Overclock i7 920 help (a worn-out topic, I suppose)
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Hello, hoping to give one last push to this 2009 machine, I have several doubts about overclocking. So far, I have been doing it through the EPU engine and raising it by barely 5%, about 2.9GHz. Even so, I doubt its effectiveness. In fact, I think it goes worse than in performance mode (normal).
Here are the questions…
1.- Does overclocking directly imply overclocking the ram? Let me explain, I have noticed that automatically when I raise it to 5%, the memories go from working at 667 to 690. With this, it often blows up and gets stuck. The memories are the normal Kingston 1333. If I think about doing OC, should I go for 1600 or 1800 memories?? I don't understand why :S
2.- In case it is not so, with my 1333, can I go up to 3.2 or 3.4, how do I do it?? I have read the tutorial a thousand times but every time I touch the BLCK, the memories change frequency and I am almost sure that is what makes my PC blow up.
Let's see if someone can help me out.
Thanks and regards! -
Set the memory timings to the minimum, you can give them 0.05 extra voltage (as long as it is not higher than 1.65), even relax a point in CAS (CL), RAS to CAS (tRCD), RAS (tRP) and 3 points in tRAS. With the memory at x6 (800MHz with serial base clock) you have to set the Uncore to x12. These settings will allow you to overclock up to everything the micro gives without needing to increase memory voltage or relax latencies, they will not reach 1333MHz. With the memory at x8 you will scratch a little performance but, with a base clock of 167 you will already be at 1333MHz, which would result in a CPU frequency of 3.3GHz or 3.5 if you have turbo with your motherboard (it gives you one more point of multi CPU, from 220 to 21). Fine-tune the CPU by passing the "Small" test of prime and when you have it you put yourself with memory with "Blend" test. If you have to relax a little base clock to be able to increase the memory multiplier to x8 do it, if you have to relax too much stay with x6. Up to 70º you can give it full throttle, if you want to force it no more than 80. If you have problems with temperatures disable Hyper Trhreading (HT). Go little by little with the CPU voltage, with the serial one (1.2) it should go up pretty well, you can give it up to 1.25 and if you want to force 1.3 but the temperatures must accompany. The best thing you can do is stop when you see that it starts to consume more than it should, which would be the tangent of the voltage/frequency curve. Disable C1E or Spread Spectrum, activate LLC so that the voltage does not drop with load and if you want block the PCIe to 100, if you do not understand much better not to touch it, the motherboard should do it automatically. For now do not mess with any other voltage that is not CPU or RAM. If you do not understand and it is not with some term that changes the name in different motherboards, you lack reading and paying attention to a good guide. -
Thanks in advance,
Following another post, I took those voltages as a reference and tried them out.
I ended up with 3.5, raising it to 170 and the memos to 680. With a voltage of 1.21v. I don't know if that's too much. First I tried with 1.225 as I had the other, but I saw that it went up to 65-68º, so I left it at 1.21.
On the other hand, after trying and playing. I see that there are points where it gets stuck. As if it's going to hang, but it doesn't. I don't know if it's because the hdd can't handle it.
I've lowered it a bit to 169, everything is the same, it stays at 3.5 and the memos at 670. I haven't touched the voltage of the ram.
I selected a type of memory and from there I started raising it from 100, first trying 200 (it bounced back) and from 100 upwards until I matched it with the ram.
I don't know if I did it right.
