Intel Sandy Bridge 2600K and 2500K Processors @ [H]

i was at the asus rog event in frys sunnyvale and they had a contest on who can safely (test for a short period of time only) overclock a 2500k on Maximus IV GENE-Z, dont know the other specs but the contest is you have 10 minutes using rog software to get as high of an overclock safely and the most efficient (voltage used) oc on the 2500k. when i left somebody had that setup running at 5.125ghz, they were using a corsair hsf with push pull fans.

not really familiar with corsair hsf lineup...
winner get a free rog motherboard and a gtx 560
 
Got my 2600k overclocked to 4.6Ghz w/ HT @ 1.345v in bios. Not the best chip in the world compared to what I have been reading, but it lines up pretty well. Ran this Small and Large FFT in P95 24 hours each.

I did get it to boot in to windows @ 5Ghz w/ HT @ 1.4v but would lock up right as P95 started. Bet it can be stable with more juice and a nice water loop down the road.
 
i wish i had forgone the i5 750 and went with a 2600K alas i'll have to live with my setup haha, kudos man!
 
Picked up a 2600K, Asus P8Z68-V Pro, Patriot G2 Series - Division 2 Edition DDR3 (1600), and an H50. What should I aim for as a stable overclock that won't destroy my power bill?

Will be installed in a HAF-X, with Corsair HX 750, GTX 460 (for now, might pick up a second one if the price is right).
 
Great review. This was just what I was looking for to perform a system upgrade.

I've finally pulled to the plug to upgrade my LGA 775 system. I went with an i5 2500K CPU and the Asus P8P67 motherboard you just reviewed. Can't wait to get them in the mail. I already have an Asus 460GTX video card in there. So it will be nice to have all relatively new parts.

Bye bye good ole Dual Core E6300! May ye rest in peace.
 
DarkSaturn said:
Picked up a 2600K, Asus P8Z68-V Pro, Patriot G2 Series - Division 2 Edition DDR3 (1600), and an H50. What should I aim for as a stable overclock that won't destroy my power bill?

Will be installed in a HAF-X, with Corsair HX 750, GTX 460 (for now, might pick up a second one if the price is right).
Click to expand...

I just hit 40x and left voltage stock, haven't had any problems until I decide to do something like 44x without changing voltage.

Left it at 4GHz as I didn't need the extra proc power or voltage increase.
 
Purchased an i2600K and Asus P8Z68-V Pro motherboard with Kingston HyperX ram. Overclocked currently to 4.5 GHz w/ my 6950 @ 6970 specs and overclocked to 950/1450 scoring about P6103 in 3dmark11.

Very happy with the new system. Much faster than the Q6600 I had for over 3.5 years.

Voltage is auto adjust and goes up to 1.38V. Is that safe?
Thus far, system is rock solid.
 
KickAssCop said:
Purchased an i2600K and Asus P8Z68-V Pro motherboard with Kingston HyperX ram. Overclocked currently to 4.5 GHz w/ my 6950 @ 6970 specs and overclocked to 950/1450 scoring about P6103 in 3dmark11.

Very happy with the new system. Much faster than the Q6600 I had for over 3.5 years.

Voltage is auto adjust and goes up to 1.38V. Is that safe?
Thus far, system is rock solid.
Click to expand...

it is safe, but it might not have to be set that high. i am running at 4.5 with 1.275 set in the bios. i would test at a lower voltage to see if it will run stable.
 
Anyone here got a similar setup..

MSI GD80 Z68 Mobo
Intel i2600k
Antec Kuhler 920
Ripjaws Gskill 16gig DDR3

I'd like to compare my BIOS setup if that's possible. I'm currently at 4.8 with 1.41vcore and Avg 74c (highest from all cores) during 4hrs of Battlefield Bad COmpany 2 playtime. I know 1.41vcore seems high and I manually set my RAM volt to 1.630. Thanks in advance.
 
5GHzBench-1.jpg
 
color me green with envy, what cooler are u using for that 5ghz OC? board? ram?
 
you are going to burn that cpu out!! you are at 1.58v and idling in the 50's. what are the load temps?
 
I am using Zalman 9900 max. Voltage is high because I set it to auto. Need to bring down the voltage. Load temps are shown in maximum temprature column. Need to try different volts I guess.

Currently running 4.5 with 1.3 V forced manually.
 
Pleased with my new 2500k setup so far. Still fiddling, but 12+ hr OCCT/Prime95 stable so far at 4.715Ghz. Set at 102.5x46 @ 1.31v through the Asus software. Not set in bios yet as I am still messing around. Under 100% load, cpu voltage shoots up to 1.38v according to the voltage monitor...opposite of vdroop and I only have LLC set to medium, so I am guessing the Voltage offset set to Auto is what is giving the additional voltage boost. Max temperatures reported using coretemp peak at 66C (core 2) with 82F intake air temperature.
 
zeroARMY said:
Jeeze, I'd pay a premium for that chip
Click to expand...

Me too, I got mine upto 5ghz on a custom watercooling setup, altough I needed 1.415v to get it there and 1.44v to get it stable. Temps were in the 70s with prime95 running.
 
Why my i7 2600K OC 4.4GHz in LinX and Intelburntest Gflops output so low compare to others ?
Memory speed is 1600MHz (8-8-8-24)



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Building my new pc this week on the 2600k see specs in my sig. Should it be a massive difference coming from core2duo? :D
 
can u just use "low-end" to "mid-range" ram for a 2600k build because you can keep the bclk the same but up the multi? do people just use the higher end ram for the more agressive timings?

also on SB is 1.5v ram a must?
 
Not sure if the ram I got is considered high end, but I'm going after at least 1600, I think it can be overclocked higher and the timing can be adjusted
 
gigatexal said:
can u just use "low-end" to "mid-range" ram for a 2600k build because you can keep the bclk the same but up the multi? do people just use the higher end ram for the more agressive timings?

also on SB is 1.5v ram a must?
Click to expand...

no
and
no.

cheap ram works well, speed isn't an issue at 4.5ghz and up.
ram timings dosnt affect your daily use, I get cheap ass ram and run it.
 
I got a 920 and a 2600k which one should I build for and what should I do with the other.I was thinking on build a gaming rig with my 2600k and building a HTPC with my 920.
 
depends how far you can overclock each.

The 920 should be better with dual and certainly tri video cards
 
WOW this pc is crazy fast compared to old one, have it running at 4.8ghz with ram at 1833mhz. :D
 
I just bought a Gigabyte Z68X-UD4-B3 with a i7 2600K and Noctua NH-D14. Trying to hit 5.0Ghz at less than or equal to 1.4V. What are my chances?

I got GSkill RipJaws 1866 C9, 16GB worth. Should I push that to a higher frequency or try to run at that 1600Mhz at cas 7?

I'll be doing mainly Photoshop, web development, and Video Editing.

Thanks!
 
/337 said:
Building my new pc this week on the 2600k see specs in my sig. Should it be a massive difference coming from core2duo? :D
Click to expand...

Wow, I noticed a huge improvement even from a Core2Duo to a Quad Core!. Get ready to be blow away! How did your install go?
 
I've done mild overclocks on CPU's for years and I'm doing the same with this 2600k. It seems to react slightly differently than chips I've played with recently.
It will run prime at 44x all day long and barely break 65c on the hottest core (using CM hyper212+). I'm actually running a -0.005v offset on the cpu and the cpu voltage doesn't exceed 1.265v under load, but it won't run 46x even with 1.4v+ it won't even get past the bios.

This is not a big deal as I prefer to run my systems on the cool side but I'm used to pushing them until they start to get flaky and back them off not just run stock voltage to a high multiple and pretty much stop dead with no transition.
 
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