Calling all E8400 owners. I need to know your volts and temps.

[JC316]

I need to know what speed/volts/temps/cooling you are using. I am currently running 3.7GHZ/1.4V/65*C/H20-220 compact. I am wondering if my volts are a bit high due to the temps that I am getting?

[erocker]

Your volts are too high. Try running it at 1.3V's at that speed and check for stability using Orthos. Make sure the voltages on your motherboard and ram etc. are good too.

[Nitro-Max]

try 1.3v if the temps are still high check the NB voltage if thats high that can drive up cpu temps also

trog100 uses around 1.33v i think to get 4ghz

[Darknova]

3.3Ghz at 1.1v

[ghost101]

4.05ghz with 1.36v after vdrop and vdroop. Using AF7.

[trog100]

http://www.cavecom.com/pics/volts.jpg

http://www.cavecom.com/pics/volt-2.jpg

my actual vcore is .02 less than what u see.. there is a setting error.. my real 4 gig voltage is 1.333

the volts needed start to go up big time after 4 gig.. 4 gig is a sweet spot.. mine has been running for a couple of months at 450 x 9 giving 4 gig..

trog

ps.. i wont give my temp readings cos i dont think they are accurate.. but at 4 gig the chip runs nice and cool with an artic pro cooler at the volts i am useing..

[ThatGuy16]

I'm running 4.0Ghz with 1.248v on load, i think i got a good batch though :respect:

I think your volts are way too high

[JC316]

Dropped the volts down, MUCH cooler.

[3870x2]

4.0GHZ? I can do 3.8 with my E6750, you could probably take it up a notch, unless you are on stock cooling. I can do 4.01, but its not 24/7 stable.

[trog100]

I'm running 4.0Ghz with 1.248v on load, i think i got a good batch though :respect:

I think your volts are way too high

out of curiosity where are u getting your volt readings from.. is it a load reading from cpu-z.. ??

i ask cos its very low for 4 gig.. :)

trog

[trog100]

4.0GHZ? I can do 3.8 with my E6750, you could probably take it up a notch, unless you are on stock cooling. I can do 4.01, but its not 24/7 stable.

u cant compare a 65nm chip with the 45nm one.. the smaller chip wont stand the same voltage as the larger one.. there is lots of talk about too many volts degrading these chips.. how correct it is i dont know..

trog

[Grings]

1.34v core, 1.15 vtt for 4.05ghz here, and i dont know what to make of temps really, realtemp says around 45 load (after 2 hours or so), and my water pipes stay cold

[trog100]

1.34v core, 1.15 vtt for 4.05ghz here, and i dont know what to make of temps really, realtemp says around 45 load (after 2 hours or so), and my water pipes stay cold

at 4 gig and around 1.35 volts these chips run cool.. the temp sensors on mine are way out.. my hand tells me its very cool.. no sign of heat coming off the heatsink or fan air..

the mickey mouse stock heatsink intel send out with em also say "cool".. but it wont be temps that hold them back it will be how much voltage they will stand before suffering damage..

a new set of rules needs learning..

trog

[fitseries3]

here's a Loose setting for 4.32ghz on my e8400....

http://forums.techpowerup.com/attachment.php?attachmentid=13513&stc=1&d=1208016414

[ThatGuy16]

out of curiosity where are u getting your volt readings from.. is it a load reading from cpu-z.. ??

i ask cos its very low for 4 gig.. :)

trog

Its 1.28v in bios, 1.26v on idle in windows, and 1.248v on load in windows :)

heres a 4 hour orthos run: http://i151.photobucket.com/albums/s145/Coreyhm1/4hours2.jpg

[JC316]

Yeah, I forgot to add that when I was running 1.4, my mobo have a .5 volt vdroop, so I was actually running 1.35V. Currently, I am running 1.3V to get 3.9GHZ.

I am still not sure why my temps are so high, or if my program is even accurate. With the Q6600 is was the same as core temp, so I am inclined to agree with it. That and my waterblock gets pretty warm.

[EastCoasthandle]

Keep the voltage of the CPU below 1.45V (ftp://download.intel.com/design/processor/datashts/31873201.pdf) (Page 17)
When you compare that to the E6000 series they have a max voltage of 1.55V (ftp://download.intel.com/design/processor/datashts/31327807.pdf) (page 20)

[Xazax]

First off @ 3.7 1.4v IS WAY to much i have me E8400 running at 3.6Ghz all day on 1.17v
like others said try 1.45v(including the ~Vdroop amount to reach, mine is 1.5125~.6 Vdroop)
Secondly i have found many(try none besides benchings) that is worth the hassale of the Extra Mhz, i keep mine at 3.6Ghz 1.17v 24/7 and never have a problem but everytime OCing even though is passes Prime95 for hours i still find my system might randomly crash..

[JC316]

First off @ 3.7 1.4v IS WAY to much i have me E8400 running at 3.6Ghz all day on 1.17v
like others said try 1.45v(including the ~Vdroop amount to reach, mine is 1.5125~.6 Vdroop)
Secondly i have found many(try none besides benchings) that is worth the hassale of the Extra Mhz, i keep mine at 3.6Ghz 1.17v 24/7 and never have a problem but everytime OCing even though is passes Prime95 for hours i still find my system might randomly crash..

Yeah, I dropped that down to 1.3 and I am at 3.9GHZ. I like to push my chip and play with it. I will run 3.9 24/7, but I still like to try adn push the limits.

[JC316]

Just so you know, CPUID's HWmonitor is the exact same as coretemp 97. I am pretty sure that it's reading accurate. After my arctic silver set up, my temps went down a decent amount.

[DOM]

have you tryed real temp ?

[philbrown23]

I have mine at 4.414ghz/1.49 vcore/and real temp reads 48c load but my handheld infared thermometer reads 52c load, I believe my thermometer. I cannot get mine any higher no matter how little or how much volts I give it, I think I got a mediocre batch cuz it just won't budge not even 1fsb higher. my VID is 1.20 volts stock, and I have not encountered any degredation that has been talked about.

[JC316]

have you tryed real temp ?

No, where do you find it? A google search came up with nothing :confused:

Edit:
Nevermind, found it.

[DOM]

No, where do you find it? A google search came up with nothing :confused:

http://www.xtremesystems.org/forums/showthread.php?t=179044

[JC316]

Just so people know, this is where you find it. http://www.xtremesystems.org/forums/showthread.php?t=179044

[strick94u]

1.33 @ 3.972 ghz here temps run 26c-35c under a load real temps my tec has its own temp sensor have reaced 4.1 no problems but I am a realist I simply don't like pushing it that much.

[JC316]

Running 1.34V, 4GHZ, 48* load according to realtemp and 55*C load according to HWmonitor.

[JC316]

I am starting to think that the CPUID HW monitor is full of shit when it comes to temps. No matter what I do, it always idles at 41*C. At stock, or 4GHZ, it always tells me 41*C.

[trog100]

I am starting to think that the CPUID HW monitor is full of shit when it comes to temps. No matter what I do, it always idles at 41*C. At stock, or 4GHZ, it always tells me 41*C.

that is the chip sensors not working properly.. not software.. mine sits at 49C according to core temp with an artic pro cooler..

at stock speeds and voltage under full load it dosnt move.. it stays at 49C.. as the load and heat goes up with clocking it begins to move above the 49C..

my current bios and abit guru show it sitting at 30C.. the original abit bios showed it sitting at 4C.. he he he

basically they dont read any lower than a certain point.. the chips or at least some of them have cpu sensor problems..

intel dont care as long as they read the high temps and do the throttle down business if things get too hot.. the idle temp only matters to tweakers..

trog

ps.. basically my original abit bios showed my 6750 chip sitting at 20C idle.. the same bios showed the e8400 chip sitting somewhere below 4C.. it could just be that the 45nm chips simply run very very cool.. too cool for the sensors to work at idle heats.. abits answer is the alter the algorithm to read 20C higher which suits me cos my fan control now works.. a 10C jump between idle and load is enough to kick the fans up.. how hot or cool my chip really runs i havnt the faintest f-cking idea.. he he

it could also explain why intel send out such a half sized mickey mouse cooler with the chips..

[SirKeldon]

Soon i'll be adding my volts and temps, E8400 almost here! :D

[dadi_oh]

E8400 on ASUS P5K-E
Batch Q811A115. VID 1.1125

Running 490 X 8 = 3920 Prime95 24/7 stable
BIOS Vcore = 1.375V
Vcore load = 1.344V

[SirKeldon]

Well after a few days trying to manage a stable 4Ghz for 24/7 i think i finally did on "safe voltages"

CPU: 4050Mhz (450x9 - Batch: Q810A055)
RAM: 1080Mhz (5-5-5-15)
Vcore: +200mV @ BIOS - 1.39V @ idle - 1.36V @ load
RAM Voltage: 2.22V
NB Voltage: 1.42V
VTT (or FSB Voltage): 1.28V

Performed stability tests:

- Prime95: 4 hours of Small-FFT's (In-Place)
- Prime95: 4 hours of Large-FFT's (In-Place)
- Prime95: 11 hours of Blend testing about 95% memory
- Gaming for 3 hours @ Counter Strike Source + 3DMark 06
- An approach to 24/7 use (i got the chip past wednesday)

I'm adding a shot of the temps after 2:20h of Inplace Large-FFT's (i adjusted the TjMax to 85ºC according to the readings of the socket of my board ... by default it's 95ºC)

http://img.techpowerup.org/080609/E8400_4050_InPlace_LargeFFTs712.jpg

Tell me what you think :toast:

ps: Though i'm satisfied to could run 4Ghz @ 24/7 ... i'm having some problems tweaking the BIOS to get 4.3-4.4Ghz for benching due to the Vdroop or maybe other things ... i'll keep trying