Honestly, a lot of chips I tried were like yours, but bumping the voltage made a big deal in stability. Even though it needs 1.2v for 42, it might be able to do 47 with 1.4...there is no magical standard of +x voltage for each step and it is more of a curve. Try finding how high it can go at...
I haven't had a chance to try a different thermal paste, but I have direct setup right now successfully. You are correct with the error 55's... but it wasn't hard to get it mounted... some scotch tape to hold the CPU in helps. As I said previously, it is running at 45c average/ 61c spike with...
Update:
I installed a custom water look using EK products (Supremacy block with delidded direct die mount kit) and a custom water reservoir (5 gallon bucket) rad (passive copper coil...may use a chiller, but am afraid of condensation).
Results? At 1.375v/4.6GHz the average CPU temp is at...
For $10 + the 25% discount I got, it was no brainer to get the ACX edition. I didn't plan on water cooling them, but now I am tried for their droning whistling sound.
To anyone curious, seems the ACX are reference design with a different cooler... so yea it should fit. I ordered 2 EK water...
If that is stable for 24+ hours on AIDA64, that is a nice chip. Dozens of chips and 1.25v for 4.5ghz was the best I could find that was stable. Of course, many boot at that voltage, but basically none are stable.
You could probably do 4.6ghz at 1.35v and temps should be doable if you got a...
I delidded the original cpu in the first post!
Results in one word? Surprising. In short, there is a ~10c drop in temps on longterm averages and ~20c drop in spikes! I used Arctic Silver 5 on both the die and the Corsair H110 block. The MAX spiking temp is now 72-75c (one core goes to 81) using...
Well looks like I am going to settle for a 4.5ghz overclock. From all my tests, anything past this isn't worth it because you must exponentially increase voltage/heat in order to achieve a stable overclock. It doesn't make sense too... a chip can be stable at 4.5ghz/1.25v, but then require +...
Okay so after a lot more longterm testing, this chip requires 1.41v to be 100% stable at 4.6ghz. The temps are decent at this voltage, but anything past it I don't think is worth it.
Ever since BIOS update, stability seemed to have increased, but long term testing still leads to crashes...
Running 2 hours stress teat, seems this chip is stable at 1.45v 4.8ghz and the lower temps make it doable . Oddly, the temps are under 80c, but peak at 95 rarely. The original chip was similar, but at 1.375v and 4.6ghz...doing 1.45 resulted in unworkable temps on a Corsair h110. Oddly, core 4...
Update:
I tried 2 more chips...both Costa Rica and the same batch number. I am a bit confused... One of them, couldn't boot at 1.375 4.5ghz, but the other is running a stability test with really nice temps at the same voltage, but 4.6ghz. This chip's temps are 10c cooler than the original chip...
1250 oc with 1.2v here with 2 780s sli. It was really easy to do and did give a nice boost...Could go higher maybe, but i dont see the need. Went from 20000 to 23000 in 3d mark firestorm and a good noticeable fps boost. Though they got hotter, Heat doesn't seem to be an issue...I question the...