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I wonder the same about P35 vs 38. I have tried everything with this chip and it needs a lot of vcore to be stable at high speeds. Like I said, >1.43v to get 4.2ghz prime stable.
So is it the chip or the chipset? Hmm, I have been tempted to pop this in the P5E but I want to return for refund so I dunno.
Aren't there some sponsored benchers out there who can confirm or deny the performance diff between P35 and X38 by using the same chip in two boards with settings as close as possible?
very nice what temps does it max out at high 50sQuote:
Originally Posted by Grnfinger
I have got the exact samme stepping as you, getting 4ghz primestabil is hard even with 1.45v on my GA-P35-DS3 board.Quote:
Originally Posted by Tom|Nbk
/Grau
that is a lot of volt to get to 4050Mhz, with that volt I got 4200MHz on the same board as yours.Quote:
Originally Posted by Tom|Nbk
well All CPU's arent the same ;)
core 1 is 59c core 2 is 57cQuote:
Originally Posted by GLENBOY
I hit 62-3 when the furnace is on
had a error on core 2 and had to up the volts to 1.47, looks promising this time around
yes Grnfinger its an excellent overclock that these new e series really rock and amazing value for the performance
no T on my Chip. I am from Australia.Quote:
Originally Posted by Retro
3DMark scores are down about 500 points compared to the quad core but for the $$ you are right an excellent value.Quote:
Originally Posted by GLENBOY
what will it do the 3dmarks at 4500mhz, thanks
Q746A349
VID: 1.0375V
Pack Date: 01/09/08
Cooling: water
Attachment 71446
very quick sepander nearly 5ghz on water:shock: , nice one mate again what will it do 3dmarks at, and what norhbridge volts did you use, i notice its a very low default vid as well good chip there
Thanks.
Here's some 3dmark results:
3dmark2001SE
3dmark05
3dmark06
NB voltage was 1.65V.
thanks sepander yes it seems you've got a golden chip there excellent 3d scores especially for single card and high cpu clock for the 3dmarks most seem to top out at 4650 with higher volts needed, i think the ones with the lower vid value like yours should in general go a bit further than the general ones which i think are 1.125 volt vid, i hope i am as lucky as you with the cpu i get monday
I just posted this on another thread so I'll just link to it.
http://www.xtremesystems.org/forums/...postcount=3467
E8400 @ 500 X 8 = 4GHz 1.4v in bios 1.425v in CPU-Z
Q744A761 / wafer 544 I think from memory!!
VID changes with different BIOS's
Water cooled.
How can you tell what is your Vid!
My box has a 1.225V max number next to the version is that the VID or do I look at the COREtemp program which indicates a 1.100V for the VID
E8400
Q750A039
prime stable 4284Mhz @1.46V @ Thermalright Ultra 120 (Coretemp shows over 90oC but I think it reads wrong)
Mobo Gigabyte P35-DS3 with vdroop mod
Max 1million pi calculation :)
http://img245.imageshack.us/img245/874/1mpize8.png
Does anybody have an idea of where the cold bug starts on these CPU's?
coretemp will display the VIDQuote:
Originally Posted by avrionis
1.1 nice VID :up:
YupQuote:
Originally Posted by avrionis
CN :)
Beaten to it, I'm slow...Quote:
Originally Posted by avrionis
Does not seem a great cpu! Can only go about 4.6 but with very high Vcore and my WC setup heats up past 65'ish! Also, Have tried to up the volts to 1.6 and I still cannot reach 4.7G
I am 4.3G Vcore 1.36 prime stable with 50ish & core1 56 core2 51 temps on load.
Prime stable how long? That's not bad compared to most.Quote:
Originally Posted by avrionis
Originally Posted by Grnfinger
I gots nearly the same E8400:Quote:
FPO/BATCH# Q740A553T
Version# E27439-001
Pack Date 12/20/07
FPO/BATCH# Q740A555T
Version# E27439-001
Pack Date 12/20/07
I wonder if anybody has a Q739 or earlier, or is Q740 the first run? I normally shop at NCIX, but I got mine last Sat. for $20 cheaper. A-Power exchanged my first E8400 with wonky temp readings for a new one from the exact same batch. Fortunately this one reads 38/36C at idle (4.05 GHz) and about 50C in Prime95.
Bios:
vCore: 1.35v
vDimm: 2.0v
FSB Term: 1.2v
CPU PLL: 1.4v
NorthB: 1.25v
All other voltages on Auto at 450FSB. I had it up to 4.45GHz with no problems, but requires too much voltage and heat for everyday use. Here is my 24/7 setup which is stable and cool. I wonder why my latencies are so slow compared to some others? I've tried upping freq. to over 1300MHz, but still 52ns is best it can do?
-----------------------------------------------------
Asus P5K Deluxe / E8400 / 2G Crucial 10th Anniv. / ATI 1950pro / Ultra120 Extreme / FSP FX600-E/ CM690
P35 does ok.Open window.Water cooled.dinos22,guess the ambient:) .
Abit IP35 PRO 14
4HRS Prime.
http://valid.x86-secret.com/show_oc.php?id=304246
http://i126.photobucket.com/albums/p...13x94hrsxs.jpg
nice one forsaken whats the fpo batch code again a low vid chip 1.0375 same as sepanders higher up
:rofl: :ROTF: How ya doing buddy? I see you beat my 4.608Ghz P95 run. Nice cpu you got there. :up: Let's see what the temp cops have to say about this one... :rofl: :ROTF:Quote:
Originally Posted by Forsaken1
Welp still working on mine Sadly only 6hrs prime stable at 1.304, almost 11 hrs before it fails at 1.312 trying 1.320 (1.34225 bios) now been going about 1/2 hr so far :)
this is at 450x9 for 4050 its it moves between 53C and 58C while under load core 1 is usually 1 to 2 degress lower than core 0 but core 1 seems to be the one failing Prime 95, kinda sucks as I guess heat isn't the issue in this case Its cold in Ohio today :) lol
Quote:
Originally Posted by GLENBOY
Thanks mate.
From Microcenter
Q745A372
12/20/07
Running prime at 523x9 4707.Almost a hour so far.Will update if/when i get to 4hrs prime stable.
Edit:Good buddy(zuck) and yourselfe?Thx for the volts tip.Just had to find some intestinal fortitude with uping the cpu volts.
You'll need to get better cooling to run at volts that high, then you can clock higher.Quote:
Originally Posted by avrionis
thanks forsaken keep us informed, it seems looking at this thread the fpo batch q745A ones all seem to do a bit better at lower volts as well and sepanders q746a oneQuote:
Originally Posted by Forsaken1
You're welcome. I'm tweaking for efficiency now at 4.5Ghz (9x500) for 24/7 on my Max Formula; numbers are looking good. :yepp:Quote:
Originally Posted by Forsaken1
Thanks for the info X.T.R.E.M.E._ICE:p:Quote:
Originally Posted by X.T.R.E.M.E_ICE
Guess that is enough from me about the "T" thing. Anyhow, I finally got my E8400 installed and I'm gradually bumping it up. Was able to get to 3807MHz on stock volts, now I'm having to bump up the juice to go beyond. Got a ways to go, 4GHz here I come.........................
Update: Now running @4050 1.328v still Prime testing.
maybe anybody can collect all results in the first post for better overview?
that would be great.....
agreed with batch codes , overclocks , benchmarks used for stability super pi, 3d etc and volts and cooling used that would be greatQuote:
Originally Posted by loopy83
Quote:
Originally Posted by lowfat
Quote:
Originally Posted by lowfat
I have the same Batch as you and im able to run it at 4ghz @ 1.35 vcore.
http://i74.photobucket.com/albums/i2...8/E8400P5K.jpg
see ?
most people running P35 need higher vcore for lower overclock :shrug:
Are you talking about my screen shot ?Quote:
Originally Posted by Supertim0r
I need 1.240v for 4Ghz P95 small ftts stable.Quote:
Originally Posted by Supertim0r
I have an E8400 but my VID is 1.1xxx VID which is a poor OC-er compared to some of us here which has 1.0xxx VID.
On a Foxconn Mars, I need 1.425V to get it stable at 4.05Ghz. This is terribly bad and can someone tell me if I'm getting this right?
Thats not true :cool: . I use 1.2v for 4ghz on my P35.Quote:
Originally Posted by Supertim0r
There's something about those Aussie chips:DQuote:
Originally Posted by X.T.R.E.M.E_ICE
:D :D :D :D :DQuote:
Originally Posted by Retro
Asus ? ...or DFI ?Quote:
Originally Posted by X.T.R.E.M.E_ICE
Asus P5K-E P35 4GHz 1.216v
Gigabyte P35 DQ6 4GHz 1.200v
I'm gonna use my good old P5B Deluxe mobo for my new, upcoming E8400, will see how it performs! I will go for 9*500MHz... :) The mobo can do 500fsb for sure, now its all up to wolfdale!
you guys are freaking lucky with your vcore. I dont know whats wrong with mine coz i need 1.35v just to boot 9x450 lol. Maybe i need to relax ram timings a little.
batch Q946A446 if i remember correctly
I have the same issue on my Foxconn Mars. My chip does 9 x 450 with around 1.35V. I believe some E8400 has higher VID that the others hence impacting the overall overclockability.Quote:
Originally Posted by Retrolock
Anyone else can confirm this?
Some are worse than others but I really gained a lot by messing with VTT and GTL settings.
You mean increasing the NB voltage and VTT would allow the CPU to overclock at a lesser Vcore? What's GTL? SB voltage?Quote:
Originally Posted by mrcape
have you tested it on X38/48 to see if there's a difference ?Quote:
Originally Posted by X.T.R.E.M.E_ICE
I had a X38 asus Maximus formula but sold it as it was a piece of crap to overclock, about 1 week before i bought my E8400. So no i haven't tested it on a X38. I will be testing it on a EVGA 780i on friday.Quote:
Originally Posted by rastaseb
anybody got any results for q750A fpo batch chips
Can anyone tell me if current mobos would report Wolfdale temps correctly? I'm getting 47C idle and 70C load on a Foxconn Mars
any good 8200 results ? like 4200 mhz ?
Check this out:Quote:
Originally Posted by vera
http://www.xtremesystems.org/forums/...d.php?t=174820
8x600fsb = 4.8Ghz :shocked:
Hi
Main just arrived E8400 Q744A698
And I've got problem.
I set up 400x9, Vcore default, MCH 1.33 and my PC don't wanna start.
It is post:CPU was changed and it is unworkeble - check CPU soft menu.
What it's going on- any ideas?
even when I set vcore 1.34V it's the same.
My Mobo - Abit IP35 - rest in my sig.
No, in my case lower VTT - 1.2v and low gtl settings - 60 59 60. That made things way more stable at high speeds.Quote:
Originally Posted by aoch88
What board are you using? I think you need a bios update, or worse, your board does not support 45nm cpus.Quote:
Originally Posted by Blackwhite
Edit: Abit AB9 IP35... hmmm, I'd check the bios version to see if it is listed as supporting 45nm cpus.
ok it is better now
I've got BIOS ver.14
It is working now 399x9 vcore 1.325 in BIOS and MCH 1.41v - Lets see what orthos say.
I've tried 445x9 1.425V in BIOS and MCH 1.45v but after 45 sec otrhos failed.
Strange is when I set vcore 1.4v in BIOS Abit EQ shown me 1.31v - it means 0.09 vdrop.
How you've set up voltages in BIOS?
Sorry for my English but I'm from Poland
And maybe it is important my VID is 1.0375
there have been many reports on degration on these wolfdales.... :X
*edit*
http://i46.photobucket.com/albums/f1.../4GhzE8400.jpg
FPO# Q746A495
Version# E27439-001
S-Spec: SLAPL
Pack Date: 09/01/2008
MM# 895733
I have all the usual things disabled in the BIOS, but when I boot at x9 multi it resets it to x6 once into windows, works fine at x8 multi as the above screenshot shows.
Decided to update the BIOS to the latest release 1302 and thought I had killed the board, finally managed to get it up again but still the same problem with the multi, guess I am going to have to wait for Asus to release an updated BIOS :(
Demon^
Where?Quote:
Originally Posted by mc2k
Yeah I'd like to see that too. Though sad, it would be helpful to see a record of wolfdales that died and what it took to kill them.
False alarms, far as I'm concerned.Quote:
Originally Posted by mc2k
I was thinking...my cpu never reads below 40c...
How is this gonna affect coldbug?
-31c outside, -46c with windchill...
How about other owners with T in FPO/Batch...what's the minimum temps you see?
time for outside benching!
I'm a T owner, and proud of it! It is near freezing in Vancouver, but it is nice and warm inside. Despite that my cores idle at 38/36C (450 x 9) and showed about 32C at stock...if you can believe CoreTemp.
steilos confirmed in this thread: http://www.xtremesystems.org/forums/...d.php?t=174821
that he and his friends tested like 8 cpu, and all showed degrations within days, 1 of them used only 1.41v, and some days ago i saw a guy talking about that his cpu was death in 6 hours with just like 1.45vcore....
I am abit skeptical about this, I have yet to see problems with f.e. Q6600s or nobody reports them, but in this short time after release there are already peeps reporting problems.. . altho is wont hold off my Wolfdale that comes tomorrow.
Ah well I think this is maybe abit to early to say tho, we need some time to figure it out....
mines dead i beleive. at stock i could boot fine then when i oc'd to 4.5ghz my fans spun up and then went off. back to stock and all is ok. oc again to 4ghz the same happens (fans spin up then off) so i just try upping the volts with no oc and BOOM..... psu explodes.Quote:
Originally Posted by mc2k
I've tried my e8500 in a D33FB intel board and when i press the power button i just get fans spin - fans off - fans spin - fans off... etc etc
i was only using 1.4v on the VTT - 1.4v CPU and 1.5NB.
i was running my e6600 @ 1.50000VTT - 1.6v. cpu and 1.6v NB before that for months with no problems so im ruling out any kind of other failure other than the cpu.
this all happened within 3 hours of putting the chip into my machine;
i've had to RMA my psu today and ive potentially got to warranty my board and CPU aswell as i have a scrambled bios error message :mad:
since i spent £200 on the e8500 i EXPECT that i can overclock without it blowing my hardware to hell.
Q6600s are 65nm while E8000s are 45nm.
fans spinning up and then off might mean the 4pin 12v connector is not powering up your motherboard, it's either borked or not seated correctly so making the mess.Quote:
Originally Posted by Origin_Unknown
Regards
Andy
its done it on a 8pin intel server (650w) psu and a 4pin connector one from a generic case in two different boardsQuote:
Originally Posted by zakelwe
My 8500 arrived today. It is a 745A and has VID of 1.000V
At 1.184v it will run Superpi32M at 4GHz which is good. Less good is that I am having to use my retail Intel fan as I broke my normal heatsink putting it on. Noob alert :rolleyes:. Also this P5K is struggling at 500FSB, it must think it is an nvidia 680i.
I think I am in for a long night ahead of struggling :(
As for the tales of death, well this is a new process. When chips are going out of the factory at 1v and you stick 50% more through then it might not be surprising that degredation is occuring. If you are benching for a short time then ok, if it is your main machine then you might as well play safe and stick with say 33% overvolt or less than 1.4v.
Regards
Andy
my vid was 1.1 i beleive... ima have to rma i feelQuote:
Originally Posted by zakelwe
Impossible.Quote:
Originally Posted by mc2k
Human error. Do not believe everything you read on the net.
Besides , you can damage a cpu even at stock volts if you do not know what you are doing. I say those guys are full of SPAM!!!
Seems like an awesome cpu Andy! :up:
My 8500 will probably here tommorrow so my 8400 can retire. :D
I never stated I did takes this for 100% granted like I said it is to early, but just want to shed some light on this, and yes user errors is surely possible!Quote:
Originally Posted by RedBull78
hrm... the side of my box does say something about 1.2v max
Time will tell.Quote:
Originally Posted by mc2k
So far noone has reported this degration on this thread and they've had their cpu's overclocked for atleast a week. So lets hope it stays that way.
1.225v to be percise.Quote:
Originally Posted by Origin_Unknown
So if you have a huge block of a heatsink +.15v should 100% safe as long as temps are under 50c all the time.
Quote:
Originally Posted by RedBull78
no one? have you not seen my post on the last page?
:rofl: Nice vid. on that cpu tho.Quote:
Originally Posted by zakelwe
For the record, I've pumped more than 1.6v into E8400 for more than an hour at a stretch. I have been running it at 1.4750v the last 48 hours. That says nothing, because all cpus are not the same. But it's too early to pin anything on voltages right now.
@origin_Unknown: The fact that your psu blew is all the evidence you need that your board was not getting the power it needed. Of course, a faulty psu is the best component killer.
Best thing is to ask more people how their CPUS clock after some days with 1.4 & 1.5V .Quote:
Originally Posted by RedBull78
Human error is 1 , 2... or even 3 CPUS ... not 8 from different experienced users.
:stick:
Mine too.
But i got it back stable...
Maximus formula SE...
I had to loosen transaction booster to 2 from 0.
UM....WTF!?! Never more than 1.425v, never been on air, this cpu.:ROTF:
:clap: Intel, :clap:
Quote:
Originally Posted by Zucker2k
its hard to pin it down to that since ive been running the e6600 with that psu for along time with more volts than i was using with the e8500.
im going to rma the psu and see what happens from there
this week i will have an abit IP35 mobo transcend axe 1200mhz memory and a 8400. you guys think this is a nice combination of my parts?hope i'll get the 4ghz. :d
Sweet, who will be the First to have a VID of under 1v :DQuote:
Originally Posted by zakelwe
PSUs don't just blow out of the blue, there must be something really serious... like an overload? My bet is that the cpu had nothing to do it with it unless there was less juice in the psu to provide enough power for those overclocks in the first place; this is 45nm afterall. :rolleyes:Quote:
Originally Posted by Origin_Unknown
I'd be worried about what version of bios comes on that IP35, if you are buying it new and have no older cpu at home.Quote:
Originally Posted by mysticwizard
Sofarfrome has one.Quote:
Originally Posted by CanadianTSi
anybody using setfsb/clockgen if so which version and what pll thanks
Quote:
Originally Posted by Zucker2k
it will be a new one... Is that bad? (i cannot follow :confused: )??
was my 850w etasis...Quote:
Originally Posted by Zucker2k
:censored: Were you there?Quote:
Originally Posted by RedBull78
modular, or no?;)Quote:
Originally Posted by Origin_Unknown
nope.... maybe split rail problem?Quote:
Originally Posted by cadaveca
No idea...would have to pull it apart and see what blew to have any inkling of an idea. But it's really hard to swallow it being the cpu @ fault, real hard.
I'm retiring my Q748A too. It's a lazy dog compared to the rest.Quote:
Originally Posted by Zeus
Yay for 8500 though!
omg some people are really weird, not satisfied with 8400 yet then need to get 8500. while some even can't get 8400....grrrrr
hah. Naw, I'm more than satisfied with it, I love these e8000 series, just want to hunt for a different one. This one will find a good home.Quote:
Originally Posted by TEDY