TPU's Core i7 Overclocking and Feedback

[wsarahan]

Thats not that high on vcore for 4.0
Try 1.34 vcore and turn ht back on. If you temps will allow you that much.

HI man, thanks for the quick reply

i tried 1,34 and 1,35 with ht on, but no sucess, i see a lot of people with ht on and stable with 1,27, 1,30, i don`t know why i can`t do that, please, do you have any idea or a tip for me?

Thanks

 

[t_ski]

You probably need to bump IOH and ICH up a little

 

[wsarahan]

You probably need to bump IOH and ICH up a little

How much?

 

[Chicken Patty]

Go up notch by notch start at like 1.15v or something. ICH just a tad over default I would say. I leave mine auto though. But not all boards/systems are the same or have the same load.

 

[mastrdrver]

Xmp mode Oc

Have you tried any other mode? If not put it on manual and try again.

 

[t_ski]

How much?

How ever much you are comfortable with. Perhaps you could go up as high as the "normal" settings in the BIOS. For me, the "normal" settings are white, then change to green when they start to go over the recommended limits. In other BIOS's I've seen them go from white to yellow to red.

In all, you really only want to set these as high as you need them. If you start with the highest "normal" setting, see if it's stable. If it is, try backing them down a notch or two at a time to see where you become unstable. Sometimes too much voltage can cause other issues, just like not enough voltage. And, as always, what works for one person on one system does not always mean that it should be the same for another person on another system. See what works for you.

 

[mastrdrver]

If you really want to be able to understand how to overclock the i7, you need to figure out which one you have.

Which of the four different types of i7s (1366) do you have?

It can be a fine balance so far come across 4 types of core i7 cpus from my rounds on forums and my own experience

Type 1 - core i7 cpus that need high to very high cpu vtt to overclock for memory and bclk.

Type 2 - core i7 cpus that like low-medium low cpu vtt to overclock for memory and bclk and scale with cpu vtt and memory voltage

Type 3 - core i7 cpus that only like low-medium low cpu vtt to overclock for memory and bclk BUT DO NOT scale for either cpu vtt and memory voltage or both

Type 4 - core i7 cpus that like cpu vtt close to vcore so you may find the cpu needs high vcore for lower clocks due to cpu vtt requirement for those clocks.

low cpu vtt = 1.3-1.35v
medium cpu vtt = 1.35-1.5v
high cpu vtt = 1.5-1.55v
very high cpu vtt = >1.55-1.65v

I never understood this until just the other day. I found out I have a type 4. Usually, these need vvt and vcore to be .25v to .3v of each other. At least for mine, this is only if I keep uncore 2x ram. Given that, I can now jump from my 20x200 to 21x200. So, I can bump vcore to 1.35 and vvt to 1.375 and know it will boot and be somewhat stable without needing to do any testing. This is important as my Vendetta 2 is incapable of handling the heat from this voltage. Give this is about .1v over my known stable 4ghz clock, I'm guessing I'm at least 3dmark stable. Whether it will produce the best score is another matter.

 

[Fitseries3]

I've needed .125v more vcore to get from "stable" to "3dm stable".

My new mushkins are giving me troubles.

They run amazingly welll under 2000mhz but are a complete asshole over 2000mhz.

They are elpidas so they will run 2133mhz at the least but I can't find what the system wants

 

[mastrdrver]

I ran 21x210 at 1.375 vcore and 1.4 vvt just because I didn't want to go over 1.4 vvt. I think highest I got was 27500 or so. Wasn't sure if that's normal. Tried upping ioh slowly to see if anything changed but didn't see any. Maybe I wasn't running enough? Was about 1.20 or 1.22.

 

[t_ski]

I've needed .125v more vcore to get from "stable" to "3dm stable".

For me it's been the other way around, but I guess that's what our definition of stable is. For me, I could run 3DMV at 4.2GHz but I couldn't prime at same speed until I added some more juice. I finally got it to prime for 14 hours over Sunday night.

 

[Fitseries3]

anyone care to play me in 03, 05, or 06?

 

[Chicken Patty]

bring it on sista!!!

I was just kidding.

 

[Fitseries3]

 

[shevanel]

the agony of awaiting my board from rma is too much to bare.

 

[Fitseries3]

 

[Fitseries3]

 

[Chicken Patty]

those 295's just don't scale well in 06. However, good runs though fit

 

[Fitseries3]

 

[HammerON]

anyone care to play me in 03, 05, or 06?

http://img.techpowerup.org/091103/Capture011.jpg

Uhm ~ how about "no"

 

[Fitseries3]

those 295's just don't scale well in 06. However, good runs though fit

u kidding?

this is a single 295 co-op card.

this smashes most ppls setups in the face.

 

[Fitseries3]

Uhm ~ how about "no"

why not?

did i set the bar too high?

 

[Chicken Patty]

u kidding?

this is a single 295 co-op card.

this smashes most ppls setups in the face.

brain fart! I saw 2 GPU's in GPUz and I thought two cards. In this case, they do scale good

 

[HammerON]

why not?

did i set the bar too high?

If I still had my Asus GTX 295 maybe; but with my GTX 275~~~~~
Hell NO

By the way - have you found a second Co-op yet?

 

[Fitseries3]

well someone has to give me something to compare to...

 

[HammerON]

I was checking out your 3DMark 06 score with 2 4870 X2's. Pretty close to your single GTX 295!