It's either cooler or he badly need a better PSU liao, Enlight 400W is ok for me for light~medium load coz i used Enlight 425W b4 but that was during X2 3600+ yoo.. how many years was that..
With u oc'ing ur 955W which is a 125W TDP cpu + quite power hogging HD4870 i think its a bit too much to ask of that PSU liao..

didnt notice that...could be this also..

try borrowing a better and higher wattage psu and try

Shouldn't be the PSU. My father handpick this PSU himself. Back then I was under budget and my only option was wither Enlight 400w or Cooler Master Extreme 460w. We look at both and my father insist that I took the Enlight even though Cooler Master has more wattage. Reason is, Enlight is a lot heavier

If you wondering why I listen to my father, its because he's an electrician / electronic engineer. Has been dealing with these electronic stuff for more than 20 years. Dealt with more PSU than you or I have ever touch in our lifetime

Either way, I believe the issue is not with the PSU. I don't have any other PSU to try anyway.

cap ayam psus are known to be able to deliver only half their rated wattage..and inefficient anyway...

get at least an 80+ rated psu or better 80+ gold

if you want to isolate the problem, try running barebones

---

Added on April 4, 2011, 10:37 pmyour psu is underpowered...

if you dont believe you can input your components here

with your components, i get recommended psu wattage 376W

means you need at least a 500W psu, or a 450W@80+gold

This post has been edited by dafreak: Apr 4 2011, 10:37 PM

Can't really call Enlight cap ayam. Have dissected the PSU before and it was surprisingly good. Large transformer, surprisingly quality large capacitors and some very good transistors too.

Oh, did I mention it was as heavy as some of the 550w PSU's

heavier than a 550W psu doesnt mean it can deliver as much as a 550W, larger stuff doesnt mean more efficient/better

btw, read 2nd post

Nah..those PSU calculator are not very accurate. Just another tool to make money.

You see. There is a strong correlation between weight and a quality of PSU. Normally, a more powerful PSU requires a larger transformer, which in turns translated to heavier PSU.

And there is no way these tiny copper wire you found in those high end PSU can carry 60amps in them. Unless they're made out of pure gold or the found a way to turn it super conductor at high temperature

You don't really need that much power in a small CPU you see. Its only 1.4v for God sake

And if my PSU is really under power, it would have shut down a long long time ago

This post has been edited by cllee86: Apr 4 2011, 10:53 PM

I'm not saying that the Enlight 400W is a chap ayam psu yoo, i know they were manufactured by Delta Electronics and they produce mighty fine psu's..
But u gotta look at the bigger picture, like how many watts & amps are stated on the 12v rails, how much is it capable to supply the kind of juice that ur pc need..
This is a basic watt usage on ur psu whenever ur running ur gpu:


This is a basic watt usage on psu for ur cpu on stock:


During stressing ur cpu or ur gpu it will suck down that much of wattage from ur psu, if ur psu is only rated 350W max at the 12v just think about how much stress its putting on ur psu..
Plus u need to factor the capacitor aging somemore if ur psu already been with u for quite sometime..
I'm not belittling ur dad and all but judging from the weight is one thing, u need to know also how much ur system is using, if not there wouldn't be a need for 450W, 550w,600w etc psu liao


I agree with dafreak, if u wanna know if the psu isn't holding u down try running barebone, use a different gpu during ur oc, maybe a lightweight/entry gpu or something

This post has been edited by cloudwan: Apr 4 2011, 11:02 PM

psu delivers power to the whole system, not just the cpu

1.4v may seem small but the amount of power the cpu needs is quite large especially when you are testing for stability (e.g. prime95)

better isolate by running barebones

Well. I appreciate your kind intentions but if you did as much research as I did into PSU then you'll know that the ampere rating on those 12v rails could be best describe as the work of fiction.

There is 1 time I was obsessed by PSU and all these 12v rail rating. I'm gonna take my time to explain why 60amp on those PSU 12v rails are crazy.

Our PC runs on Direct Current. Which means that the positive and negative charge must go together in the same copper wire. This creates a more stable flow of electricity but generates a lot of resistant. Which means, in order to carry more current (known as ampere) it must have thicker copper wire.

Now if you need a copper wire to carry 60amps of 12v DC, you'll need at least 1" thick copper wire

Have you ever see a 1 inch thick cable in any PC PSU? Neither did I. But I have seen a 12v DC 40amp PSU, but not for PC. Its for Car starter and you'll need a trolley just to move it

Now, about wattage calculation. Watt is a very general term. It can be used to represent any form of power. Even the power required for a person to climb stairs can be measured in watt. Now for electricity, watt is easier to calculate. To get the wattage, you just multiply the volt and the ampere.

V * Amp = Watt, for example.

10v * 10amp = 100watt. Easy. But if you take the formula to calculate CPU then it all doesn't make sense. CPU is only 1.4v, so in order for it to consume 125watt it must take at least 89amps

So for a tiny CPU to consume that much power is

I still need some time to find the root cause for my OC setup. But I'm confident that the PSU is not the culprit.

Btw, I'm more interested in the settings. Like how will the NB frequency affect OC and other stuff like that..

bro, that's just the cpu core only there are other parts on the cpu also lar (e.g, IMC, NB, others that we cant change volts on)

why would psu makers put a 'fictitious' rating on their psu anyway??? rofl

Well if u think that way, i cannot say anything liao, its up to u..
But just keep in mind i used a enlight b4, at that time i was bz trying to oc my x2 5000+ BE & HD3850 from 2.6ghz to 3ghz speed & i got a lot of crashes & bsod..
Under advice of a friend of mine i upgraded my psu to a SS ST56F and it solved my oc prob, the reason was simple, my enlight psu have been with me for almost 4 years and aging took place..

BTW mind posting here list of the settings u use to oc to 3.6ghz? All of it like cpu multi, fsb@htspeed, nbmulti, ram divider, ram timings etc..

ok... i dont care about psu stuff since this is oc thread..plus i donno about psu also..

but, 1.3vcore and 1.4v core will take quite amount of watt..
why dont u try to change ur psu 1st? we here donno the exact culprit u ur problem..why? cuz there are way to many factors.. and we trying to solve u out..

and i wont go high vcore on that mobo.

To answer your first query. All those other components you were mentioning. They all use less than 3 volts. That I can guarantee. There is no small Integrated Circuits in the world (the ones they put in PCB) that uses more than 3 volts.

And why PSU Manufacturer would put fictitious rating on their PSU. That's even simpler, so that you would keep buying them

I kinda agree with you on your first statement. That's why we dissect my PSU early this year to check for any fault. As I mentioned before, my father is an expert on PSU and he has handled more PSU we have ever touch in our life combined. In order to see whether aging has took place or the PSU has been stressed more than its capacity, we have to physically take a look at the components. I'll teach you how.

First of all, take a look at the capacitors. The moment you remove the cover to your PSU you'll notice 2 things, a very large capacitor and transformer. If the capacitor becomes "pregnant", or grows a bulge on top of it. Its a sign of capacitor overload. The capacitor will only become like that if its faulty or overload. If the capacitor doesn't look pregnant, it means that its still fine.

When we took out my PSU last time, my father was surprise at the capacity of the Enlight capacitor. He say it is very hard to find a capacitor with that high capacity.

Secondly, take a look at the bottom of the PCB, especially on the solder. If your solder appears blacken then it means the PSU has been overload. If tis clean and the solder haven't melted, then its all OK

My PSU was in perfect condition when we take it out last time, even then I have been using it for more than a year. If my PSU is underpower then all the symptoms I mentioned about damaged PSU would have appear then

Yea..this is what I'm taking about. Alright, its a bit long, here goes;

FSB 200Mhz @ 18 Multiplier which gives 3600Mhz
HT is set at default at 2000Mhz
I haven't check the NB Multi, donno how, will see how..
Ram 1600Mhz @ 10-10-10-25, I think this not the most ideal timing
RAM divider at 1:4 I think

I wanna go explore these kind of setting but not sure how, Its the RAM timing that makes me go nuts
Maybe I'll go revisit Phenom 2 overclocking thread.

Yea. Kinda agree with you. Btw, I know a lot, I mean a lot about PSU so you don't have to worry about my PSU consumption. I know what I'm doing
Btw, what do you mean when you say you won't go high vcore on that mobo? U mean my 770T mobo? Is it no good, I bought it 2nd hand from another forumer...

Just giving some idea...
You just migrated to DDR3 platfrom rite?
Did u memtest your rams before beginning any OC? at stock?

Cz last month i got my new rams but apparently they are faulty right out of the box...
I didn't memtest it and used it, thus many crashed n BSOD...

credit to ah_khoo, cz he mentioned that he always memtest before entering OS...

great u know alot about PSU

and i think i know alot in oc..

and priming on stock vcore/stock speed is unacceptable..
is either setting, hardware or user is the problem..

man, i can make it <1.25v with stock clock..


and 3.6ghz on stock vcore


here.. my older deneb..and this batch perform almost the same with 955 that time..


cant guide u much with little detail

Hey. I have never thought of that. How do you do memtest. At the start of Bios? Or using software?


Awesome man That's what I'm talking about. How did you do that? And with 1.344v sumore

You have my out most respect

Btw, I stopped playing with Multiplier and tweak the FSB.

I'm now running 212FSB with Multiplier at 17 which gives about 3604Mhz.

I clocked my VCore to 1.425 to give it more stability, maybe lower it when if it works.

My HT link now is at 2120Mhz and my ram clock change to 706Mhz.

Will Prime it and see whether it will survive 5 mins

Wow.God Damn it. It works

Changing the FSB to 212 at 17 Multiplier works. I managed to Prime my CPU for more than 10 mins and the temperature stays stable at 55~56c.

If I used FSB 200 at 18 Multiplier with 1.45v on my core it will shoot more than 65c after just 3 minutes.

And confirm I need to improve the airflow on my Cap Dolphin casing. I remove the side cover for the OC session just now and the temperature manage to stay stable at 55~56c.

Here's a screen shot of my setup just now. I think can still be improved. Gonna do it like Sifu kuntawakaw
I'll go gaming for a while and check out whether it'll BSOD on me or not this time.

I never said my old enlight psu was damage in any way, what i really mean is that after a few years of usage components will face wear & tear be it electronic goods, automotive component etc..
In my case there is no symptom bulging cap, or burn solder points or anything, nothing that u can see with our naked eyes, maybe its different on an electron microscope lah
Anyway, the psu just simply could not cope with my oc, use it on stock would be no problem but the moment u oc more than stock it went haywire, sudden shutdown, unable to boot etc..
BTW if ur surprised with the capacitors being used in an enlight/delta psu, then u surely will be more surprised with the kind of caps they used on other good psu's like corsair's, seasonic's etc..

whats ur ram volt, cpu-nb volt etc?
I think what kunta mean is that ur mobo IIANM uses 4+1 phase, at high volt u may stress the power circuitry a bit too much up untill u hear it scream..
Prolong use like that may cause it to go pop & burn

I memtest at the beginning of the bios...

eh ur settings is totally the same v mine... except my vcore needed is 1.4V
HT link i'm a multiplier lower n my cpu-nb frequency is @ around 2.5k...
ram divider same, while doing 7-10-8-24...

edit: haven't try to underclock vcore like kunta did... only 1 week on my deneb... hehe...

This post has been edited by byfc2010: Apr 5 2011, 02:40 AM