overclock attempt number 2

[zan76]

atempting to overclock again on this new board and cpu i have had it week and left to try this to let evevrthing settle in this time becase if you know what happened that last the board and cpu died before they were a week old .

so the only thing i have changed this time is the multiplier changed it to x40

did not change the volts it .still on offset mode and givin me 1.32 volts on ideal in cpuz i have prime 95 on small ffts running volts have drooped to 1.256 volts there a wee bit jumpy

1.248. 1.256 to 1.264

any advice would be good have not touched the llc or phase stuff because i dont have a clue with that. changed it last time and we know what happend there.

 

[S1EJ0]

I tend not to use the offset and just set it what is required with LLC enabled.

What kind of OC you looking to achieve? You haven't even said what chip you have!

But a 2500k will be around 4.2GHz @ around 1.3V?

 

[zan76]

I tend not to use the offset and just set it what is required with LLC enabled.

What kind of OC you looking to achieve? You haven't even said what chip you have!

But a 2500k will be around 4.2GHz @ around 1.3V?

sorry i have i5 2500k it says in my sig i had my last i5 2500k at 4.5 but i died last week with the board not sure why i have a feeling it was to do with llc and phase stuff i changed .

 

[SieB]

Phase and LLC would not cause your board to break not unless you put stupid volts through it that are way past the safe zone as in 1.6v + and even then you would have to have had those volts running for quite some time before it actually did anything.

The reason I told you to use them is because I know for a fact that they improve stability, but then again what do I know I have only had a 2500k and been overclocking it since the day after they came out

Have a read of this

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[zan76]

i really like all your help sieb iam just really para about it all all my last clock did not go to well. i have put pic up off my bios as it is right now.

the most the volts went on last cpu and board were 1.35 volts

 

[zan76]

right i have clock of 4.2mhz stable

 

[zan76]

i have taken this from the link sieb gave me on overclocking , this go back to my other board cpu that died last week .

Load-Line Calibration - Enabled High or Auto**



**A note about Load Line Calibration - Since writing the original i7 guide, it has come to light that in some circumstances, the enabling of Load Line Calibration may lead to small voltage spikes, especially at higher Vcore, the other thing is that arguably, you may use slightly more overall power under load than with it disabled. Given that most of us will not be running at 100% load 100% of the time, and the fact that none of us have seen any damage from using this setting, and that it can be quite useful, I have decided to leave the setting as enabled. That said, if you prefer, you can disable it, but keep in mind that you will need to apply more Vcore than you previously did to get stable. Swings and roundabouts!

this may have been the reason why it died . i had mine set to high .

 

[SieB]

LLC being enabled would not cause your board to break I have had mine on ultra high. LLC prevents Vdroop it will raise the voltage slightly to prevent Vdroop and causing your PC to crash/blue screen. There is no way that LLC would cause enough voltage to fry a motherboard unless as I said before you set the Volts very high.

There are people on here that have overclocked there 2500k's to 5ghz on 1.5v + with LLC on various levels and their boards are fine, I have overclocked mine to 5ghz on 1.6v with LLC on high, so I very much doubt that having LLC set to high using 1.35v would cause any problems what so ever, in fact I have my LLC set to High using 1.35v and the highest mine spikes is 1.358v which is no where near enough to damage anything.

Motherboards can withstand very high voltages you are more likely to blow your CPU than you are your motherboard. Look at all the extreme overclockers and see how much volts are pushed through the CPUs, 1.7v+ and then see how many CPUs die because of it compared to motherboards. For example, Tom's 980X overclock on DICE.

You just must have had a bad motherboard.

 

[zan76]

i understand what your saying must have been a bad motherboard . i just would like to understand why it died but i suppose i will never know i am just one of those people that likes to try understand how things work and not just accept it works with out know how it does it ....

 

[zan76]

ok guys been about week been playin about a bit with my overclock i now have it 4.4mhz at 1.28 voltsran prime95 for about hour max temp were 52-57-57-55.......

 

[S_I_N]

very nice bro thats a very good oc and volts and temps are great looks like this time ya won the silicon lotto lol

 

[zan76]

yea so far not bad but but noticed that LLc was on ultra high late last night bios must auto put it to that mmmmm.

 

[zan76]

hour on occt linpack

 

[Scoob]

hour on occt linpack

Looks like a nice, stable overclock you have there.

Regarding your earlier failure, it could be down to motherboard. My prior motherboard was one of MSI's cheaper ones, the G45 to be exact. It's voltage control was TERRIBLE, really, really bad. For example, with pretty much everything on default I tried an OC which seemed to work fine however the board decided to put near 1.5v through the chip and I'd barely broken in to the 4.* ghz range! It had very limited options, generally on or off for most things, so I could not have any degree of fine control.

Since switching to my ASUS P8Z68-V Pro everything is great. I'm currently at 4.6ghz on a 2500k, with default vCore in the BIOS (1.24v from memory) with an offset of 0.050v applied. I recently jumped from 4.5 to 4.6 so I think there's some room to pull that offset back a bit. Note I'm running LLC of Very High, so, one step above the default setting of High. I usually see a vCore of about 1.37 or so when stressing the cores with temps in the low-60's, IBT shows a little more than that but then it's the daddy of stress tests in my view!

Cheers,

Scoob.

 

[JesseLactin]

Interesting suggestion, you old CPU may have died due to it not being seated properly. That happened to an overclocker on the NCIX forums (his CPU and motherboard died, and I think he was running it at 4.5GHz)

 

[Scoob]

Interesting suggestion, you old CPU may have died due to it not being seated properly. That happened to an overclocker on the NCIX forums (his CPU and motherboard died, and I think he was running it at 4.5GHz)

Yeah, there are soo many things it could be to be fair. It may have simply been down to a duff part. It's a pain but sometimes new stuff goes pop, at least the OP has a nice system with a decent overclock now. Plus a dose of caution likely does us all good.

I don't actually heed that suggestion of caution myself however, my first SB overclock attempt on the new board had me setting it straight to 4.5ghz lol.

Scoob.

 

[zan76]

well iam happy man now . onto my next build .......

 

[Scoob]

well iam happy man now . onto my next build .......

Heh, enjoy this one for a while first mate!

Scoob.

 

[zan76]

dont worry i will.. i like to keep busy.........

 

[V1Viper]

Yeah well done.