Overclocked my Retail E8400 - WOW!

[Xvys]

Got my E8400 this morning, batch Q740A555T. I just did some preliminary tests and I must say I am amazed! With default bios settings my E6300 did SuperPi 1M in 30.0 sec. I plopped in the E8400 at default and it did the 1m in 15.0 sec. Of course SuperPi is cache-centric, but a nice speed boost. The cpu vid is 1.1125v.

I o/c to 400 fsb and the vCore set to 1.28 automatically. All was well. So I tried the bios NOX o/c at 30% and Windows would not load. Then I manually set the bios on 460 (for no particular reason) and set the vCore to 1.40v and vDimm at 1.21v, with all the other voltages at or near their lowest settings. And so far totally stable at 4140Mhz! I have not tried to lower the voltage or increase the FSB as the most of the monitoring programs do not work. TAT does not open, SpeedFan does not show core temps and CoreTemp shows 15C on one core and 34C on the other. Under load the one core went up to 28C while the other did not move from 34C. So obviously some software upgrades are necessary before any serious o/c.

I will try to post a screenshot, but there does not seem to be that function in this post form?
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Asus P5K Deluxe/E8400 @ 4140Mhz / 2G Crucial 10th Anniv. / ATI X1950Pro / Ultra120 Extreme/ CM690 case / FSP FX600E GLN

 

[covert24]

just put it ina link. and congrads on that OC

 

[Tempered81]

wow, nice
is that on stock cooler?

Edit: ehhe i just saw your double post over at XS with screenshots. NICE!

 

[DSF]

When you say "totally stable," what have you done to stress it and for how long?

 

[Xvys]

I am using the ThermalRight Ultra 120 Extreme cpu heatsink. It has only been installed for one hour or so, butI have tried Prime Torture Test and Orthos for a short period to test stability. I will put it through it's paces this evening to test it's ultimate stability, after I up the FSB at bit more

Not sure how to link pictures. Is this some kind of cost saving measure by AnandTech not allowing uploaded pics? I guess they can save 10 cents in bandwidth, but at what cost to readership??

 

[aussiestilgar]

Just link to a free image hosting site, like imageshack or photobucket.

 

[DSF]

Originally posted by: Xvys
I am using the ThermalRight Ultra 120 Extreme cpu heatsink. It has only been installed for one hour or so, butI have tried Prime Torture Test and Orthos for a short period to test stability. I will put it through it's paces this evening to test it's ultimate stability, after I up the FSB at bit more

Not sure how to link pictures. Is this some kind of cost saving measure by AnandTech not allowing uploaded pics? I guess they can save 10 cents in bandwidth, but at what cost to readership??

An hour of Prime isn't enough to say anything for sure, but good luck! If you can get it to be stable overnight, that's awesome.

 

[amenx]

I would be careful with the voltages, 1.4 vcore on a 45nm chip is not the same as with a 65nm. It may be OK, but more may not be. Dont know what the safe thresholds for these chips is, but will keep an eye on these threads as I may go for one as well.

 

[Xvys]

The cpu seems really cool. Orthos heated up both cores to 50C, but one core idles about 6C below room temperature. Perhaps Intel has finally perfected cold fusion? The other core idles at 34C, which seems more accurate. I got her up to 4410Mhz with 490FSB x 9...with a 10.7 sec. 1M SuperPi time...and that's with my ram at 980Mhz. It will go to 1300Mhz and with tighter timings. So the SP time can be lowered. Not sure about the recommended voltages, but it sure doesn't get hot. For everyday use, I have backed off to 4050Mhz with 1.375v after vdrop (1.4125v in bios) with reading 17/34C, cpu at 24C, mb 29C, hd 32C. But I see no reason why it won't run 24/7 way faster...and it will go way, way faster.

 

[Zenoth]

You should definitely take a look at this: http://www.ocforums.com/showthread.php?t=544212

 

[Tempered81]

yeah hes running at 500x9 24/7. I knew it would be possilble . 4.5ghz on air with super low temps and 1.51 volts

 

[Dadofamunky]

I think 4140 MHz is excellent. I'd do an overnight test on that first, then tweak it further each day until you reach your limit. Looks like the days of reliable 4 GHz OCs are finally here!

 

[Zenoth]

They definitely are with the Wolfies, provided you have a "better" air cooling, at least, if not water (to ensure that the risks are minimized as much as being affordable can be). But overall it seems that a minimum of 3.7Ghz OC is almost a guarantee (again, provided the motherboard and memory can couple with good OC's). If all the good hardware and cooling is there, I'd see no reasons why an E8400/E8500 couldn't do 24/7 operation at 4.0Ghz other than bad luck.

 

[error8]

These new chips are so sexy.

 

[nofferman]

Originally posted by: Xvys
SpeedFan does not show core temps and CoreTemp shows 15C on one core and 34C on the other. Under load the one core went up to 28C while the other did not move from 34C. So obviously some software upgrades are necessary before any serious o/c.

I'm seeing the same thing - both CoreTemp and SpeedFan show a temp on Core #0 that looks normal (~25C idle, ~33C load in CoreTemp) but Core #1 sits at either 31C in SpeedFan or 36C in CoreTemp.

The CPU temp in my BIOS (IP35-Pro v14) is also messed up - it's sitting at 127C (!!!). This doesn't move at all either.

Is my Core #1 sensor bad?

EDIT: I'm finding screenshots of people running E8400s and CoreTemp looks normal (here).

 

[XBoxLPU]

Originally posted by: nofferman

Originally posted by: Xvys
SpeedFan does not show core temps and CoreTemp shows 15C on one core and 34C on the other. Under load the one core went up to 28C while the other did not move from 34C. So obviously some software upgrades are necessary before any serious o/c.

I'm seeing the same thing - both CoreTemp and SpeedFan show a temp on Core #0 that looks normal (~25C idle, ~33C load in CoreTemp) but Core #1 sits at either 31C in SpeedFan or 36C in CoreTemp.

The CPU temp in my BIOS (IP35-Pro v14) is also messed up - it's sitting at 127C (!!!). This doesn't move at all either.

Is my Core #1 sensor bad?

EDIT: I'm finding screenshots of people running E8400s and CoreTemp looks normal (here).

Which version of core temp?

 

[nofferman]

will do, thanks. Didn't see anything in the v15 release notes about Penryn chips, but might be undocumented.


EDIT:
- IP35-Pro BIOS v15 and v16 Beta both fix the BIOS CPU temp issue.
- In CoreTemp v96.1(? not in front of that PC) My Core #1 sensor WILL start climbing if I get over 36C, and it appears to be with 1C of Core #0, so it'll work well enough.

 

[XBoxLPU]

He saids it fixed his

http://forums.anandtech.com/me...=2144245&enterthread=y

 

[aigomorla]

Originally posted by: Xvys
The cpu seems really cool. Orthos heated up both cores to 50C, but one core idles about 6C below room temperature.

Sorry you just YMMV'd the laws of thermodynamics. Thermo can never be YMMV.

There something wrong with your board/cpu/software. OR your running TEC's which you havent told us about.

Originally posted by: Xvys
Perhaps Intel has finally perfected cold fusion?

*sigh*

are you a noob ocer? I dont mean this the wrong way. But YMMV thermo + making this claim isnt something a experienced ocer would ever make.

AMD has fusion. And fusion is completely wrong in what your thinkn.

Unless your implying cold fusion as in energy cold fusion.... which then would cause intel to be the largest power company the world will ever see. [meaning it doesnt exist and is only in the movies]


You need to post pics to continue to validate anything you said. Your going to confuse the newbies in this thread like jaredpace who finally accepted realistic OC predictions. But now is blowing them up agian.

No Pics = useless thread.


NOTE: Sorry i may sound a little mean, but extreme ocing like this requires pictures and settingss displayed. You need to post a CPU-Z shot with a Prime95 25.3 @ 30min + for max temp delta, with CoreTemp .95

Your claims are getting too far fetched, and your comments are starting to sound funny.



Lesson on how to take a screen shot:
1. download a program like infranview Its free and easy to use.
2. Press Prt Screen on your keyboard for a snap shot [this copies your desktop]
3. open ifranview and paste and then use the tools to crop what you want to keep
4. save image file as .jpg and upload to a photo client.

 

[Tempered81]

Originally posted by: aigomorla

No Pics = useless thread.

Xvys's pics:

http://www.xtremesystems.org/f...173909&highlight=e8400

 

[aigomorla]

Originally posted by: jaredpace

Originally posted by: aigomorla

No Pics = useless thread.

Xvys's pics:

http://www.xtremesystems.org/f...173909&highlight=e8400

1.376v for a superpi run. That got 1

NO PRIME or ORTHOS.


Doesnt mean anything in aspect to oc. I can push my ES Q6600 @ 4.2 long enough for a superPI 2M run and 3dMark.

But when i put her on WCG or F@H she'll crash 2 min into it.

Hence why i said. no valid long term stress test = no OC.


also another reason why i never tell people i have 4.2ghz quad.

 

[Tempered81]

so if i run orthos on my 8400 @ 4.5ghz on air, its a verified oc?

how long is a satisfactory run? 15min 1hr 8hr?

Edit: NM I see in the other post - 7 hours +

I'll attempt and do SS

 

[aigomorla]

Originally posted by: jaredpace
so if i run orthos on my 8400 @ 4.5ghz on air, its a verified oc?

how long is a satisfactory run? 15min 1hr 8hr?

Edit: NM I see in the other post - 7 hours +

I'll attempt and do SS

pull that off ,and you'll get nothing but praise from me on your oc.

not being sarcastic. i'll really be amazed.

 

[aigomorla]

People on XS are having problems now with higher voltage.

Heres an Example from the link above:

"1.42v is nothing, I also tried 4350Mhz 1.456v ortho for 2 hours, too bad it bomded out, i thing the heat got to it, The cores hit 82 degreeC."




Smaller die area... means more heat concentrated on a smaller diameter = current sinks need to evolve. :X


Im guessing 4.0ghz is where the max safe point on air is on these chips.

 

[covert24]

when i get mine im not loking for some insane 6ghz 100% overclock. ill probably push it to about 3.8 and be happy. all i want is a faster chip than what i have now and the fact that i am getting a 8400 paired with a ip35 pro is more thn an improvement from my current rig.