Asrock P67 Extreme4 UEFI & Drivers thread [Extreme6 & Pro3 owners welcome]

[beast200]

Hi

not too bad for first try

[Ket]

That is awesome What batch is it?

[radier]

Hi

not too bad for first try

You have low GFlops as for 5GHz+. I have 62GFlops+ with 4,5GHz.


Maybe yours CPU is throttling during the test. How did you set Short and Long Turbo Power limits as well as Core Current Limit?


BR,

[beast200]

Hi

you are correct
I have now set at 150 each
Ket can you advise setting for ram as i have the samebut get BSOD but v @ 1.56
is 1.6 safe with setup
cheers

[Ket]

Up to 1.65v will be safe. You should be able to get at least 1866MHz out of the kit, but it depends what ICs your kit is using I may of just lucked out with my kit being able to do 2133MHz+. If you need a little more detail about voltages Clicky

ED - Oh, and about power draw. I'm not entirely certain if the mainboard just draws X wattage specified regardless of if the CPU actually needs to draw that amount of power, but I deffinately wouldn't set long/short power limits and current limit higher than is necessary. 250/250/250 should be plenty for 5GHz @ 1.45v. You could likely even use 200/200/200 without any problems.

[beast200]

Hi thats a bit better

[ClockZ]

Up to 1.65v will be safe. You should be able to get at least 1866MHz out of the kit, but it depends what ICs your kit is using I may of just lucked out with my kit being able to do 2133MHz+. If you need a little more detail about voltages Clicky

ED - Oh, and about power draw. I'm not entirely certain if the mainboard just draws X wattage specified regardless of if the CPU actually needs to draw that amount of power, but I deffinately wouldn't set long/short power limits and current limit higher than is necessary. 250/250/250 should be plenty for 5GHz @ 1.45v. You could likely even use 200/200/200 without any problems.

I don't really understand the workings of the current limit settings to be honest but mine will run a stable 5ghz with 150/150/150 at 1.4V loaded. Can anyone describe what these long/short and current settings really do?

[radier]

These are Turbo Power limits. Overclocking Sandy Bridge is about overclocking those Turbo states. It means how far you can go with Turbo on all 4 cores. So if you put higher limits, the less likely that it will try to throttle down. Very high limmits doesn't mean that CPU or mobo will consume more energy.

[Ket]

I don't really understand the workings of the current limit settings to be honest but mine will run a stable 5ghz with 150/150/150 at 1.4V loaded. Can anyone describe what these long/short and current settings really do?

Basically, if you don't set long/short power draw high enough the CPU will throttle itself under load. The current setting specifies the maximum current the AI core has going through it at any given time. So far, my testing hasn't revealed it actually helps when OCing but my results aren't conclusive yet.

[Ket]

Out of curiosity can somebody run IBT and let me know how hot your cores get? My 2500k seems to be a bit weird, cores 0&3 top out around 73c, but cores 1&2 top out around 83c. I looked at the IHS before I put the CPU in and it looked pretty flat so I'm just wondering if a 10c delta is common. Both Core Temp and Real Temp report the exact same. HSF is a lapped Hyper 212 Plus. I'm 99% certain the issue isn't with the HSF because I used one on a Phenom2 955BE that had more volts pumped through it than this 2500k and temps topped out at about 60c.

[dnottis]

Out of curiosity can somebody run IBT and let me know how hot your cores get? My 2500k seems to be a bit weird, cores 0&3 top out around 73c, but cores 1&2 top out around 83c. I looked at the IHS before I put the CPU in and it looked pretty flat so I'm just wondering if a 10c delta is common. Both Core Temp and Real Temp report the exact same. HSF is a lapped Hyper 212 Plus. I'm 99% certain the issue isn't with the HSF because I used one on a Phenom2 955BE that had more volts pumped through it than this 2500k and temps topped out at about 60c.

61, 66, 68, 67 - are what mine run at in IBT using AVX.

[beast200]

Hi


Mine are 61 69 70 66

[Ket]

Damn. Looks like I'm going to have to lap the IHS. Compared to you guys it does very much seem like the IHS on my 2500k is pretty concave, which just sucks. Maybe I'll take the lazy mans route and buy a H50 instead and use one of my sickleflow fans with it.

////////For my reference, don't mind me/////////

4.6GHz - 1.35v actual [UEFI 1.36v]
4.8GHz - 1.38v actual [UEFI 1.405v]
5GHz - 1.4v actual [UEFI 1.425v], 1.43v [UEFI 1.45v], 1.45v [UEFI 1.48v] ALL FAIL

///////End////////////////////////////////////////

Based on those results it seems like 5GHz fails not because of a lack of voltage, but the concave IHS makes cores 1&2 overheat. With a flat IHS 4.6GHz stable is probably achieveable with ~1.32v actual. Thanks guys, your results are what made my numbers make sence

[dnottis]

Damn. Looks like I'm going to have to lap the IHS. Compared to you guys it does very much seem like the IHS on my 2500k is pretty concave, which just sucks. Maybe I'll take the lazy mans route and buy a H50 instead and use one of my sickleflow fans with it.

////////For my reference, don't mind me/////////

4.6GHz - 1.35v actual [UEFI 1.36v]
4.8GHz - 1.38v actual [UEFI 1.405v]
5GHz - 1.4v actual [UEFI 1.425v], 1.43v [UEFI 1.45v], 1.45v [UEFI 1.48v] ALL FAIL

///////End////////////////////////////////////////

Based on those results it seems like 5GHz fails not because of a lack of voltage, but the concave IHS makes cores 1&2 overheat. With a flat IHS 4.6GHz stable is probably achieveable with ~1.32v actual. Thanks guys, your results are what made my numbers make sence

I've lapped every chip I've had the last few years. I haven't done this one yet. The contact looks good but the temps indicate mines not flat either. With 8 deg between cores I think mine is in need of a good lapping too.

[ClockZ]

No matter what im running mine seem's to have a 4to5c delta between all cores with a EK supreme hf. Much better than my i5 750 was.

[Martin.v.r]

watercooling,got a bad bord no dual mem run 2x slots is dead
here whit single mem. beta bios 1.33a
I7 2600K 5.120GHZ ATI 6870 1100/1250

[Martin.v.r]

more

[dnottis]

so what is the max safe vcore without killing these things? 1.45v? 1.50v?

[Martin.v.r]

hmm ?
whit watercooling idel temp 29/32c
load team 50/54c
wprime 1024m
I7 2600K 1.535v 5.120GHZ

[dnottis]

hmm ? whit watercooling
idel temp 29/32c
load team 50/54c
wprime 1024m
I7 2600K 1.535v

yea but at some point voltage is killer regardless of temps. Intel says max 1.52v. Is there any reason we should be worried about 1.4, 1.45, 1.50?? degradation? anyone have problems or kill one yet?

[ClockZ]

Hard to say at this point, I myself am keeping mine 1.35ish. for 24/7 4.7/4.8 ghz is plenty. I'll let the hardcore guys test the water with high voltages for long periods and then i'll maybe turn it up some.

[EniGmA1987]

Max 24/7 use is supposed to be 1.4v from what most users say. I think I saw in another thread here that someone pointed out that Intel isnt talking about the actual vcore being 1.52 max usable on these processors but it is just a number in their table as they have done with other processors that goes well above what is the actual maximum

[Ket]

I've lapped every chip I've had the last few years. I haven't done this one yet. The contact looks good but the temps indicate mines not flat either. With 8 deg between cores I think mine is in need of a good lapping too.

It would seem so. After watching temps for a few mins I found that the "worst" core on my 2500k is 12c hotter than the coolest core. Thats just crap manufacturing on intels part. I mean seriously... £180 and intel can't even put a even metal plate on the core?

so what is the max safe vcore without killing these things? 1.45v? 1.50v?

Somebody hasn't read Page 4, have they I've heard about plenty 2600/2500k CPUs dying with 1.55-1.6v. For 24/7 use I would not go higher than 1.45v. Its common scence, 45nm CPUs intel said absolute safe max voltage is 1.45v but of course that envelope was pushed a bit - 1.475-1.5v, 32nm makes sence absolute safe max 24/7 voltage would be around 1.42v, but again pushing the envelope a bit around 1.46v shouldn't do any harm, assuming you are using a good cooler.

[dnottis]

Somebody hasn't read Page 4, have they I've heard about plenty 2600/2500k CPUs dying with 1.55-1.6v. For 24/7 use I would not go higher than 1.45v. Its common scence, 45nm CPUs intel said absolute safe max voltage is 1.45v but of course that envelope was pushed a bit - 1.475-1.5v, 32nm makes sence absolute safe max 24/7 voltage would be around 1.42v, but again pushing the envelope a bit around 1.46v shouldn't do any harm, assuming you are using a good cooler.

Well I've read it... but then I see all the screenies here of 1.6v lol.

Yea I dropped back from 5.0 @ 1.44 to 4.8 @ 1.35 just makes sense, I dont want to kill it.

[Ket]

Yeah it amazes me that so many people actually think 1.5-1.6v is safe to run through their 2500/2600k CPU 32nm is at the point now of being extremely delicate. 1.45v is a absolute max safe voltage beyond that you are going to start hurting these little CPUs Then when people do hurt their CPUs with 1.5-1.6v they cry foul, don't accept their own stupidity and want to RMA 22nm will be the same story, people will pile 1.5v+ through the poor little things and whine when the CPU blows. 22nm you can easily expect max safe voltage to be 1.38-1.4v. The question to be answered when a die shrink that small does come is can intel make those CPUs at least clock as far as the current 32nm CPUs? If not, the current CPUs will likely still be the better choice for OCing.

FYI folks, its already well noted that even water isn't needed to see the maximum of of these new CPUs, a quality air cooler with a lapped IHS will be able to get the same results. Gone are the days of high voltage and extreme cooling with these chips. There is a technical explanation for this, I forget the details but I shall divulge what I do remember, (and this has always been true of all CPUs) below a certain temperature you actually start to hurt the CPU die because the electrons can't flow as well and start to break down.

Oh, and dnottis, I'd try setting a 1866MHz divider for your memory, I'd be extremely surprised if your kit can't handle it these Asrock boards absolutely love G.Skill kits