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post #401 of 560
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Quote:
Originally Posted by lebcoussa View Post
First of all hi OCN guys !

i've been reading so much on your forums for couple of years, and now i need some advice for a new setup rig i'm gonna buy real soon.

875k looks nice, but it seems it needs real cooling device, and a capable mobo / ram to outburn it full capacities, this is what i was thinking to buy, for a rig that i'll keep for 5 years minimum, i need your advices and PRO / CONS , if its a good deal or not;

CM HAF X
CM 1000w gold
Asus maximus III extreme (sata 6G + usb 3)
i7 875k
evga EE gtx 470 sli
crucial ssd c300 64gb
wd caviar black 1To x2
gskill extreme3 pi 2x2Go @ 2200mhz x2
H70 corsair watercooling

i'm gonna use this for mainly gaming and some video editing, and been waiting for 5 years to buy such a config, and wont touch a thing in it , till next 5 years
(i'm actually running a64 3500+ , asus a8n-e, 6600gt, 4gb ram :/ )


My main question is :

doest this setup unleash the fullhorse power of this 875k with a good OC ? for gaming purposes, could i possibly get at least 4.4ghz with 4cores and HT on ?

thanks for your opinions, and a big hi from france , sorry for bad spelling
It is highly unlikely you will be able to reach 4.4ghz on the H70 for 24/7 use. For that you would need a nice water cooling setup, and then your chip would also have to be a good batch.

Since your budget seems mid-high end I would recommend going with an i7 920/930. You will have triple channel ram for video editing, and they overclock better on lower volts. 4.4ghz is possible on some 920s/930s.
Edited by cory1234 - 10/9/10 at 7:25am
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post #402 of 560
@ehume

It was the "unlocked" feature that woke my curiosity and I had to feed that curiosity , I got lucky, mine do 4,2GHz with ~1,35, pretty good, better then what my i7 870 did.

It sure had been nice to have some additional ram multi´s




@skfurr

According to Anandtech then only read the VCC and VTT, not the with VRM, I quess that´s why it´s different to your reading.



@lebcoussa

Hi and welcome to OCN, lebcoussa


The hardware you have chosen should be good enough to push the cpu, ram and vga to the limit and would also last a while

You will push that IMC a bit more then what´s comfortable for a 24/7 setup if you intend to run your ram at 2200, down clock them and with tighter timing you will be better off, in my opinion.

Don´t have to high hopes on getting it to 4,4GHz, even though H70 is a very good cooling solution, I think you have to go for a full blown water cooling if you´re going to succeed in a stable 4,4GHz, 4,2 shouldn´t be a problem though, it depends on how good chip you´re going to get.


Bad spelling , no not for my, it´s just fine, crystal clear
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post #403 of 560
See the attached image for my bios ram setting. This seems like an adjustible multi on the ram to me. 2400MHz is higher than you should need, but it's available! This is running 200blck (as you can also see in the image).

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post #404 of 560
@Ransom

Sure is but it´s the same as every other Lynnfield, x6, x8, x10 and x12, nothing special.

2400 is enough for most people but some want to run Bclk of 133 and then the ram max out at 1600 and for some this´s to low, so it should be nice with ram multi´s higher then x12 for those who what to run Bclk of 133 and want higher ram frequency then 1600.
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post #405 of 560
Quote:
Originally Posted by cory1234 View Post
It is highly unlikely you will be able to reach 4.4ghz on the H70 for 24/7 use. For that you would need a nice water cooling setup, and then your chip would also have to be a good batch.

Since your budget seems mid-high end I would recommend going with an i7 920/930. You will have triple channel ram for video editing, and they overclock better on lower volts. 4.4ghz is possible on some 920s/930s.
I concur. As someone who has both an i7 860 and an i7 875k I must say they are fine toys, but for serious 24/7 OC you need an i7 9xx. The advantage of the 9xx's is that there is less on die, particularly the video controllers. You can get much better throughput to and from your vidcards with your 9xx's than the 8xx's. And with hottest parts of the chipsets off die, the cpu runs cooler with the volts it uses and uses less voltage to begin with.

The only advantage of the 875k is that it scales up and down better, since the multipliers are unlocked. But I believe you can get the same unlocking in some of the 9xx cpu's.

Another thing: you have waited five years. Perhaps you might wish to wait until after the first of the year, when Sandy Bridge comes out. The SB is on a 32nm process, which is inherently cooler. And people have already overclocked samples to over 5GHz on water, and nearly 5GHz on air - and my info may be out of date; for all I know they may have gone past 5GHz on air.

All in all, I'd say do some more homework. This forum and this thread and this thread are good places to start.
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post #406 of 560
Quote:
Originally Posted by Ghostleader View Post
@ehume

It was the "unlocked" feature that woke my curiosity and I had to feed that curiosity , I got lucky, mine do 4,2GHz with ~1,35, pretty good, better then what my i7 870 did.

It sure had been nice to have some additional ram multi´s
Are you saying it sure would have been nice to have some additional RAM multipliers? Or it has been nice to have some additional ram multi´s?
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post #407 of 560
Quote:
Originally Posted by ehume View Post
Are you saying it sure would have been nice to have some additional RAM multipliers? Or it has been nice to have some additional ram multi´s?
Now you´re a bit , what do you think.
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post #408 of 560
Quote:
Originally Posted by Ghostleader View Post
Now you´re a bit , what do you think.
Hope springs eternal. I can be quite dense, when I'm hoping that your Asus board can go up to 14x on RAM.
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post #409 of 560
brought this a few days ago:

OCZ Platinum 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 2000
EVGA P55 LE 123-LF-E653-KR LGA1156 Intel P55 ATX Motherboard
Intel Core i7-875K

got all 3 for about £300 with shipping

Had to update the bios on the motherboard to get it to support this cpu properly.

gona go in my desktop pc to replace the e8400 and p45 board i have.

so far i have got it to 190bclk with 1.150 vtt (cpu multi on lowest possible *9 ) , able to pass 1hour occt , I have only been working on the bclk so far, now i have to work on getting the memory and running at decent speeds.

cooling: dtek fusion V2 i had to use a new bolt through kit, because the back of this socket wouldnt let me use the socket 775 bolt through hit.

got a 480 radiator cooling this and to 8800gt gpus. so im hoping that i will be able to get a decent oc out of this .
Edited by markp1989 - 10/9/10 at 11:17am
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post #410 of 560
Quote:
Originally Posted by ehume View Post
Hope springs eternal. I can be quite dense, when I'm hoping that your Asus board can go up to 14x on RAM.
No hard feelings, we are good

Lol, good news, I thought that Lynnfield only supported up to x12 but I quess I was wrong because my Evga P55 FTW do support x14, checkout the picture below.


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