Apparently, I'm just not understanding how to use this. I've read that offset is better than a set voltage, which I get because it should theoretically drop the voltage when not in load. So, how do I use it? I tried switching to offset and it showed my VCore to be at 1.224 so I put it at -.035 assuming that's how much it would drop at idle. I also have speedstep on allowing it to drop the multiplier when idle. Am I doing this right? Cause Win7 wouldn't boot so I went back to manual. Also, can anyone explain to me what C1/3/6 is? Should they be on or off?
Ok, explain to me how to use offset
- Thread starter MPiland
- Start date
No no...all offset voltage does is change the voltage under load. So, if your stock voltage is 1.30v and you offset it +0.05v, you will get 1.35v under load. It allows your computer to idle at a very low voltage.
Basically the offset is how much voltage you want to add to your CPU under load. You could subtract, but that would only work if you're going to underclock/undervolt your CPU. 99% of people would add voltage to overclock.
Basically the offset is how much voltage you want to add to your CPU under load. You could subtract, but that would only work if you're going to underclock/undervolt your CPU. 99% of people would add voltage to overclock.
Ok, so how do I know what my stock voltage is then? Because when I selected offset mode it said 1.224v, then I went back to manual and changed nothing and then clicked offset again and the stock voltage changed to like 1.08 or so. So how do you know which is which?
cantholdanymore
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- Mar 20, 2011
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Not your board but from asus:
http://rog.asus.com/51092012/overclocking/overclocking-using-offset-mode-for-cpu-core-voltage/
http://rog.asus.com/51092012/overclocking/overclocking-using-offset-mode-for-cpu-core-voltage/
Ok, from what I gathered, you set offset to auto at first then boot the computer and see what the voltage is at load. Then use the negative offset to lower that load voltage. But, it also lowers the idle voltage, so how do I keep that where it's at? Or at least close the gap?
Set your vcore for offset mode and change the value to 0.005v's or so. Then look for additional turbo voltage and see if it offers a - offset value. About the only way to keep vcore down without lowering the idle vcore at the same time with offset voltages.
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I guess what I'm confused about is if I use offset to add load voltage higher than what auto does...what's the point? If I do manual I can do like 1.22 or so, but auto wants to jump it higher than that so why add even more?
cantholdanymore
Senior member
- Mar 20, 2011
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Need to use negative or positive depending on your chip and need to check stability at load and idle (see if you can boot into windows). Once you're satisfied with your voltages increase the OC and repeat.
LOL this almost seems pointless. If I just set my VCore manually and let Speedstep adjust the voltage at idle, it's the same thing. I guess this would be a different case if I didn't have an Asus board? I mean, adding an offset is almost the same as manually setting it, but you're just modifying the boards auto setting?
Are you overclocked?
Does your chip throttle down at idle? Both speed and vcore?
Offset voltage mode works but takes playing around with to get working. Depending on the MB it will allow you the ability to control vcore at idle and load with -/+ offset values.
Does your chip throttle down at idle? Both speed and vcore?
Offset voltage mode works but takes playing around with to get working. Depending on the MB it will allow you the ability to control vcore at idle and load with -/+ offset values.
That's just plain wrong, why you would give wrong advice. Offset affects all voltages in the VID table, from the lowest idle voltage to the maximum load voltage.
The whole point of using offset instead of manual is that offset will let the voltage drop based on Speedstep while manual will always give it the same voltage. But all voltages (idle, in between, and load) will be offset by the amount you have set.
Leaving either manual or offset to auto will result in the motherboard arbitrarily feeding whatever voltage is preset by the manufacturer in the BIOS for a particular frequency. Generally leaving it on auto is not a good idea.
Oh, so Speedstep isn't affected by manual?? Ok that changes the game now. I guess I'll do offset tonight. So first I should do auto and see what it sets the load voltage at, and then offset from there? Now, since that's going to lower the idle voltage, how do I bring that back up so it's not TOO low?
I'm OC'ed at 4.5 using manual, but I want to try offset now. Now, what about C1E/C3/C6? I've seen people disable these, but I've also read these can stay on and don't really affect the voltage?
There is no need to disable the energy saving features with current cpus. Unless your going for some crazy high overclock then they will have no effect on stablitliy. Guess maybe on some mb/cpu combos it could but I've never dealt with it.
If your current overclock is stable then I'd suggest you use the MB's save profile feature and name it before playing around.
Dude you're so confused.
Manual = voltage is always that. Doesn't matter if idle or load (so yes speedstep is affected, voltage will never drop)
Offset = whatever the intel set VID voltage is + your offset
So if your VID for 1600Mhz is 0.900, with +0.050 offset you will make it 0.950
VID at 2500 is 0.950, you will make it 1.000
VID at 3200 is 1.050, you will make it 1.000
VID for 3700 (max) is 1.100, you will make it 1.150
Setting the board to Auto while you overclock does not tell you anything. It just gives the BIOS the authority to give it whatever voltage it wants, or rather preset by Asus.
Once you change your vcore from fixed to offset mode your chip will throttle down voltage and speed at idle.
Start out by just changing the vcore from fixed to offset mode and using a offset value of +/- 0.005v's or so and load the cpu down to see what the vcore is under load. Then you'll have a starting point to go on. Modern Intel cpus don't have a one vcore fits all speeds, it's more dynamic based on the multiplier being used, amount of load, and cores loaded.
Things like Load Line Calibration will effect how much vcore is given under load so take that into consideration when judging how high your vcore is under load. Not sure what you've changed in the UEFI to get to your current overclock is why I brought it up. If you did crank this up then your offset vcore will be higher than if you left it at disabled or on a lower setting.
LOL sort of confused, but I'm getting there. I get how manual voltage vs offset works. With manual, Speedstep does nothing, but with offset it helps lower the voltage when the cpu is in idle. I use offset to adjust the stock voltage to help with OCing.
Ok, so change to offset, get into Windows, load the CPU and that's my starting point. From there I play with the offset until stable. The LLC affects the idle, correct? The higher then LLC then it will raise the idle voltage? So if I do a (+) offset, I should lower the LLC if I feel the idle is too high? And vice versa if I do a (-) offset?
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Yes. Setting it to offset mode and using a low value gives you a starting point to work with. If your chip needs 1.25v's under load to be stable you'll wanna play with the values to get there.
LLC will effect the loaded vcore and have little to no effect on idle vcore.
LLC controls how much the vcore will drop under heavy loads.
LLC can somewhat be used to manipulate the values of offset mode if needed.
LLC has little effect on idle voltage, it has most effect on load voltage. LLC will prevent the load voltage from dropping down when drawing high amps.
In general this is a bad thing, it is by design from intel to help prevent spikes, but if you are aiming for very high clocks, LLC can help you achieve a higher load voltage without raising the offset too much and therefore raising every other VID as well. So unless you are trying for 5 Ghz, there is no need for LLC, it's actually detrimental to the overall stability (idle>load and load>idle transitions) of the system.
Ok, I'm going to work with this tonight. Thanks for all the help guys...I'm still a bit confused on how to stop the idle voltage from dropping too low or raising too high after using offset, but I'll see what I can do.
Ok, I've got a question. I did a LOT of playing around with my set up last night and I still can't seem to get it stable. I might just be trying to get the VCore too low at load and being unrealistic in my expectations, but we'll see. I just want to totally make sure I understand how LLC works. I know LLC reduces the VDroop at higher levels, but it seems to also increase the VCore load amount. Is this right? If so, that means the higher the LLC, the more (-) offset I need to add or the lower the LLC the more (+) offset, right? I had it at High (50%) with -.02v offset which ran IBT just fine, but failed Prime95 and was keeping my load VCore at around 1.208 with 4.5GHz. So I put it at Ultra High (75%) and my offset at around -.03v and am running Prime95 right now while I'm at work. The VCore at load was about 1.218 or so. Am I thinking about this the right way and how LLC works vs VCore at load and idle?
If you care at all about the stability of your computer, increase the offset and do not use LLC.
LLC is useful only if you are trying to reach very high clocks and you don't want to use a very high offset. It will give you higher load voltage and therefore stability under load, which is great for benching at high clocks, but it doesn't prevent load transition overshoot and undershoot spikes (what load line was designed for), which is how everyone uses their computers everyday.
LLC is useful only if you are trying to reach very high clocks and you don't want to use a very high offset. It will give you higher load voltage and therefore stability under load, which is great for benching at high clocks, but it doesn't prevent load transition overshoot and undershoot spikes (what load line was designed for), which is how everyone uses their computers everyday.
So, set it to auto? Or 0%? But auto increases my load voltage up to like 1.24 which seems a bit high for 4.5 doesn't it?
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