Am i doing this right?

[bavman]

So this was my first attempt to ever overclock my computer and honestly i didnt know what i was doing. Does all this look ok?

i7-860 (3.64ghz), hyper 212+
4gb dd3 1600mhz (7/8/7/24)

These are my settings for my bois:
BCLK; 173
CPU ratio: 21
DRAM frequency: 1730 mhz (7/8/7/24)
VDRAM: 1.6 -> 1.65
speedstep: Disabled
QPI: auto
vcpu: 1.1875 (I have been dropping this everytime i boot to decrease temp, and my computer is still stable, should i drop it more?)
IMCV: auto
CPU PLL: 1.8125 (again this was set to 1.8 but i raised it for some reason, should i drop it again?)
PCHV: auto
cpu spreadspectrum: disabled
pcie spread: disabled
LLC : enabled
cie support: disabled
c-state: disabled


With this i hit a max of 75*C in prime95, should i do other testing? I disabled all that stuff up there cause it told me to in the guide i read, but now which ones should i re-enable? also, does everything look ok?

 

[redechelon]

I dont know about the diasbled options... I have been wondering about speedstep myself. I do think you should go as low as you can with the vcore until you get errors, then kick it back up a notch or two. 75C isn't bad or anything, but if you can get it lower it'd be better... for power consumption and ambient temps also.

And if your ram doesn't mind the overclock, that's nice. =]

 

[bavman]

I just got an error in prime 95: Rounding was 0.4992675781, expected less than 0.4
Does anyone know what this meas?

 

[redechelon]

Just an error.. How soon did it give you the error? What RAM do you have? Try lowering your memory frequency.

EDIT: So either lower your memory multiplier to 8x for the time being (If it runs P95 stable, it was your memory), or change your BCLK around a bit so you reach ~1600MHz. If you're willing to try it, a 200 BCLK * 19 would be 3.8 on the CPU and 200 * 8 = 1600MHz on the ram.

Or... 190 BLCK would be 3.6 like you have, but the memory would be underclocked a bit.

 

[bavman]

Ok im gonna give that a shot right now but since im gonne be decreasing the multiplier to increase blck would that require a vcpu increase too? Because right now to be stable at 3.64 its running a little hot (80*) and i dont really want it to reach that high.

Suppose i do reach 3.8 with 19 multiplier, and get ram running at 1600, would i have to retard the timings for it or would 7-8-7-24 be ok at 1600 still? I think it would be the same right? and that timing is retarded only when ram is overclocked?

 

[redechelon]

If you just change around multipliers and BLCK, but its still running at the same frequency, you should keep the same vcore. If you run at 3.8 from 3.6, then yeah increase vcore a bit.

And for your timings, just set them to what they're rated at... even [Auto] on the timings if you want for now. Once you're positive your CPU is 100% stable, then start to lower your timings. Unless you're positive they run fine at 7-8-7-24.

EDIT: Oh, and do you have an aftermarket cooler or stock? Personally, I wouldn't want it over 80C on load.

 

[bavman]

I have a hyper 212+, but i read that you should try to limit max cpu to around 74-76*, something like that.

 

[redechelon]

Hmm, I don't know about temps for the 870 or if its different from a 920/930, but lots of people say it's safe to run a 920/930 at 85C load. Not RECOMMENDED, but should be safe.. so if the 870 is similar, you're good.

If you get a stable clock that high, with that little voltage, that's good...
Most bring it up to ~1.3v

 

[rotmammoth]

hey guys, how do you change your multiplier cause mine is always at 21. Not sure what I should go for but 4.2 is a bit too high so im guessing 4.0?

My build:
Asus P7P55D Pro Motherboard
Corsair Dual Channel 4096MB PC12800 DDR3 1600MHz Memory (2 x 2048MB)
Intel Core i5 750 Processor - 2.66 Ghz

 

[rotmammoth]

oh yea, am i supposed to do the voltages manually or just put auto? thanks for the help

 

[bavman]

Rotmammoth, I dont know about your motherboard, but i have the p7p55-e pro which im guessing is really close to yours. On mine all i have to do it type in the new multiplier with the number pad. You can go as high as you want, 4.2 is fine, as long as your not cooking your cpu. Im trying to keep mine around 75ish with max load. You'll need to do the voltage manually, for me at least i always crash once i clocked higher than stock speed with auto on. I put mine on 2.25 and went as high as i wanted, then started lowering vcpu one step at a time each time i boot until i was unstable then bumped it up to.

This was my first time o.c.ing and its really not that hard, you just gotta play around with it and take small gradual steps.

 

[iamshadow]

^
I've got the same motherboard as you. Whenever I change the vcore, it wouldnt reflect on CPU-z. My vcore was set to 1.25 and I raised it up to 1.3 but when I checked on CPU-z, it still shows 1.25. Any idea on how to fix that?

 

[bavman]

What you set your vcpu to doesnt mean it will use that much. Its caused by vdroop:

http://www.thetechrepository.com/showthread.php?t=126

Im not to sure about higher voltages like the ones your trying to use because i could never get that far cause i didnt want to go past my temp limit, but if your stable ask around about safe voltages. I think i read somewhere that you shouldnt ever set it higher than 1.3, that should be your limit.

 

[iamshadow]

^
Thanks for that link bavman. I'va watched videos on youtube already about vdroop and they're doing some kind of "eraser thing". Not sure if you've heard of that already. By the way, why is it that I cant start a thread here. After I clicked on Ask the Community, there's no submit button...

 

[rotmammoth]

Really? You're not supposed to go over 1.3V? I'm using 1.3125 just to get a stable 3.6 ghz OC. Kind of weird how I need to use that much for such a little OC.