have i got a stable oc-sorry new to this

Thekwango

Thekwango

Thekwango

Soldato
Joined
5 Feb 2009
Posts
17,062
Location
N. Ireland
hi, just wondering if any1 can tell me if i've done things right...so today i made my first tentative steps into overclocking. i did the following;

turned off C1E, Turbo Boost and CPU EIST, disabled auto QPI clock rotation and set it to x32

I set my CPU clock ratio to 20x and BCLK freq to 160.

I originally had to use XMP to get my memory to run at full speed (1600) had to change that to manual and set it the multiplier to 10 to stop it going over its rated settings. The only thing i did notice was that the memory timings then changed from 8/8/8/24 to 9/9/9/24, this anything to worry about? I'm guessing not or rather hoping not.

this all got me upto 3.2ghz

I ran the prime95 blend test for over an hour without any errors and temps never went above 54/52/50/50 using both coretemp and HWmonitor.

ran a couple of games(BFBC2&MW2) for about an hour also and didnt encounter any problems. so is it safe for me to assume that i have reached a stable overclock (well as stable as any overclock can be)

just to note i never touched any voltages, as the saying goes dont wanna run before i can walk!! :D
 
if u have D0 chip just do so

167 blck
21 multi
cpu volt 1.17 if its unstable give it 1.2 thats safe temo

i am using this setting but i have cooler venomousx with 2 apolis so my temps after lynx 1.2 hour for full mem never passes 60
 
this is gonna sound silly i'm sure but how do i know if i have D0 chip, i've only ever seen the term D0 in relation to i7s? and what is the difference between D0 chip and a non chip? sorry to be a pain:o
 
Last edited:
Not really, its just slackend your memory to compensate for the new settings - you could always tighten them and give them abit more voltage - but idk in all truth its not gonna make a great deal of a diff I dont think.

http://communities.intel.com/thread/4298 that should answer your D0 question :p

also this thread, http://forums.overclockers.co.uk/showthread.php?t=18000192


I did just read this though, The S-Spec # will be SLBCH for C0 and SLBEJ for D0. The actual stepping is never explicitly stated as C0 or D0
 
Last edited:
I did just read this though, The S-Spec # will be SLBCH for C0 and SLBEJ for D0. The actual stepping is never explicitly stated as C0 or D0
Click to expand...

you might as well be speaking swahili.....lol

so much for thinking i was getting to grips with cpu technical speak! :o
 
Me again:p

re my original post, all is still running smoothly as per the settings i changed. (quite chuffed by this, even tho i didn't really have to do much!).

here's the question(s)

if i wanna try to go any higher will i have to look at playing with voltages? know nadda about changing those yet, so more reading ahead i guess! also i'm guessing i'll probably need a better cooler. currently using a CM hyper 212-PLUS, only bought it as it was going cheap and didnt think i'd need anything better. but i think i'm becoming addicted-up to all hours reading these forums-lol

cheers in advance
 
Not sure the reason of confusing him about d0 chips when he has an i5 750..

What you want to do is keep nudging the bclk up until it won't boot or is unstable in windows (BSOD, programs stop responding etc) and then play with the voltages. You will most likely only need to increase the vcore and vtt for this.

In the mean time I would recommend taking them off auto and putting them onto the lowest settings, this is espcially important for vtt as the i5 range has a low maximum for this due to the integrated PCI-E controller (think its about 1.26v? Someone else will be able to confirm)

At your current clock your RAM is running at 1600mhz so will be able to use its stock timings, just put these in the bios under "DRAM timings" or similar. If you increase the bclk further you will start overclocking your RAM so will want to drop that down to x8 to underclock it.

Rule to remember is that your QPI speed must be double your RAM speed, so 1600mhz RAM needs 3200mhz or more QPI. Temps wise I would not want to go over 80c on an i7 chip, again unsure on recommended max for i5's and sure someone else can chip in

Testing wise, 8hrs of Prime blend and 15 runs of linx/IBT are generally seen as stable, i find it very easy to be Linx stable but not Prime. I generally do 10 runs of linx and/or 1hr of prime blend to get an idea of stability at a given clock before moving on, once happy with your clock do the full 8hrs to confirm stability and max temps
 
Not sure the reason of confusing him about d0 chips when he has an i5 750
Click to expand...

i was right in thinking d0 only applied to certain i7 chips?

many thanks PaulyD, tho i'm sure i'll be back more questions in the not too distant future-i'm afraid i dont trust my own judgement on these things-and always need a little bit of advice/encouragement that i'm moving in the right direction.

so sorry in advance :p
 
Missed your reply last night mate.

Yep correct in thinking that about the chips :)

Not a problem, everyone is here to help, just remember to say what voltages your using for your clocks, what temps your getting and what error messages/BSODs and people should be able to give you a much more informed idea about what to try
 
You must log in or register to reply here.
Back
Top Bottom