Data from my first overclock: 17 920 D0 to 3.8ghz. Opinions pleaseeeee

[Maegirom]

Hello.
I've just started with overclocking. My equipment:

Intel i7 920 D0
ASUS P6x58D Premium motherboard
Noctua NH-D14 cooler
Memory: G.Skill Ripjaws 3x4gb (triple channel) PC12800 1600mhz CL 9 9 9 24
ASUS GTX680 direct cu2 top + gigabyte gtx680 windforce oc in SLI
Cooler Master HAF-X case
Corsair AX860 (860W) power supply

To the point:

I've done an OC to 3.8 ghz with the following data:
BCLK 200 and multi x19 (3.8ghz). The memory stays at its speed (1600mhz)
V core: 1.225 in BIOS although then in windows the CPU-Z shows me 1.216 (I'll talk about this later)
Uncore frequency 3208mhz (double the speed of the RAM)
QPI frequency: AUTO
VTT (QPI/DRAM voltage): 1.22v
PLL: 1.8v (default)
IOH: 1.18v I've increased it a bit for the SLI issue
ICH: 1.10v (default)
VRAM: 1.5V (the recommended for my RAM model)
CPU differential amplitube: I know they say it's okay to set it to 800mV but I left it on auto (disabled, I think), because I also activated the LLC (LOAD LINE CALIBRATION)
Power saving is activated with Intel speedstep and C1E. C-State is disabled because I realized I already had it disabled and I've been using it like that for years. So it's better to leave it as it was...

TEMPERATURES:
At idle, the cores start at about 34º and TCase (processor casing temperature) at about 26-27ºC

After 4 hours of stress with prime95 in blend mode (round checking off) and 4 hours in SmallFFT mode, the highest peak was given by core1 at 72º, although it was something punctual, almost all the process the cores stayed at about 68ºC
The TCASE at full load gave 52-53ºC

NOW, CONSIDERATIONS.

First the voltage. It gave me vdrop, because in bios I set it to 1.225 and in windows both cpuz and aida64 gave me 1.216. Which seems strange to me since the LLC was activated, isn't its function exactly to correct vdrop? And this discrepancy, is it a reading or is it real? That is, was it at 1.225v but reading 1.216 or was it really at 1.216?

Also, the voltage is the same all the time both at idle and at full load. I thought that at idle it should lower a bit due to speedstep and C1E. (Before the overclock, this was the case, I had less voltage at idle than at full load)
The frequency does lower. At idle it goes to 2.4ghz and at full load to 3.8ghz, but the voltage doesn't change. Is this okay???

THE TEMPERATURES, how do you see them? Can I fine-tune them somehow? Really these OC values are the first ones I put, I haven't tried yet to lower vcore or anything. Do you think I can take it lower and this will lower the temperature? Are these temperatures safe for 24/7 and that my processor will last for years? And when summer arrives, will I have to push it a little less?
On the other hand, the fans of the noctua, they gave me 1430 rpm constantly, both at idle and at full load. Is there a way to set the fan in a "smart" way? That without load it goes slower and with load faster... I really wouldn't mind if they went a bit faster (at full load) since they are quite quiet and with the SLI and 5 case fans I'm used to the noise jajaja.

Well, that's all (I think) sorry for the long post. OPINIONS PLEASE.

THANKS.

UPDATE: I've passed a 3dmark fire extreme NORMAL and a 3dmark Fire strike EXTREME.
In normal it did give me about 1000 more points, but in extreme only 180 more. I don't know if this is normal.

EXTREME: Result
NORMAL: Result

In the left column is the profile WITH OC and on the right WITHOUT OC.

Obviously the biggest improvement is in the physics test, but there's something that bothered me. If you see in the statistics the processor speeds, in the right column (NO OC) it says stock speed 2,668ghz and turbo speed 2,806 ghz. While in the left column (WITH OC) it says stock speed 2,533Ghz and turbo speed 3,8ghz. Is it normal that it shows less stock speed with the overclocked profile? (although then it does show 3,8ghz as "turbo")

Thanks again.
Best regards.

[fjavi]

Alright, the voltage thing is normal, I have a P6T deluxe and it does the same thing, it shows a little less than what I put in the bios, although a rampage III puts in a little more, but that's because it has three LLC modes, extreme mode puts in a little more than the bios voltage.

I have to raise my QPI/Dram a bit more to 1,268v, with latencies at 9-9-9 at 7-7-7 I have to raise it to 1,287v, I set the PLL to 1,88 and the IOH to 1,20v, I set it the same on two CPUs, one is at 4200 and the other at 3800, the latter is worse, it's C1.

I wouldn't worry about the temperature, the C1 I have seen it go over 85º with those torture tests and that CPU is already years old, the other one is hotter even though it's overclocked more, but for a 920, your temperature can be considered good, you could try to do 4000 or 4200 by disabling HT and putting a little more vcore, depending on that CPU.

Don't pay attention to 3dmark because it tells you what the CPU is like in series, you should look at CPU-Z and it will tell you the real frequency.

regards

[Maegirom]

Thanks fjavi. I feel a bit more at ease. Anyway, I will try to fine-tune the vcore a bit more. Let's see if it can hold 3.8ghz at 1.20V. (Although it's a pain to run tests again now that it's stable lol)
I don't feel like raising it more, I really don't need it and I still have to use this computer for a few more years.
Thanks
Best regards

[fjavi]

@Maegirom:

Thanks fjavi. I feel a bit more relaxed. Anyway, I'll try to fine-tune the vcore a bit more. Let's see if I can keep 3.8ghz at 1.20V. (Although it's a pain to run tests again now that it's stable lol)
I don't feel like pushing it higher, I really don't need it and I still have to use this computer for a few more years.
Thanks
Best regards

It's easy, you already have stable values, save it in a bios profile, an OC profile, just lower vcore point by point, when it doesn't hold up, then increase it.

I've had a 920 with OC since day one for 4 years, those voltages you have are safe, you're not pushing the CPU too much, I sometimes put one at 4400, with 1,31v which doesn't seem like a risky voltage to me, although normally it's at 4200 with 1,267v, it's been like this for years at 4200, for a D0 3800 with that voltage it's safe.

regards

[Maegirom]

And what temperatures do you handle? I say this because if you have been using OC for years, I can get an idea of the "durability" hehe
Regards

[fjavi]

@Maegirom:

And what temperatures do you handle? I say this because if you have been using OC for years to give me an idea of the "durability" hehe
Regards

I have two, one is quite hot but when playing which is where I have used it the most it is rare that it reaches 70º, I am talking about summer, with stress tests if it reaches 85º that is at 3800 MHz and 1,256v, but in games or other CPU uses it never gets close to those temperatures, the other is at 4200 and that one with torture tests the maximum I saw I think is 78º in summer, playing it usually does not go above 65º, both are years old, but the fact that the intelburntest heats up at least 15º more than it can do with normal use.

regards

[Maegirom]

ok thanks. I feel at ease then.
Best regards

[Maegirom]

Hello again.
I'm back because overnight my PC told me it wouldn't boot with this OC. Since I OCed it, it's been working wonderfully, with the temperatures I gave you earlier, prime and linx tests passed, etc...

And today suddenly as soon as I turned it on, I got the message overclock failed.
For now I've increased a little (the minimum allowed increase) the vcore and the qpi voltage (vtt) and it seems to be going well. Right now I'm running the prime.

I'm annoyed that this increase makes a "7" appear again in the temperature of the cores (Right now I have a core at 70°), when I had managed to leave them at 68° maximum.

But what really bugs me is why the hell what worked great yesterday (and for 2 months) today doesn't feel like booting. Could it be that in 2 months the OC has deteriorated the components to the point of asking for a little more voltage?

Thanks.
Regards.

[sarewak]

@Maegirom:

Hello again.
I'm back because overnight my PC told me it wouldn't boot with this OC. Since I set it up, it's been working great, with the temperatures I gave you before, Prime and Linx tests passed, etc...

And today, as soon as I turned it on, I got the overclock failed message.
For now, I've increased a little (the minimum allowed increase) the vcore and the qpi voltage (vtt) and it seems to be going well. Right now I'm running Prime.

I'm annoyed that this increase makes a "7" appear again in the core temperature (right now I have a core at 70°C), when I had managed to keep them at a maximum of 68°C.

But what really bugs me is why what worked great yesterday (and for 2 months) doesn't want to boot today. Could it be that in 2 months the OC has deteriorated the components to the point of needing a little more voltage?

Thanks.
Best regards.

Well, you don't have to worry about the temperatures. They're good!
It's an i7 920 (2.6 ghz) standard, and you're already boosting it to 3.8 ghz.
It's logical that temperatures go up due to the voltage increase (necessary).
A system with good temperatures is considered when it passes stress tests (the most aggressive are the Intel Burn Test), and doesn't exceed 80ºC on the cores.
Because in your day to day, you won't reach that, not even close.

For example, in my tests, with an i7 950 4.00Ghz, with the same cooler as yours, I reach 78-77-75-74, the 4 cores, after 20 passes with the IntelBurnTest that uses 100% of the proc. and 95% of the memory during the test that lasts about an hour.
Similarly, Prime95 for 8 hours and doesn't go over that temperature, doesn't reach 80ºC.
Well, when playing games (which is what can stress you the most among other things), it doesn't exceed 70°C, all cores are around 60-68... We're doing great!
That's why your temperatures are GOOD.

The voltages are also quite low, that's probably why you got an OC failure.
I started with vcore 1.3, VTT 1.35, PLL 1.86, IOH 1.20... with 200x20.
And I've managed to lower the vcore for example, to 1.237, VTT to 1.33... I've left the rest like that.

Another thing. LLC corrects vdrop and vdroop... but doesn't eliminate it completely. Keep that in mind. Moreover, the closer the Vcore is to its limit, the lower the vdrop you'll have, up to a point that I in IDLE and in FULL had the same voltage (1.200v) and in the end it gave me an error.
In full, the voltage always drops more than in idle, generally speaking.

I would disable speedtest and C1E. It can cause instability (the voltage drops too much) and may be what failed you.

Regarding the benchmark result, 3dmarkvantage, keep in mind that it's a graphics benchmark, so what influences the most is the graphics. That's why you haven't noticed much gain.
Do the same with cinebench (cpu), and there you'll really notice the improvement, since it's a cpu usage test exclusively. (of the two it has, select the cpu test)

Best regards