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Guys, what do you think about costa rica 4770k chips? its not that much on the list, did someone find any good?

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  • Just for integritiy L311B515 4770k

  • Batch L310B487 seems very good...5.1 GHZ PI 1MB benchable at 1.284V 4C/8T air cooled...

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    Officially I surrender. My good looking Haswell died during testing CB on low volts (1.5v), going from -80*C to -105*C. I got BSOD and that's all.   It was QEH6 ES reviewer sample. 1.275v 4/8 @ 5 G

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4790k batch L436C545

 

Needs 1.28vc 1.82input for 5ghz boot to Xp 4c/8t

8m stable same volts 4c/8t

any info about i7 4770k batch L348B519?

Bought 2 pcs recently both sucked, L348B5xx something. One did not do pi 1m at 5 GHz at all, other one 1.5 v+. Air cooling 2c/2t.

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4670K batchL310B515 Impact 7 bad air cooler slightly above boxed level, delidded by mad german prime-god smilie_happy_011.gif

win 7x64

4,8ghz core 1,25v 4,8ghz cache 1,26v Cinebnech 11,5 and 15

XP 32

5ghz wprime32m 1,24v, Spi32m w. 2800c9 samsung 1,25v

IMC runs psc 2666 tight and boots 2750 8-12-8 at least

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Cache is OK, I will make further tests with ruling XT Loki cooler but my Impact is weird, I need more cache voltage for all cpus than on Asrock and Gigabyte, will be hard to get 5ghz stable for 32m

 

Well, at least with low mem settings and mucho volts I could make it work - 1,325v set in bios, hwinfo shows 1,35 and Bios readout is 1,36 :eek:

5-51325cachebiosdyuqi.jpg

Edited by websmile

dat CB though!

 

yes that was gooood.

once i saw 6.5 but the valid gone.

didn't bother to push more I need a better chip ..

Depends on the cpu, OS and scaling - my 4690k can do 4,5ghz both cinebenches and xtu 1,09v win7x64 and needs 1,29v for spi32m 5ghz XP

 

Only tested lowest volts on wprime in xp, will try w7 next and see where it ends up.

How does 1.07v 4.5/4.5 1024M @ air sound?

It depends if it's an Haswell or a DC. If haswell then very good. If DC then good but poor chance of scaling on cold.

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