump it up from there. Your Mushkin is tough it should go. I have had a sinlge stick of XMS 2700 at 2.9 do 232 synce
Your starting speed will be 2.0ghz easily obtained at stock voltage...good luck Bro...be patient and wear your lucky shirt...

EDIT: Ic is correct I always think of fractions...250 at a 6/5 divider is 208

I think Zennzo has a point, although I think he did the math wrong on his example.

My understanding is H-Clock divided by first number of ratio, multiplied by second number = RAM frequency.

But his approach is the one you should shoot for.

Start with a lower multiplier, a synchronous ratio, and base VCore, VDimm. This way you issolate your RAM.

Steadily bump the H-Clock frequency up the range and adjust voltages only when needed and see just what your memory can handle. Once you top out the memory, all you have to do is play with the CPU multi and VCore.

Thanx for the correction...see above post...

Oh !, you are welcome my friend.

(Shades of chipmunk cartoons, "After You, Nooo, after you !" )

ok ive been following the thread and im having a similar prob (sorry to steall thread )
but even when i get my divider to where my mem runs at 316 and my cpu runs at 250 i still get froze up, even when i jump my vcore up from 223x10 1.65 to 225x10 at 1.85, now it should'nt take that much juice to shoot it up should it?? and ive had it to 2.5ghz so i know its not maxed out. have i hit the nf7 berrier?

ok well i tired a different ratio, i relaxed my timings some, 2.5,4,4,7 so my memory would be at its most stable level...ive also been running my system at 200 fsb, just beucase i dont wanna push it to hard during testing. so my fsb is 200x11 giving me a 2200, or 400 fsb. my ram is running n'sync (haha i know thats gay) with the fsb running at 400 (this is 333 ram). i tired the setting at 6/5 which made the ram back to 333, and it would POST, o man i thought it was a miricle. then as soon as i raised the FSb any it wouldnt even post.....maybe its the ram that is having the issue, i dono....
i'll also take a look at what slot the ram is in, im pretty sure i have it in 3 becuase i remember reading that same thing in the manual.
thanx for the help piper and zennzzo. when i get home ill play with it a little more, then update

I had a few threads on this subject back when I had my NF-7S, something in there might ring a bell and help you out

http://forums.pcapex.com/showthread....ghlight=500FSB

http://forums.pcapex.com/showthread....ghlight=500FSB

http://forums.pcapex.com/showthread....ghlight=500FSB

thanx, ill take a look at those

well guys, sucess, sorta....
i saw that there was a bios 23 update, so i decided to update justbecause i wanted to update. for the sure hell of it i tired to changed my ratio's again. IT WORKED!!! so i could run out of sync. runing at 230 x 10.5!!! it boots into windows and such, but prim95 wont run even once cycle...ill update when i get home

could it possibly be a problem with prime95?? beuase im on it right now and no restarts or anything....