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Ivy Bridge Overclocking Guide ► Asus Motherboards - Page 560

post #5591 of 7032
Quote:
Originally Posted by Totally Dubbed View Post

That explains it.
Try going for 24hrs - then see what you get, I can almost bet that it will fail, and thus you have to increase your voltage - thus increasing the offset value.
Looks like you are going to need over 1.65v for 5ghz.
I wouldn't risk it nor get a new cooler for it.

Thanks for the tip TD thumb.gif Looks like my next upgrade soon will be for a good 3770K! biggrin.gif
    
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post #5592 of 7032
Hey guys, I could use some help with my OC, currently, I've overclocked it to 4.6ghz using 1.394v's on manual. Trying to switch to offset using
Code:
(MANUAL vcore) MINUS (VID on 100% load) = offset value
didn't work for me, as the offset it gives me is way lower than what I actually need. So right now I'm using a + offset of 205 which gives me 1.4 under load.
I've got it on high LLC using an offset of +205 and if I switch that to mid LLC + same offset, I get a voltage lower than what I need (1.394), if I keep the LLC on high, and reduce the offset to 200, it still gives me lower than 1.394v.

My question is whether there's anything I can do to make the offset give me exactly 1.394v?
I know there's really no difference between the voltage I want vs what I achieve using offset but seeing 1.4v under load doesn't feel good lol.
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post #5593 of 7032
Quote:
Originally Posted by trojan92 View Post

Hey guys, I could use some help with my OC, currently, I've overclocked it to 4.6ghz using 1.394v's on manual. Trying to switch to offset using
Code:
(MANUAL vcore) MINUS (VID on 100% load) = offset value
didn't work for me, as the offset it gives me is way lower than what I actually need. So right now I'm using a + offset of 205 which gives me 1.4 under load.
I've got it on high LLC using an offset of +205 and if I switch that to mid LLC + same offset, I get a voltage lower than what I need (1.394), if I keep the LLC on high, and reduce the offset to 200, it still gives me lower than 1.394v.

My question is whether there's anything I can do to make the offset give me exactly 1.394v?
I know there's really no difference between the voltage I want vs what I achieve using offset but seeing 1.4v under load doesn't feel good lol.

Man this post was confusing to read lol!
How is the normal offset "lower" than what you need - where are you getting that reading from?

Also what is your VID under load?

Make it simple for me and say it like this:
When I'm on manual voltage:
BIOS = 1.394
CPU-Z = 1.38 under 100% load - P95
VID = 1.2 under 100% load - P95

Offset = 1.38 - 1.2 = +0.160
Offset in bios = +0.160
CPUZ under 100% load WITH offset = 1.38
(the above is an example)
post #5594 of 7032
Quote:
Originally Posted by trojan92 View Post

Hey guys, I could use some help with my OC, currently, I've overclocked it to 4.6ghz using 1.394v's on manual. Trying to switch to offset using
Code:
(MANUAL vcore) MINUS (VID on 100% load) = offset value
didn't work for me, as the offset it gives me is way lower than what I actually need. So right now I'm using a + offset of 205 which gives me 1.4 under load.
I've got it on high LLC using an offset of +205 and if I switch that to mid LLC + same offset, I get a voltage lower than what I need (1.394), if I keep the LLC on high, and reduce the offset to 200, it still gives me lower than 1.394v.

My question is whether there's anything I can do to make the offset give me exactly 1.394v?
I know there's really no difference between the voltage I want vs what I achieve using offset but seeing 1.4v under load doesn't feel good lol.

In my experience, using Medium LLC gives me a stable offset voltage compared to High or Ultra High but it still depends on the system. It's nice to hear that you experienced the difference between LLC's and the required voltage. Using High LLC +205 which i think is best for your setup and the voltage are always changing for offset setting anyway.
    
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post #5595 of 7032
Quote:
Originally Posted by Totally Dubbed View Post

Man this post was confusing to read lol!
How is the normal offset "lower" than what you need - where are you getting that reading from?

Also what is your VID under load?

Make it simple for me and say it like this:
When I'm on manual voltage:
BIOS = 1.394
CPU-Z = 1.38 under 100% load - P95
VID = 1.2 under 100% load - P95

Offset = 1.38 - 1.2 = +0.160
Offset in bios = +0.160
CPUZ under 100% load WITH offset = 1.38
(the above is an example)


Sorry about that, was in a rush tongue.gif

Okay, well the manual voltage I need is 1.394, my VID in Core temp is 1.2560. 1.394 - 1.2560 = 0.138. Adding that as my + offset results in a load voltage of 1.3~. NOT the 1.394 I need.

Manual;
BIOS = 1.394
CPU-Z = 1.394 under 100% load - P95
VID = 1.2560 under 100% load - P95

Offset = 1.394 - 1.2560 = +0.138
Offset in bios = +0.138
CPUZ under 100% load WITH offset = doesn't go higher than 1.36ish
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Ivy-E Defined
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post #5596 of 7032
Quote:
Originally Posted by trojan92 View Post

Sorry about that, was in a rush tongue.gif

Okay, well the manual voltage I need is 1.394, my VID in Core temp is 1.2560. 1.394 - 1.2560 = 0.138. Adding that as my + offset results in a load voltage of 1.3~. NOT the 1.394 I need.

Manual;
BIOS = 1.394
CPU-Z = 1.394 under 100% load - P95
VID = 1.2560 under 100% load - P95

Offset = 1.394 - 1.2560 = +0.138
Offset in bios = +0.138
CPUZ under 100% load WITH offset = doesn't go higher than 1.36ish

Ok 2 things:
1.
It is hard to believe that your MANUAL CPU-Z voltage is exactly what you input in the BIOS - I've NEVER seen that myself.
It is always under what it shoudl be, that's just because of how load work and reduces the voltage.

2.
CPU-Z with offset @ 1.36 is good. With that said, you are on HIGH LLC with that? If so - that might also explain it.

Long story short you'll never get your BIOS voltage in CPUZ - there will always be a slight difference.
post #5597 of 7032
Thanks for the info, you've made CPU manual voltage very clear now.
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post #5598 of 7032
Quote:
Originally Posted by benjamen50 View Post

Thanks for the info, you've made CPU manual voltage very clear now.

Think of it this way:

1) BIOS vcore sets a base reference point for what the real voltage will be. You can only get the exact real voltage by measuring directly from the board with a multimeter. The BIOS is reporting what the sensor on the motherboard is telling it.

2) LLC controls the amount of variance of that base voltage. If it's fluctuating too much while under load (vdroop), use a higher LLC level.

To be honest, vdroop is not always a bad thing. It can be used to control temps better in some cases. However, it can be tricky to OC with a lot of vdroop, especially higher OC's. Using LLC you can achieve higher more stable OCs more easily. This usually comes with higher temps since the voltage is more constant (less vdroop).

FWIW, my current OC of 4.6 has LLC disabled and PLL overvoltage also disabled. It's 100% stable and temps are great! thumb.gif The chip is not delidded and I'm using a $30 cooler on what is considered a very hot CPU. smile.gif
Edited by Sheyster - 9/27/13 at 6:58am
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post #5599 of 7032
I use manual offset with OC's, because it takes time to get offset voltage and effort lol
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post #5600 of 7032
Quote:
Originally Posted by benjamen50 View Post

I use manual offset with OC's, because it takes time to get offset voltage and effort lol

The ASUS BIOS allows for a lot of different ways to get a good OC, that's for sure! thumb.gif
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