Core i5 Overclocking and Feedback

[Athlon2K15]

open up CPUZ then check out the memory tab it will show if your in single or dual channel
and you can give this a read and it will explain dual channel

http://en.wikipedia.org/wiki/Memory_controller

 

[WaXT]

Mine says dual channel

 

[dj-electric]

Im a bit disapointed of my I5 750 on max oc. it does 3400Mhz on 1.13V witch is great but 4.22Ghz require 1.40v witch is a lot. (3920MHZ @ 1.31V)

 

[WaXT]

Lol. Mine can't even go 0.5 volts. xD That's why I should get an aftermarket cooler.

 

[erixx]

...
Also, as you can see in Real Temp at the top, I still use C1E and EIST (C-STATE) and it drops multi and voltage at idle. Still testing those enabled; worked great on my DFI X48 boards. The benefits may not be hugely significant but I sure don't need 4 cores at 4000+ MHz to screw around on the web.

All my oc'ing is done with those enable, I paid for this technology! lol! No, seriously, I think like you: I want max OC only for certain moments, the rest of the day I want the core to slow down.

Here I am using Asus' EPU engine together with its power mode switching, overclocking, and C1E and Eist enabled. Seeing it work (over a g15 keyboard lcd, p.e.) is pure bliss!!!!!!

 

[Wrigleyvillain]

Im a bit disapointed of my I5 750 on max oc. it does 3400Mhz on 1.13V witch is great but 4.22Ghz require 1.40v witch is a lot. (3920MHZ @ 1.31V)

Hmm yeah and thats quite a vcore jump for so little frequency gain at the top end there. Haven't tested mine above 4000/200 bclk yet. Only put together a week or so ago and been gaming etc

Update: Tested my system a bit further today and it too doesn't seem to much like being above 4Ghz nor 200 bclk at least with the types of voltages I care to give it (limit of 1.35 vcore and 1.3 VTT).

 

[overclocking101]

w00t core i5 655k in the house! doing 4ghz 30X134 right now 1.24v (didnt try lowering it i just thought well 1.24 should be enough and its smooth as butter!) only problem is this particular chip has a weak ass imc wont run my ram at 1600mhz 6-8-6 like its rated i have to set it to 7-8-7 god damn it!! my i3 has a bad ass imc runs real low latencies and high mhz

 

[Wrigleyvillain]

Nice! Keep pushing it and post a screenie...

 

[overclocking101]

4.22ghz 1.26v

 

[dj-electric]

yeah, now try four cores
with a base frequency of 2.66Ghz

 

[overclocking101]

http://valid.canardpc.com/show_oc.php?id=1372712 boom! 4.7ghz and climbing 1.37v

 

[dj-electric]

thats nasty, good job

 

[overclocking101]

still climbing 4.8 same voltage!

 

[Wrigleyvillain]

Damn that is a nice chip. Is this at all normal for these or what?

 

[overclocking101]

idk some say they clock good, some say not, mine is an early batch it clocks real well

 

[mudkip]

Finally i got all my parts to build my new system.
Unfortunately the Scythe big Shurkin doesn't fit my gigabyte H55N-USB3 because it covers my pci-e en memory slots. Now I need to find out how to solve this.
I'm probably going to buy memory with no heatspreaders and a small 3rd party cooler (but which one ? -_-).

results for now:

3Ghz @ 1.04v

 

[overclocking101]

for that board you will need something small. maybe a ninja mini or something. also thats excellent voltage for 200 bclck

 

[mudkip]

for that board you will need something small. maybe a ninja mini or something. also thats excellent voltage for 200 bclck

max height for cpu cooler in this case is 7cm that's about 2,75''
Any suggestions?

 

[mstenholm]

I hate to suggest it, but what about a H50 / 70 . You will then have to take care of the rad.

 

[Millennium]

Hi

I have an i5-750 and a gigabyte P55M-UD4 and I can't get over 4ghz stable. Is this normal or should I be gunning for more? My load temps are about 67 degrees so not a lot of headroom there.

 

[Wrigleyvillain]

Hi

I have an i5-750 and a gigabyte P55M-UD4 and I can't get over 4ghz stable. Is this normal or should I be gunning for more? My load temps are about 67 degrees so not a lot of headroom there.

Not necessarily, depends on chip. Need more info. Voltages etc.

First cool day here. Time to see if I can push mine a little further.

 

[mudkip]

Traded my Kingston HyperX 2000MHz with another dude for OCZ Platinum XTC 1600MHz (+he paid 20 euro's) because the kingston's heatspreaders were too high. The amazing thing is that the OCZ 1600MHz kit can overclock to 2050MHz @ 9-9-9-30 1.70v! That's amazing if you ask me. My old ocz platinum xtc tripple channel kut could only overclock to 1800MHz or so.

Screen:

speed in this screen is only 800MHz

 

[erixx]

Just in case someone blindly updates his bios:

The latest Asus Bios for P7P55D, version 1807 is bad for overclocking core/RAM, AND introduces the inability to downgrade your BIOS, so BEWARE!!!!

 

[mastrdrver]

I thought the inability to downgrade the bios on any Asus board was normal?

You can go backwards on Asus boards you just need an engineering version of some bios flasher program. I forget the name sadly.

 

[Wrigleyvillain]

Does anyone know if the 1156 Xeons have the 12x RAM divider like the i7 8xx series?