If ur on stock intel hsf pls stop ur o/c. It's the worst hsf for o/c. Even running a Stock I5 750 or 760 easily temps hit 7x - 8x range with the original hsf. Once u change to c.m or any reputable hsf, i'm sure u will see around 5x - 6x range of temps when max load.

Few tips to remember when o/c

Vcore Max 1.4V To be safe 1.35.
PLL and other stuff increase if need. I usually o/c X58 and P55 by trying to hit 200 bclock then only tune the ram and multipliers. But to do so u must reduce ur multiplier to the lowest which is either 10 or 12 depends on processor and try to run ur rams as 1066 or 1333 as low as possible even if ur running 1600 or 1866 or even higher rams. But to hit 200 bclock u need to increase pll and vtt and this really depends on mobo. On gigabyte I never need to touch anything beside vcore, but I found that the voltage is slightly overvolt by gigabyte hence I usually tune it down a few notch. Asus is quite easy as the bios will show last used volts and u can search ur best volts from there, this is my experience with asus rog series mobo not sure if the bios acts same with other series.

For ur P7h55 if it's the same as the Gigabyte H55 USB3 I used b4, u need to manually set most of the voltage. If ur northbridge / southbridge dun have fan then best is to go max till 166 bclk as I notice it gets very warm once goin 200 bclk or beyond.

Or mebe u can dig sum info here they have more detailed info bout vtt n stuff which u could use as a guide for your own o/c.
I7 760 OC Club

This post has been edited by WTSNWTB: Jan 20 2012, 04:58 PM

Erm that's I3 rite ? I think u can hit 4.5 or mebe around there. I tried running I3-530 wif Max 3 Gene and manage to get around 4.4 with around 1.375 vcore. Never really did much stressing juz manage to run sum 3dmark and few days of gaming then moved to I5. Quite a bad timing for the 1156 platform as I used to own a very good I7 860 which easily hit 4.2 wif juz 1.3 vcore.

One thing I really like bout I3 is the power is so low and the processing power is quite good as well hence I use the rig as a daily download + dota 2 online gaming rig.

U never state ur mobo so i assume the normal overclockable mobo settings. Ur ram can keep 1333 as long as ur multiplier or divider is correct. Make sure it's at 1333 no higher but if ur using kvr 1333 u should be able to hit 1600mhz if it's using elpida chipset. I tried most kingston also manage to hit 1600 juz mebe timing around 9 9 9 27 or 28 wif 1.65v dimm.

I duno why but I always like to make my fsb 200. I kept wif x58 and 1156 coz both can hit 200 fsb sandy is kinda lock around 100mhz so i never venture to this.

Just keep in mind max vcore is 1.35 - 1.4 so ur safe if it's 1.35 or below. The rest is juz up to u to test and feel.

If h55m u need to watch out for ur vrm temps, those mosfets or chips there tends to go very hot if o/c and especially 200 fsb. I blew up a few H55 and P55 when I never watch out for the temps and voltage. Higher fsb usually is harder for certain mobos. Make sure never run ur vcore higher than 1.4 safest is 1.35 and pll vtt those I remember must be around 1.2 or something never higher. Do check those p55 club forums for better understanding as it's been quite awhile I kinda forgoten those specs.

Btw juz a pic of my noob o/c.



I try to dig out the 4.2ghz on P55-UD6 but that confirm blew the mosfet or mobo due to the 1156 fiasco coz of foxconn socket problem. Mainly I believe is the cover and not socket coz it couldn't push the processor down enough to have tight contact wif the connectors.

Lower than 1333mhz then u should tighten ur timings. If it's elpida u should be able to run 9 9 9 24 or 9 9 9 26 for 1600mhz. But make sure u can pump 1.65 vdimm. Else if below 1333 8 8 8 22 or 7 7 7 21 should be possible. Ram timing really not that important when ur tryin to aim for overclock coz usually u try to get a stable clock 1st then only tighten ur ram timing. Some people use lower ram clock so u can ensure the pc stability is not hindered by ur rams.

If bclk 200 then ur ram will be around 1200 not sure if there's 1400 ?. U can try to get higher mhz for ur cpu 1st then only tune ur ram is up to u to pick which u wanna tune 1st. If 9 9 9 27 can't then u can try higher like 9 10 9 27 or 26. I tried b4 using juz kingston chip it can still work if they r elpida or micron rebadge.

For 3.5 ur vc is juz 1.2175 mebe u can hit quite high for 1.3 or mebe 1.275. Just need to keep on trying and trying stressing till ur happy. But for me once I found my high then i juz downclock it for daily use as 2.2 or 2.4 is more than enough for my daily use. I even game wif 2.4 usually unless I feel lag then only I up the processor. Sometimes I actually wonder if we need higher than 3ghz for normal use. But it's really a big diff if u do decoding or encoding for video or processing data as it's quite time saving.

Did u install newest bios ? Drivers ? (Intel INF, Storage, sound, graphics card,) Turn off all c3, c4, c5 or any c power saving stuff, intel power saving stuff in bios. Btw for ur setup u should be able to hit 4ghz with proper settings.



The attached pic is a rig which I juz revived back with below parts

I5 750 running at 20X200Bclk @ 1.275VC w/ XSPC Rasa W/B
Asus P7P55D (Need to check bios for the Voltage setting)
Corsair Vengeance 4GB X 2 running at 9X9X9X24X130X1T @ 1.55VDimm
Asus GTX 480 OC to 800 Core 980 Mem 1600 Shader w/ Aquagrafx W/B
Seagate 500GB 7200.12 X 2 Raid0
C.M Silent Pro 850w Psu