Stuck at 3.8GHz OC with the 965 C3 [4GHz OC now achieved] - Page 5

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I can't believe what I'm seeing. I'm currently at my known stable 3.75GHz OC with a 250 bus speed running Prime95, and I can't believe what I'm seeing - I can't say that enough either. Right now my CPU is at a temperature of 49 DEGREES CELSIUS!!!!!!!!!!!!!!! And that's while running Prime95, typing this, and uploading pics of my heatsink from my phone!!!!!!!!!!!!!!!!! My average temp earlier today was 62 degrees!!!!!!!!!!!!!!!!!!!!!!!!! It's down (pulling out calculator) 13 DEGREES!!!!!!!!!!!!!!!!!!! AMAZING!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I am so glad I made my self walk to Wal-Mart, then to Home Depot, then run across the highway twice while crazy NASCAR fans were all honking at each other and putting the "petal to the metal" like speed demons just to get to Autozone and get the holy grail of sand papers I was looking for (took me an entire hour to do all that as well)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!



Anyway, as you now know , I ended up lapping my heatsink to remove the black stuff on it. In case you're wondering I used grits 320, 400, 600, 800, 1000, 1500, 2000, and 2500. This took me like 4 hours (I know it's 2 for most people, but I'm slow so it takes twice as long lol) to do and I got the black marks off at the very beginning of it all, and now I have a mirror reflection on my heatsink. Here are the before and after pictures (taken from my phone):










Man, I still cannot believe this - the Arctic Silver 5 still has a break-in period too, so my temps might lower even more!!!!!!!! I'm so happy right now lol. This is insane, I had no idea lapping my CPU would make this big a difference. Just had no idea. Man, now I can't wait to try a 4GHz OC, haha heck I might even try for it now since I'm so pumped I can't fall asleep. Or I can just play some BBC2 and get frustrated out of my mind, I don't know yet, but I'll think on it.

From post #6:

Double Post:


I'm currently Prime95'ing a 4GHz overclock; all my specs are the same as my first post:

Bus Speed: 200
CPU Multi: x20
VCore: 1.5v

NB Freq: 2400MHz
CPU/NB Voltage: 1.15v
Chipset Voltage: 1.1v

HT Link: 2000MHz
HT Voltage: 1.2v

RAM Freq: 1600MHz
RAM Timings: 9-9-9-24
RAM Voltage: 1.5v
DC Mode: Unganged

At this point, 4GHz doesn't seem like the highest this can go, I'm going to restart my PC and push this thing to it's limits!!!!!

Oh btw, the max temp so far has been 58 degrees, so actually, I think it's close to it's limits haha, but I'm going to push it nonetheless.