4.5ghz i7 920 DO 24/7...????? help.....!!!!

[Farmerbrown]

well as you can see from the title of the thread i would like to achive a 4.5gzh clock for 24/7 use....i have just got myself some good ram....Corsair Dominator GT 1866mzh....:D....nice ram.....so i think i will be able to overclock my cpu to 4.5ghz easy now.....the only thing is i need some help....with the voltage settings and timing of the ram.....was thinking 1.4 v core and timing of 8-9-8-24 T1....would you say this would be ok to achive a 4.5ghz clock....FSB set at 225x20 so this would give me 4.5ghz......i have tryed this but it dont boot....so i dont know what to do.....:shrug:....so please help me.....!!!! oh and :welcome:....lol

[zalbard]

Check the thread in my sig. :up:
And use 21 multi (turbo always on).

[Farmerbrown]

Check the thread in my sig. :up:
And use 21 multi (turbo always on).

thanks for the link but that dont help me...i need to know what setting to use in the bios....have a P6t Deluxe V2.....ash

[lucas-10]

Check this thread Asus P6T Deluxe Discussion Thread (http://www.xtremesystems.org/forums/showthread.php?t=210480) :up:

[Jamesrt2004]

1.7pll 1.4vtt 1.45 vcore =)

[NaeKuh]

watercooling will not get you 4.5ghz.

a bit of praying from the intel god, on a chip which can handle is better medicine then a 400 dollar h2o setup.

[nkresho]

^ Agreed on that. The chips tend to vary pretty far for overclocking ability. Some older batches have proven themselves for the speeds you're looking for. Most newer ones, not so much.

To the OP, good luck! It's a lot more complicated than just giving you some voltage values.

You have to do a good deal of it on your own before we can help. For instance, you say..."I am at 4400mhz and I can only run lin-x for 2 tests, then it fails by way of error... here are my voltges... what should I increase?" And we say... "add more vcore... add more vtt", etc etc.

Just out of curiousity, what is your batch #? And what bios are you on? You may need to crossflash to an older bios to run turbo over a certain voltage/load. It will start throttling on you.

And please post in only one place at a time... http://www.xtremesystems.org/forums/showpost.php?p=4153301&postcount=1595

[Farmerbrown]

Hi just thought i would bring the same thread alive....i can get the chip to 4.5 Ghz but cant get it stable....any help...thinking i would need to play around with the voltages somemore and also the ram timing...Vcore is at 1.35V...QPI 1.6V at 2000mhz might need to lower the timing or speed of ram....can anyone give me a hand....???

[Vinas]

4.5GHz is really hard for the majority of i7 860/920/930 chips... Just pointing that out. This is why there is a special club for those folks. I would read that thread (http://www.xtremesystems.org/forums/showthread.php?p=4115565) first if you are really serious about achieving 4.5GHz.

[Church]

Imho 4.5 might be more for 1.4+V Vcore area material.

[aerial]

Best way is to buy selected chip. You will pay more, but there won't be unpleasant surprise. For sure it is cheaper than water cooling. Usually selected processor + moderate Air Cooling > random chip + high end wc. In terms of o/c results.
Water Cooling is rather for fun, instead of actual performance. If you wanted ultimate performance there are much more powerful solutions. It makes more sense if you are using multiple high end gpus, or want silence (but that is another myth, using large multiple radiators will never beat silent AC setups, because of pump and many fans used).

[PiLsY]

More vcore less vtt for starters. Whats your vdimm at?

Need to know every voltage really - got a bios template you can post?

[ViViD]

With HT On Hard To Stable 4.5GHZ On H2O

920 is Hot Chick :D Sorry Hot Chip :D

[Church]

Depends from each piece of cpu. There are ones clocked upto 4.8 even on air, and ones that have problems clearing 4.2 on water. With properly done LC at least one can expect that cooling won't be limiting factor for overclocking and won't cause hearing loss :)

[Farmerbrown]

The chip i have i did 4.8ghz on today....no problems just cant get it stable...i am going to use the same chip in a new build so will try and hit a 4.5ghz 24/7 overclock....thanks for the help....when the new build is done i will post more details on the setting i am running....

[Vinas]

no problems just cant get it stable
That sounds like a problem :ROTF:

If you want the ultimate stability test, join WCG and see how long you can last at that speed. :D My cooling can only handle 4.0GHz for WCG (24/7 crunching).

[FedericoUY]

The chip i have i did 4.8ghz on today....no problems just cant get it stable...i am going to use the same chip in a new build so will try and hit a 4.5ghz 24/7 overclock....thanks for the help....when the new build is done i will post more details on the setting i am running....

You should try a lower speed stable, and then gradually increase until you reach your desired 4.5Ghz. Go for 4.2, 4.4, and then after you reach those speeds stable, go for 4.5. You should be stable (4.5) with around 1.4 - 1.46 of vcore (less if you have a really good batch), 1.35 - 1.45 VTT (ram not over 1800mhz) and maybe 1.2 on ICH. Hope it helps. Regards.

[QuantumPion]

I must have a bad i7 920 because the highest clock I can seem to get on mine is 3.8 Ghz at 1.28 V. Even though the CPU is still plenty cool it just won't be stable at higher clock/voltage. Maybe it's because I have one of the very first chips from January 2009?

[Church]

Plenty of people have already told to rise voltage.

Oh. Hmm. Early chips? What stepping?

[Movieman]

The chip i have i did 4.8ghz on today....no problems just cant get it stable...i am going to use the same chip in a new build so will try and hit a 4.5ghz 24/7 overclock....thanks for the help....when the new build is done i will post more details on the setting i am running....
That's the chip speaking to you. chipspeak.
I'll translate it for you..
What it's saying is "Back the hell off or I will leave you!"

[penguins]

i got my car up to 200 mph today but then the tires disintegrated and i crashed into a wall...
i mean! work on what you can get stable first, booting @ 4.8 doesn't mean anything if notepad makes it crash : ).
try getting fully stable @ 4.2 or 4.3 24 hours you'de be surprised how many stability tests crap out on the 23rd hour...well at least for me and my unxtreme system :).

get as far as you can stable then post up your voltages etc what everyone sayin.

[Grinchy]

from what you wrote it seems that you are trying to work woth 2:10 ram multiplier (you told that your ram is at 2ghz). try lowering ram multiplier at 1600mhz,you will need way less vtt...
And there is one to rule them all when talking about stability : IBT with maxed out settings( xtreme stress mode - max memory and a number of threads always higher than the logical cores amount). Work it a few hours and if you pass it it means that you are STABLE !

[antiacid]

watercooling will not get you 4.5ghz.

a bit of praying from the intel god, on a chip which can handle is better medicine then a 400 dollar h2o setup.

my i7 920 does 4.5 @ 1.36v, 4.6 @ 1.42 and 4.75 @ 1.5ish (and g.skill ram at 1720mhz)... All under water. It's not about the watercooling, it's about the chip.

[millertime359]

my i7 920 does 4.5 @ 1.36v, 4.6 @ 1.42 and 4.75 @ 1.5ish (and g.skill ram at 1720mhz)... All under water. It's not about the watercooling, it's about the chip.

I think that was what he was getting at. ;)

[Kurz]

(but that is another myth, using large multiple radiators will never beat silent AC setups, because of pump and many fans used).

What myth? Pump is mostly vibration and if you have the right set up you wont hear it only feel it.

I had some fans where the oil dryed out so I just left the radiator running passively. Temps went up about 10C (While gaming) though it was silent.

[lowfat]

my i7 920 does 4.5 @ 1.36v, 4.6 @ 1.42 and 4.75 @ 1.5ish (and g.skill ram at 1720mhz)... All under water. It's not about the watercooling, it's about the chip.

What kind of temps do you get w/ 4.6GHz+?!?!

My 920 will do 4.5GHz, 1.3375V under water and 4.8GHz, 1.3375V under phase. There is no way I could take it higher than 4.5GHz under water though. It throws out so much effing heat I have a problem keeping it under 95C while folding@home.