"Same here George :/ , 3 out of 6 cpus already died on me. First one at 1.92v. Running wprime 1024 at 5700Mhz on cascade -110c Load on Z87-Pro , screen went blank , code 00. Second died Running 3DMark06 at 5936Mhz in the second cpu test I got bsod then only code 71 on M6E @ -110c load 1.85v. Third just died 2 days ago running Cinebench 11.5 at 5.4Ghz at only 1.72v. -110c this retail cpus are very very fragile. Now im scared to push more than 1.76v on my good 4670K 6.2Ghz cpu , I don't want to kill it so soon , so far Retail Haswell not looking good."
"A friend has bought an 4770K and it's not doing more than 4.2ghz because it requires 1.28v and it start to throttle?"
"I think mine is heaving same symptoms as well ->71 and I only raised iod .270 and VCCIN 2.1 (first it was stable 32M (PSC)2600 tight and after first 71 code it wouldn't do it again with loose timings )..Haswell looks more and more like a FAIL"
"one of my best cpu is dead too , he died for no reason on phase , first code 40 and reboot cod 00...., i think intel is very happy with the haswell Rma rate=)))
if we remember at the past , before (2-3 monts)haswell launch..rumors that incredible arhitecture can hint on Ln2 8ghz and more..."
Well not quite sure, I just know that I set 2.5 input booted at 5Ghz, then while at -130c pulled raised vcore to 1.75v and started raising multi and when I got to x59, it rebooted and now it will hang on 71 if you try to oc, even 5Ghz, at any voltage. Flashed bios, tried more voltage for everything (pch included) at 5Ghz, memory at 2400. . . all result in hang on 71, pch initialization error I think as that is what is displayed on the OLED.
"I think something is damaging the DMI, because this has happened on another cpu on a different board, except the cpu would show 71, then reboot constantly while this one will run fine at 4Ghz but anything higher than that will not post. The other cpu I killed hung on 78 a bit different.
All ES cpu's are still alive and well."









