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Monst3r · 02-04-09

thanks for ur help bro much appreciated ay.. I read this on the link you posted.. Seems like i7's arent that difficult at all at they only have 1 option to overclock, By raising the BCLK Frequency.. Here..

Quote:

"So, Core i7 processors, except for the very expensive Core i7-965 Extreme Edition CPU, overclock in only one single way: by raising the base BCLK frequency. However, once you set it over the nominal 133MHz, the frequencies of all other system parts will automatically rise over their nominal value, namely the L3 cache, memory and QPI bus frequencies. Unfortunately, setting lower multipliers for secondary frequencies will help to compensate the proportional increase only for DDR3 SDRAM, because all processors except the top model already have the minimal multipliers set for Uncore and QPI. But the good news is that L3 cache and QPI bus have great potential at higher frequencies. Therefore, overclocking will be limited in most cases by the processor cores and not by their “support group”."

Also read this on voltages

Quote:

So, there are four major voltages to work with during Core i7 overclocking. They are:

* Processor core voltage of the actual CPU cores. The nominal setting for this parameter depends on the particular processor model, but it usually equals 1.2V. according to the specification, the maximum possible setting can be 1.55V, however, in this case you need nothing less than a water-cooling system involved.
* Uncore voltage of the QPI controller built into the CPU and the L3 cache. Their default voltages are set at 1.2V, however, the specification claims that they can be increased up to 1.35V without any harm done to the processor.
* Memory voltage. Although this voltage setting seems to have nothing to do with the CPU, it affects not only the overclocking potential of the DDR3 SDRAM in your system. The same voltage is used for the memory controller that moved to the CPU from the chipset. It sets certain limits to the maximum possible setting for this parameter. Intel strongly advises that it shouldn’t be raised past 1.65V. Ignoring this warning may cause the frequency potential of the damaged CPU to go down permanently.
* CPU PLL voltage (phase locked loop - a feedback control system that automatically adjusts the phase of a locally generated signal to match the phase of an input signal). This voltage used to be very important for successful overclocking of quad-core LGA775 processors, and is still important for overclocking Core i7. The nominal setting for this voltage is 1.8V, but Intel allows increasing it up to 1.88V without any risks for the processor.

As you know, increasing the voltage during overclocking makes the heat dissipation grow according to square-law. Therefore, when you overclock Core i7, as well as any other processors, it is important to monitor temperatures very carefully. Maximum allowed temperature for Core i7 is 100°C. If it heats up more, the CPU will enable thermal throttling, i.e. the Vcore and clock frequency multiplier will be forced down to 12x. This feature protects the processor die against dangerous overheating.

There are several different utilities out there that allow monitoring CPU temperatures, for example, CoreTemp or RealTemp. Using these utilities during stability tests of an overclocked processor will help find the optimal voltage setting for the overclocked CPU. They may also let you know if you need to improve your cooling.

However, it is important to keep in mind that Core i7 processors report only the temperatures of their computational cores, which allows to be more or less certain that these processor parts will not get overheated. At the same time, there is no way to control the temperature of the North Bridge built into the CPU. Besides, Core i7 has no integrated means of warning you about the overheating of the L3 cache and integrated memory controller, so you have to be extremely cautious when raising the Uncore and memory voltages.
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Monst3r · 02-04-09

wow dude fallin in luv with the i7's already haha.. Everything seems to be pretty easy!! 100c temp max on i7's also is awesome!

NrGx · 02-04-09

I wouldn't go with the Phenoms. Even the older Yorkfields are better.

Edit: You bought it already

Enjoy! The i7 are impressive!

sgdude · 02-04-09

Quote:

Originally Posted by Monst3r

thanks man, Forgot to mention Was thinking of going SLI 280's Depending on price range.. a Single will do for now if it's over budget...

go with 1 295 isntead. almost as good as sli 280s ( u wont notice the difference)
but it costs less, uses way less power (a 295 uses about 60 more watts than 1 280) and u can add another later too, and only takes up i pci-e slot
and if u got 2k, u better go i7

sdla4ever · 02-04-09

Quote:

Originally Posted by RAFFY

eVGA 780i FTW
q9550 or e8600
g skill ddr2 900mhz
eVGA sli gtx280's (309$ each)
corsair 1000hx
samsung 22x dvd burner

second this rig

but mayb a Q9650 easily hit 4+ GHz
GTX 295 is 2 GTX 260's on one card so get that for now than another later for massive SLI
could go blu-ray also??

Monst3r · 02-05-09

not really a big fan of blu-ray yet as their isnt any blu-ray software out for video copying etc..

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