4 ghz club

[jednx01]

So... Have you guys managed to overclock your CPU in the range of 4 ghz? If so, what processor, voltage, and max temps? Also, what cooling method are you doing? Air, Water? What brand of cooler?
Me:

Core i7 930 @ 4.0 ghz @1.256 V/ min temp: 38C max: 75C

Air Cooling/ Prolimatech Megahalems w/ two fans in push, pull config

I've gotten up to 4.2 ghz, but decided to back it off. I just decided to stop OC'ing it. It simply took more voltage than I wanted to give it...

***edit: What is your highest STABLE overclock? *****

 

[ghnader hsmithot]

4.8 on air AMD. it was unstable.

 

[tecmo34]

This topic has been moved from the section CPU & Components to section Overclocking by Tecmo34

 

[jednx01]

This topic has been moved from the section CPU & Components to section Overclocking by Tecmo34

Thanks, dude. I should have posted it in that section in the first place...

 

[ghnader hsmithot]

you never said it had to be stable

 

[lowjack989]

AMD X4 965 @ 4.11 GHz-->1.45v ---> 24/7 stable
NB 2800 MHz 1.2v
HT 2600 MHz 1.2v
DRAM 1600 MHz 7-9-8-24-1T 1.6v
GPU 6870 1GB 925/1175 MHz
Heaven v2.5 DX11 1366x768 4xAA--->1021
Furmark DX11--->18125

26c ambient
28c idle
53c 100%

Corsair H50 push/pull

Highest OC that got through POST was 4.4GHz--->1.52v

 

[jednx01]

you never said it had to be stable

That's true. But I was kinda wondering what kind of practical results people were getting. Quite a few cpus can get high overclocks if your willing to send your voltage through the roof. I could hit 3.8 on my old core 2 quad, but I would have to send my voltage WAYYYYYY higher than was safe for the CPU, so I decided to keep it at 3.4 ghz... You guys can post both if you want, just make sure to state whether it was a stable OC or not.

 

[Ubrales]

4.0 on an i7-920 DO on a CM V8 heatsink @1.275 volts. Ran stable with idling temps around 35 degrees C which I didn't like. So, after a few days, I backed it down to 3.83 GHz, left the voltage at 1.275 and now idling temps are around 30 degrees with an ambient of 23 degrees.

 

[4Ryan6]

Intel Q9550 highest OC 4.0ghz
AMD 965 Black Edition highest OC 4.3ghz
Intel i5 2500K Sandy Bridge highest OC 5.1ghz
Intel i5 2550K Sandy Bridge highest OC 5.0ghz
Intel i7 2700K Sandy Bridge highest OC 5.3ghz

All the above overclocks were stable.

 

[jsc]

E7500 in a G'byte EP35-DS3P at 4.11 GHz 24 hour Prime95 stable.

 

[Ubrales]

E7500 in a G'byte EP35-DS3P at 4.11 GHz 24 hour Prime95 stable.

Great OC jsc! I respect your rank and expertise, and I understand stress tests, prime95, and also 'multiple environmental over-stress' used in products' design and manufacturing.

Except in a lab or research environment, why would someone run prime95 for extended periods of time? I ran it for about 15 minutes just to satisfy myself. (I also understand that components could and do fail during stress tests).

 

[wolfram23]

Why is the poll closed?

And I did 4.3ghz on an i5 750 - not 100% stable, but stable enough to run 3DMark11 and get it validated (see sig). For actually stable, 4.2ghz I think. Definitely did 4.13 stable. Daily I'm just a touch over 4.

 

[saint19]

Poll is now oepn.

Stable?...I have to test again since I don't remember.
Unstable: 1090T @ 4.6GHz, X4 955 C2 @ 4GHz and i5-655K @ 5.2GHz.

 

[cklaubur]

I reached 3.7 GHz on my C2D E7400. Idled about 35C, 60C full load.

Casey

 

[JackNaylorPE]

I use the BIOS profile feature to manage several different BIOS profiles which can be selected from menu at boot time.

920 in Asus R2E w/ 6GB CAS6 DDR3-1600 and Prolimatech Megahalems / IC Diamond 7 Karat
Everyday Profile - 3.8 GHz @ 1.1125 Vcore / 1.5825 DRAM ...max temps in mid-hi 50's, other BIOS settings all defaults
Gaming Profile - 4.0 Ghz ....don't remember voltages, max core at 72C, minor BIOS edits , HT Off
Extreme profile - 4.2 Ghz ....don't remember voltages, max core at 74C, BIOS heavily edited, HT on

i7-2600 in Asus WS Revolution w/ 8GB CAS 7 DDR3-1600 and Thermalright Silver Arrow / Shin Etsu 751
Everyday Profile - 4.4 GHz ...don't remember voltages (saved on other machine), max temps in mid-hi 50's, other BIOS settings all defaults
Gaming Profile - 4.8 Ghz, 1.4 Vcore ....temp range 69-79C, other BIOS settings all defaults .... still playing .... build machine right before spring break as B'day present for son, haven't got chance to tweak it yet. Gonna let machine "break in" a bit before tackling again.

Did get the GFX cards (pair of Asus 560 Ti CU II TOP's - 900MHz) well OC'd ... tested first 10 1000 MHz (no voltage tweak req'd), tested 2nd to 980 Mhz (1.075 volts) and hadda go to a family function.

 

[henydiah]

stable at 4.01Ghz : 1055T vcore 1.52v fulload 49C

 

[ww2003]

stable 4.6 ghz on I5 2500k at 1.34 v with temps of 35 idle and 61 load.

 

[Nakkiel]

So... Have you guys managed to overclock your CPU in the range of 4 ghz? If so, what processor, voltage, and max temps? Also, what cooling method are you doing? Air, Water? What brand of cooler?
Me:

Core i7 930 @ 4.0 ghz @1.256 V/ min temp: 38C max: 75C

Air Cooling/ Prolimatech Megahalems w/ two fans in push, pull config

I've gotten up to 4.2 ghz, but decided to back it off. I just decided to stop OC'ing it. It simply took more voltage than I wanted to give it...

***edit: What is your highest STABLE overclock? *****

Yes, 4.2GHz, AMD Phenom II X4 970 Black Edition Deneb, 1.48v core, ~53C max during stress tests. I'm using a Corsair Hydro H70 water cooler.

The core speed is great, but I noticed a much bigger performance jump with raising CPU-NB freq. I'm only running it at 2.4GHz CPU-NB, but can keep it stable up to 2.74GHz CPU-NB (everything else same as now). The problem is with warm room temp it gets up to 59C (high for that chip) during stress testing or 56C with a cooler room. I also wasn't really seeing any additional performance in games, already basically capped at what the ones I play atm are capable of.

 

[jsc]

... why would someone run prime95 for extended periods of time?

I am finicky about stability.

 

[_tru_]

topped out @ 84c WITH prime95 going. Using a corsair h60.front 2 intake and top exhaust were set to low so im thinking if i added a dab more shin etsu and switched fans to high itd get a few c cooler.

im running 4.5GHz @ 1.35v 24/7

 

[killer pc g15]

full watercooled
24/7 clocks 100% stable

2600k @ 5ghz 1.48V

GTX570 bios unlocked 950core @ 1.15V 4000mem

 

[Ubrales]

full watercooled
24/7 clocks 100% stable

2600k @ 5ghz 1.48V

GTX570 bios unlocked 950core @ 1.15V 4000mem

I know the Intel voltage spec of 1.502 or something like that for the i7-2600K, but I read some posters advising against anything over 1.350 volts. (Sorry, can't locate the source).

 

[killer pc g15]

I know the Intel voltage spec of 1.502 or something like that for the i7-2600K, but I read some posters advising against anything over 1.350 volts. (Sorry, can't locate the source).

yes i know what you mean but im on water and the temps are save

 

[wolfram23]

Voltage hurts a lot more than temps to be honest. Pretty sick OC tho.

 

[Leaps-from-Shadows]

2500K (L047B217 Malaysia) overclocked to 4.8GHz at 1.488v with occasional spikes to 1.496v
72+ hours Prime95 stable -- 24 hours Small FFTs, 24 hours In-place large FFTs, 24 hours custom Blend testing 11264MB of RAM (my system has 12GB of RAM)
61ºC peak Prime95 temp
EK-KIT H3O Supreme HF 360 water cooling loop (CPU only)

Palit GTX 570 Sonic (925 core, 1850 shader, 4200 memory) 1.100v

The system runs at the above settings 24/7, gets rebooted approximately once a week, and is only powered down when absolutely necessary (hardware upgrades and thunderstorms mainly). Einstein@Home is constantly running, loading all four CPU cores plus the GPU using CUDA even when I'm not actively using the system.

Note: For most overclockers, I do not recommend running the CPU voltage higher than 1.4v for an everyday overclock. I fully accept that my CPU will likely die an early death due to excessive voltage, and when it does I will simply buy a new one.