need help with 4.5 overclcok

[Scoob]

right iam lost now complete overload ibt say stable with what have it at

llc high

offset mode 1.36v with +00.15

my mouse is acting funny keeps freezin for a few seconds now and then .

Hmm, the mouse thing doesn't sound quite right.

The reason I say about restoring defaults then trying my approach is because I cannot be sure what else has been changed during your overclocking. My steps work perfectly for me from defaults, but if they were applied on top of some other unknown settings then results would be unpredictable.

In my experience (2 CPUs, a 2500k and a 2600k and three motherboards - I helped a friend) getting up to 4.3/4.4ghz requires you to change ONE setting alone, that being the multi. It might not be 100% stable but it'll likely be fine for gaming for the most part.

Getting to 4.5 and being rock-solid stable required changing TWO settings, so Multi and vCore offset.

Getting to 4.6 and being rock-solid stable required changing THREE settings, so Multi, Vcore offset and LLC.

These changes are from default of course.

As everything else is default, I preserve the idle states so the CPU clocks down to 1.6ghz at idle. Keeps my system cool and quiet when just doing desktop stuff. The power of the OC is only unleashed when I game or bench/stress.

Apologies again for the excess of information, I don't know what prior experience you might have with overclocking. The fact you were running a fixed clock suggests you're using the "old good advice" from prior gens of CPU...meaning you're in effect changing things you don't need to.

Don't take it as any sort of failure to restore to defaults and starting again, this is how you learn.

I can now easily re-apply my OC from defaults, as you can see it's three simple steps! However it took me a while to get to this point I can tell you!

Keep going, this part can be fun! Just keep an eye on your CPU temps and try not to let your vCore go above about 1.4v under IBT load and you should be fine. Things can be pushed higher but as we're just aiming for 4.5 there's not need to get into that just now - unless you want MORE information on more settings?

Good luck and enjoy playing!

Scoob.

 

[zan76]

right overload right cleared bios back to default....will change the two thing u mentioned

 

[Scoob]

right overload right cleared bios back to default....

Cool, try my settings mate and see how you get on. If you're not stable and further refinement is required I'd suggest a slight (0.005v) bump to vCore offset would be your first call, though I'd not expect your to need more than 0.050v for 4.5 - that is good for 4.6 for me.

Bumping LLC can help however I did not need to touch that until 4.6ghz.

Report back with your experiences and we'll go from there.

Scoob.

 

[sheroo]

In my experience (limited, I don't buy lots of new kit or review it!) setting vCore directly stops it reducing when the CPU idles, setting it via offset however allows it to drop at idle - which is great for your temps when you're just doing desktop stuff.

I'm using an Asus P8P67 Deluxe board and I'm not using an offset - just a straight voltage - but mine drops back to 1.6 when idling.

The settings for my overclock were very simple:-

LLC - Ultra High

VRM Frequency - manual

VRM Fixed Frequency mode - 350

Phase Control - Extreme

Duty Control - EXtreme

CPU Voltage - Manual

Then just tweak with the voltage and mutli. I'm running 1.315v @4.4 under a Noctua D14 avg idle cores 32C.

 

[Scoob]

I'm using an Asus P8P67 Deluxe board and I'm not using an offset - just a straight voltage - but mine drops back to 1.6 when idling.

The settings for my overclock were very simple:-

LLC - Ultra High

VRM Frequency - manual

VRM Fixed Frequency mode - 350

Phase Control - Extreme

Duty Control - EXtreme

CPU Voltage - Manual

Then just tweak with the voltage and mutli. I'm running 1.315v @4.4 under a Noctua D14 avg idle cores 32C.

Cool, thanks for the info sheroo.

Goes to show how things differ slightly between board and chips.

Some of the additional settings you mentioned I needed to go beyond 4.6, but certainly not for 4.5. But again, everything is different.

Note: you are right re: manual base vCore and vCore offset - this is true for my ASUS too, I miss-remembered that bit. It was my old MSI that didn't drop the vCore at idle and, interestingly, my friends £300 gigabyte (I think) board that needed vCore changing via offset to have it drop at idle - else it stayed fixed. Weird.

I'm surprised you needed such a high LLC for 4.4 and change the VRM freq, phase and duty, but it just shows how different things can be!

I still think that changing the minimum amount of things first time out is the best way to go. If zan1976 does not manage to get stable with the most basic changes we can certaily look at the other options too. I hoped that, like me, he'd get away with minimal changes for just 4.5 - I think I've already confused him enough don't you think?

For me 4.5 was "easy" yet 4.6 needed and addition thing changing. 4.7 and beyond I needed the likes of VRM freq and phase control too. Once more reinforcing that the thresholds differ from chip to chip and chipset to chipset.

I will actually double check my settings next time I'm at my gamer - currently on my Q6600 as in my sig.

Cheers,

Scoob.

 

[zan76]

right scoob here we go 4.5 with the offset +00.40 like u said

1.6ghz at idel 1.032 volts

underload

4.5 ghz volts are 1.3v ish

all other settings are at default

 

[sheroo]

right scoob here we go 4.5 with the offset +00.40 like u said

1.6ghz at idel 1.032 volts

underload

4.5 ghz volts are 1.3v ish

Now that's interesting, because I'm not using an offset @1.6 my vCore stays at 1.312v. Does it change your temps and the load from the wall?

 

[zan76]

Now that's interesting, because I'm not using an offset @1.6 my vCore stays at 1.312v. Does it change your temps and the load from the wall?

well temps idel are 21 27 27 25

underload the are 49 55 57 56

 

[sheroo]

well temps idel are 21 27 27 25

underload the are 49 55 57 56

Sorry if I missed it - what cooler are you using?

 

[zan76]

Sorry if I missed it - what cooler are you using?

Noctua D14

 

[Scoob]

Now that's interesting, because I'm not using an offset @1.6 my vCore stays at 1.312v. Does it change your temps and the load from the wall?

Sheroo: Ah right, I think we might have been talking at cross purposes earlier...blame me being tired.

Yes, that's the point of using offset, it means you run at the proper VID for 1.6ghz!

How I understand it is thus:

Each multi has a VID, with offset we're saying to the motherboard "look at the CPU's VID for a given mutli and give it this much extra." These also seem to only apply under load as my idle vCore hasn't changed since stock...well not more than +/- 0.020v or so which I put to natural variation.

PC draws less power at idle, but I don't think there's much in it...temps are certainly lower though.

zan1976: That's more like it and what I'd expect to see... Your idle vCore is slightly higher than mine but I'd not worry about that - my friends 2600k idle is about the same as yours.

Any mouse issues again or does that look ok now?

I assume my under load you've run IBT standard test one again? If so that's great!

I recommend you run some games and see if everything behaves. As I've mentioned previously sometime a PC might stress-test perfectly but not be so stable in games.

Some good temps you're running there too, with those idle temps I assume the room your in is a little chilly! Interestingly my core 0 is markedly below the other cores too.

Personally, when stressing, I run additional tests limiting things to just a pair of cores using affinity. This simulates gameing scenarios better as only two cores are pushed hard - many of my games only push one or two cores. Let's not worry about that just now though

Just use your PC how you like to use it and report back - hopefully you're good to go at 4.5ghz and game etc.

Cheers,

Scoob.

 

[Scoob]

Noctua D14

Good cooler, generally out performs my closed loop water block. I would have gotten a good air cooler myself, but was worried it'd not fit due to me having the high-profile Vengeance ram.

Scoob.

 

[zan76]

Good cooler, generally out performs my closed loop water block. I would have gotten a good air cooler myself, but was worried it'd not fit due to me having the high-profile Vengeance ram.

Scoob.

scoob are u on msn or facebook were we can chat in real time

 

[Scoob]

scoob are u on msn or facebook were we can chat in real time

Just replied to your PM...I could possibly pop onto MSN if you're really struggling but sorta occupied at the mo. Sounds like you're doing well though! No issues I hope?

Scoob.

 

[zan76]

Sheroo: Ah right, I think we might have been talking at cross purposes earlier...blame me being tired.

Yes, that's the point of using offset, it means you run at the proper VID for 1.6ghz!

How I understand it is thus:

Each multi has a VID, with offset we're saying to the motherboard "look at the CPU's VID for a given mutli and give it this much extra." These also seem to only apply under load as my idle vCore hasn't changed since stock...well not more than +/- 0.020v or so which I put to natural variation.

PC draws less power at idle, but I don't think there's much in it...temps are certainly lower though.

zan1976: That's more like it and what I'd expect to see... Your idle vCore is slightly higher than mine but I'd not worry about that - my friends 2600k idle is about the same as yours.

Any mouse issues again or does that look ok now?

I assume my under load you've run IBT standard test one again? If so that's great!

I recommend you run some games and see if everything behaves. As I've mentioned previously sometime a PC might stress-test perfectly but not be so stable in games.

Some good temps you're running there too, with those idle temps I assume the room your in is a little chilly! Interestingly my core 0 is markedly below the other cores too.

Personally, when stressing, I run additional tests limiting things to just a pair of cores using affinity. This simulates gameing scenarios better as only two cores are pushed hard - many of my games only push one or two cores. Let's not worry about that just now though

Just use your PC how you like to use it and report back - hopefully you're good to go at 4.5ghz and game etc.

Cheers,

Scoob.

so far no probs mouse seems ok yea did ibt test stable so should i just use it this way for a few days to see if everthing is ok then report back ....

 

[Scoob]

right scoob here we go 4.5 with the offset +00.40 like u said

1.6ghz at idel 1.032 volts

underload

4.5 ghz volts are 1.3v ish

all other settings are at default

Actually your load vCore is a little less than mine was at 4.5. At 4.5 running IBT I usually saw around the 1.336v mark. If you're stable at that then that's great, if you're have any stability issues then you've room to either i) add more vCore offset, or ii) Bump the LLC up a notch.

I didn't need any more LLC for 4.5, but I did for 4.6 so possibly your CPU's threshold is sooner - or if everything's stable then you have a better chip than me!

Just saw your new post while I was typing... Excellent! Use your rig normally for a few days & report back

Cheers,

Scoob.

 

[zan76]

Actually your load vCore is a little less than mine was at 4.5. At 4.5 running IBT I usually saw around the 1.336v mark. If you're stable at that then that's great, if you're have any stability issues then you've room to either i) add more vCore offset, or ii) Bump the LLC up a notch.

I didn't need any more LLC for 4.5, but I did for 4.6 so possibly your CPU's threshold is sooner - or if everything's stable then you have a better chip than me!

Just saw your new post while I was typing... Excellent! Use your rig normally for a few days & report back

Cheers,

Scoob.

well right now my llc is off

played a few games it seems ok

 

[zan76]

right had too bump up offset up to 00.45 and llc to high as some program started in a non reponding way

 

[Scoob]

right had too bump up offset up to 00.45 and llc to high as some program started in a non reponding way

Ok, not too surprising re: LLC, after all off is not default..unless yours defaults to off which I'd consider odd.

Did you test both changes independantly or just change both at once?

Either way, if you have stability now then that's good

Cheers,

Scoob.

 

[zan76]

i tested both changes independantly.