Intel 4.5GHz & 5GHz LinX Stable Club

[SimpleTECH]

Newer Linpack, 10.3.3.006.

Download

[crossg]

Newer Linpack, 10.3.3.006.

Download

Thanks. Working on my 990X stability, so might as well use the new linpack.

[owikh84]

owikh84| Core i7 2600K [4C 8T] @ 5.1002GHz | 1.536 | Asus Maximus IV Extreme | Water | L048A937

[crossg]

crossg | Core i7 990X [6C 6T] @ 4791.8MHz | 1.448 | ASUS Rampage III Formula | Air | 3045A752

Ran and passed then noticed ram was @ 2T command rate. Set to 1T and re-ran. No difference that I could see.

[st0ned]

st0ned | Core i7 2600K [4C 4T] @ 5100.2MHz | 1.416 | ASUS Maximus IV Extreme | Water | L042B076



Some more 5.1 low volts action

[l0ud_sil3nc3]

st0ned | Core i7 2600K [4C 4T] @ 5100.2MHz | 1.416 | ASUS Maximus IV Extreme | Water | L042B076



Some more 5.1 low volts action

nice oc and such low voltage

[coolhandluke41]

st0ned | Core i7 2600K [4C 4T] @ 5100.2MHz | 1.416 | ASUS Maximus IV Extreme | Water | L042B076



Some more 5.1 low volts action

so how you manage to increase you Gflops ?,I remember you wore below 130

[st0ned]

4c8t with linx runing in 4t it gives you lesser Gflops then 4c4t with linx using the whole 4t. For the same mHz Gflops will increase with mem mHz and timings.

[Sauron_Vie]

4c8t with linx runing in 4t it gives you lesser Gflops then 4c4t with linx using the whole 4t. For the same mHz Gflops will increase with mem mHz and timings.

your voltages would be more then interesting

[st0ned]

your voltages would be more then interesting

Bios Settings:

LCC : 75% ( 1.416v load 1.424 idle )
vCore: 1.425v
VccSA: 0.95 ( midle table value never got it to (des)improve my OC, it didnt got better or worst results changing this )
VccIO: 1.1125 ( this was the magic number for me, with 1.15v with 1.440v in bios it wouldnt be stable, with 1.1v, stable with 1.44v but it wasn't with 1.425, 1.1125v did the trick )
[Disclaimer: I also move the VRM freq: from 700Mhz to 450Mhz when I change the volts from 1.1 to 1.1125v so it could have been only one of the changes ]
CPU PLL - 1.65v ( it did changed my OC, but it has some kind of relationship with PLL overvoltage, with 5Ghz and PLL off ( my CPU does 50x with no PLL OV ) I've to have it around 1.75v for stability )

Dram was taking 1.65v for 2133 CL9 [ 8Gb kit ]

[Sauron_Vie]

thx mate for sharing.. great chip also will test ur settings with mine, but i think it is not as good as yours. i use the same vccio v, and cpu pll 1,675 for 4,8ghz.. maybe i can go a little bit lower with the other v. thx again.

[newhit]

4c8t with linx runing in 4t it gives you lesser Gflops then 4c4t with linx using the whole 4t. For the same mHz Gflops will increase with mem mHz and timings.

Great chip

I'm getting down to about 1.44 on mine for 5.1GHz on my P67A-UD7 (for my LinX runs). Just about to install a MIVE to see what improvements there may be.

Could you pls confirm that I'm understanding you correctly.................

It is better to turn HT off and then run 4c4t and 4t in LinX (for improved Gflops).

Thanx

[st0ned]

By Gflops ( I wont argue about what's harder to pass) but keep in mind that I 've found a relationship between Gflops and watts.

4C8T [8T linx] < 4C8T [4T linx] < 4C4T [4T linx]

[owikh84]

Newer Linpack, 10.3.3.006.

Download

For the 1st time 2600K HT ON running all 8 threads hits 100GFlops and kiss 100C in Win7 SP1.

[st0ned]

For the 1st time 2600K HT ON running all 8 threads hits 100GFlops and kiss 100C in Win7 SP1.

Indeed true, as I like to test everything by myself I went out for some tests.

Ambient temp were 21ºC. I had the AC on so ambient temp didn't change.

OPT1 = Temp from the last Rad [TPA120.3]
Water temp in the res ( It's after the CPU OUT ) = 23~24ºC

Cooling is made by a costum WC setup:

Feser Xchanger 360
TPA120.3
Swiftech 655

The rads are in a cake, like
[fans push][Xchange][fans2][TPA][fans pull]

push/pull by Enermax Magma(69CFM) , fans2 are the TFC midspeed (1800rpm ~88CFM).

Old Linx (==New Linx ) with no HT runing in 4T, voltage 1.408~1.416v

~141w


New Linx with HT , 8T, voltage 1.424~1.432v

~143w







Desclaimer: I had to bump the volts from 1.420v to 1.44v ( in bios ) in order to run HT on without freezes/BSOD. 1.420v freezed after few seconds, 1.435 BSOD after the 2nd run. Also keep in mind that I'vent yet been working in to optimizations for HT on voltages, so what did was just work the vCore out until I got it stable, more can be done to bring vCore to around 1.435 at least, I'm sure.

[skuldarin]

well i got 4.5+ghz to start being stable. been working on 4.65ghz with full mem and 2x uncore with a 980x. i can get it to pass everything upto 8gigs of mem out of 12 and it's averaging around 101-105gFlops.

i'll post 4.5 here in a bit, but i'd rather show 4.65 with 100+gFlops :P

[skuldarin]

alright, here's my offering.

Cooling - Water
CPU - 980x BATCH: 3013A540
Motherboard - Rampage III Extreme
4.509ghz cpu / 3733 uncore (155x29)
1.48125 vcore / 1.3625 VTT
1.709v DRAM / 1.815v PLL
6gb (4096 out of 4133 available) 1866 CL9 stock timings
hyperthread OFF

haven't been able to get 12 gigs to be stable yet still. i get through about 10 rounds and then it errors out. pretty sure it's wanting more VTT but i refuse to feed more than 1.41v to it.

don't mind the temps on GT. actual temps are between 83-84*c, GT's just reading off of bad internal sensors. i've checked a million times through bios, ROG and about a dozen thermal sensors i've swaped over the top of the cpu.

[crossg]

crossg | Core i7 980X [6C 6T] @ 4752.3MHz | 1.448 | ASUS Rampage III Formula | Air | 3045A708

Couldn't get 100.0000 Gflops but tried. Need water cooling to go any faster, maybe someday.

Much more fun to O/C these than the SB's.



Vantage bench P53829

[skuldarin]

try increasing your uncore there Crossg, that'll boost your gFlops. if you can get it upto 2x you should be nearing 110gFlops at that speed and your temps look decent enough to try it.

[TWK_OCZ]

Core i5 2500k @ 5157.1MHz | 1.535 v. | ASUS P8P67 PRO | Water (EK) | L041C119 / < Over 100 GFlops >

[CryptiK]

990X | 4505 MHz | 1.336v | 3550 MHz uncore | 1.244 Vtt | DDR3-1638 MHz | 7-7-7-20 1T | 1.60 vdimm


*SS shows 1.343v, but was at 1.336v 90% of the time, didn't notice till I was uploading pics.


Running 21st loop




Finished 25th loop

[radaja]

CryptiK,looks like you have another nice cpu
very nice vcore on that run.

[CryptiK]

Thanks mate, yeah seems like I got lucky. Had to look through a lot of results on the web with unconfirmed stability, just 'high MHz CPUZ only' shots and vantage runs and get a batch list together. Had 3 batches locally to choose from and went for what I thought would be the best one.

[Kimofil]

Thanks mate, yeah seems like I got lucky. Had to look through a lot of results on the web with unconfirmed stability, just 'high MHz CPUZ only' shots and vantage runs and get a batch list together. Had 3 batches locally to choose from and went for what I thought would be the best one.

Very nice CPU! It looks like you can run it LinX stable at 4.8Ghz at least with Vcore less than 1.4!

[kpablo]

Newer Linpack, 10.3.3.006.

Download

Damn... with this linpack... an overclock that was 8 hours stable in Prime95 (Blend Mode) just bsod in less than 1 minutes...