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this is going to sound daft - Page 2

post #11 of 14
Quote:
Originally Posted by exnihilo View Post


He might be talking about the smiley face. It appears the OP removed his original post while you were typing.

cg

 

Well yeah, I figured that much out.  I wasn't wondering about that.

 

 

Quote:
Originally Posted by Yoneda View Post


It looked like a troll thread>.<
All I see is:

"This is going to sound daft"
"smile.gif"

 

In my interactions with the staff members, they prefer that we report posts instead of saying something.

 

 

Quote:
Originally Posted by dymmy View Post

sorry I thought I had posted in the wrong place. I have looked at images/screen grabs of bios' and I am confused as people are setting their CPU voltages manually to eg 1.265 then in the next image is the same settings/options but this time they have selected Offset mode and have set an offset of eg .045 Am I right to think once you find a stable voltage, switching to offset mode is going to still keep the 1.265 voltage then apply the offset you decide ? I hope I am making sense thx in advance

 

Did you see my reply?

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post #12 of 14
Thread Starter 
I did see your reply and thanks, my Sabertooth board 's Bios confuses me though and the whole Offset thingy too. Only that you get the option to either set a manual voltage or change the manual option to offset and input an offset voltage but I know I need to find a satble voltage then apply an offset to that . How if in settings it's one or the other ? Does the BIOS remember your voltage automatically ? I doubt this because if i go back to manual then back again to offset mode its returned to default of AUTO frown.gif hope this makes sense
post #13 of 14

When you switch to the Offset setting, it is up to you to know what offset voltage you are going to use.  You have to do the figuring.  So, it's either Manual or Offset; switching to Offset doesn't apply it to the Manual voltage or anything like that.  It's just a different setting and it has a completely different set of rules.  The Manual voltage is straightforward, but the Offset is based on a calculation that you have to figure out.

 

Although, lots of people just start with something small like +0.005V or -0.005V (positive or negative) and they go from there.  However, if you start with a Manual voltage, get your overclock all stable, and then decide that you'll switch to an Offset when you're done, then you can stop right before switching to the Offset and figure out what it will need to be.

 

So, it's two different ways of setting the voltage, only the Offset voltage makes the voltage go very low while it's idling because it is either adding to, or subtracting from the VID.  Each multiplier has its own VID, and when the CPU is idling at a multiplier of x16.0, the offset is adding to, or subtracting from that muliplier's VID (and x16.0's VID is always very low).  When the CPU is fully ramped up to your overclock multiplier, the offset is adding to or subtracting from that multiplier's VID, which is naturally a lot higher than x16.0's VID.  So, that's why the Offset makes the idle voltage very low.  Of course, if the multiplier doesn't go down to x16.0 (if the CPU doesn't downclock), then the voltage won't go down while idling either because the multiplier will still be all the way up to the overclock's multiplier.

 

There is just a little bit more to it than this, but this is the gist.  I mean, especially for the calculation.  Even though the Offset is either adding to or subtracting from the VID, the calculation isn't quite as straightforward as that due to vDroop.  So if you can eliminate vDroop using the Load-Line Calibration Setting while you are using a Manual voltage, then it will make the math for finding your offset become much easier and a lot closer to being totally straightforward.

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250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
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KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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post #14 of 14
exactly what two cables said. I like to use cinebench with cpu-z (cpuid) to check my vcore when I set an offset, if you see a lower vcore than you want stop it hopefully before it freezes and reboot and raise the offset more and repeat until you get the load voltage to match what you were originally stable with in fixed mode.
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