Overclocking i5-3570k with Asus Maximus V Fomula

[reyderrs]

Hello guys I'm a little concerned because I'm not able to reach 4.6GHz on my i5-3570k with Asus Maximus V Fomula. With 'not able to reach' I mean my system always crash after a few seconds of Small FFTs RealTemps test. The temps are not even so high (bellow 85) previous the system crash. Is this 'normal', should I be concerned, something is not right? When I downclock to 4.4 I pass all test. For do the OC I'm just using ASUS AI Suite, I did not touch anything else at all because I'm a very beginner to OC . I'd be more than grateful to read some of your experienced opinions. Thanks in advance you guys!

My rig
Asus Maximus V ThunderFX
i5-3570k
Corsair H80i CPU Cooler (no matter how many RPMs, it crash anyway)
Cooler Master HAF X Chassis
16GB RAM -->Kingston Hyper X Plug n Play 8 GB Kit (KHX1600C9D3P1K2/8G) [x2]
Corsair AX860 PSU
Asus Nvidia GTX 660 Ti graphic cards
Kingston HyperX 240GB Solid State Drive (SH103S3B)

[reyderrs]

Following one of your guides I set the CPU Load-line Calibration to Extreme and now I'm passing the Small FFTs Prime-RealTemps at 4.6GHz without changing anything else. Temps went a little high (Max 96C) but it passed. Voltage is 1.33V. However when I try to run Realbench I got an error during video encoding test. It is interesting by the way because the big windows print a message Error but the console that runs side by side with that Windows print "everything is OK" . I passed the stress test too. I suppose it means I'm not still stable isn't?
Should I increase or decrease the voltage to try to fix this? Or I just must to downclock to 4.5 and keep it like that?

[HiVizMan]

The RealBench stress test is not as demanding as the benchmark.

I am not a fan of LLC being set to extreme but if you are happy with that. I would prefer to increase the vcore slightly and have LLC set to medium. I am a huge fan of Offset Overclocking with all the C states enabled and a modest positive offset.

[reyderrs]

Can you explain what the C states are? Sorry for my ignorance!

[reyderrs]

You are right: setting the CPU Load-line Calibration to Extreme causes the temps to considerably rise. What I did next worked awesome: I put the Bios in AZ Mode and set the Extreme Settings, after that the CPU was put to 4.6GHz and the voltage to 1.35 but with those settings the system failed the RealBench Multitasking test, then I raised the voltage to 1.45 (two 0.05 increments) and wow it pass all RealTemp and RealBench test and Temps never reach 85. CPU Load-line Calibration is in AUTO now. I'm not sure exactly what other settings the Bios software modified but I got 4.6 GHz very stable, that is all I need. The BIOS auto settings are much more useful than AI Suite ones. The little voltage push is needed but my chip probably others wont even need it.

[HiVizMan]

Well done mate, pleased that you are sorted.

And to answer your question. CPU C-states are core power states requested by the Operating System Directed Power Management (OSPM) infrastructure that define the degree to which the processor is "sleeping".

C0 indicates a normal operation. All other C-states (C1-Cn) describe states where the processor clock is inactive (cannot execute instructions) and different parts of the processor are powered down. Deeper C-states have longer exit latencies (the time to transition back to C0) but save more power. The processor can override an OSPM request and automatically demote a specific C-state request. For example, the OSPM may request C6 but the processor may actually use C3.

If a C-state transition entered multiple C-states (for example, C2 and C4) during a single transition, the VTune Amplifier defines and displays it as Cx sleep state.

[CND_MIGHTY_MOOS]

I was going to go for 5.2g but I ran out of quarters.

🙂 Raped by Rog and I like it.