Overclocking on 1155 SandyBridge not entirely limited to the K series processors?

[newtekie1]

I haven't had a chance to play around with anything 1155 yet. However, I just built my last 1156 rig for a customer and will likely use 1155 from here on.

Anyway, a friend of mine a few states away says he just built an 1155 rig.

He used an ASRock P67 Extreme4 and put a i5 2500.

According to him it does have a "semi-unlocked" multiplier. The stock multipler is 33, but according to him he can adjust the multiplier manually up to 41. If that is true, it means that these non-K processor will still be able to overclock to 4.1GHz(4.2GHz for i7-2600).

Anyone else actually played with these processors and seen how the multiplier actually works on these or heard anything like this?

Edit: Found this video with Linus confirming that on the P67 chipset processors supporting Turbo are allowed to overclock the processor 8 Multipliers higher than the stock, on the H67 chipset you can't.

 

[WarhammerTX]

I haven't seen a lot yet but read a post where someone had a 2600 to 4.6 stable I'm sure in the near future we will see more results

 

[LAN_deRf_HA]

See I always figured that like with 1366 that board makers would figure out how to abuse the turbo multiplier, forcing it on max and on all cores... but I never saw any news about this for sandybridge so I assumed they must not have achieved it. I suppose it's possible nobody bothered to try yet and that the board makers just aren't advertising it.

 

[newtekie1]

See I always figured that like with 1366 that board makers would figure out how to abuse the turbo multiplier, forcing it on max and on all cores... but I never saw any news about this for sandybridge so I assumed they must not have achieved it. I suppose it's possible nobody bothered to try yet and that the board makers just aren't advertising it.

According to the video I found, it isn't just manipulating the Turbo Multiplier, it is actually Intel building in the ability to adjust the multiplier beyond what Turbo would normally allow. It seems Intel wasn't totally insane when they blocked out BCLK overclocking, just slightly insane.

 

[LAN_deRf_HA]

You know now that I think about it I do have a faint memory of very early on hearing that non-k chips would have limited unclocked multipliers. Seems everyone forgot about this? Odd. Think until there's a larger price gap I'd still go with a k.

 

[overclocking101]

the multi will go to 41 if you use less then 4 cores. also bclck can go as high as 105

 

[KieX]

On my UD4 it lets you overclock by stating which Turbo multiplier to use as base and which one to use for the AutoOC per core. (EDIT: So you could say 41multi base and 41 multi per core). Having a "K" series I've not bothered using that, but it seems that the feature is there in order overclock non "K" series:

Source of image

 

[newtekie1]

On my UD4 it lets you overclock by stating which Turbo multiplier to use as base and which one to use for the AutoOC per core. (EDIT: So you could say 41multi base and 41 multi per core). Having a "K" series I've not bothered using that, but it seems that the feature is there in order overclock non "K" series:

http://images.anandtech.com/reviews/cpu/intel/sandybridge/review/limitedunlock_sm.jpg
Source of image

Cool, so he isn't insane.

Though I don't know how accurate the chart is, because when all 4 cores are loaded the processors still turbo 4 multipliers higher from what I've read.

 

[CBRworm]

These new-fangled core i gen 2 processors are confusing.

I have an i7-2600k, starting out with all the default settings it will hold 3.5ghz at 100% CPU utilization. So it seems that with everything set to normal - no overclock, it will still add 2 bins under a 4 core load.

I don't know when it is actually 3.3ghz - I have not seen that number yet. With an offset voltage of -.005 I was able to run stable at 3.8ghz with loadline disabled (regular) and speedstep and 'turbo' operational.

The BIOS (EFI) options seem confusing after so many years of the same stuff. Time to start learning all over again.

 

[PaulieG]

Received my Biostar TP67XE today, and my 2500K comes tomorrow. I ONLY bought SB for the curiosity, and to play with something new that I'm not familiar with. Just like we have when any new platform is introduced, TPU members will learn how to properly tweak these little beasts together. Honestly, that's what makes it fun.

 

[xbonez]

2600K allows you to push the multiplier upto 56 for 5.6Ghz. See the link in my sig for my OC'ing experience.

 

[newtekie1]

Received my Biostar TP67XE today, and my 2500K comes tomorrow. I ONLY bought SB for the curiosity, and to play with something new that I'm not familiar with. Just like we have when any new platform is introduced, TPU members will learn how to properly tweak these little beasts together. Honestly, that's what makes it fun.

Yeah, I'm getting real tempted to buy a non-K with a P67 board just to play around a little, then probably get a K processor later. They say curiosity killed the cat, it seems it also kills wallets.

 

[PaulieG]

Yeah, I'm getting real tempted to buy a non-K with a P67 board just to play around a little, then probably get a K processor later. They say curiosity killed the cat, it seems it also kills wallets.

It's funny though. Taking a loss when buying new hardware can be limited, if you don't wait too long to sell old stuff. I rarely spend more than a couple hundred beyond what I get back from selling when upgrading an entire rig.

 

[newtekie1]

It's funny though. Taking a loss when buying new hardware can be limited, if you don't wait too long to sell old stuff. I rarely spend more than a couple hundred beyond what I get back from selling when upgrading an entire rig.

My problem is I can't let good hardware go. So I always end up domoting my main rig, and buying new. Though maybe I'll start selling off my older Pentium D rigs to drum up a little cash to upgrade my main rig to SandyBridge.