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Posted

Tested another six CPUs. They were all crappy ))

4770K	L314B511 1964	4500 MHz 1,21V SuperPi 32M	4900 didn't boot 1,35V
4770K	L314B511 2101	5000MHz 1.38V SuperPi 32m passed 2c/2t	4500 1.249V LinX
4770K	L314B511 1788	4500 MHz 1,17V SuperPi 32M	4900 didn't boot 1,35V
4770K	L314B511 1491	4500 MHz 1,17V SuperPi 32M	4900 didn't boot 1,35V
4770K	L314B511 3223	4500 MHz 1,19V SuperPi 32M	4900 didn't boot 1,35V
4670K	L310B440 2491 Malay	4500 SuperPi 32m 1.2V	4900 didn't boot 1,35V

So at this moment I've tested 22 CPUs and just one could boot WinXP at 5000MHz on water

Posted
Tested another six CPUs. They were all crappy ))

4770K	L314B511 1964	4500 MHz 1,21V SuperPi 32M	4900 didn't boot 1,35V
4770K	L314B511 2101	5000MHz 1.38V SuperPi 32m passed 2c/2t	4500 1.249V LinX
4770K	L314B511 1788	4500 MHz 1,17V SuperPi 32M	4900 didn't boot 1,35V
4770K	L314B511 1491	4500 MHz 1,17V SuperPi 32M	4900 didn't boot 1,35V
4770K	L314B511 3223	4500 MHz 1,19V SuperPi 32M	4900 didn't boot 1,35V
4670K	L310B440 2491 Malay	4500 SuperPi 32m 1.2V	4900 didn't boot 1,35V

So at this moment I've tested 22 CPUs and just one could boot WinXP at 5000MHz on water

 

When you say boot at 5 GHz, do you mean 4c/8t? I thinks it's quite a lot easier to boot 2c/2t like most of us bin cpus.

Posted
When you say boot at 5 GHz, do you mean 4c/8t? I thinks it's quite a lot easier to boot 2c/2t like most of us bin cpus.

 

Off course not. I meant 2c/2t. It's default for binning CPU

Posted
I always bin 4C/8T tho. If you're posting here just write in detail how you tested :)

 

I gave as much details as never )))

Usually I define minimal requirements for CPU which I try to find. For 3770K they were: 5000MHz and 1.3V boot windows (doesn't matter how many cores and threads I used), if cpu couldn't do this I rejected it. Now I add 4500MHz test and LinX test for best of the crap )) But all CPUs will be rejected if they won't be able to boot Windows at 5000MHz and 1.3V. So if I wrote something like that : " I tested 22 CPU's and no one of them didn't but at 5000MHz" it would be better(didn't post batch, Vcore for 4500MHz and etc)?

Posted
MoJOr that is tough luck !

Remind me of my quest for a good SB, 5.65Ghz was max on my +20 chips.

I wish you better luck on your next chips :-)

 

I tested about 70-80 Sandy and no one couldn't run 5700 MHz

But after that, when milestone of SB was ending I bought 2500K from user in my city which could 5900+ MHz. That man just bought one SB and had big luck ))

Posted
Tested another six CPUs. They were all crappy ))

4770K	L314B511 1964	4500 MHz 1,21V SuperPi 32M	4900 didn't boot 1,35V
4770K	L314B511 2101	5000MHz 1.38V SuperPi 32m passed 2c/2t	4500 1.249V LinX
4770K	L314B511 1788	4500 MHz 1,17V SuperPi 32M	4900 didn't boot 1,35V
4770K	L314B511 1491	4500 MHz 1,17V SuperPi 32M	4900 didn't boot 1,35V
4770K	L314B511 3223	4500 MHz 1,19V SuperPi 32M	4900 didn't boot 1,35V
4670K	L310B440 2491 Malay	4500 SuperPi 32m 1.2V	4900 didn't boot 1,35V

So at this moment I've tested 22 CPUs and just one could boot WinXP at 5000MHz on water

 

That's certainly a bummer. My first 4770k (in heaven it rests lol, gotta find batch # sry). That needed 1.4v to just boot @4.5-4.6ghz. Then my 2nd one in my main PC would do 5ghz stable (Prime, PI & 3D stuff) needed the same 1.4v. Hopefully this new one of mine will do 5ghz at lower volts and hopefully get a little higher the 5ghz. Admittedly this won't be blasted with Sub Z stuff (for now).

 

Hopefully my little bits of info might help the laymen like myself lol.

Posted

3 new 4670k here. L312B549

L312B549 #1 1.2+ volt for 4500 MHz Spi32M, no 5 GHz
L312B549 #2 1.175 volt for 4500 MHz Spi32M, no 5 GHz
L312B549 #3 1.11 volt for 4500 MHz Spi32M, 1.42 for 5 GHz.

 

Was expecting more from the third, 1.11 v @ 4,5 GHz is the best one for me so far but it hits a voltage wall at around 4,9.

Posted

yeah,the haswell wall is something interesting,i had some chips that could do 4500 with low-voltage but would not hit 5 ghz for enterin os even with 1.55....perfect chip would be a chip that has low cb,high-leakage and no freq wall....

Posted

i do believe so,but you need to test it on cold.my best 4670K\s do wprime at 1.12 and 1.14 4.5 but they do 5 ghz @1.26 and 1.31,so this means a much nicer volt/mhz curve.Ofc cold could change some things....

Posted

Will do guys, today :) also this 4770k which was actually 1.435 vcore 5 GHz. Not as good as the 4670k at 4,5 Ghz though.

New one here, L316B316 around 1.475 for 32m at 5 GHz, can do 4800 uncore with 1.39 vring. Will try on singlestage.

  • Crew
Posted

for those who wondered,

 

my 2 x 3314B costa rica's were terrible on air. I'll test another one soon, if i can find a decent 5ghz cpu i will test ln2 and see if it scales

Posted
It can validate 6.6 4c8t but not run 1m at 6.2 haha

 

lol. Did you try to change motherboard? And did anybody try to remove HS and change thermal grease? Will it help with LN2? I remember that many people tried to do it on Ivy and just der8auer had profit from this operation. But now for overclocking on air it helps very much.

Posted (edited)

2x L315B

2x 3306B

 

 

hmmmm

 

EDIT:

 

2x3306B cannot boot passed x48 1.38v

2xL315B Both are good

 

here is better one, 1m runs here as well on umounted air cooler...had to keep sliding it back up lol

mjDNVIN.jpg

Edited by Splave
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