Saturday, February 2nd 2008
Overclockers Worldwide Report Heat Problems With Intel Core 2 Duo E8400
Basically, there's not much more to this story than the title: the E8400 series of Core 2 Duo processors might have a heat problem. A consensus among the more daring overclockers is that the thermal diode on-board these processors is very far off from the actual temperature of the processor, tricking overclockers into not giving the CPU adequate cooling, and tricking the motherboard into not turning the fan speed up high enough (if the CPU fan speed is controlled by the motherboard). Intel denies all of these allegations, and their very detailed response can be read here.
For any of you getting an E8400, make sure to give it proper cooling, and to not let it go above 72.4 degrees centigrade.
Source:
The Inquirer
For any of you getting an E8400, make sure to give it proper cooling, and to not let it go above 72.4 degrees centigrade.
25 Comments on Overclockers Worldwide Report Heat Problems With Intel Core 2 Duo E8400
should i believe coretemp or should i believe my bios.. or more probably should i believe neither..
trog
Well, they had to hit a threshold somewhere, they cant just keep getting faster, until they make em outa fiber optics somehow.
abit guru and my bios.. e6750.. at stock.. 18 C idle 38 C load.. artic pro cooler
abit guru and my bios.. e8400.. at stock.. 4 C idle 4C load.. artic pro cooler..
now lets assume by bios reads 20 C lower than reality.. which i think it does.. lets add that missing 20 C
e6750 idle 38 C.. load 58 C..
e8400 idle 24 C load 24 C..
but my bios dosnt read minus figures it locks at 4 C.. the 4 C idle aint really 4 C its way below that.. at stock speeds and voltages my e8400 dosnt even budge over the idle 4 C even under load with the artic pro sat on it..
at first i thought my bios didnt read the chip.. but with tons of volts thru it the temps start to show.. it actually moves from the 4 C at idle to about 24 C load..
which if my conclusion are correct is still over 20 C cooler than my e6750 chip.. which when clocked read 42 C
so i recon ambient at idle.. 20 C over ambient under full overlocked load..
but thats just my conclusions from my chip and bios readings..
trog
ps.. coretemp follows the same pattern.. reads 47 idle to 52 load at stock but goes up to 70 C fully clocked and fully loaded.. i recon reality is somewhere between coretemp and my bios readings
the main point being these chips run that cool at idle nothing reads em properly.. coretemp wont go lower than 47 C and my bios wont go lower than 4 C
I hope they do fix this.
post
So yeah i am kind of pissed about that but on the other end, the CPU has no problem reaching the 4.5Ghz+ and could be stable if it stayed cool. Like getting a 700$ Vapochill,grrr....
Just kinda frustrating after seeing all those reviews saying the 8400 runs so cool, like 10 °C less than the 65nm like the 6750.
Yeah right....
So yeah this CPU has a huge overclocking potential (i could go much further but limited by RAM) but you need just need to keep it cool.
I haven't OC'd it yet :D
EDIT:
when OC'd to 3.6GHz (9x400), the temp moves to 26C idle.