8 Packs 4ghz 32m Challenge win full Haswell 4770K Bundle.

[fudoken]

@Kei i finally caught up with you 17min 20.943s i might try and get down another 5 seconds but i don't think thats going to happen

 

[Kei]

G.skill ram says it all. I had to sacrifice 8GB of my ram and dual channel to improve by 4 seconds. I've still got some thoughts to test out yet. I really want to break 16mins, but i think my ram is going to hinder my chances.

If you google "Super PI 32M 4ghz efficiency", you'll find it's been done before and you can find similar hardware and try to get similar results.

 

[Duff-Man]

I've got my Corsair XMS3 1600 kit running at 2000mhz 10-10-10-22 1T without any errors, seems about as far as they will go even 1 more mhz and the pc wont even post lol

Sound like you've found the limit of your CPUs memory controller. Mine was similar - 1900Mhz was stable enough to run pi at 8-8-8-21, but 1910Mhz wouldn't load Windows, even at CAS11.

Was also an XMS 3 kit as well actually... try tightening up the timings at 2000Mhz.

 

[Phantom Shadow]

Couldn't get my XMS3 1600 kit running even at 1800mhz

Managed around 9m30s on a core i5 750

 

[Kaapstad]

This is not a serious entry but it does have curiosity value

X58 memory @2300mhz.

Spoiler

 

[8 Pack]

Back in the UK today. I will have another go at this tomorrow and post up a leaderboard on whats been done so far.

Great effort guys.

 

[Duff-Man]

Having a quick look at another thread with this same idea - the Ivy Bridge scores got down as low as 07:43

Fastest Sandy Bridge score was 08:08.

 

[GoogalyMoogaly]

Still looks like 8 Pack is winning this one. Should soon have himself a nice little Haswell bundle

 

[ed79]

Very interesting all this. I tried a run on my everyday setup of i5-3570k 3.9GHZ (1.09v) and Samsung green 10-10-10-21 1866MHz. Got about 8 min 30 super pi.

If I wanted to improve should I focus on increasing RAM speed or reducing the timings?

 

[wazza300]

2133mhz is the sweetspot,1.55v dram

 

[ed79]

Thanks - would I have to slacken my current timings for 2133MHz?

 

[wazza300]

don't know,maybe try 10-11-11-21-1t and see what happens then try with your original timings

 

[Tonester0011]

Updated Leaderboard, i've probably made some mistakes, 8Pack will check himself anyway was just posting for anyone that's curious where they currently stand.


1.PCZ : 7m 53.141 - i7 3770k "Team Group" 2623.8Mhz 10-12-12-18 1T

2.Raikiri : 7m 57.285s - i5 2500k "Kingston" 1909Mhz 10-11-11-32 1T

3.1Deep : 7m 58.865s - i5 3570k "???" 2624Mhz 11-13-12-29 1T

4.Sir SpankalotUK : 7m 59.687s - i5 3570k "Samsung" 2284Mhz 10-12-11-25 1T

5.wazza300: 8m 00.689s - i7 3770k "Samsung" 2209Mhz 9-10-10-19 1T

6.vonex : 8m 01.459s - i7 3770k "???" 2209.8Mhz 9-10-10-19 1T

7.Kaktus69 : 8m 05.598s

9.arknor : 8m 09.729s - i5 4670k "Kingston" 1596.4Mhz 9-9-9-27-208 1T

10.horrorwood : 8m 09.877s - i7 3770k "???" 2401Mhz 11-12-11-30 1T

11.settler : 8m 09.997s - i5 3570k "???" 2133Mhz 9-10-10-21 1T

12.Mik3 : 8m 13.959s - i5 3570k "OCZ" 1907Mhz 10-10-10-30 2T

13.Kaapstad: 8m 16.923s - i7 3930k "Corsair" 2484.2Mhz 9-11-11-25-96 1T

14.MonsterMoshi : 8m 18.681s - i7 3770k

15.pgi947 : 8m 18.842s - i7 3820 "G.Skill" 2416.8Mhz 10-12-12-21-88 1T

16.whyscotty: 8m 20.940s - i7 3930k "Corsair" 2486.4Mhz 10-11-11-25-96 1T

17.Tonester0011 : 8m 21.785s - i7 3930k - "TeamGroup" 2356.8Mhz 9-11-11-25-96 1T

18.wazza300 : 8m 15.332s - i7 2600k - "Samsung" 2210Mhz 9-10-10-19 1T

19.Subliminal Aura : 8m 23.580s - i7 2600 "???" 1412.8Mhz 9-9-9-24 1T

20.Rossi~ : 8m 24.106s - i7 3930k - "Samsung" 2152Mhz 9-10-10-21-88 1T

21.PureJaz : 8m 26.908s - i7 2600k - "???"

22.Mrnob : 8m 34.000s - i7 3820

23.Tekgun : 8m 34.926s - i7 2600k "G.Skill" 1617.6Mhz 8-8-8-24 1T

24.Skeng : 8m 35.084s - i5 2500k "???" "????Mhz 11-11-11-36 2T

25.dlknight : 8m 42.239s - i5 2500k "Samsung" 2133MHz 10-11-11-26

26.Hicks : 8m 46.158s - i7 3770k "Avexir" 1601.4Mhz 9-9-9-24 2T

27.Something Else : 8m 57.499s - i5 2500k

28.Duff-Man : 9m 03.910s - i7 930 "Corsair" 1830Mhz 8-8-8-21 2T

29.Kaapstad : 9m 07.889s - i7 something "Corsair" 2013.8Mhz 7-8-7-20-88 1T

30.Mick-1965 : 9m 12.911s - i5 760 "Cruicial" 2240Mhz 9-9-9-27-181 1T

31.Hotwired : 9m 14.129s - i5 750 "???" 1701Mhz 6-7-6-18-94 1T

32.shadow Boxer : 9m 14.414s - i7 920 "OCZ" 1601Mhz 8-8-8-24-59 1T

33.Nightst@lk3r : 9m 24.471s - i5 760 "Corsair" 2000Mhz 10-10-10-21-74 1T

34.the1gooner : 9m 25.583s - i5 760 "???" 2020Mhz 10-12-12-31-162 1T

35.Gzero : 9m 30.481s - i5 750 "Kingston" 1603.4Mhz 9-9-9-24-208 1T

36.bru : 9m 38.733s - i7 920 "???" 1528Mhz 8-9-9-28-124 2T

37.Kei : 17m 20.985s - x4 955 "Kingston" 1680Mhz 9-9-9-20-22 1T

38.dfour : 23m 51.868s - FX-8350 "???" 1672Mhz 9-10-10-24-33

39.evohicks : 24m 09.666s - FX-8350

 

[PCZ]

Thanks for updating the Leader board
The RAM speed is incorrect for my submission, see below
Correct speed in RED.

PCZ : 7m 53.141 - i7 3770k "Team Group" 2623.8Mhz 10-12-12-18 1T

 

[wazza300]

lookslike im gonna have to pull out my secret weapon

 

[PCZ]

What's than then win 3.1

Or perhaps LN2 cooled PSC

 

[wazza300]

Nah was just kidding,if I knew 100% I'd win I'd buy a cheap board CPU and sell it after but cba

 

[8 Pack]

LN2 Cooled BBSE, PSC or Hynix these days are the ones in with a shout. I used Hynix for the 32m World Record last week.

I have some new BBSE to try that I got from GSKILL as well as some more GSKILL Hynix. Am gonna try again tomorrow for sure.

 

[PCZ]

How do we found out which memory has good IC's ?
I don't want to pay out for more Samsung or some single sided rubbish.

 

[Kei]

Nice list of DDR3 IC's here. Just my luck that my kingston modules probably use elpida BFSE which aren't known for being much cop. (although that thread suggests 7-8-7 @ 800mhz should be possible, i can't get them to budge from 9-9-9) I've got no idea about my old corsair dominators, can't seem to find anything about them anywhere. (CM3X2G1600C9DHX)