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Got mine today.
E8400 SLAPL FPO# Q748A102 pack date 01/04/2008
It's not one of the best, needs 1.36V for 4Ghz orthos stable but i reached my goal of sub 10 seconds:
http://img.photobucket.com/albums/v6...ory/1M9953.jpg
Unfortunately it took a lot of voltage, above 1.6V didn't help much though.
My cpu is on watercooling but gets even warmer than my E6600 B2.
I just want people to know that i have been running an E8400ES chip for 4 months now. And prime would fail this chip at 4ghz 1.45v after 11 minutes. no matter what voltage was set, it was just not stable at 4ghz Prime. BUT...i can play all newer game for a hole day without a crash at 4ghz 1.38v, wich would fail prime instantly. Actely i never had a crash at 4 ghz 1.38v no matter what i did. :)
So i think we must look into this. i think i remember that this happend with some AMD chips in the past??anybody remember that? it would also fail prime, but be rock stable for 24/7 use?? :)
Also i see these new E8400 retails doing 4700mhz on air, and 5ghz on Vapo LS. now my ES would only go to 4200mhz stable, but it did the same as newer chips on VAPO (about 5ghz) :)
I also got a retail today. This schip runs so hot. 70c on both cores at only 1.35v on WATER :( reseated the cooler 3 times...no luck :(
Judging from other results( altho I havent seen any 8 hours+ prime95 results so far ) this isnt idd a satisfying result. I will have mine 2morrow with exact same PFO....Quote:
Originally Posted by Zeus
Unfortunately I don't believe there is no one benchmark that will show stability 100%. I saw the same thing on the ICFX3200. Could run any stress test program there was with 3dMark looping at the same time for hours on end. But Prime would fail in under 3 hours.
I think the days of Prime stability ended quite a while ago. Not only is it no longer the definitive test of stability any longer but its extremely hard on the board and components to constantly be hammered like that.
Got a E8400 today purchased from zzf.
Core temp shows-vid=1.1000v-TjMax 105c
Box is marked,s-spec,SLAPL,fpo/batch-Q746A381
Pack date-01/04/08
Letting it prime at stock for now to let the tm paste settle in.
Will oc it later.
Quote:
Originally Posted by SIOUX
That's exactly what happened to me and my E6750. I could do anything at 3760Mhz at 1.57v. It would pass 1 hour of OCCT, run any game for hours without any glitches, compiled hundreds of programs, including the kernel (on my linux OS) and my max uptime was about 3 weeks or so. Prime/Orthos would fail after 40 minutes though. The hell with Prime/orthos as far as i'm concerned :up:
If you mean Prime95 , Orthos or OCCT , i do not know , i never kept my cpu other than default with C1E enable for 24/7, and i have a few ( E6600ES , E6600 , E2160 , E2140 , E6850 ) . I go higher as i can for SPI 1MB and 3DMarks .Quote:
Originally Posted by =[PULSAR]=
Well i got my e8400 and i will post some results but i cannot boot at 9x500 not even 6x500 it hangs at ram check i have the maximus formula. My ram runs fine at 1066 5-5-5-15 but i cant boot at 1000mhz ram. I know for sure it has to do with the divider or some sort. Maybe transaction or static read control. Anyone have an idea? Ooh and 1 core is hotter then the other when stressed they are same around 50 degrees
Q740A519
pack date 01/04/08
vid 1.05
cooling custom phase
24/7
http://www.imageshack.gr/files/a9wodsdfdtrraraio9v3.jpg
Spi 1m
http://img441.imageshack.us/img441/5503/1mfg6.jpg
Doom_St yes! That's what I like to see man. Now to open mine up and check it out.
Off to a decent start?Or maybe the end:shrug: .
Q745A372
Vid:1.0375
12/20/07
Water cooled
http://i126.photobucket.com/albums/p...otos/505x9.jpg
These 745 batches are really kicking ass it seems. You could squeeze more for sure @ 1.55-1.65v (if you got the heart for it ;)). Too bad my E8500 is probably gonna be a Q740 :(
Hope my e8400, that comes friday, is 745 :D.
Which are the better batches(beside 745)? I get two e8400, and i may choose the best one, but before i actually test them
Quote:
Originally Posted by barzi
I bet you're gonna get a 0748 like mine.
I got Q748A115
Will see what it does in a few hours...
Just an hour or so, but still going:
Q745A533 watercooling PA120.3, Fuzion, DCC.
It's summer in Norway ?:D . A little bit hot , don't you think ?
Kunaak... do some "user stressing" and see if you can corroborate what Sioux is talking about below... Interesting observations from both of you.Quote:
Originally Posted by Kunaak
Sioux... I can affirm that multi instances of prime95 would bork my e6400 in a heart beat, but Prime 95_25.3 (worker threads imbedded) and occt would run all day.Quote:
Originally Posted by SIOUX
I'm being an optimist here... Maybe the programs are the problem? Doesnt seem to make sense... as it stands though, usability trumps priming
Watching intently...
Danmoody.... take 20 minutes and learn Excel .... lol
Ambient is about 23.Quote:
Originally Posted by bonzo_catalin
Anyone with a DS3R tested one of these yet?
I'm thinking about picking up an E8400 and 2 more gigs of RAM...will having 4x1GB hinder my OC ability?
Hi mate,Quote:
Originally Posted by pcfreak
Going by memory, the Q744A needed less voltage than Q748A. But Q748A hit higher FSB and was easier to overclock on P5B-D motherboard.
Had very limited time with them, so I cannot give you anymore useful information than that.
I hope you get a good one.
just fired mine up tonight...almost 2 hrs priming so far...i had to bump the vcore up to 1.29 instead of 1.28 in screen shot..air cooled....50-56 load temps
http://i84.photobucket.com/albums/k2.../4kruninfo.jpg
what air cooling setup?
Noob question, .. but, which is better a "retail" E8400/E8500 or "OEM"?
Also, ... any preference for which chip E8400 / E8500 s the better choice? I would think teh E8400 because of price.
thanks
Damn. 2 guys with 4Ghz @ 1.28Vcore.
What batch do both of you have?
4GHz 1.224v with my 8400Quote:
Originally Posted by Mav451
FPO/batch: Q745A551.Quote:
Originally Posted by Mav451
thing i will run it at that 24/7, My Stupid P5B-D doesn't like anything over 445FSB with 4 dimms slot in use.
Haha, one thing to peak my curiosity - did you see the last 2 numbers on the bottom center of your chip? There's the boxy "bar code" symbol and then 2 rows of letters/numbers. What are your last two numbers on the 2nd row?Quote:
Originally Posted by icywater
sorry i did not read it, here is all i can do with 4 dimm slots :mad: .Quote:
Originally Posted by Mav451
http://img209.imageshack.us/img209/6164/dualpi32ko2.jpg
Heh shucks. I'm just looking for empirical data on the wafer #'s. We could (or I could) build a database :D
Mine is just bad I guess, gonna try some other stability tests, cant be right that I need 1.4375v for 4ghz too prime hmm.
/Grau
Mine would not even boot in windows at 1.288 volt 450x9. I have the 27/12/07 version with vid around 1.1115 or something. Have to look at it again.
Q748A115 -
4.5ghz @1.44v - http://valid.x86-secret.com/show_oc.php?id=302165
Did some superpi 1m and 32m too but I'm too tired to get it out there. For me, anually setting the GTL with C-N's formula worked. Still need to fine tune and get orthos stable at the right spot.
Where is that Intel link that states the max vcore and temps on thee suckers?
What is C-N's formula? :shrug:Quote:
Originally Posted by mrcape
Zeus m8 whats the max FSB your E8400 wil do on air or water? Thanks :up:
Q746A502 from NewEgg. Pack date 01/11/08. Needs 1.35v for 4 ghz Prime95. I'll be testing my Q746A381 later.
Got a Q746A381 Pack date 01/09/08. Not sure if I'm going to return it or not yet.
My Q746A474 Pack date 01/07/08 does 4.2GHz at 1.3Vcore. With a Vid of 1.100Quote:
Originally Posted by Tancoll
Wish i could get 746 here, they seem to do rather wel indeed.
Thats okey but I'm using a single stager so i prefer a really good CPU. :)Quote:
Originally Posted by X.T.R.E.M.E_ICE
Doen't your one do very well?Quote:
Originally Posted by Tancoll
540--no boot, 535--boot but windows won't load, 530--system reboots after 15minutes of Orthos.Quote:
Originally Posted by loc.o
I think 525 is about the max stable. :(
I'm really thinking about selling this one.
I sold mine. Im happy with my quad core :)
Thanks a lot for the info :up:Quote:
Originally Posted by davemelb
Why is this only a E8400/E8500 OC Thread?
here my first E8200 (Q745Axxx)
http://www.abload.de/img/prime-02zpf.png
Anyone with Q750A ?:confused:
Have you got one?Quote:
Originally Posted by Counter CS
What Batch is better Q745A or Q746A for E8400?
Wish i knew, i think they're about equal.Quote:
Originally Posted by mc2k
How's yours?
I'm going to try out mine when i get time.
Don't you have 10 minutes ?:D
Hi Zeus , didnt test it yet, still debating with myself untill tomorrow if I should test it or get another 1.Quote:
Originally Posted by Zeus
Me! :p:Quote:
Originally Posted by Counter CS
Able to post and boot (hangs before win logo)
at 4500 with 1.38 (maybe can do as well with less)
Appears the X38 boards are handling these chips a lot better than the P35 boards are, at least the voltage necessary to hit certain clocks vs. the voltage necessary on the P35. Looks like I may need ton invest in a new board.
Well I dont think so... It is the Cpu, every cpu is unique, so it differs from voltage requirement, untill some1 test a curten cpu head on head on a P35 and X38 and see, but I doubt it.
Stil no E8500 here in NL so decided to try an E8400 first. Only been looking for max FSB, no spi tweaks at all. Q746A328 stock air:
Asus Commando
E8400 stock air
2x1gb Ballistix
8400GS
OCZ 520w
http://img.photobucket.com/albums/v2...SBstockair.jpg
[QUOTE=Chri$ch;2722384]Why is this only a E8400/E8500 OC Thread?
here my first E8200 (Q745Axxx)
can you tell me the complete fpo\batch and pack date? and the cooling please??
thanks
hiya loco i have done the same i have an e8500 pre-ordered and got an e8400 which i should have tomorrow let us know the max cpu clock thats benchable on your chip please when you've time nice maxfsb , you'd like that with the 9 multiplier eh!:DQuote:
Originally Posted by loc.o
Nice FSB mate, did you max it out already?Quote:
Originally Posted by loc.o
Hey, it's just a way to calculate your gtl vs vtt. In a nutshell it's keeping vtt voltage low (1.2v in my case) and setting gtl to around 55 & 58% of vtt. I shouldn't have called it "his formula", but it's something he pointed out in the DFI P35 thread and I kept going back to it when trying to get the right settings.Quote:
Originally Posted by Zeus
I think it's too early to count on this thread as evidence of good and bad chips. There are too many variables - mb & bios, stress method, ram, cooling, sensor accuracy, software accuracy, defined stability. I mean, I can boot into windows over 4ghz at crazy low volts but is it stable? Even if you can do SuperPi 32m I'm not so sure.
I think we have similar batch numbers so i'd like to see what you get for results. I also have an X38 P5E that I want to test withn the week to get performance on X38 vs P35 with the same exact chip. Noone seems to have that data that I can find.
Final 24/7 oc. P5k deluxe,Q746A381,Pack date-01/04/08
Okay but what is it good for? Stability? I' ve kept those at auto, does changing these values do anything for running lower Vcore?Quote:
Originally Posted by mrcape
What is the best with this processor:
500*8 = 4000Mhz 1:1 mem=1000Mhz
or
450*9 = 4000Mhz 1:1 mem=900Mhz
?
Got a 8500 arriving tomorrow, it will have to be a good un' to replace my quad.
On the DFI boards the GTL values in and of themselves have no numerical value in reference to the percentage of VTT that is being set. For instance, if a value of 60 is selected for GTL that does not imply that is the percentage of VTT being set nor does that represent a discrete voltage value. The voltage value that will correspond to 60 will change as VTT is changed. At the same time whatever percentage of VTT the value of 60 represents will also change as VTT is changed.Quote:
Originally Posted by mrcape
As no accurate measurements have been done when using these processors on DFI boards to assign any type of preferred percentage based on the value selected for GTL is a bit premature.
10 minutes?Quote:
Originally Posted by bonzo_catalin
Takes more to change my CPU :)
Interesting. Any insight on why setting VTT low and GTL manually at about 50 - 60% of the VTT set in bios seems to help? It works for me.Quote:
Originally Posted by Praz
It seems to have done a lot for stability in my case on the DFI board. Leaving VTT high (like on 65nm) and the GTL at auto I would rarely be able to get in at certain speeds above 4ghz, regardless of vcore. With VTT low, and GTL set manually, I could get in and run stress tests. And as I notched the gtls down from there, the stability got better.Quote:
Originally Posted by Zeus
Batch: Q745A705 / Pack date: 01/11/08Quote:
Originally Posted by ztop
cooling by water, is a hot CPU (my E8500 ES dont go over 35°C load @ 4Ghz) :(
Mine seems kinda hot as well, in core temp 96.1 but moreso at idle end at around 42c. In the bios it reads really cool. I can't imagine it's this hot at idle with low volts like 1.29vcore. Then at blend load it never gets over 59c even up in the 4-4.3ghz range.Quote:
Originally Posted by Chri$ch
I think you missed the point I was trying to make. Run GTL values at whatever works. But at this point in time nobidy knows that the values being set on the DFI boards equate to 50 - 60%. By themselves the numbers have no significant value.Quote:
Originally Posted by mrcape
Got it, and thanks for the insight. Whatever the reason I'm glad it works! Did you get your chips yet?Quote:
Originally Posted by Praz
thanks... temp h2O?Quote:
Originally Posted by Chri$ch
I can boot into windows at 4.1ghz at 1.304v. This motherboard isn't reading my temps correctly at all. I am using the Asus P5E3 Deluxe. I reseated it 3 times and reads odd temps on both cores. I am using a Coolit Freezone cooler and heatsink is cold. My idle temps are averaging around 34C to 39C. My batch is Q746A519 and a pack date of 01/16/08 and a VID of 1.1000.
http://valid.x86-secret.com/show_oc.php?id=302461
http://img178.imageshack.us/img178/286/e8400pb5.th.jpg
I just got mine E8400 Q743A748, will post some results later.
Yeah. 746A381 :). Just got to find time to stick it in a board. Maybe tonight.Quote:
Originally Posted by mrcape
get it in
It's a bug. Mine always idles at 40C. Doesn't matter if it's at stock freq on stock voltage or at 4830 and 1.65v. Hopefully the coretemp guy will sort it out.Quote:
Originally Posted by mrcape
stable @ 1.275v
http://aycu22.webshots.com/image/415...9281944_rs.jpg
is this good?
Anyone help me ?Quote:
Originally Posted by yenclas
My temps at idle are 42ºC and full orthos 56-57ºC with TR Ultra 120
max fsb is better ;)
Any1 bought an E8400 from Newegg?
What batch did you get, and results?
It seems many E8400's have core temp sensors which report incorrect low temperature readings. These false readings are being reported in all software monitoring programs.
I had a E8400 which reported idle temps of 17C in one core and 34C in the other. Under load, the 34C core readings were frozen until it exceeded 34C.
I exchanged that processor a new one, albeit from the exact same batch, but the new cpu more correctly has core temps of 38C/36C (4.0Ghz with 1.34v).
Programs like CoreTemp read the diode right in the cpu, so software updates or bios upgrades will have no effect on these false readings.
Some E8400 purchasers are being told to just ignore these false core readings and instead rely on the "cpu temp" reading, rather than core temps.
Mine will run games at that,but not prime.What is your idea of stable?Quote:
Originally Posted by NapalmV5
My cpu temp at idle is 15ºC and two core temps 40-42ºCQuote:
Originally Posted by Xvys
With orthos core temps are 56-57ºC
This is on 500x8 = 4000Mhz and 1,344 vcore
Haha you mean stick it in.Quote:
Originally Posted by GLENBOY
I'm wondering - how hard is it to move your mobo, from one case to another, if I'm using a TR.120E? I can probably install tomorrow if I keep my old case, but if I order a new case, I'd have to wait - unless i'm willing to temp it in my old case.
Those temps seem similar to mine, yenclas. At 4.0GHz (445 x 9) my core temps read 38/36C, with the cpu at 28C. Under Orthos the core temps are 52/56C with the cpu temp at 46C.
I have the Extreme heatsink which may account for 2C extra cooling compared to yours. You also have to take into account your room temperature. In Canada my ambient temp is 22C, while in Spain your ambient temp might be 25C...so you are starting 3C higher and cpu temps will always be 3C higher.
I've got the same symptom - Core temp 42c on both cores at idle on - 500x8 4000Mhz and 1,3vcore. This is the same system that would be reporting about 20c per core at idle with the same volts on an e6600. I re-seated, and have two fat San Ace fans running through it with ambient temps around 12c (window open in MA).Quote:
Originally Posted by yenclas
Xvys' explanation helps. I'm wondering if I can trust the load temps and ignore the idle. Didn't somebody say they raised the max temp warning on these to 70c?
Thanks Xvys.Quote:
Originally Posted by Xvys
Seems to be normal temps. I was thinking that temps of 8400 were minor.
LMAO...Quote:
Originally Posted by GLENBOY
Quote:
Originally Posted by Praz
go go go Praz!!!
I am looking forward to your results and settings :up:
Quote:
Originally Posted by Bail_w
Mine is the exact same FPO/Batch#, Having problems on my DFI P35-T2R getting stable (4.5Ghz). Drop me a PM with your results as it would be fantastic to know how yours is doing ;)
I got mine there and look at my results above.Quote:
Originally Posted by Ad1tya
you don't want to be waiting tioll tomorrow with a new cpu on the table get it stuck in and give it some stickQuote:
Originally Posted by Motley
low 24/7 config with 24C room temp and rad fans at 1100rpm..
Q740A476T..
you always get the most out of your hardware giorgos , what the max cpu clock you've had what was 3d stable, i have an e8400 on the way and an e8500 on pre order no 8500s in the uk
i want to slowly stress this 8500....seems better than my previous 740A493...
i have it 4 days and max Vcore is what you see...1.32V..so far
4005mhz @ 1.232Vcore (previous 1.28V)
4100mhz @ 1.280Vcore (previous 1.33V)
4230mhz @ 1.320Vcore (previous 1.4V)
the V - clock scaling looks good to me..
Hi there,
Just assemble 3 times in a row my 8400 on a P5E with TU120 extreme: same core T readings idle @ 38ºC. CPU T (in CPUID) @ 24ºC. all at 1.2v
I do think, as mentioned, that those core T are false.
My e6320 in the same system, idle core T were @ 20sss (1.4v)