Another google search and what the user did about his temps on E8400 >>> It seems that many, if not most Wolfdales have flawed core sensor diodes which give false temp. readings, especially at idle and low temps. Many E8400 have "stuck" cores which show much higher idle temps in one core than the other core. That stuck core temp reading only becomes "unstuck" when temps exceed that frozen mark.
Some Wolfdale's are also giving false core LOAD temperatures, which is troubling, especially if you have a temp controlled fan setup. These processors are flawed and probably should be returned (unless it's a great o/c'er). The cpus which have only the "idle temp bug" are probably not warranted a replacement. E8400 owners have been told by some retailers to ignore their core temperature readings as only the cpu temps are accurate.
I don't believe this is a motherboard issue and can be be fixed by an bios update. CoreTemp reads the temp readings right from these core diodes, regardless of the bios.
My first E8400 had 17/34C core temps. Under load, the lower core would increase in temp to match the other core, then they would both go up in unison from there. But what were the real temp readings? I really doubt that one core was 17C (7C below room temp?)
I took that cpu back to my local retailer and he exchanged it without question...with another cpu from the exact same batch! The good news is my new cpu reads 38/36C at idle (4.0GHz) with 47/52C load temps, which I can only assume are more accurate. Edited: 01/29/2008
No board change, no bios change just cpu change. Some QX9650 have had same type issue. Ace-R-Rue had one of those high-dollar problem ones with temp issues. But for that money they likey may have less problems.
I ordered E8400 mini-thing since E8500s are vaporware where I order from and will see if I am "lucky" or have shett for luck as is sometimes the case.
Reply With Quote
Bookmarks