E8400 Air cooling (4.5g 1.328V, 4.6g 1.4V, 4.7g 1.488V)

[erickwok]

My New E8400 air cooling test

Motherboard : P5K Premium
Ram : Corsair DDR2 800 CL3 1Gx2 (can run DDR2 1200 CL4445 at 2.45v)
Heatsink : Thermalright Ultra 120


since 4G is not a difficult job for most ocer
just start test superpi 1m from 4.5G

[erickwok]

oc more to 4.59G

[erickwok]

4.6G

[erickwok]

I don't want to kill the chip under air cooling
so just stop test at 4.7G
voltage below 1.5V

[dinos22]

that is one hot CPU

are you sure that is the REAL vcore
have you measured it with a DMM as your idle temps are scary high for the vcore used


what were the ambient temps???
with that sort of vcore i'm sure you could probably get the chip to do 4.8 or even 4.9 1M runs

max FSB?

[erickwok]

air cooling condition - my desktop

[PPInDaHouse]

that is one hot CPU

are you sure that is the REAL vcore
have you measured it with a DMM as your idle temps are scary high for the vcore used


what were the ambient temps???
with that sort of vcore i'm sure you could probably get the chip to do 4.8 or even 4.9 1M runs

max FSB?

my first E8400 was really hot too, even at stock volts the load temp was around 65c (aircooled by Tuniq, ~18c ambient)

[erickwok]

that is one hot CPU

are you sure that is the REAL vcore
have you measured it with a DMM as your idle temps are scary high for the vcore used


what were the ambient temps???
with that sort of vcore i'm sure you could probably get the chip to do 4.8 or even 4.9 1M runs

max FSB?

how to show the real vcore ??

use P5K premium cannot find the max FSB
later I will change commando to find out the highest FSB under air cooling

remark : I just use P5K premium with old bios 0404

[jaredpace]

Good job, congrats on the excellent clocks!

4.7ghz!

[erickwok]

Good job, congrats on the excellent clocks!

4.7ghz!

thank you jaredpace!

[dinos22]

how to show the real vcore ??

use P5K premium cannot find the max FSB
later I will change commando to find out the highest FSB under air cooling

remark : I just use P5K premium with old bios 0404

you'll need to measure it with a DMM
try the chokes around CPU socket or look up measurement points on the forum here.........i'm sure someone's posted screenshots of where they are

[dinos22]

my first E8400 was really hot too, even at stock volts the load temp was around 65c (aircooled by Tuniq, ~18c ambient)

and i thought my E8500 was a hot CPU LOL!

[jaredpace]

heres my 4.5ghz running prime @ 78C with 1.42Vcore [Ultra 120]

[had to clockgen up cuz my ST ram suxored.]

[MaSell]

Some time ago I tested one E8400, about 4GHz, 1.3v and 102'C . That was hot one

[itznfb]

that is one hot CPU

are you sure that is the REAL vcore
have you measured it with a DMM as your idle temps are scary high for the vcore used


what were the ambient temps???
with that sort of vcore i'm sure you could probably get the chip to do 4.8 or even 4.9 1M runs

max FSB?

i have a couple E8400's that idle close to 50c at al stock settings according to coretemp. i've checked it with a temp probe and laser and they both show approx 32c. i think coretemp is wrong and everyone that posted in that thread said i was an idiot for thinking coretemp was wrong...

[jaredpace]

i have a couple E8400's that idle close to 50c at al stock settings according to coretemp. i've checked it with a temp probe and laser and they both show approx 32c. i think coretemp is wrong and everyone that posted in that thread said i was an idiot for thinking coretemp was wrong...

most software reading temp data off the dts @ idle speeds would be wrong with current penryns. Accuracy @ load is more important, its either 60C in Coretemp or 50C in Realtemp. Only important data is delta to Tjmax which is given by the DTS anyway. Good to know that you were correct though!

9 times out of 10, High Vcore should be the main concern with the 45nm chips. (unless you're just a noob about cooling it) heheh

[TEDY]

batch?

[redratamd]

I received a Q750A151 E8400 ,no vcore needed .

On air with OCZ vendicator .Temp = 36° idle.
http://img381.imageshack.us/img381/4...reen116zt4.jpg
http://img512.imageshack.us/img512/5996/cpu4874tf6.png
http://valid.x86-secret.com/show_oc.php?id=346560
With watercooling.
http://img249.imageshack.us/img249/1130/cpu5002hi1.png
http://valid.x86-secret.com/show_oc.php?id=346655

But ,it's more hot than my Xeon E3110 with less Vcore.
My Xeon E3110 do 5GHz with 1.58V under water. And 3D bench @4.6GHz with 1.55V
I continue some tests and bench with this cpu.

[aoch88]

I think it's pretty common for E8400's to hit 4.5Ghz benchable. Unless we're saying it's stable at 4.5Ghz then it's something special. As for the temps, most of these CPU's often comes with a faulty digital thermal sensor so it is not accurate.

[dinos22]

heres my 4.5ghz running prime @ 78C with 1.42Vcore [Ultra 120]

[had to clockgen up cuz my ST ram suxored.]

what ambient temps are we talking about
this could possibly be one of the nest CPUs here



LOL Masell hahaha

[dinos22]

i have a couple E8400's that idle close to 50c at al stock settings according to coretemp. i've checked it with a temp probe and laser and they both show approx 32c. i think coretemp is wrong and everyone that posted in that thread said i was an idiot for thinking coretemp was wrong...

good on you for proving everyone wrong mate

it's very gratifying i'm sure heheheh

[M3kk]

Nice chip erickwok , please tell us the FPO .

[erickwok]

how about this :


4g sp2004 test

[erickwok]

and a short test at 4.05g sp2004

[inCore]

I am amazed erickwok, my E8400 needs 1.36 V for 3.8 GHz and I can't get it stable at 4 GHz with below 1.4 V. Right now I'm not willing to go above, unless somebody can convince me that it's ok to do so. Been having so many problems lately that I crave stability.