just want to show off.

wanna ask smething how to raise the NB volt???

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Added on November 4, 2009, 10:30 pmnope

This post has been edited by BuckRoger: Nov 4 2009, 10:30 PM

btw, my HDD fail on long DST not sure whether if it affected prime95, (lazy to send for RMA, this is second time fail. seagate... seagate haihhhhh...)

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Added on November 4, 2009, 11:20 pmNorthbridge

Whenever one is talking about the North Bridge (NB) of a Phenom II, it is safe to assume that they are talking about the CPU-NB. The CPU-NB is a section of the CPU that controls the L3, Memory Controller and the Hyper-Transport (HTT). As mentioned before the CPU-NB and the HTT have different multipliers, please remember this.

When you overclock your CPU, the higher you go the more likely you will need to stabilize the CPU-NB. What do I mean by this? As the CPU increases its speed to calculate data, so must the speed of which the CPU communicates with other components on the Motherboard: chipset, memory, etc. Let me take the classic example of a 4.0 GHz 940BE and its CPU-NB. If you were to leave the CPU-NB at 1.8 GHz stock then the data calculated by the CPU would create a bottleneck and thus resulting in errata errors or CPU errors. So in order to balance these speeds a CPU-NB clock of 3.0 GHz would be needed. In most cases of high OC’s that result in crashes; the CPU-NB is usually the culprit.

I have constructed a table at which your CPU-NB should be at with ‘Y’ CPU Speed. Please note that there is a +/- 200 MHz difference for each step. In order to find your speed without my table, you can use my formula: CPU-NB Frequency (+/-200) = (CPU-Frequency * 2 ) / 3.15.


Highlighted areas are the recommended speeds of which to run the CPU-NB

As you can see with Table 3, these are the support frequencies of your CPU-NB at X CPU frequency. Of course, as you increase the CPU-NB frequency, you have to increase the CPU-NB voltage.

Let me put this in practice, before you start to debate my theorem.



Highlighted areas are the recommended speeds of which to run the CPU-NB

Now that you have seen actual data charts you can criticize my theorem, do not worry I already do it myself. In practice it does not work 100%. Actually I have Super Pi 1M, 3D Mark 06, PC Mark 05 and Geekbench charts as well showing that the 2800 MHz NB usually is top of the charts rather than the recommended speeds by my calculations. Which to me, is fine. The idea behind the formula is a rough estimate of what you should be at with ‘Y’ CPU Frequency.

What you should get from this section is an understanding of the importance of the CPU-NB and how it effects your overclocking process. By all means you should think about looking at the CPU-NB each and every time when try to push for a different CPU Frequency.



Can anyone elaborate more abt this?? dont quite understand

This post has been edited by BuckRoger: Nov 5 2009, 01:27 AM

how to increase CPU-NB (its not the HT speed right?) ? & What is stock CPU NB vcore?? (mine show NB vid is at 1.15 in aod)

ok, now my NB multi (10.00 x) x HTT ref. clock (243.01) = NB Speed (2430.0 +-)

Vimc (what is this ) = CPU NB vid

This post has been edited by BuckRoger: Nov 5 2009, 09:29 AM

is it Vimc is the Memory vid?? like im using 1066mhz @ 2.2v?? red reflect Vimc?? no...??

if my NB Speed = 2430.0 run on vNB = 1.15v, is it normal??
or can anyone advise me what is the suitable vNB ?? & what is the safe range of vNB?


Thanks,

This post has been edited by BuckRoger: Nov 5 2009, 10:46 AM

questions :

why does my vcore on am3 keep on going up & down??

Thanks,

thanks for the answer, what if the flunctuation is big?? what caused this?? err.. PSU?

reporting!!! x4 - 3.8ghz prime95 stable!!!




Attached thumbnail(s)

59'C i guess ... how to check the temp?? once turn to x4 the core temp show 0'C (need advice for this, anyone can lead me how to check core temp on the unlock chip , thanks)

btw, this is my x2 @ 4.0ghz

what is EC Firmware??
btw theres one option in bios called "hware monitior" it can be set to shut the pc off when cpu temp goes up to certain temp, mayb u can chek this out (my advise is get a better cooler )

1.424 V is the correct one . im sure the AOD cant read ur mobo spec

errr,, doesnt ur nbvid is quite high?? 1.3v

This post has been edited by BuckRoger: Nov 16 2009, 11:15 PM

What is DMM?? lol..

damn!! i got one of those too.. last time i play around with my CCFL inverter, with that thingy & next thing i know.....kabushhhhhhh.. something blow, white & black smoke, with that burn smell.. lucky im still alive

Questions :

2GB vs. 4GB vs. 8GB - Does it make a difference?

on a machine that only do Gamming once in a while, no video editting, etc..

hmmmm. im kinda missed my 550 be

guess its my luck . bought 550be yesterday & here is the result :

here it is :

i guess so, bought it on 7 December frm all it ..

so!!.... ladies & gentleman..... hurry while stock last ,,,

This post has been edited by BuckRoger: Dec 13 2009, 03:31 PM