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 Sandy Bridge Overclocking V2 | 2500K/2600K/2700K, The Journey Continues Here... :)

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DunkyKung
post Jan 1 2013, 11:57 PM

~im dead sexxay~
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hello guys, i just upgraded my system to intel, now im into overclocking,slowly learning here smile.gif

put that aside, i just wanna some clarification, why my proc which is i52550k voltage very high on offset mode?at 4.0ghz its 1.38v already..i tried manual voltage, it run stable on 1.2v @4ghz..proc or mobo prob? im using asrock z77 extreme 4..using manual OC, proc stay 4ghz no matter what condition, idle or load..pls enlighten me, as this is a new world for me..

edit/add info
and, why my proc idle temp is so high?using cm212evo with 2 fan, idle around 35-40, load around 55-60..these temp on stock clock which is 3.4~3.8(turbo).. sweat.gif

This post has been edited by DunkyKung: Jan 2 2013, 12:07 AM
DunkyKung
post Jan 2 2013, 06:51 PM

~im dead sexxay~
*****
Senior Member
826 posts

Joined: Dec 2006
From: around kaybee
QUOTE(owikh84 @ Jan 2 2013, 11:14 AM)
Offset mode is ultimately depends on the VID of the chip. Every CPU has different VID. It is also depends on what level of offset you set in BIOS, +0.05, -0.05, +0.1 etc which will tell how the chip will behave under load/idle.

Manual voltage on the other hand, will override VID, thus what vCore is set in BIOS + LLC is what you get in the OS. If you feel that manual voltage could give you better vCore then just use the manual mode. I myself, like most people out there prefer to OC with manual voltage. More comfortable. nod.gif

If you don't want to see CPU clock @ 4.0GHz all the time, enable the SpeedStep (EIST), C1E, C3, C6 in CPU configurations in BIOS. In Windows, go to Power Management settings, change to Balanced or Power Saver plan, instead of High Performance.

Added on January 2, 2013, 11:17 amYour temps look quite normal if you're in an non-airconditioned room. Besides that, it depends on the air flow inside your casing as well. You might wanna remount the CPU cooler and reapply with a better TIM like Arctic MX-4, Tuniq TX-2, etc. Just to name a few.
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ok,here is the latest oc ive done, hwmonitor and coretemp showing different cpu voltage..which one should i trust? rclxub.gif this is on offset mode +0.005v with additional turbo voltage at +0.004v..and the temp is so hot @4.5ghz..im not planning 24/7 on this speed, just wanna see how far this proc could go with minimal voltage added..

Attached Image

btw, according to intel, 2nd gen i5 which is sandy bridge only support ram up to 1333mhz @1.5 volt, is there any downside if i use xmp profile which is 1600mhz @1.65v?

update:now im on offset mode -0.005v, temp is much better, but i dont know about stability on idle
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This post has been edited by DunkyKung: Jan 2 2013, 07:23 PM
DunkyKung
post Jan 2 2013, 07:55 PM

~im dead sexxay~
*****
Senior Member
826 posts

Joined: Dec 2006
From: around kaybee
QUOTE(owikh84 @ Jan 2 2013, 07:45 PM)
HWMonitor shows vCore, whilst CoreTemp shows VID so we would refer to the HWM.

It is fine to run a 1.5v rated RAM at 1.65v. The reason why 1.5v is specified in their specs is because Intel only validate their processors at 1.5v.
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i just got a bsod just now, on windows 8 its hard to get the error code, but i manage somehow..its 0x124, and according to u in overclock.net forum, 0x124 = increase/decrease vcore or QPI/VTT . so i think , i need tu bump the offset more..is that right?
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