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post #20961 of 22605
Quote:
Originally Posted by pokerapar88 View Post

I actually did (thanks for the heads up) I found out I was voltage dropping on heavy loads to 1.185v which was unstable doing x264 bench, so I upped the voltage 0.020v and now it drops to 1.201 and when it volts high it does 1.220v which is rock solid stable. Temps don't go above 72ºC with air cooling... so a win win!

Are you using adaptive voltages?
post #20962 of 22605
Quote:
Originally Posted by Louie7600 View Post

Hey Everyone, I recently added a Corsair H55 water cooler to my i5 4690K. I've been pretty conservative so far with overclocking but i'm really curious to see what my peak would be. Also joining the 5ghz club would be awesome.

I'm currently running at 4.590Ghz @ 1.275 volts. This comes from a 102 base clock and x45 multiplier.

I was hoping to get some advice and tips on where I should focus next. From the research I've done, it seems exceeding 1.4V is strongly discouraged. Would being in the 1.325-1.375V range be safe? Also should I overclock the cache as well?

Yes sir. Your 4690k is around the same vcore mine needs for 4.5ghz, and if it's like mine in other ways you're going to need higher cache multipliers to stabilize higher core multis.

In addition to that, vSA becomes critical to stabilizing the system at higher cache frequencies. Too little will freeze for a while then do a machine check exception blaming some innocent driver. Enough of it but not enough vRing tends to get me a watchdog timeout, while too much vSA seems to throw a generic WHEA x124. Too much vRing seems to be a primary cause of no-BSOD reboots.

Don't be afraid of higher vRings. If your cache needs it, it needs it. I wasted a lot of time trying to stabilize it at lower voltages, but mine has stock VID of 1.205 and is currently 12m into a p95 blend run at 1.3v while throwing quick watchdog timeouts at 1.275 at 4.3ghz.

Good luck. I hope yours scales better than mine.
Edited by MIXEDGREENS - 7/7/16 at 4:59pm
post #20963 of 22605
Quote:
Originally Posted by killkernel View Post

CPU Micro-code can be explained/understood at two levels and let me use the exemplification considering the integrated version in BIOS similar to an "hardware level" while the version reported by the OS and the monitoring/HW detection software as a kind of "SW level", in fact if you read the key of the Windows registry

HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0

and find the DWORD (labeling correspond to MS Windows 7 x64 that i'm using at the moment)

"Signature Update" = current latest microcode (from mcupdate _ *. Dll)

"Previous Signature Update" = default original microcode version (from BIOS)

Microcode is taken from c:\Windows\System32\mcupdate_GenuineIntel.dll (or mcupdate_AuthenticAMD.dll).

I'm not interested on what version is shown in OS by monitoring software because the "real" difference is made by CPU Micro-code integrated in BIOS infact if you have to install a new CPU on a motherboard declared compatible by its manufacturer you must update the BIOS with a new version that will integrate new CPU Micro-code with implementations for its management as well as recognition.

Cheers,

KK

? Not sure what you are trying to say here. Windows will apply patches to the OS that will load newer microcode. It is recorded in the registry as you say. All AIDA64 does is report that. If your BIOS microcode revision is less than the OS revision, the OS revision will be loaded in the microprocessor at boot. All I am asking you is to verify that the OS hasn't overloaded the microcode in the BIOS.

What you say about a new CPU maybe needing a new BIOS with the correct microcode is correct, but I think not for the reason you re thinking. The BIOS of course needs a working processor to execute its code. You have to have a revision of the microcode for that processor in the BIOS in order to bootstrap the BIOS (you also need a version of IME that supports the processor). Once it is booted, if windows has a newer version, it will get loaded.
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post #20964 of 22605
Quote:
Originally Posted by JackCY View Post

Fluctuate where? The monitoring software uses different methods to derive the clocks. It's completely normal that it fluctuates on any board and CPU but people are always freakin' out.

It would fluctuate anywhere from 97mhz to 99mhz but never 100mhz. That's around a 0.1ghz difference, which when benchmarking, can be a difference. I like it locked at 100mhz
Edited by OmegaNemesis28 - 7/7/16 at 11:59pm
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post #20965 of 22605
You know that it's just a monitoring glitch and not at actual hardware level right? Which means there is no difference in benchmarks lol Having that monitoring software running while benchmarking is doing more harm to performance.
I get 99.98MHz in CPU-Z constant and 100.00MHz in HWiNFO when you set it up right, no fluctuation in monitoring. And yes I have all the CPU features enabled, power savings and virtualizations, all of it. But I think I did disable the spreadspectrum EMI compliance thingy off which is what causes those biggest variations in monitoring software to be shown and you don't need it enabled it's there just for Intel to pass EMI standards.
Edited by JackCY - 7/8/16 at 4:07am
post #20966 of 22605
Long story short. Me+malfunctioning pc=250€ for a new i5 and lost 200mhz for the same voltage yay computers haha.

PC was in boot loop. Removed all sticks of ram and it booted with one, thought the cpu was making poor contact since it was bowed a bit running bare die. Tried to bend it back flat and heard a crack. Put it in wouldnt even boot, got a new cpu overnighted. Put it in, wouldnt even boot at 1.2v 45x mad.gif

Tried all my sticks of ram turns out one didn.t work. Stuck it back in after scrubbing it and cleaning it (had some corrosion from doing my water install) turns out the stick isnt bad either. So i destroyed my good chip, bought a new chip that only gets 43x, 44x crashes within 1min in stress test, 45x crashes at boot. And i wasted 250€ not checking what i should have checked in the first place.

Lesson learned, stuff happens haha. Now to see if i want to run this one bare die again (since it wasnt the issue in the first place) or just delid and run it with CLU.
    
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post #20967 of 22605
Would you guys know and be able to tell me why my manual sets of RAM timings in BIOS go unrecognized by the computer?

I have tried XMP on, XMP off, manual mode, advanced manual mode, normal boot mode, auto boot mode.

Did I miss something about Corsair having locked clocks? I feel like I have been sniffing paint or something. All my attempts at changing from stock timings do nothing. The ram just sits at 11,13,13,31 even if I type in 11,13,12,30


Edit: BIOS version for the win. It seems that my motherboard might need some help.
Edited by g0tsl33p14 - 7/10/16 at 1:43pm
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post #20968 of 22605
Had my eureka moment last night; felt like I was reading the matrix.

To test my theory I did a few proof of concept runs. 5 minutes of HCi RAM overclock/undervolt:


Stock clocks at core -90mv from stock, ring -70mv. DDR3-2800 at vSA -42mv IOD -21mv IOA -16mv and tertiaries tighter than a nun's... purse strings.

Final overclock coming soon.
post #20969 of 22605
Quote:
Originally Posted by MIXEDGREENS View Post


Final overclock coming soon.

Damn that looks fast.

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post #20970 of 22605
Don't know why I expected those tertiaries to hold, but they were fun while they lasted. Fundamental theory behind my IMC voltages seems sound though.
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