**Official e8400/e8500 Retail OC Thread

[Jupiler]

my Q807A276

Q814 seems to be good too

Go for Q807A241 4005 @ 1,200V rockstable

Haben will.

[camouflage]

Time to push the chip a bit

[Inteleron]

anyone clocking these 84/8500's on the 790I Ultra platform yet?

[Kizmo]

Great, I look forward to your results!

Now im doing prime @ 4050MHz @ 1.282V

Aircooled (Scythe infinity and 5V silent fan)

[Big Myke]

CPU-Z shows that I am running 4.2GHz at 1.408V on watercooling. I'm on a Striker II Extreme 790i Ultra board. How safe exactly is 1.4V on an E8400? I'm very, very new to these 45nm cpus.

[Kizmo]

CPU-Z shows that I am running 4.2GHz at 1.408V on watercooling. I'm on a Striker II Extreme 790i Ultra board. How safe exactly is 1.4V on an E8400? I'm very, very new to these 45nm cpus.

Its totally safe with water

[Big Myke]

Its totally safe with water

Thank you, thank you very much. My temps are 30C on both cores with the voltages. I knew the temps are okay but I wasn't sure if it could handle the voltage. cheers.

[zfactor]

cant you also do 1.4 with good air??

[[XC] Hicks121]

cant you also do 1.4 with good air??

I am, been running World Community Grid on it 24/7 @ 455 x 9 @ 1.4v.

Its on a TRUE thats lapped. Full load only hits 38c.

[Zifko]

I am, been running World Community Grid on it 24/7 @ 455 x 9 @ 1.4v.

Its on a TRUE thats lapped. Full load only hits 38c.

Mind if I ask your temps were for NB/SB/MB? I used 444 x 9 and my temps on the Asus Maximum Extreme were mid to high 40's, doesn't seem right. These are the temps showing in PC Probe 2 and CPUID.

[Rol-Co]

anyone clocking these 84/8500's on the 790I Ultra platform yet?

yep , started of with a E8200 q809A249



Tuniq Tower 120 cooled.

[Leeghoofd]

Nice going Rolco , damn I wanted one of those E8200 from Nils you beat me to it, you madman !!!

[dnottis]

Ive got a one that is giving some crazy temps. Used other E8400, E3110 and Q6600s and never got hot on my water setup.

Does 4.1 @ 1.32v (load 55c), 4.2 takes 1.45v but load temps are 4.2 are like 80c. From my experience I believe the sensor (using realtemp) is about 10 deg off. I had this chip over 100C but neither the water or the block was warm. at 4.5 idle was about 70, load over 100 lol, again nothing was even hot though.

What kind of temps do you guys see over 4.2Ghz? Is there a big jump in voltage to get these chips stable over ~ 4.2 Ghz?

[sofarfrome]

What kind of temps do you guys see over 4.2Ghz? Is there a big jump in voltage to get these chips stable over ~ 4.2 Ghz?

Mine runs at 4.3GHz with 1.344vcore and under load temps are around 58-59C but I am not sure if the temps are accurate with coretemp.

[mrcape]

I have two 8400 that stay around 60c Blend/OCCT/Prime loaded at 1.33v / 4.25ghz, and a third I'm helping someone with (805A) that jumps to 75c with only 1.3v / 4ghz.

I feel lucky that the two I own seem to have normal sensors. Interested to see what you guys find out about the chips that look as if they're running mad hot on medium volts.

[Zifko]

I've been keeping an eye on this thread for about a month now and I'm not seeing anyone else reporting similar situations. This is the first time I've tried to over clock but anyway getting to the point.

I had just about everything default in BIOS and when I checked what my tempatures were for the NB/SB/MB using PC Probe 2, they show in mid 40's. In CPUID the readings are in the high 40's. My CPU shows at 25c in PC Probe, 39c in CPUID, 29c in Real Temp.

When I overclock the computer to 4Ghz my temperatures are showing up on the CPU at 25c in PC Probe, 39c in CoreTemp. So yeah to a person thats never done this kind of thing and seeing these temperatures I'm not sure what to think.

The only thing I can think of is how close the heatsink sits near the NB and maybe there's bad air circulation? This case has 5 140mm fans in it and I have one on the heatsink, maybe I should get another one to do a push/pull airflow?

Here's some screen shots of both the readings and how close the heatsink sits near the NB. If anyone has some ideas to shed on this I'd appreciate it.

[dnottis]

I have two 8400 that stay around 60c Blend/OCCT/Prime loaded at 1.33v / 4.25ghz, and a third I'm helping someone with (805A) that jumps to 75c with only 1.3v / 4ghz.

I feel lucky that the two I own seem to have normal sensors. Interested to see what you guys find out about the chips that look as if they're running mad hot on medium volts.

can you run Small FFTs orthos at that speed?

I have had my chip up to 4500, small FFT stable into 4.1s but anything more and one core will fail quick.

[mrcape]

I ran orthos custom test 10k for 2 hours and 8k for an hour and stopped them. Also OCCT 1 hour. Haven't tried the regular orthos small fft but I could try that next time I test.

[ixtapalapaquetl]

I finally got my temperatures under control. Previously, exceeding 90C on load was commonplace despite IHS removal and moving to water cooling. I gave the core a gentle lap and switched to Coollaboratory TIM and finally saw a 20C drop. This really opened the chip up.



Now I just have to figure out how to get 4x1GB Team D9GKX dialed in at CAS 4 at this FSB. I'm close, but not there yet...

[mrcape]

I finally got my temperatures under control. Previously, exceeding 90C on load was commonplace despite IHS removal and moving to water cooling. I gave the core a gentle lap and switched to Coollaboratory TIM and finally saw a 20C drop. This really opened the chip up.

Dude that's pretty awesome.

[syl]

I finally got my temperatures under control. Previously, exceeding 90C on load was commonplace despite IHS removal and moving to water cooling. I gave the core a gentle lap and switched to Coollaboratory TIM and finally saw a 20C drop. This really opened the chip up.

Wow! Great job bringing down the temps. My similar OC at a lower Vcore is 5c higher:

[kadir_slayer]

can you run Small FFTs orthos at that speed?

I have had my chip up to 4500, small FFT stable into 4.1s but anything more and one core will fail quick.

dude, I have similar problem.. Mine does 4.0 with only 1.288 load but cores reaches 84-85 (coretemp). it idles at 44 but it adds another forty degree when it loads. I think it is totally weird. When I set the voltage higher and set higher mhz it reaches above 100 and it throttles!!!! but I swear there is no physical sign that it is really that hot. I touch the cooler and it is just warm. The air comes back from the cooler is also cool. I know that if it is really that hot, a real hot air should come out from the cpu cooler and case cooler..

I would just like to know when the cpu throttles does it mean that it really gets that hot or it throttles just because the sensors tells it to throttle even they are wrong?? ı mean can the cpu throttle because of broken sensors even though it is not that hot in real??

[dnottis]

Here is my L743A

[tranceaddict]

Wow! Great job bringing down the temps. My similar OC at a lower Vcore is 5c higher:

Wow, this has to be the best clocking chip I have seen. Don't get me wrong I've seen many E8400/E8500s @ around 4500MHz, but never with a Prime stability and a Vcore like yours.

[mrcape]

That's true, geez Syl that looks like a great chip. Like the low VID. And 1.34Vcore for 4.42ghz 17hrs stable is real nice.. : )