• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

***The Official Core i5 Overclocking Thread***

VVT i would try at 1.3-1.4 @4ghz will not need higher
myn @4gh
cpu volts 1.318
cpu vtt 1.303
pch1.8 /1.810
pch 1.05v same as stock
 
Last edited:
Stepping =L924B290T
Same as just about every one on here :)
temps are 55/58c full load under water
Look about 7 post back left screen shots :)
Can not decide if i should push any more happy at 4ghz
 
Whenever corsair pull their fingers out, had a H50 sat here for almost a week now. Apparantly it's going to be "ASAP"
 
L0stpr0phet said:
Sorry made a mistake posting lol, It is running at 4Ghz (20x200)
the CPU Voltage was wat i meant and is at 1.362

If i went to set the VVT to around 1.8 as you suggest this is flagged up as red text is that right?, auto is shown as 1.26V in the right hand column.
Click to expand...

Oh blimey, I said VTT there didn't I, I meant just PLL at 1.8v, sorry about that.

PLL should be manually set to 1.8v, raise it a couple of notches if you need to, but no more than 1.9v.

QPI/VTT should be at 1.1v stock, you may find you need to take that upto around 1.210v, not much more than that should be necessary at 4GHz really. You're ok to play around a bit more here though, it's the PLL voltage you habe to be very careful with.

I am very sorry for the confusion, I got the acronyms confused, I'm new a overclocking Nehalem based cpu's myself ..well as of launch week anyway. I am used to S775 and AMD's. I'm glad you took note of the red flagging :)
 
Last edited:
Moeks said:
Oh blimey, I said VTT there didn't I, I meant just PLL at 1.8v, sorry about that.

PLL should be manually set to 1.8v, raise it a couple of notches if you need to, but no more than 1.9v.

QPI/VTT should be at 1.1v stock, you may find you need to take that upto around 1.210v, not much more than that should be necessary at 4GHz really. You're ok to play around a bit more here though, it's the PLL voltage you habe to be very careful with.

I am very sorry for the confusion, I got the acronyms confused, I'm new a overclocking Nehalem based cpu's myself ..well as of launch week anyway. I am used to S775 and AMD's. I'm glad you took note of the red flagging :)
Click to expand...

That was my nervous beginners overclock brain kicking in, red flag means danger! lol

I'll try and tweak the things you've mensioned and see how i get on, another couple of questions for anyone, Ive currently set Load Line Calibration to disabled am i correct in doing this? or should i enable it to deal with "vdroop" etc?

Also is there any benefits from changing the PCI-Express settings from the standard 100 to anything higher?

& final question for the moment :p can anyone point me to a guide/tutorial about RAM timings and the benefits of manually adjusting them?

Thanks for all your help so far :)
 
Just want to say cheers to everyone who has posted their OC's and help in this thread. My 750 arrived today and i already have the GD65 so i just need RAM and im good to go.

These posts are very helpful :)

FPO = L930B475
 
Last edited:
L0stpr0phet said:
Ive currently set Load Line Calibration to disabled am i correct in doing this? or should i enable it to deal with "vdroop" etc?

Also is there any benefits from changing the PCI-Express settings from the standard 100 to anything higher?
Click to expand...

Yep, generally leave LLC disabled, that's what Intel suggests, seems to be the way most people are going anyway.

Err well I usually set my PCI-E frequency to 101, few years back a number of motherboards would actually fail to lock the PCI-E frequency if you left it at 100, 101 used to force it to lock though, it was a bug though, not intended, but ever since then I always set it to 101, just incase.
 
Anyone know why CPU-Z is showing my i5 at 1.5GHz? :confused:

1z21v1g.png
 
Strange lol maybe if speedstep is enabled it has knocked the multiplier right down to 9x for some reason?
Hopefully someone else can answer you with more than a guess as im new to all this lol :)
 
You must log in or register to reply here.
Back
Top Bottom