[Solved] HELP. Can I unlock non BE phenom X4 9850 cpu multiplier?

Is it possible to unlock the cpu multiplier on a non Black Edition Phenom X4 9850? With it stock it has 2.51gb, but the best I can do with the locked multiplier is 2.63gb that is stable. I say stable because when I try to go further, in the POST BIOS screen it tells me that the boot fails and to go back to the BIOS and set the default settings. But it also says that I can press F1 and it will boot up. so I have gotten it to 2.88gb but thats just from pressing F1 at the boot failed screen. So I only assume that it means that its not stable. This is my first overclocking but my cpu multiplier can only go up to 12.5 and when I research people talk about overclocking with at least a 15 multiplier. So I figure that with a higher multiplier i can make it more stable. Can someone please help.


PC specs:

Asus M2N-SLI
AMD Phenom X4 9850
Hynex 4gb 800 Memory
GeForce GTX 260

we can not unlock multipliyer of a locked one.
looks like you can only hit 208 mhz fsb
you can hit 275mhz of fsb ie upto cpu will be at 3.4ghz.
Change this setting in bios in ram timing
tRFC1 to 195ns or 327.5ns
TCL to 6
TRCD to 6
TRP to 6
TRAS to 18
TRC to 24
and set fsb at 230 for initial testing and ram at 400mhz
also reduce nb multiplier by 2 (you can use cputweaker)
please keep posting for further guidence

edit: replace trfc1 with trfc0 in above settings

@truegenius-->How can you assume that those RAM settings will work....

Simply put, No you cannot unlock the multiplier on that chip...If you have the option to set your RAM speed to 667 MHz then raise the FSB to 240 that will give you...RAM @ 800 MHz and CPU @ 3.0 GHz...Then you are gonna have to make sure your NB an HT speeds are set manually to where it will stay close to spec. I think 1000 MHz or 1600 MHz...Also, you are gonna have to bump up the CPU voltage accordingly...CAUTION: TAKE EXTRA CARE IN VOLTAGE ADJUSTMENT...BABY STEPS !!!!

those ram settings are only for a begning and to keep ram in its limit so we can find the limit of cpu.

And it is not a assumption, it is the result of attempts of overclocking of my system, and those settings works with my sys which have non-BE cpu, but i can hit 275mhz fsb in it with those settings

and trfc1 (at 195 or 375.5) is the main setting which will allow user to set higher fsb, and other are only to relax ram

also i was waiting to share these settings ever since i got them, and this seems to be the right case to share that.

Thanks for the replies everyone and yes its true that even though we have the same hardware that they might not produce the same results, but it doesnt hurt to try. I will be trying these recommendations as sonn as I get some free time and will post back. Also if I set fsb over 210 then I will get a boot fail at the BIOS screen, anyone know whats thats about?

yes it is dimm0 in cputweaker
you cannot pass 240 without a voltage increase, so increase some voltage and keep monitoring your temps
also decrease your nb multipliyer by 1.

use cpu tweaker in cpu tab their is a section named uncore in which their is a multiplier (i think it is at x9) reduce it by 1 and apply , it will request restart.
And then you are good to go

are you monitoring your temps?
If yes let me know what you are having in temp reading

one more thing, trfc0 is the setting that i was talking about (my mistake)

search for trfc0 in bios's ram timings because cpu tweaker does not help in this setting (helps in change but not in overclock)

Also,getting past 240 fsb would involve up cpu voltage right? well I had it on 1.40 and my temps was like 46 C. Well I looks at the specs for my cpu and it says "Thermal Design Power 125 W and Thermal Specification 61 °C. Should I assume that my cpu handles up to 61 C or most likely 55 C before overheating?

that is due to cputweaker attempts some settings to apply dynamically, and software overclocking is less stable than that of bios overclocking, and freezing means you are over doing

also do not use startup of cputweaker that is uncheck this option 'save these timings and apply at next boot of windows'

can you post tour all stock settings and what settings you are using

their is no pic, use photobucket.com

cpu tweaker and bios cannot work together and thus causing fail boot, make 2-3 restarts to use other one.

1st use bios to change these settings
ram timings
cl 6
trcd 6
trp 6
tras 18
trc 26
ddr2 voltage 2.20v
memory clock 667mhz
save and reboot

2nd use
nvidia ntune to set ht at x1
apply and close

3rd now use cputweaker and run it to change these settings
uncore multiplier x8
cpu multiplier at x12 (in cores section)
cores and uncore voltage 1.35v
apply and close

4th use nvidia ntune
set fsb at 240
ht at x5
apply and close

thats all

and perform some stability tests (prime 95 small ftt)
do a restart after every stability test
and find max clocks under 60'c , and at 1.35 v max

note you will have to do step 2,3 and 4 every time you restart

can you list the things that you can change and how much with bios that i have included in those steps

cputweaker seems incompatible with some bios change

are you using startup option of cputweaker?

Ok well I can tweak all of those memory timings accept for the ddr2 voltage. The options are 1.8, 1.85, 1.9, 1.95. I can change the HT from x1- x5. I can change cpu multiplier up to 12.5 and cpu voltage in increments of .25. I CANNOT cahnge the uncore multiplier or the uncore voltage. And obviously I can change the fsb, so I guess that should be all of it. And sorry for replying back so late, I've just been busy with work. Whatever you can help with is appreciated as well as what you've already helped with.

I can put memory clock at 667, is that fine? the next lowest is 533. But I will try anyways, thanks

This topic has been closed by Mousemonkey