Core i7/X58 Overclocking Thread

[Pwnzorz]

the cpu came with a system i purchased prebuilt from Gateway, therefor its a C0/C1

[donmarkoni]

Hey I recently purchased a Evga X58 e760 Classified motherboard and have a 920 C0/C1, and 12 gigs of Patriot Viper 1333Ram, i know OCing is Crap Shoot, but does anyone have any standard overclock i can try and maybe tweak from there, i'd be happy with anywhere from 3.8 to 4.0gz
The cooler i'm going to be using is a Corsair H50 watercooling kit.
Any help is appreciated! Thanks.

I have C0, so maybe you could use some of my settings, just find parallel between DFI and EVGA settings.
Try this (4.4GHz): http://i4memory.com/f80/share-your-d...tml#post119541
or this (4-4.2GHz): http://i4memory.com/f80/cxe-stabilit...66/#post119232
Never mind my statement at the end of the 2nd post, I found I was wrong: http://i4memory.com/f80/cxe-stabilit...tml#post119398

[usoldier]

Can anyone give me a hand helping me get 4.0 stable please.
My cpu is a i7 920 D0 , i have it rock stable at the folowing settings , if i try 20x200 i can only get it stable at 1.294v witch doesnt sound right so mutch more volts for a 200mhz jump . Iam watercooled and temps are ok

My Stable Settings for 3.8

Advanced Cpu Settings

Cpu ratio Setting ...................[19]
C1E Support .........................[Enable]
Hardware Prefetcher ..............[Enable]
Adjacent Catch Line Prefetch ...[Enable]
Intel Virtualization ..................[Enable]
Cpu TM Function ....................[Enable]
Execute Disable Bit ................[Enable]
Intel HT Tecnology .................[Enable]
Active Processor Cores ...........[All]
A20M .....................................[Disable]
Intel SpeedStep Tech ..............[Disable]
Intel C-State Tech ..................[Disable]


Ai Overclock Tuner ................. [Manual]
CPU Ratio Setting .................. [19]
Intel Speedstep Tech .............. [Disable]
BCLK Frequency ...................... [200]
PCIE Frequency ..................... [100]
DRAM Frequency ..................... [1600mhz]
UCLK Frequency ..................... [Auto]
QPI Link Data Rate ................. [Auto]


DRAM Timing Control: Auto
____________________________________

CPU Voltage ........................ [1.20v]
CPU PLL Voltage .................... [1.82]
QPI/Dram Core Voltage .............. [1.25]
IOH Voltage ........................ [1.10]
IOH PCIE Voltage ................... [1.50]
ICH Voltage ........................ [1.10]
ICH PCIE Voltage ................... [1.50]
Dram Bus Voltage ................... [1.60]
____________________________________

Load-Line Calibration .............. [Enable]
CPU Differential Amplitude ......... [Auto]
CPU Clock Skew ..................... [Auto]
CPU Spread Spectrum ................ [Disable]
IOH Clock Skew ...................... [Auto]
PCIE Spread Spectrum ............... [Disable]

Thanks in advance .

Also posted this on P6T Deluxe thread but no luck with replys

[CryptiK]

Maybe your CPU needs that much vcore? If it does, there's no solution for that. If you want to reduce your vcore a little use the 21x or 19x multi's - i7's hate even multi's.

[donmarkoni]

Can anyone give me a hand helping me get 4.0 stable please.
My cpu is a i7 920 D0 , i have it rock stable at the folowing settings , if i try 20x200 i can only get it stable at 1.294v witch doesnt sound right so mutch more volts for a 200mhz jump . Iam watercooled and temps are ok

What is the problem with 1.294V for vCore? It is low voltage for i7.

Maybe your CPU needs that much vcore? If it does, there's no solution for that. If you want to reduce your vcore a little use the 21x or 19x multi's - i7's hate even multi's.

IMHO, it's a myth that i7's hate even multi's. My rig was perfectly stable @ 200x20, until I upgraded my WC setup and went for 200x21.

[CryptiK]

Oh I don't mean they are unstable on even multi's. I only meant that for example to use the 20x multi it takes more vcore than the 21x multi or the 19x multi for the same clock.

[usoldier]

What is the problem with 1.294V for vCore? It is low voltage for i7.



IMHO, it's a myth that i7's hate even multi's. My rig was perfectly stable @ 200x20, until I upgraded my WC setup and went for 200x21.

Hey , Iam currently testing out new stuff i learned while reading this thread and the P6T Deluxe Thread

Atm running linx 20 loops using All Setting with new changes .

Changed: Vcore from 1.294v to 1.274
Changed: from 20x200 to 21x191
Changed : CPU/IOH Clock Skew settings = Delay 100ps

Atm on 11º loop hope it works :>

Maybe the myth from multi is not so myth afther all tho the change in vcore is quite small to justify it i gess .

EDIT : Why do i get More Gflops on Linx with this new settings then with simply having Vcore higher, shoudnt it go down a litle now that my mem is also not on 1600 but at 1527 ?

Old Settings : 51.6551
New Settings : 53.8365

???

[CryptiK]

I have found clock skew settings can influence GFLOPs. When pc's are dialed in perfectly they deliver max GFLOPs. Raise or lower skew from that 'perfect' point and GFLOPs will decrease. That's my findings anyway and could explain your result.

[momoto]

I have found clock skew settings can influence GFLOPs. When pc's are dialed in perfectly they deliver max GFLOPs. Raise or lower skew from that 'perfect' point and GFLOPs will decrease. That's my findings anyway and could explain your result.

CryptiK , Does GFlops synchronize with Vcore? 　　
Does Time synchronize, too?

Vcore 1.11875V (BIOS) GFlops 50


Vcore 1.11250V (BIOS) GFlops 48


　　　

[zalbard]

Have you checked if you have throttling?

[CryptiK]

CryptiK , Does GFlops synchronize with Vcore? 　　
Does Time synchronize, too?

Vcore 1.11875V (BIOS) GFlops 50
http://happy.ap.teacup.com/yomoyama/img/1258034597.jpg

Vcore 1.11250V (BIOS) GFlops 48
http://happy.ap.teacup.com/yomoyama/img/1258034667.jpg

I have noticed that when the CPU is on the edge of stability, GFlops can be a little lower than when given a little more voltage for it to be 'comfortable'.

Not sure what you mean about time synchronizing? Time changes with GFlops - the higher the GFLOPs the lower the time.

Very nice cpu you have got there. Can it do that using a 64bit OS and 4096MB+ Linx?

[cstkl1]

I have noticed that when the CPU is on the edge of stability, GFlops can be a little lower than when given a little more voltage for it to be 'comfortable'.

Bro the indigo extreme powah
4.3ghz HT on load temp down by 6C
4.4ghz HT on load temp down by 7C.

[CryptiK]

Bro the indigo extreme powah
4.3ghz HT on load temp down by 6C
4.4ghz HT on load temp down by 7C.

http://i287.photobucket.com/albums/l...Untitled-2.png

I was wondering how that was going to turn out. Very nice.

[Daddyjaxx]

This is as low as I could go for 4.0 with 25 passes of Linx and 8 hours of prime. I could probably drop the CPU PLL.

[Chicken Patty]

very good daddyjaxx. Thats mighty good vcore for 4Ghz. Temps seem great too!

[emertX]

My new combo!

[momoto]

Very nice cpu you have got there. Can it do that using a 64bit OS and 4096MB+ Linx?

NB3627.4MHz 7-7-7-21-60-1T


NB3627.3MHz 4-7-7-21-60-1T 11 Error


The bug of BIOS occurred. It has changed into 4 though CAS # was set to 7.

GFlops : to 52.

[Salamndar]

Damn, Guys I envy you, with my D0 I need 1.44v to reach 4.44GHz !!!

That makes temp of the CPU reach 79c with a room temp of 23c !

[emertX]

My next try will be 4.6GHz under 1,39V!
Hopefully the Board will do this!

[Chicken Patty]

emert very nice CPU bro.

[Sam_oslo]

My new combo!

1.24v for 4.41GHZ is really good. Batch# ?

[emertX]

Thanks guys

It's the old known one: 3845A935

I bought the first one in Germany at that time. But now I had the time to test it right!

Mem: 2000 Uncore: 4000

[CryptiK]

My new combo!

Looking really good, how's it go with a more CPU intensive test like small FFT's or Linx max mem?

NB3627.4MHz 7-7-7-21-60-1T
http://happy.ap.teacup.com/yomoyama/img/1258361030.jpg

NB3627.3MHz 4-7-7-21-60-1T 11 Error
http://happy.ap.teacup.com/yomoyama/img/1258361085.jpg

The bug of BIOS occurred. It has changed into 4 though CAS # was set to 7.

GFlops : to 52.

Very nice indeed, about the best vcore I've seen for 4 GHz, what's load vcore? Cooling? Funny bug with CAS 4, I'm surprised it ran at all heh.

Here's what I've managed so far on air on Windows 7 64, could perhaps drop vcore another notch or two if I was on water.

Load - 4 GHz @ 1.112v / 1.21Vtt



Finished

[Daddyjaxx]

Damn, Guys I envy you, with my D0 I need 1.44v to reach 4.44GHz !!!

That makes temp of the CPU reach 79c with a room temp of 23c !

That seems about normal. Mine needs just a tad less.

[emertX]

Looking really good, how's it go with a more CPU intensive test like small FFT's or Linx max mem?



Very nice indeed, about the best I've seen, what's load vcore? Funny bug with CAS 4, I'm surprised it ran at all heh.

Here's what I've managed so far on air on Windows 7 64, could perhaps drop vcore another notch or two if I was on water.

Load - 4 GHz @ 1.112v / 1.21Vtt

What Do you mean?
The test ran 1,5 hours.
Every range 15 Minutes: 1024K, 8K, 10K, 896K, 768K, 12K, 14K, 640K