Can anyone prove an 8hr Orthos Screenie of 4.5ghz on air with a retail E8400?

[JAG87]

You did look at my sig, did'nt you ? Running phase, i have only just started this clock. As it happens my mobo has NO vdroop (not untill about 1.6v anyway). My vcore is as in the screenie, 1.488v.

Ah, touche'. Didn't look at your sig

With phase you will always get about 300-400 mhz more than air or water, and you can also push a bit more voltage without having to worry about temperatures. Not that it's safe, but there will be no degradation due to heat, so your processor life will be significantly longer than if you were running 1.5v on air. A good general rule is +15% vcore for air/water, and +25% vcore for phase. But just FYI kitfit, the OP is interested in air/water capabilities, I dont think the OP is interested in phase results since he doesn't have sub zero cooling.

[Zeus]

Using phase is cheating. :P

4.0-4.2Ghz is more realistic on water/air for 24/7.

[Bail_w]

Remove the IHS then you can get 4.5ghz 24/7 on air/water

[LowRun]

Some peeps really are full of crap Never mind when half term is over you can go back to Primary school.

Anyway, not an 8400, but it is stable. Orthosing at 4.7ghz now.

How rude for someone who couldn't even read the first post correctly, it's about air cooling dude.

Primary school time for you maybe?

[Zeus]

Here's something i found on a German forum:

E8400 on watercooling: http://www.abload.de/img/45941456tiv.png

E8500 on watercooling: http://www.abload.de/image.php?img=4...mprimesw68.jpg

4.5GHz stable on watercooling is not impossible, just very difficult.

[Jeremy617]

This is what I'm running 24/7, even if the chip does die in 6-8 months, it was only $220, no big deal.

CPU-Z voltage is wrong, I might do 8 hours prime later but theres not much point, I've been gaming with this for 3 days now and haven't had a crash.

*** THIS IS ON WATER THOUGH ***

[kitfit1]

How rude for someone who couldn't even read the first post correctly, it's about air cooling dude.

Primary school time for you maybe?

You are correct and i appologize unreservedly for posting when i had'nt seen "on air".

[Praz]

Intel says 1.45v max in their white paper.

If a manufacturer's specifications are going to be quoted they should not be done so out of context. Your statement gives the impression that Intel is setting 1.45V as a safe operating limit. Nothing could be further from the truth. The voltage you quote is the maximum limit they put on the processor before immediate and irreversible damage might occur. Processors run below that voltage but above that specified for the them are just as likely to suffer the same fate over a period of time. And for a lot of us it makes no difference anyway. At the price point of these processor they're almost throw-away.

[JAG87]

If a manufacturer's specifications are going to be quoted they should not be done so out of context. Your statement gives the impression that Intel is setting 1.45V as a safe operating limit. Nothing could be further from the truth. The voltage you quote is the maximum limit they put on the processor before immediate and irreversible damage might occur. Processors run below that voltage but above that specified for the them are just as likely to suffer the same fate over a period of time. And for a lot of us it makes no difference anyway. At the price point of these processor they're almost throw-away.

What you said is exactly what I meant. You just used more words, while I'm lazy

The point is that, 1.25v and below you are in the green zone, 1.45v and below you are in the yellow zone, anything above 1.45v you are in the red zone. Green zone = way more than its useful lifetime, yellow zone = enough to outlive its useful lifetime, red zone = might make it, might not.

Thats my interpretation.

[WRC]

Remove the IHS then you can get 4.5ghz 24/7 on air/water

does intel still solder the IHS to the cores? this is very stupid on their part

[Zucker2k]

does intel still solder the IHS to the cores? this is very stupid on their part

Be glad they do

Here's mine on water:

[Jeremy617]

Be glad they do

Here's mine on water:

Those temp readings have got to be wrong unless thats on like 6 100+cfm fans.

[Zucker2k]

I have 11 120mm S-Flexs, 2x120mm rads, 1x240mm rad - all in push-pull configs with window cracked in cold Michigan.

[Jeremy617]

Still, its pretty widely reported that core temperature readings on 8000 series are borked, theres a thread about it in the news section.

My core temps are stuck at 38c all the time, CPU temp in asus software is the only one i can get a reading from, and its 50c @ only 1.44v. With 9 fans and only the cpu in the loop, guarenteed my cores are probably 60-65.

[dinos22]

Those temp readings have got to be wrong unless thats on like 6 100+cfm fans.

yeap
got zero or subzero air pumping through the windows

why bother priming is beyond me

it's like priming with dry ice or LN2 which is pretty stupid LOL

[Forsaken1]

Come on dino,you have a hard on for zuck or what?Different strokes for different folks.This is XS,where we push are equipment with what we have.

Cheers

[Zucker2k]

Come on dino,you have a hard on for zuck or what?Different strokes for different folks.This is XS,where we push are equipment with what we have.

Cheers

Thought I was done with this temp. police.

[dinos22]

ROFL

the guy creates a thread and claims he did those clocks with 25C ambient so i point out to him that it isn't possible unless the temp controlled is bugged

next post if his says he has a window open close the the rig with zero temps coming in the room which means he is getting zero breeze hitting his rig

now i have no problem with that at all believe me. What i have a problem with is that he is posting prime results of his chip showing off how good it is......but fails to mention it's been done with zero ambients near his rig

try doing that at proper 25C ambients with your case under the desk closed and all....hell that's what prime is for right....finding stability for your 24/7 rig for benching i never use prime.....nature in '01 and '03 is enough to give me a rough idea where i'm at

why would you prime at those temps as you will never actually run it other than that one instance

this thread is about a retail CPU doing 4.5GHz prime on air (not subzero air) but your normal room temp air. So why do you come in and pretend it's a super chip when in fact it isn't. You CPU is nice though no question about it but geeez mate show the guy what the CPU can do on air or your water rig in normal 25C ambient it would be in and i'm 10000% sure it will not do those clocks....you will probably have to drop it down a couple of hundred MHz

have a look at Michigan forecast temps to get an idea what he's getting through the window
http://www.usairnet.com/weather/maps...n/temperature/

[jaredpace]

so 4500mhz 8hrs prime on air = not possible?

[dinos22]

so 4500mhz 8hrs prime on air = not possible?

it is possible but why risk killing the chip prematurely

this is pointless

that Zucker chip with proper ambients and higher vcore would prime at 4.5GHz on water i'm sure but i wouldn't run these chips over 4GHz as there is really no point

[turtletrax]

ROFL

the guy creates a thread and claims he did those clocks with 25C ambient so i point out to him that it isn't possible unless the temp controlled is bugged

next post if his says he has a window open close the the rig with zero temps coming in the room which means he is getting zero breeze hitting his rig

now i have no problem with that at all believe me. What i have a problem with is that he is posting prime results of his chip showing off how good it is......but fails to mention it's been done with zero ambients near his rig

try doing that at proper 25C ambients with your case under the desk closed and all....hell that's what prime is for right....finding stability for your 24/7 rig for benching i never use prime.....nature in '01 and '03 is enough to give me a rough idea where i'm at

why would you prime at those temps as you will never actually run it other than that one instance

this thread is about a retail CPU doing 4.5GHz prime on air (not subzero air) but your normal room temp air. So why do you come in and pretend it's a super chip when in fact it isn't. You CPU is nice though no question about it but geeez mate show the guy what the CPU can do on air or your water rig in normal 25C ambient it would be in and i'm 10000% sure it will not do those clocks....you will probably have to drop it down a couple of hundred MHz

I have to agree. I have heavy water (Fuzion/HE 120.3 w 6 fans and shrouds/DDC2 topped) on a dedicated loop, with sub 20c ambients and at 4.3Ghz (1.4v) I get mid 60's centrigrade. This is with multiple mounts and MX-2 TIM and everything else I can think of.

[Forsaken1]

Agree dinno,i noticed alot of cpu's clocked hi.....But you see no temp program in ss.Over clockin is only about 2 things.Quality components and heat removal.

[Zucker2k]

Read JAG87's post at the top; hell, here is a quote:

But just FYI kitfit, the OP is interested in air/water capabilities, I dont think the OP is interested in phase results since he doesn't have sub zero cooling.

And I clearly stated that this was on water. As for the temp. forecast you posted for Michigan, the priming was done on the 01/26/2008, and the picture was pulled from a thread I started on it; here:

http://www.xtremesystems.org/forums/...d.php?t=174834

So don't try to fool anybody; you don't fool me. I'm all about my hardware and not speculation because speculation is the easy part. Unlike you, I won't show a sub-10 minute P95 run as proof my chip would do 4Ghz at 1.232v. Like I said in that thread, I had my shirt of while doing that bench session because the heater is less than 12 inches from the back of the computer... blah, blah, blah.

Am I the first overclocker who runs prime with an open window in the middle of winter? All you have to do is do a little browsing of the forums and you'll see a lot threads with open-window benching, and so forth. Stay of my back.

[stone_cold_Jimi]

Well give us another run with the window shut then lol.

[aoch88]

Looks like we have some E8400's @ 4.4Ghz stable
The rest are pretty common being stucked at 4.2-4.3