need help oc brisbane 3600+

[numbskull77]

dunoe y i already put my voltage to 1.280 and i still can't get over 260 x 9.5. only run stable now at 255 x 9.5. do i still need to add more voltage?
using Biostar TF7050-M2 , PC5200 DDR2 667 2x1GB

 

[4Ryan6]

What are your temps?

Monitor your temps, increasing voltage increases temps, if you're having to ask this question, you probably don't need to be OCing in the first place!!! But its your money.

 

[numbskull77]

i am using stock cooler for time being, will try chnage to a better cooler... using kingston 667 1gb x2 pc5300

 

[1Tanker]

dunoe y i already put my voltage to 1.280 and i still can't get over 260 x 9.5. only run stable now at 255 x 9.5. do i still need to add more voltage?
using Biostar TF7050-M2 , PC5200 DDR2 667 2x1GB

What's your HT multiplier at? Default should be 5, but 5x255=1275"FSB"...way too high. 4x255=1020...pretty-much near the limit. Generally, you don't want the "FSB" going much over 1000MT/s(MHz), and ~1050< seems to be tops for all but the luckiest. Therefore a multi of 3x255=765...a little low, but will be stable, and not hurt performance. GL

 

[1Tanker]

i am using stock cooler for time being, will try chnage to a better cooler... using kingston 667 1gb x2 pc5300

The RAM speed won't hurt your overclock, it'll just hamper your performance some.

 

[numbskull77]

so do i need to modify any ram setting in my bios?

 

[Athalus_nubie]

Here is a good guide for OC AMD K8 CPUs
Read it all!
any questions after that, then ask away ;p

http://www.xbitlabs.com/articles/cpu/display/oc-guide.html

EDIT: i didnt put the link in ;p Duh

 

[numbskull77]

like wat u mention abt the link there is something i quite dun understand abt this http://www.xbitlabs.com/images/cpu/oc-guide/p7.jpg --> is there any further guide on this? and oso at the overclocking software, may i noe y my overclocking software provided along with my tf7050-m2 mobo seems locked for me, looks impossible for me to adjust the fsb frequency. even i use third party software like clockgen, there is no option such as PLL setup for me to adjust the cpu speed... please advise

 

[Athalus_nubie]

http://www.diy-street.com/forum/showthread.php?t=28049
Here is a very detailed guide/explantion for dfi boards in particular. that picture shows all your memory timings, part of the reason you are hitting a wall with your OC is because your timings are too tight for the speed you are trying to run your RAM at, the guide tells you how to adjust your CPU/FSB ratio, by adjusting that you will take stress off the RAM and hopefully progress your OC.

 

[numbskull77]

how abt software wise? like clockgen, how do i make it work with my mobo? bcoz the PLL setup not appearing

 

[numbskull77]

ohh i think i somehow figure out abt the clockgen as my mobo does not support clockgen, anyway manage to push to 2.6ghz at DEFAULT vcore(275x9.5) HT x3 but once after push to 280 x9.5 it start to fail to boot into windows...

 

[1Tanker]

ohh i think i somehow figure out abt the clockgen as my mobo does not support clockgen, anyway manage to push to 2.6ghz at DEFAULT vcore(275x9.5) HT x3 but once after push to 280 x9.5 it start to fail to boot into windows...

So, what was HT multi at before? Did that help?

 

[numbskull77]

i all the way using HT x3 now i clock mu cpu at 276 running at DDR2 533 default vcore but after change to 277, the bios showing me Warning!!! switching to safe-mode. Please re-setting the cpu frequency. Need advise to push further... PLZ!!!

 

[1Tanker]

i all the way using HT x3 now i clock mu cpu at 276 running at DDR2 533 default vcore but after change to 277, the bios showing me Warning!!! switching to safe-mode. Please re-setting the cpu frequency. Need advise to push further... PLZ!!!

Okay, i was wrong....with that divider, it is quite likely that it is your RAM. You're running DDR2-667@~750MHz and 4-4-4-12(suprised you got that high). Is there a lower-speed mem. divider that you can use? If not, then loosening the timings to 5-5-5-15 might get you a few more MHz out of it. GL

 

[numbskull77]

lower mem. divider? hmm i not sure whether the mem. divider you r toking abt is "Memory clock value or Limit" currently i am using ddr 533 so u r asking me to lower to ddr 400?

 

[1Tanker]

lower mem. divider? hmm i not sure whether the mem. divider you r toking abt is "Memory clock value or Limit" currently i am using ddr 533 so u r asking me to lower to ddr 400?

Yeah....you have 4 options:

1.Drop to the 400MHz strap...which will hurt performance(tighten timings as much as you can to offset the low speed).

2.Get new RAM....DDR2-800...not cheap.

3.Up the vDIMM(DDR Voltage in your BIOS)...and soldier on.

4.Loosen the timings more, and hope to get a few more MHz out of your current RAM.

GL

 

[numbskull77]

wow i follow your instruction and it doesn't work with 277 but 295!!! dunoe why. maybe some expert can kindly explain... anyway i oso added some voltage to cpu for stability(nv manage to boot into windows before adding). will push further to 3.0 ghz after getting a new cooler for my toy. thanks anyway

 

[numbskull77]

running smoothly until when i try to open cs:source.. it get itself auto restart... wat can it be? enuff voltage to cpu? or ddr? and wat is NB voltage? need advise

 

[Athalus_nubie]

Hey mate, now youve got your RAM under control, the two things left are your chipset and your CPU.
Try upping the voltage to your chipset 0.1 volts at a time, see if this helps with stability issues. I have never used this mobo, if its a cheapy you may have hit the limit that the chipset can handle 295 isnt bad mind you. you may have more success if you bring the bus speed down and the multiplier back up. to get my opteron OCed to the level it is at, im pouring 1.48V into it, so you can always up the juice to the CPU in an attempt to get a higher OC !!make sure you have a good heatsink and that you monitor the temperatures if you add lots more volts!!

Also let us know what temps your getting on your CPU your stability issues could be a result of your CPU getting to hot. speedfan isa good free program for monitoring temps.

 

[Athalus_nubie]

Also i just looked around, and 3Ghz is about the top OC from these CPUs, but every CPU is different so you may just have a "bad" chip.

 

[numbskull77]

manage to get it run successfully after push the volt by 1 step, but when trying to run stress test from otheos still will get error from both small and large fft cpu and ram test? wat else do i need to get it stable? add more volt to cpu and ram? wats chipset voltage? do u mean by NB voltage? and there is another option i saw in this bios below "K8 <-> NB HT Speed" is "KB <-> NB HT width". may i noe wat is this k8 <-> NB HT width? i noe that K8 <-> NB HT Speed is the HT multiplyer but wat is NB HT Width? need advise on it.

 

[numbskull77]

bumps.....

 

[Athalus_nubie]

the sad thing is i wrote a huge reply last night, but due to my internet being godawfully crap last night i couldnt post it! now i have lost it and must write it all over again!! GAH!!

Anyways.
First of all TEMPS!! get speedfan, let us know what your CPU and mobo temps are at. One of the reasons that your OC is unstable could well be that the temperature on your CPU/chipset(northbridge) are too high, so let us know whats happening there.
Next up if your temps are ok, which means ~30-35 idle tops on your CPU then we can try and do one of three things
1)increase voltage to your CPU mine is running at 1.48V but im running aftermarket cooling, so id recomend that you monitor your CPU temps each time you bump up voltage. id recomend ~1.4 as the max voltage to use.

2)increase voltage to your chipset, 0.1v at a time, see if this helps your stability issues. once again use speedfan to monitor your chipset temps!! dont let them get much over 55-65 degrees.

3)At 295 your talkign about a realitivly good OC on a presumably cheap motherboard, so it may be that youve reached the limit of what your mobo can handle. one way around this is to bring the CPU multiplier back up to 10, and reduce the bus speed down. Also it might pay to do some googleing and see what other people using your board have managed to get theirs up too.

Also remeber that not all 3600s get to 3Ghz, you may have simply reached the limits on what your CPU can handle ;p

 

[numbskull77]

i dunnoe which 1 is the chipset temp, and do u mean by NB voltage is chipset voltage?

 

[numbskull77]

bumps......