Intel Core i5 & i7 Sandy Bridge Overclocking and Feedback

[cadaveca]

The plus side to that is basically every "K" chip will do 4.5 GHz, and will do that 4.5 GHz @ less than 125W. That's killer grunt for very little power.

Personally, I do not think the 2600K should be more than $259, and the 2500K, is perfectly priced, in my books. Intel should have released a "2650K" that hit 5.0 GHz every time, and charged $499 for it. The price difference between a 4.5 GHz and 5.0 GHz CPU wouldn't put very many people off...as long as it's not $999 or more, people would still snap them up.

 

[t_ski]

At this point, I am just looking to get into Sandy Bridge, and may move up to a nicer CPU later. However, I need something "less expensive" right now, and $200-300 for a chip is not in my budget. It would be really nice to have a 2600K by the next Chimp Challenge though

 

[Ross211]

Ross... your Vcore is too high. recommend staying under 1.4v as much as possible. any higher then that and it WILL kill your CPU.

theres a thread on Xtreme forums where a guy ran 1.45v-1.5v through his new 2500k and it was dead within 2 weeks.

id go as high as 1.35-1.38v if it wont clock to the moon on that voltage. then you just have to accept that it wont do it. and leave it be instead of pushing your luck

Thanks for the advice. I shouldn't have put as much juice in it as I did to see if it would reach 50x but I'm content now knowing it will :~)

I'm happy now at 4.2 Ghz with a vcore lower than the VID (1.28'ish volts). I'm using the Offset method in "-" mode.

/edit

At this point, I am just looking to get into Sandy Bridge, and may move up to a nicer CPU later. However, I need something "less expensive" right now, and $200-300 for a chip is not in my budget. It would be really nice to have a 2600K by the next Chimp Challenge though

Dude you have a 980x !!! Is it for a different PC ?

 

[t_ski]

Yes, this is for the kids' PC

 

[trt740]

decent voltage for 4.5ghz anyone

 

[Frizz]

decent voltage for 4.5ghz anyone

around 1.3vcore-1.35vcore is average if you can do lower then congrats.

 

[POGE]

Day 1 results from my first proc, I have a couple more to test hopefully I'll have better results this is on SS btw

SuperPi 1M:

 

[trt740]

around 1.3vcore-1.35vcore is average if you can do lower then congrats.

Okay have it at 1.328v trying lower and it's at 4.8ghz now. So a safe voltage on air 24/7 with droop is 1.35v or less correct? Thats on air cooling.

 

[PaulieG]

around 1.3vcore-1.35vcore is average if you can do lower then congrats.

Really? Most good chips will do 4.5ghz on 1.27-1.32v. At least the 5 chips I've owned would.

okay have it at 1.328v trying lower

I think you can get it a little lower than that.

 

[trt740]

Really? Most good chips will do 4.5ghz on 1.27-1.32v. At least the 5 chips I've owned would.



I think you can get it a little lower than that.

Well finally got a 1155 mount for my Pro Meg, so I strapped her on and here we go. I like how that sounded in a strange way.


Man jaw dropping performance at 4.8ghz. Pro Meg is keeping it in the 65c range in a closed case with one fan and cheap ass heat paste.

 

[Frizz]

Really? Most good chips will do 4.5ghz on 1.27-1.32v. At least the 5 chips I've owned would.



I think you can get it a little lower than that.

I am probably just having badluck, my first 2500k couldn't hold 4.5ghz stable at 1.395vcore with the same motherboard I have now hence why I put my average so high . And the chip I bought pre-binned from the US can only handle 1.296 in turbo mode so I'd probably need a good 1.3+ to get a good fixed voltage at this OC.

 

[PaulieG]

Okay have it at 1.328v trying lower and it's at 4.8ghz now. So a safe voltage on air 24/7 with droop is 1.35v or less correct? Thats on air cooling.

Did you edit this from 4.5 to 4.8? My response on going lower than 1.328v was regarding 4.5ghz. If you can get stable at 4.8, then you've got yourself a really nice chip. Screenies please!!

 

[trt740]

Did you edit this from 4.5 to 4.8? My response on going lower than 1.328v was regarding 4.5ghz. If you can get stable at 4.8, then you've got yourself a really nice chip. Screenies please!!

Yes it does 4.8ghz at 1.328v and okay will do that but give me a while I am priming 4.5ghz at 1.288v now. Most setting are on auto so give me a bit to figure out this evil empire equipment. This is a hell of a motherboard and Asus has out done themselves stability wise.

 

[cadaveca]

not much to figure out..pretty simple clocking on 1155.

take PWM up to 340Hz or so, and you might just be able to drop volts even more.

 

[trt740]

not much to figure out..pretty simple clocking on 1155.

take PWM up to 340Hz or so, and you might just be able to drop volts even more.

Yes thats true kill joy we all figured that out look at your clocks and I'm not showing off my overclocking prowess here it is more about the chip. Thx for the advice will give that a try.

 

[cadaveca]

I never said it was a bad thing that it's so easy! Really, i think that's fantastic...Intel has done a great job making it so easy. Less time tweaking, more time enjoying having all that power on tap. It's win-win. I don't count overclocking as a skill. This platform proves it.

 

[Ross211]

not much to figure out..pretty simple clocking on 1155.

take PWM up to 340Hz or so, and you might just be able to drop volts even more.

When you say PWM to 340 Mhz or so, do you mean the same as setting VRM Frequency to manual and VRM Frequency Mode to about 340 Mhz ? I didn't know if the setting was labeled different in the Asus Sabertooth or not.

Would you recommend setting VRM Frequency manual to 340'ish Mhz for a 4.5 Ghz clock ?

I remember changing VRM Frequency to 350 Mhz for anything above 4.6 but I didn't know that adjusting it will allow the CPU to be more stable at less vcore.

I don't know much though, :~P

 

[cadaveca]

Would you recommend setting VRM Frequency manual to 340'ish Mhz for a 4.5 Ghz clock ?

Give it a try, see what happens. I mean, that's where the tweaking is with these chips on the ASUS boards...in the VRM, and in memory timings, although not alot can be had at the memory side of things.

You don't need super effective cooling, except when going over 5 GHz, so there still some 24/7 speed there for phase users, but everyone is going to run into the same walls.

 

[Jamborhgini313]

I have my new i5 2500k @ 5.2ghz @ 1.47v. It's stable in may games and tests such as IBT but not prime95. It always gives me BSOD no matter what volts i pump in so I'm not gonna worry about that if its stable in games. I need a new radiator soon cause the temps get warm like 80c

 

[LagunaX]

Yes it does 4.8ghz at 1.328v and okay will do that but give me a while I am priming 4.5ghz at 1.288v now. Most setting are on auto so give me a bit to figure out this evil empire equipment. This is a hell of a motherboard and Asus has out done themselves stability wise.

Yes Sandy + Asus = 4.8ghz @ 1.328

 

[cadaveca]

Good temps.

I have my new i5 2500k @ 5.2ghz @ 1.47v. It's stable in may games and tests such as IBT but not prime95. It always gives me BSOD no matter what volts i pump in so I'm not gonna worry about that if its stable in games. I need a new radiator soon cause the temps get warm like 80c

I'll take a guess and say VCCIO?

 

[trt740]

here is 4.5

Did you edit this from 4.5 to 4.8? My response on going lower than 1.328v was regarding 4.5ghz. If you can get stable at 4.8, then you've got yourself a really nice chip. Screenies please!!

and I think it will go lower but we will see

Here is another short run I just started

 

[trt740]

Okay here is the deal, these are so easy to overclock they lack fun. I gave up set it at 4.0ghz at really low voltage and I'm done. You say why 4.0ghz? Because it is freaking fast at even 4.0ghz and I see zero reason to go further even though I can. I'm not sure at all why Intel released chips like this with about 40 percent of their potential not even used. AMD better pull two rabbits out of the hat. Man bulldozer better be good.

 

[PaulieG]

Okay here is the deal, these are so easy to overclock they lack fun. I gave up set it at 4.0ghz at really low voltage and I'm done. You say why 4.0ghz? Because it is freaking fast at even 4.0ghz and I see zero reason to go further even though I can. I'm not sure at all why Intel released chips like this with about 40 percent of their potential not even used. AMD better pull two rabbits out of the hat. Man bulldozer better be good.

I set my 2600k at 4.0 for 24/7 crunching. It's just a real sweet spot for power, efficiency and temps. It's good knowing that I can go beyond 5.0ghz for benching when I want to.

With these chips, the fun is in the more obscure settings to get highest clocks with the lowest vcore. It's still fun, but different.

 

[trt740]

I set my 2600k at 4.0 for 24/7 crunching. It's just a real sweet spot for power, efficiency and temps. It's good knowing that I can go beyond 5.0ghz for benching when I want to.

With these chips, the fun is in the more obscure settings to get highest clocks with the lowest vcore.

I think my meg could cool this chip passively at this setting. The vid on my chip is .8250v and I wonder if that's right.