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[Official] The Sandy Stable Club **Guides, Voltages, Temps & BIOS Templates** Inc SPREADSHEET - Page 577

post #5761 of 10699
New to intel.
Having some issues with my Overclock on my 2500k.
Currently running 4.5ghz with 1.35V core, no fluctuation, LLC at highest setting. Core speed and voltage are always 100% constant.
I have all C states disabled, speed step enabled, etc.

I can run prime 6+ hours, IBT on Very high for 200+ passes, yet if I open newegg.com or some other web page, my computer will either hard lock, or BSOD. I am also getting random BSOD's during Skyrim, but no other gameplay.
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post #5762 of 10699
Quote:
Originally Posted by kevindd992002 View Post


Do you recommend doing custom blend test with default settings and 90% of available RAM right away?

He has often recommended that people test FFT 1344 and 1792 for a while first, as that's where the Sandy Bridge systems seem to have the most failures. You may as well go for 90% RAM use there and kill two birds with one stone, if you think you're stable already. If you get each of those stable for 2-3 hours, then yeah, go for a 90% RAM blend and you'll get it no problem I bet.

Of course, if you get a crash or an error you'll need to memtest+ the RAM with a few passes and then troubleshoot the CPU aspect assuming the RAM is good.


Quote:
Originally Posted by mxthunder View Post

I can run prime 6+ hours, IBT on Very high for 200+ passes, yet if I open newegg.com or some other web page, my computer will either hard lock, or BSOD. I am also getting random BSOD's during Skyrim, but no other gameplay.

Are they BSOD 124 ?
Edited by shad0wfax - 12/2/11 at 5:32am
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post #5763 of 10699
I scanned for some type of number, but the only thing that stood out to me was a "STOP" error.
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post #5764 of 10699
Quote:
Originally Posted by mxthunder View Post

I scanned for some type of number, but the only thing that stood out to me was a "STOP" error.

Alright, normally the very last number shown at the bottom of the STOP error looks like this when it's a voltage related issue:

413

A STOP 0x124 error is an error that's reported via the Windows Hardware Error Architecture (WHEA). This type of error is reported by the hardware (most likely your CPU) and doesn't conform to the normal Windows memory dump analysis techniques.

It's either your RAM not liking the speeds your clocking it at or your CPU not liking the speeds you're clocking it at or not having adequate VCore to handle the clock you're at.


EDIT:

munaim1 has a post about it:
http://www.overclock.net/t/1120291/solving-fixing-bsod-124-on-sandybridge-read-op-first
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post #5765 of 10699
Thank you, +REP.

I will try to set C3 and C6 to auto.

The funny thing is, when I try to run memtest 86+ it instantly reboots my PC, it doesnt even load the interface from my boot disc.
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post #5766 of 10699
Hello,

I need some advice on overclocking my 2700k and, since there a lots of experienced Ocers here, I figured this would be the best place to ask. I've been playing with my chip for a while now and got up to 5ghz at around 1.392-1.400v under Prime 95 load.

Settings are as followed:
  • XMP profile
  • Pll Overvoltage is enabled
  • EPU disabled
  • LLC set @ Ultra High
  • Current Capability @ 130
  • VRM set at @ 350
  • Speedsted/C1E are enabled
  • C3/C6 are disabled
  • Duty/Phase Control set @ extreme
  • All the rest on Auto

First, I'd like to know if the settings I use for Prime 95 are appropriate for my build. I heard using a bit too much memory could cause aberrations.

256

Secondly, I heard there are much more reliable ways to test stability than Prime. Could someone give me some input on the subject?

Lastly, I like to hear any tips and settings that could help me reduce V-Core consumption.

Thanks!
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post #5767 of 10699
Thread Starter 
Quote:
Originally Posted by shad0wfax View Post

I'm actually thinking about getting into tighter timings with my RAM. I don't want to increase my BCLK though and I'm on a set of G.Skill Ripjaws 2x4GB 1600 CL8 XMP stuff that's already timed at CAS 8, RAS to CAS 8, RAS Precharge 8, tRAS 24, tRC 34, command rate 2T @ 1.500 V.
My DRAM Frequency is stock so it's BCLKx8 = 800MHz with a FSB:DRAM of 1:6.
I know I've got a very solid motherboard for tweaking things, so how would you suggest that a total nooblet to OC RAM like me goes about to stabilizing this in a way that's going to be meaningful to my performance?

Well overclocking your RAM isn't really going to give you any noticeable performance increase unless you do benching. Have a little read in my other thread: Overclocking & Choosing RAM for Sandybridge H67/P67/Z68.


Quote:
Originally Posted by kevindd992002 View Post

Do you recommend doing custom blend test with default settings and 90% of available RAM right away?

No, if you find that the hard FFT's work well for you and they don't show signs of inconsistancy then yeah, do the hard fft's, if they do then just use the default custom blend with 90% of available RAM.


Quote:
Originally Posted by Sean Webster View Post

Oh yea, so far 9hrs...hope I get 3 more! Been up all night but it will be worth it! smile.gif

Good luck bud, hopefully you can finally join the club tongue.gif

Quote:
Originally Posted by mxthunder View Post

Thank you, +REP.
I will try to set C3 and C6 to auto.
The funny thing is, when I try to run memtest 86+ it instantly reboots my PC, it doesnt even load the interface from my boot disc.

C3 and C6 on auto while using manual voltage should do the trick, however I would recommend using offset voltage and c3 and c6 disabled due to the sata throughput affect. I do believe I have mentioned this in that thread that shad0wfax linked you to.

Quote:
Originally Posted by Ilikebacon View Post

Hello,
I need some advice on overclocking my 2700k and, since there a lots of experienced Ocers here, I figured this would be the best place to ask. I've been playing with my chip for a while now and got up to 5ghz at around 1.392-1.400v under Prime 95 load.
Settings are as followed:
  • XMP profile
  • Pll Overvoltage is enabled
  • EPU disabled
  • LLC set @ Ultra High
  • Current Capability @ 130
  • VRM set at @ 350
  • Speedsted/C1E are enabled
  • C3/C6 are disabled
  • Duty/Phase Control set @ extreme
  • All the rest on Auto
First, I'd like to know if the settings I use for Prime 95 are appropriate for my build. I heard using a bit too much memory could cause aberrations.
256
Secondly, I heard there are much more reliable ways to test stability than Prime. Could someone give me some input on the subject?
Lastly, I like to hear any tips and settings that could help me reduce V-Core consumption.
Thanks!

Using custom blend and 1344 and 1792 can help for a quick test, however, with any quick test there can be inconsistencies, therefore I don't recommend those ffts, however if they work for you then great if not then a custom blend with 90% of available RAM should do the trick. Just a note, using those FFT's you can either use 1600mb RAM (default) or higher, which in turn makes it even more difficult to pass. Unfortunately there are debates as to what is the best stability tester for sandybridge, myself and other's have found that prime blend with 90% of ram is the best one, it stresses the cpu and RAM together with the IMC.

How long have you run prime with 1.392/1.40v? That is pretty amazing voltage for that overclock!!! thumb.gif
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post #5768 of 10699
Does having C3 and C6 disabled on manual voltage affect SATA speeds? IIRC it didn't for me...
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post #5769 of 10699
Thread Starter 
Quote:
Originally Posted by csm725 View Post

Does having C3 and C6 disabled on manual voltage affect SATA speeds? IIRC it didn't for me...



Depends on your overclock smile.gif

Read this:

JJ explained how C states can have an effect on the sata performance, mainly sata III:
Quote:
Quick note regarding options that can affect subsystem performance
It is NOT advised to make adjustments to Cstates as this can considerably affect hard drive throughput performance ( especially SATA6G SSD or Sandforce 2 based SSD ). It is recommended that all CPU power configuration states be left on their default parameters. Overclocking tests have shown internally no increase in multiplier scaling when adjusting these values. * under special cases with high multi capable CPUs and synthetic high load applications ( Linx, Prime, Occt ) it may required C states to be disabled. This has generally only been confirmed for some 51-54 multi capable CPU’s.

This is obviously an issue for those with high overclocks. I have upto this point advised to disable C3 and C6 reports due to idle random bsods when using offset voltage, otherwise they're left on auto (default).

Bit of info from the stable thread:
Quote:
Originally Posted by error-id10t;15119077 
When I got my board, I read this too and thought 'what nonsense'.. or at least misinformation.

Owning a Vertex2 I can say that enabling C3 and C6 will slow it down (4k writes especially) and though the M4s on my current build are not affected to the same extent, the SATA throughput is not crippled by disabling C3 and C6. I only checked using AS-SSD and access times don't change either way, if you want I guess Anvil gives more information to prove this either way.

add: you can run 3DMark11 which shows smaller score if you enable C3 and C6 so it does have an impact (negative).
Quote:
Originally Posted by FoLmEr;15119699 
Yup I can attest to the C3-C6 states lowering throughput of SSDs.

Below are some tests I did earlier with my previous SATA II SSD (Corsair Force120).

WITHOUT C3-C6 states:
attachment.php?attachmentid=231270&stc=1&d=1317343954

WITH C3-C6 states:
attachment.php?attachmentid=231271&stc=1&d=1317344009

The drop is even greater w/ SATA III.

As you can see, though, only my writes are getting handicapped, but at 216MB/s it's pretty fast anyway, so I guess it's only almost a nobrainer. Other sysconfigs may yield different results, so you should test it yourself on your system altho generally I ALWAYS disable C-states while overclocking since I just don't see the need for them.

I believe folmer's testing was with 4.6ghz, but not 100% sure but if it is then it kinda makes sense for all users that run sandforce based ssd's or sata III ssd's to disable C3 and C6 and that obviously means that they should use offset voltage and NOT manual.
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post #5770 of 10699
Hmmmm. IIRC I didn't see this issue at 4.5 with C3 and C6 disabled with manual volts. Very weird... but I can't check for sure as the rig is down and I will be running at 4GHz from now on.
Here is my checklist when my new mobo gets here (any points regarding the idle BSOD fixing?)
OVERCLOCK LOAD STABILITY
1) Disable basic stuff in BIOS (Unused controllers, fan notifications, etc)
2) Disable power saving stuff in BIOS (C3 and C6)
3) Set RAM speed and timings in BIOS
4) Make sure all the settings are still there in Windows (why wouldn't they be? lol)
5) Check 1792 FFT stability (everything stock, just confirming)
6) Set VCCIO and PLL (1.15, 1.5 respectively)
7) Recheck Prime 1792 FFT
Lower VCCIO to 1.125, recheck Prime 1792 FFT
8) 4GHz @ 1.24V (Tune OC)
9) Recheck Prime 1792 FFT
10) Check Prime Blend

OVERCLOCK IDLE STABILITY
11) Revert drivers to 266.66
12) Check for idle BSODs
WAIT ONE WEEK
* There should not be any idle BSODs (if for some reason there are, fix them somehow)
13) Update to latest drivers
14) Check idle
WAIT ONE WEEK
Edited by csm725 - 12/2/11 at 9:35am
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Accelero Twin Turbo II Windows 7 Professional N Dell U2311H Realforce 87U White 55cN 
PowerCaseMouseMouse Pad
Corsair TX650V2 Fractal Design R3 Black Pearl Razer DeathAdder SteelSeries 4HD 
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Audinst HUD-mx1 Beyerdynamic DT990 Premium 600 Ω Recabled M-Audio AV40 
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Turbulence
(19 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5-2500k 4.4GHz Asus P8P67 Pro 3.1 HIS HD 7870 2GB G.SKILL Ripjaws X 16GB 1600MHz 
Hard DriveHard DriveOptical DriveCooling
Crucial m4 128GB Samsung Spinpoint F3 1TB Asus DRW-24B1ST Noctua NH-D14 
CoolingOSMonitorKeyboard
Accelero Twin Turbo II Windows 7 Professional N Dell U2311H Realforce 87U White 55cN 
PowerCaseMouseMouse Pad
Corsair TX650V2 Fractal Design R3 Black Pearl Razer DeathAdder SteelSeries 4HD 
AudioAudioAudio
Audinst HUD-mx1 Beyerdynamic DT990 Premium 600 Ω Recabled M-Audio AV40 
  hide details  
Reply
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  • [Official] The Sandy Stable Club **Guides, Voltages, Temps & BIOS Templates** Inc SPREADSHEET
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