**Official e8400/e8500 Retail OC Thread

[Psitech]

<- jealous I need .1v MORE to run 4.1 orthos stable. Talk about lame.

I feel your pain. This is the first time I've ever been lucky and gotten a gem of a chip. It's weird how there is so much difference between batches.

[icywater]

Maybe unlucky there, what can the CPU do ? Are you 100% sure it's the CPU ?

lol it need 1.384v for 3.9Ghz ortho for 8hours and 5 mins so far. wha can i try to bring the volt down. I has a P5k-E wifi Mboard.

[Mykou]

<- jealous I need .1v MORE to run 4.1 orthos stable. Talk about lame.

don't have regret , some run orthos 4ghz with 1.17v load .... ( not me lol )

[sniggle]

Just got in a retail E8400 today from mwave.com. Pack date is 3/27/08 so it's ultra fresh. Currently priming at 3.83ghz (425 * 9), 1.25v in bios on a DFI P35 UT T2R. It primed fine at 3.6ghz stock voltage but only for about 10 minutes before I wanted to try higher.

I'll post back later with further results.

[Hughyhunter]

Alright... so I thought I would try to see how low I could go. This is about it... cant really remember what I set it to in bios but this is what it reads in cpu-z under load. Sniggle.... try 1800fsb. I couldnt get it stable below 1.38+ in bios.

[sniggle]

It's not that I wasn't stable at 3.6; it's that I didn't give it a chance to fail. I knew this chip could do better.

Now priming at 4.05ghz @ 1.33v in bios. When I tried 4.2 it would not even do one iteration of prime before failing even at 1.36v so I knew I was hitting the point of diminishing returns. I might try to optimize further to get 4.2 stable but 4.05 was my goal so I'm good here for now.

[Ovidiu]

Hello, my first post on this forum so i hope it's gonna be a good one. Yesterday I've installed a Scythe Ninja Plus so i wanted to see what can my e8400 do. The FPO is Q746A496 and it's pack date 1/31/08. Tell me what do you think about the temperatures and give me tips because i need them . I know it should be a 1 hour Orthos test, but i got bored after 10 minutes .

[sniggle]

I am going to settle on 4.15ghz @ 1.4v for now. It's needing way more voltage to get any higher. This setting is prime (small fft) stable for 9.5 hours which is good enough for me. I might actually be able to get away with lower voltage since I made a fairly random jump to 1.4 after 1.38 didn't work @ 4.2ghz.

The chip is a SLAPL, FPO is Q802A321

[maxwedge]

Hello, my first post on this forum so i hope it's gonna be a good one. Yesterday I've installed a Scythe Ninja Plus so i wanted to see what can my e8400 do. The FPO is Q746A496 and it's pack date 1/31/08. Tell me what do you think about the temperatures and give me tips because i need them . I know it should be a 1 hour Orthos test, but i got bored after 10 minutes .

Wow, going for the gusto! Looks ok to me but how much vcore and which board are you using. I just put one of these in my IP35 Pro but haven't tested it much. Pack date is 3/18/08. Right now I'm just seeing how far it can go on default vcore.

[Robilar]

The temps on this chip are way out of kilter.

With realtemp, idle is high 40's but load is only a couple of degrees higher.

I was able to oc to 3.6 at auto voltage (little over an hour of orthos so far)


The VID on this chip is 1.0625 (not sure if that is good or not though)

Are the temps actual? I have a lapped thermalright ultra 120 e with a monster fan on it. With my Q6600 overclocked to 3.2, idle was around 34c or less on cores and load maxed out at 52C and downwards.

[Big Lar]

The temps on this chip are way out of kilter.

With realtemp, idle is high 40's but load is only a couple of degrees higher.

I was able to oc to 3.6 at auto voltage (little over an hour of orthos so far)


The VID on this chip is 1.0625 (not sure if that is good or not though)

Are the temps actual? I have a lapped thermalright ultra 120 e with a monster fan on it. With my Q6600 overclocked to 3.2, idle was around 34c or less on cores and load maxed out at 52C and downwards.

Looks like your sensor for the chip is stuck, many are. Your vid is good, tho middle of the road.

Larry

[maxwedge]

Looks like your sensor for the chip is stuck, many are.

Larry

Is that what it is? Then my core #1 is stuck because the temp doesn't change from idle to load.

[Hughyhunter]

@ Robilar: Mine idles at 34c no matter how low I go. For example my o'c 4.05ghz 1.38v idles 34c. My 3.6ghz 1.2v idles 34c. I have non-lapped TRUE. I say just make sure it's mounted solid and you should be good.

@ ovidiu: 10mins means jack IMO. I've ran solid for 45mins and gotten errors after that. I would say IMHO that 2 hours is proof of stability. Anything shorter just doesn't cut it in my book. Post back with a 2 hour stress or longer for stability praise


@ sniggle. That's rock solid stable IMO. What is memory set to? Linked/unlinked? all other settings. I've had a hard time above 1800mhz FSB. Actually I was stable for 10 hours Prime95 @ 1800mhz, 1.375v and when I did orthos I was failing after 45mins same settings. I never did try to get orthos stable I went all the way up to 1.385 or something and just got mad. I am stable now though at 1600mhz @ 1.2v, pretty happy with low setting.

General q: I set Intel speedstep auto and power management in windows to balanced. So multi at idle drops to 6x. Is there a reason why I shouldn't do this? I mean it jumps up with a load. I just figured why not save a bit on energy bill when I'm not playing games or using cpu intensely. The power is there when I need it and it's stable. I'm just wondering why others aren't doing this.

[ThatGuy16]

The temps on this chip are way out of kilter.

With realtemp, idle is high 40's but load is only a couple of degrees higher.

I was able to oc to 3.6 at auto voltage (little over an hour of orthos so far)


The VID on this chip is 1.0625 (not sure if that is good or not though)

Are the temps actual? I have a lapped thermalright ultra 120 e with a monster fan on it. With my Q6600 overclocked to 3.2, idle was around 34c or less on cores and load maxed out at 52C and downwards.

Many of the sensors seem messed up on these chips. One of mine is almost completely stuck, and the other hardly fluctuates.

I personally have been going by the CPU temp (tcase i think), it seems to be dead on accurate.

[Big Lar]

My Core 0 is stuck on 34C until I get over that, then it works, Core 1 seems to work, at least I think so as it says I am 27C idle.
Smart Guardian gives my 15C idle.

Larry

[GUFY]

Here is my E8400 Q748A094 i m happy for now

[Big Lar]

@ GUFY Nice job, and NO problem seeing the Screen Shot

Larry

[AndyM]

My wet dream

4.5 Ghz



Dies on small FFT's, pushed vcore to 1.488 before cowardace set in. What do you guys think...venture into 1.5+ vcore territory?

I love those nice round numbers, makes a killer screenshot

[Big Lar]

@ AndyM, What are your other voltage settings, ie; VTT and Northbridge at?

Larry

[halo112358]

Don't be too hasty, that has not actually been confirmed, still there are a lot
of people that cannot reach there initial stable clocks without adding more voltage, including me.

I have to wonder if people aren't doing something in their initial testing that's different from later testing. I know I had some similar/strange behavior on my e6750 - I was 100% stable (OCCT for like 6 hours) at 3.6ghz for the first couple of months, following that I could only hit 3.35 with some instability at the same volts.

The biggest thing I wonder is if ambient conditions changed, or airflow, or dust accumulated in the machine, that kind of thing.

[dnottis]

I have to wonder if people aren't doing something in their initial testing that's different from later testing. I know I had some similar/strange behavior on my e6750 - I was 100% stable (OCCT for like 6 hours) at 3.6ghz for the first couple of months, following that I could only hit 3.35 with some instability at the same volts.

The biggest thing I wonder is if ambient conditions changed, or airflow, or dust accumulated in the machine, that kind of thing.

QFT I agree - also a fresh coat of TIM always helps too.

[AndyM]

@ AndyM, What are your other voltage settings, ie; VTT and Northbridge at?

Larry

Stock, 1.1 and 1.25 (minimums in bios)

[Big Lar]

Well, may help to give the NB Just a nudge if it starts getting flakey on you.

Larry

[sniggle]

@ sniggle. That's rock solid stable IMO. What is memory set to? Linked/unlinked? all other settings. I've had a hard time above 1800mhz FSB. Actually I was stable for 10 hours Prime95 @ 1800mhz, 1.375v and when I did orthos I was failing after 45mins same settings. I never did try to get orthos stable I went all the way up to 1.385 or something and just got mad. I am stable now though at 1600mhz @ 1.2v, pretty happy with low setting.

Memory is unlinked at 5:6. Haven't tried orthos yet but I just played Titan's Quest for a few hours with no issues. Before I go to sleep tonight I might drop the vcore and NB voltage a notch and see if it's still stable. Maybe even the VTT since I upped it on a whim.

[DStealth]

My wet dream

Wet dream

Here's my wet dream :

Load 66-68* you can see them at the taskbar down...

Can run all 3dmarks ~ 4650-4700 @1.41-1.43V range
Here's one 4625 1.41 ilde load goes to 1.392...