Sandy Bridge OC Thread V1

This is Intel LGA1155 aka Sandy Bridge (SB) overclocking thread.
Please share your benchmark, stability, guides etc...





Latest BIOS:
LINK

BCLK
measured in MHz
Base Clock Increasing your base clock increases your CPU core clocks, memory speed, QPI frequency, and North Bridge Frequency
-Similar to the older FSB “Front Side Bus”
BCLK x CPU ratio = CPU frequency
Adjust the BCLK frequency to overclock the CPU speed!

Multiplier
-Multiplier is a ratio that determines the clock speed for the CPU based on the multiplication of the BCLK. For example, your CPU multiplier determines what your CPU core clock speed is using this formula: Base clock * multiplier
There are also multipliers for Memory frequency, QPI speed, and North Bridge (UCLK) frequency.

PCIE
measured in MHz
Periferal Connect Interface Express
-Video Graphics communication link
when overclocking, increasing the PCI-E clock can help with stability when above 200MHz BCLK

CPU Voltage
AKA -VCore this is your processor core voltage. Increasing this will supply your CPU cores the power they need to operate at higher frequencies.
Central Processing Unit
-Processor core voltage
DO NOT EXCEED 1.55v

IMC Voltage
"VTT" or "QPI" Increasing this will supply the power needed for the IMC (North Bridge) to operate at higher frequencies.
- L3 shared cache
- memory controller
- processor I/O power rail
Since memory controller frequency is dependent on BCLK, the higher the BCLK, the higher the IMC voltage required. DO NOT Exceed 1.45v

DRAM Voltage
DDR3 Random Access Memory
-Memory Voltage
Since DRAM speed is linked to the BCLK the higher the BCLK the higher the DRAM Voltage is needed

CPU PLL Voltage
PLL: Phase Locked Loop voltage
- Processor/IMC(Integrated Memory Controller)/other internal clock cycles
- Clock multiplying of processor is provided by an internal Phase Locked Loop
Does not have a significant effect on CPU Speed, -DO NOT Exceed 1.90v

PCH Voltage
Platform Controller Hub
- main I/O interface for CPU
- display connectivity
- Integrated Audio
- power management features
- Storage features
The higher the CPU frequency, the harder the I/O (input and output) has to work so there is higher power consumption and more heat is generated, raising the CPU temperature. The PCH voltage needs to be increased in order to stabilize I/O signaling. DO NOT EXCEED 1.25v

vroom vroom SB!

OC Guides & Tips:
LGA1155 Overclocking Glossary
Asus P67/Z68 OC Guides
Asus P67 OC Guides

Latest Overclocking Programs, System Info, Benchmarking, & Stability Tools
LINK - credit to stasio

Monitoring Tools:
CPU-Z 1.61
RealTemp 3.70
CoreTemp 1.0 RC3
HWiNFO 3.95
Mem TweakIT 1.01.6
CPU-Tweaker 2.0 Beta 15

Stability/Stressing Tools: - Pls install win7 SP1 for max stressing
LinX 0.6.4 - 10.3.11.019
PS: For those having problems with bench not starting, try to set mem manually or set it a bit lower than "ALL" preset
Intel BurnTest 2.52
Prime95 27.7 Build 2 X64
Prime95 27.7 Build 2 X86



Benchmark Tools:
SuperPI Mod XS 1.5
HyperPI 0.99 Beta
AIDA64 2.30.1900
Cinebench 11.5
wprime 2.09
pifast
maxxmem
AquaMark 3.1

BSOD codes for overclocking


This post has been edited by owikh84: Aug 8 2012, 06:41 AM

Gigabyte P67A-UD7

Intel Core i7 2600K 4.6GHz HT ON (4C/8T)
Gigabyte P67A-UD7
2x2GB Corsair DomGT DDR3-2000 CL7
2x MSI GTX580SLI, 930/4100Mhz
Corsair AX1200

LinX (* OLD version GFlops is lower)

Vantage:

Super Pi 32M: 7-7-7-20



i7 2600K @ 4.7GHz HT ON (4C/8T) LinX (* OLD version GFlops is lower)


i7 2600K @ 4.8GHz HT ON (4C/8T)


i7 2600K @ 4.9GHz HT ON (4C/8T)
LinX (* OLD version GFlops is lower), SPI 1M, 32M:

Cinebench:

3DMark PhysX:


Intel Core i7 2600K 5.0GHz HT ON (4C/8T)
LinX - latest with AVX

Prime95:


This post has been edited by owikh84: Aug 30 2011, 08:27 PM

Asus Maximus IV Extreme

Intel Core i7 2600K @ 5.0GHz HT ON (4C/8T)
Asus Maximus IV Extreme
2x2GB GSkill RipjawsX 2200C7 @ 2133Mhz 7-10-7-27-1T
2x MSI GTX580 SLI, 930/4100Mhz
Corsair AX1200

LinX - Latest with AVX

Vantage:

Pi 32M:


5.1 GHz HT ON
LinX - Latest with AVX

3DMark06:

Vantage PhysX ON:

PhysX OFF:

wPrime:

Pi 32M:


5.614 GHz


This post has been edited by owikh84: Jan 28 2014, 06:39 AM

Gigabyte P67A-UD7 vs Asus Maximus IV Extreme



Asus BIOS Template


This post has been edited by owikh84: Sep 16 2011, 05:14 PM

dang...so fast!!!!
owikh...can u post the temp ss??
thanks...

This post has been edited by selfdz87: Jan 8 2011, 12:55 AM

105mhz. isn't that a bit risky? and what cooling are u using atm?

No idea bro, for time being getting to know 2600K's behaviour.
Will be using the latest bios F6E for more promising results, hopefully.
WC kit is as siggy for i7 920. Yes, I'm still using the same parts.
I oso got Asus Maximus IV Extreme at the same time.

so the mounting as rumor says, LGA1156 = LGA1155? would like to see some linx gflops results should get 70+ easily

Correct. The 1156 bracket fits nicely w/o modding.
The board:

Foxconn chipset:

Aiya that PCIEx1 hates my D2X.

Wow.. So nice..

lol.. I couldn't upload pics in imageshack and photobucket atm.. anyone encounter the same prob? Using 4MBbs haiz
lol lol...

---

Added on January 8, 2011, 8:19 amFrom my LinX result.
i7 2600K 4.6Ghz HT produce the same GFlops as i7 920 4.5Ghz HT ~ 59ish

---

Added on January 8, 2011, 8:29 amCan't upload pics atm.
LinX 20 runs
i7 2600K @ 4.6Ghz HT, vCore 1.332v on WC
Idle: 36C, Load: 65C
Ambient: 30C.

Hint: Corsair H5O/Venomous-X is 15C weaker than my custom WC so 65+15=80C this speed is still acceptable for air cooling.

This post has been edited by owikh84: Jan 8 2011, 09:57 AM

59gflop.... must be the ram....

how is gaming performance? any noticeable improvements?
might get into it if there is some gain in gaming, but most sites only report low res gaming.....

xpe. can put at other pci-e slot

hehe

Hmm not really concern abt gaming when it comes to CPU.
My GTX580SLI already shines all the benchies.

For some reason the PCIEx1 will make things easier for me.

btw, here's 4.7Ghz stable at 1.375v

damn UD7 keeps failing to flash bios, invalid image haiz...

Asus Maximus 4 Extreme...


This post has been edited by owikh84: Jan 16 2011, 08:20 AM

you seriously need 2400mhz dual channel ram bro.... may i suggest THIS so u can run 2133mhz mode

This post has been edited by metsatsu: Jan 8 2011, 03:35 PM

Bro Owikh u got that M4E already? Wow? How much?

No matter how much you achieve.. I must say this

You are a rich guy with strong balls... Continue your OCing! Gambateh!

aiyark !

@metsatsu

what do u mean dangerous when increase to 105 mhz ?

and how to OC this thing actually ?
any reference for BIOS setting ?
i got i5-2400 lying around .
seems like the multiplier locked at 38 .
so boring .
i cant even achieve 4ghz from 3.1ghz .
too darn boring platform

No point to get 2400MHz since max mem multi for P67 is 21.33x only.
Although Intel allows 10% increase in BCLK, most proc cant do anything above 104 BCLK hence 21.33x104=2218MHz is the max mem freq for P67.mmI will raise my mem after this. Should hv no prob for me.

yes received M4E today for RM1.2k only. Great package as always

Thanks1

yes u can do 4Ghz with 107 BCLK, but I doubt its stability for daily usage.
As for me, dont expect much from 2400 becoz it is not a (K)evin.

4.8Ghz HT ON stable at 1.435v
it is still possible on air. Might get better by reducing the CPU PLL

(I will raise my ram to 2133Mhz later..)

This post has been edited by owikh84: Jan 16 2011, 08:20 AM

owikh thanks...
the temp look so nice even on 4.7ghz...HT on summore...
eh...why u no try evga mobo 1st instead of gigabyte??

This post has been edited by selfdz87: Jan 8 2011, 09:22 PM

Still no ETA for EVGA, it is in my buying list as well.
Yeah quite happy with the 32nm SB, dun think u can do 4.6Ghz HT ON with Bloomfield

ah crap !
this new sandy bridge really suck man !
y intel do this to us ?!!

@owikh84

wat voltage should i bump for 3.8-4.0ghz ?

and what should i alter for 106/107 bclk ?

i tried to simply add up the vCore and the PC wont boot at 38x multiplier .


This post has been edited by monsh: Jan 8 2011, 11:51 PM

erm... duno wat or who sucks. Could be ur fren sucked by SB
not sure abt ur 2400 but slightly more than 1.25v, dun do anything on VTT let it auto or 1.2v
there's a BCLK settings in BIOS, it is there. Advise to let it be default 100 until u manage to hit 38x multi successfully.

First board Asus P8P67 Pro tested with NDA lifted on retail I7 2600K. Been spending few hours in playing this board and chip.

Specifications of board,
- Support up to DDR3 2200
- 2 x PCIe 2.0 x16 (single at x16 or dual at x8/x8 mode)
- 1 x PCIe 2.0 x16 * [Black] (max. at x4 mode, compatible with PCIe x1 and x4 devices)
- 2 x PCIe 2.0 x1
- 2 x PCI
- Support CrossX and SLI Technology
- Intel® P67 Express Chipset
2 xSATA 6.0 Gb/s ports (gray)
4 xSATA 3.0 Gb/s ports (blue)
Intel® Rapid Storage Technology Support RAID 0,1,5,10
- Marvell® 9120 controller
2 xSATA 6.0 Gb/s ports (navy blue)*
- JMicron® JMB362 SATA controller
2 xExternal SATA 3.0 Gb/s ports*

Some picture to share:

The front side of motherboard and chip,


The back of motherboard,


Layout of board,


EPU Switch - no test on this switch as I dun have many fans, monitors and hard drive on my test rig,
DRAM LED - Mainly checking on ram, if the red light stay on which mean the memory are giving issue


TPU Switch, for lazy people who want to OC with ease, just enable this switch before power up and after power on, the board will do the OC job,


CLRTC Jumper,


I/O


Test system,
Motherboard : Asus P8P67 Pro
CPU : Intel I7 2600K
Memory : GSKILL FLARE PC3 16000
PSU: Corsair HX950W
OS: Window 7 64 bit

First the result on stock speed,






Overclocking result with TPU Switch Enabled,






Highest acheived 5.25Ghz. Been spending 2 hours for my memory and get none. Memory giving a lot of issues and need some better memory dedicated to Sandy Bridge. Max achived at bclk 103 but the system is not stable at all. No post and have to lower down the bclk to 100 and CPU Turbo to crank up again. No extreme overvolt is available and max voltage capped at 1.53V. Only bclk can bring the clock speed up a little more (Test next time when I have the SB memory)






Last, voltage scaling for my chip during the benching,
1.2V at 4.5Ghz
1.25 at 4.6Ghz
1.3V at 4.8Ghz
1.365V at 5Ghz
1.51V at 5.25Ghz

Tired need to sleep... fainting soon..

undefined





This post has been edited by louislkw: Jan 9 2011, 06:36 PM


Attached thumbnail(s)

Bro Owikh, where do u get that M4E? I'm interested also

I thought it has arrived LYP. no?
I got it from CEX said to be last stock.

@monsh

u should read this article

http://www.bit-tech.net/hardware/cpus/2011...core-i5-2500k/2

Nice article I've included this link to #1 post. TQ!

oh you did? sorry about that... Guess I also haven't been paying attention

TS means, he edited the first post to "include" ur find

i7 2600K @ 4.9GHz HT ON (4C/8T), 1.476v load (LLC on)
WC: EK Supreme HF Ac+Ni + MCP655V EK-TOP + EK 250 X2 Adv + TFC480+360 + 2x EK FC480 Ac+Ni + 14x Scythe GTs
Gigabyte GA P67A UD7, F6X
Corsair DomGT 2000C7 @ 1866MHz 7-7-7-20-1T
Intel X25-M 160GB
2x GTX580SLI @ 900/4100MHz
Corsair AX1200

LinX, SPI 1M, 32M:


Cinebench:


3DMark PhysX:

Very Nice!

No result for M4E?

sigh.... thanks jinster. sorry again, i just woke up when i posted that

Unfortunately that would be next week.
The LinX test above showed that it is impossible to be done on air cooling (non-aircond)
So 5GHz on air (not water) wont happen in Malaysia. Unless in aircond or highlands.

why don't u try turning off HT. u might get better Gflops

ok will give it a reading .
thanks dude .

This post has been edited by monsh: Jan 9 2011, 12:14 PM

bro,i tink u can combine with bro owikh84 thread since this board is sandy bridge category

All o/c is on air cool and room temp is?

60C for 5.25ghz ?
what cooling ur using dude ?

Bench with water cooling in air con room.

Thanks for sharing! Dos share your final 24/7 oc speeds and temps on your WC kit assuming you have done all your benching.

Thank for the link. They recommended that 1.3v should be ok for everyday overclocking.

Just wondering if the voltage was around 1.3-1.35v, how high can we overclock the 2600k using good air-cooling?

---

Added on January 9, 2011, 6:41 pmPlanning to get one for folding?

This post has been edited by kmarc: Jan 9 2011, 06:41 PM

But of course bro - what else? keke. This would make a nice replacement for my 4-year old C2D rig.

I hope 1.3-1.35v would have some decent temps in our hot weather too and hopefully at least 4.5GHz...still waiting for more "localised" reviews before deciding to purchase, so I think I will save up and take my plunge maybe Q2 with hopefully revision 1.1 or 2.0 mobos...what about you?

This post has been edited by Diademz: Jan 9 2011, 08:28 PM

I fold with my i5 760 at 2.x... (I put 160 bclk and allow turbo and speedstep to run)
if I put 100% it pushes the proc to 3.5 full time..and I think that is counter productive of me allowing speedstep

Nice!

My plan is to get the 2500k but that will be in the near future. That's why I was asking about the OC speed if overvolt to 1.30-1.35v as I don't think I will go higher than that.


Yeah, if you fold at 100%, then speedstep won't be utilized. However, it is still useful in those times when you stop folding to do other work.

Very cool! Yea I too want my new PC to last another 4-5 years keke running at 100% utilisation 24/7 keke.

louislkw's topic merged

wat headsink you using

Not so soon I beleived. Still have few boards to test.

Thanks.

You mean mine? On water-cooling with EK supreme HF jet plate no 4.

Played a little with Sandy.

CPU: Intel i7 2600K
Mainboard: MSI P67A-GD65
Memory: Corsair XMS3 1600MHz 7-7-7-20
Heatsink: Scythe Ninja 3
OS: Win XP



This post has been edited by MSI-MY: Jan 11 2011, 01:26 PM

Great...

What is the OS used?

Edited with OS included. it's Win XP.

Thanks.

Can make a run with 32M?

wow. What are your idle/load temps and what CPU cooler are you using?

On another note, the infamous TW OC sifu said the following



Still waiting for more local temperature results especially at 4.5GHz, stable 24/7.

woot~Vcore 1.5v..
what max Vcore 1156 ?..

Having issues booting Win7 x64 with multi x50 and above. It will stuck at win logo most of the times, randomly. Somehow can boot everytime into WinXP x64 til x54. Hmm either buggy bios or Win7 need a patch for 5Ghz+. Another issue is my dram is not natively support for P67 mobos. Cant do 2133Mhz on UD7, but Maximus is doable.

I get 4.4ghz stable only at 1.30V. I dont know how others get theirs above that as i'll get blue screen during windows booting if i ramp the multi to 45X. So far i only raise the Vcore , other voltage i haven't learn yet

Flashing bios to the latest beta solved my booting issue at 50x multi.
Download links
M4E

other voltages dont seems to do much for sandy overclocking......

Gv it some time bro Sandy is just out. I believe immature bios stil ruins OCing atm.
I can see from bios to bios it gets improvement in clocks vs voltage. Ram OC is terrible at higher frequencies but as said bios issue is the reason. Btw M4E supports 2400mhz ram in their bios settings but I still couldnt find the best settings to make it booted at 2400 at rated timings. Im using Patriot 2400c9.

my ud-4 llc still get vdroop ; ;
i got it to run at 5 gig though using 1.5v but it crashed like 5 hrs later not sure if i wanna go any higher in voltage....

Special guest has arrived,

A sneak preview,





Sorry for the poor picture. Will take another set again.

Update over the weekend.

Wahh bro is that Gskill 2133? Cant wait for the benchmark.

Is anyone getting their oc to prime95 stable?

After a long wait, received the memory from GSKILL. This is the new memory line up for new Intel Sandy Bridge. It's work excellent on the P67 board.

Let the number do the dancing.

Specification of Ripjaw-X,
DRAM Frequency - 2133Mhz
Timing - CL7-10-7-27
Capacity - 2X2GB
Voltage - 1.65V









Test System,
CPU - Intel I7 2600K
Motherboard - Asus P8P67PRO & Asrock P67 Extreme 4
Memory - GSKILL Ripjaw-X 2133Mhz
OS- Window 7 64









Thanks for viewing.

This post has been edited by louislkw: Jan 16 2011, 09:30 AM

U got nice dram dude. Look at the bandwidth.
and 5.5Ghz

Go and hoot GSKILL memory.

waiting for local distro bring in good models is like forever bro
going to order myself lah thanks!

nice ram wish they sell it here....... was looking for it too. finally got my 5 gig overclock to stable in p95 small fft temp is scary though 89 max lol

kevink82. Ur UD4 is not really bad bro.
Dun really need an expensive (overpriced) mobo for 5GHz.

not much choice here in miri, and m4e is just too much for me atm, asus boards atm looks to be clocking better though most forums got theirs hammering along 5 gig p95 with lower voltage....

that or my chip just blows..... 1.51v

Nice memory and benchmark.
How much you pay ?
Maybe Karom or lingloong will list them this month.
Btw,your Super Talent WX200UX6G7 are still under Karom V1?
My Hypers didn't play well with P67,time to change.

This post has been edited by stasio: Jan 16 2011, 03:35 PM

LOL that Elpida STT is in the list since long time ago but the bulk had never proceed. Sorry karom.
I dun think that model is still avail since it is declared as EOL by mfr.

LOL..i envy u guys on 2600k..me on 2500k for the time being only clock to 4ghz..1.14volt..afraid cuz still using stock cooling

2500K is not bad as well bro w/o HT u can go 5.0Ghz easier than 2600K due to less volt required and lower heat generated.
But to OC to the max u better grab Corsair H7O if custom wc is not within ur budget.

owhh..yup planning to get the H70 after this..but i'm gonna keep close tab to this thread since i still a noob in this stuff..

great to hear ur decision bro, later pls share us ur OC experience yeah
we also wanna see 2500K in action instead of 2600K dominating this thread

im using an i5 2500k , hd 5850 and psu 550w odin pro gigabyte psu unit..can i oc ka boss? please guide me massstaaa!!

@kahjye

yeap with this new sandy bridge,it'll be easier since u can only play around with the multiplier instead of the base clock .

basically, all u have to do is raise the multiplier until the desired speed .
about the voltage, im not sure, can ask other sifu here .

i have no idea with the new bios...im using the asus board...the whole bios is different now lol...oh..? so my psu is okay for this spec?

cause alot of my friend told me to get 750w cause 550w true power is not enuf lol..

Yo, BCLK 108.01 :b1:



Still far from 109

damn..how to oc? LOl...

Maximus IV Extreme 0681 BIOS

http://www.mediafire.com/?59s1i176jl6ou8z

can i change mine to that? hahahahahah will void warranty rite?

---

Added on January 17, 2011, 12:54 amoh ya , + if i oc my i5 2500k to 4.0ghz , do i need to raise up the vcore?

This post has been edited by kahjye: Jan 17 2011, 12:54 AM

thanks stasio, the last 2 bioses didn't allow me to adjust BCLK.
Hope this one permit it.

@ kahjye
this bios is for M4E board only and u cannot simply flash the wrong bios.

This post has been edited by owikh84: Jan 17 2011, 06:49 AM

anyne?

oc`ing just need to adjust the multiplier ?