z270e overlcocking help

Motorcharge

Well-Known Member
Looking for some guidance with this mobo and OC'ing my 6600k. Haven't OC'd an Intel processor in almost a decade on a Yorkfield lol
I've had really good luck in my AMDs in that I didn't need to change much in order to hit speeds and temps I was happy with.

Info in my sig is up to date. I got this particular CPU from a friend who had it at 4.5 with minimal voltage changes on an Noctua air cooler with idle temps around 40 and load around 55-60. Currently I have the basic OC'ing where you answer a couple questions in the BIOS and the board OC's on what it deems is safe. It has it at 4.3 clock speed, idle temp is 25 and it only hits 46 running Prime95 for a few hours.

Anyway, I'm familiar with the basics of adjusting the multiplier and voltage, but I'm a little lost in what settings I need to enable/disable/adjust withing ASUS's AI Tweaker on my board and couldn't find much surprisingly for 270 boards and the few things I could find where for boards by other manufacturers.

I use my PC almost exclusively for gaming and some very light video editing on occasion.
 

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Intel_man

VIP Member
I doubt you'll need to touch anything outside of the multiplier and the core voltage to squeeze 4.5ghz out of the 6600k.
 

Darren

Moderator
Staff member
I personally haven't OC'd on Intel hardware but just as a rule I disable any and all automatic overclocking or power saving settings. So basically just AI suite fully disabled. Obviously sacrificing efficiency but benchmarks and real world performance both have tangible benefits from doing so. It's just a matter of finding the sweet spot of clock speed and voltage within temp overhead.

Load Line Control (LLC) is something that should come into play to deliver consistent voltage under full load and prevent voltage droop. Increases stability but raises temps and stress on the hardware. Not sure it's even necessary in your case. A 6600k can do 4.5 without breaking a sweat really. Pretty sure those are seen in the upper 4.0GHz range regularly. Probably just disable all power efficiency stuff and lock it at 4.5GHz with the lowest voltage it's stable at. I'd personally shoot for higher than 4.5.
 

Intel_man

VIP Member
Yes, but I'm talking about the other settings in the AI Tweaker. Like power options and whatnot.
Extra stability could be had by disabling C-states, but you'll then proceed to run 4.6ghz (or whatever speed you're clocked at) the entire time. Usually, you don't have to disable it unless you're trying to squeeze that extra 100 mhz. Personally, I wouldn't disable it as you're getting little amounts of performance gain for a pretty decent hike in power draw and heat production at idle. It's one of those, I'm going to squeeze everything for this power run for benchmark numbers, so let's consume all the power. Not something you'd do for a daily overclock profile.
 

Motorcharge

Well-Known Member
Maybe I'm overthinking it and there's less to disable on this board than my AMD stuff had. I know on that I had to or enable a bunch of the stuff that was set to auto by default.

And I plan on going over 4.5, I only brought it up because I know that's what the PO had it on. Seems like most people hit 4.8-5 or so no problem on these.
 

Darren

Moderator
Staff member
Extra stability could be had by disabling C-states, but you'll then proceed to run 4.6ghz (or whatever speed you're clocked at) the entire time. Usually, you don't have to disable it unless you're trying to squeeze that extra 100 mhz. Personally, I wouldn't disable it as you're getting little amounts of performance gain for a pretty decent hike in power draw and heat production at idle. It's one of those, I'm going to squeeze everything for this power run for benchmark numbers, so let's consume all the power. Not something you'd do for a daily overclock profile.

Agreed with this. If I paid my own electric bill I'd probably do this but... I like my performance and I do get noticeable smoothness increases by locking it. I run my 1700 @ 3.9GHz 1.3625v locked but I know it's stable at 4.0GHz 1.375. Prefer lock it slightly lower than having it bounce up to the 4.0GHz.

If you don't know what something does just Google it. I had to do that a lot when I got my AM4 board. I've crawled thru a few Intel BIOS's and most options are pretty much the same, maybe with different naming. At the very least I disable all power stuff to find a good clock then downclock slightly from your highest speed and reenable power stuff.
 

Motorcharge

Well-Known Member
Ok so I wouldn't normally just jump in at 4.5 but I know it was stable on air (albeit with another case and cooling) and in my own system was stable with the "default" mobo OC at 4.3 and low temps.
Set the multiplier to 45 and left the voltage on auto. Only other settings I changed were syncing the cores. Booted fine, ran Prime95 for about 45 minutes and temps maxed at 74* with the fans running at ~40% but I noticed the core voltage was higher than I thought it should be for 4.5 at 1.31 so I went back in and set that manually to 1.28 and re-ran Prime 95 and temps dropped down to 66* max which wasn't enough to kick the fans up past 30% and it never budged off that though I only ran it for 30 minutes or so. Also ran these settings in RoG Realbench and temps never went over 55*. I did however notice that my ram is severely underclocked at 1900 instead of 3200. That's DRAM frequency though so am I reading it wrong? NB Freq shows 3900.

And yeah, I know I can Google each settings but there's a lot of them and it's a pita to do it on my phone while in the BIOS. I remember when I did my FX8350 I was able to find several guides with my mobo that gave me a list of which settings to enable/disable/give a value to.
 

Darren

Moderator
Staff member
There's another forum that I guess I can't formally mention that focuses on Overclocking on the... net ;) and they frequently have board specific guides. Or at least one with a similar BIOS.

Auto voltage in particular is not something I'd suggest. Leaving the power efficiency stuff on for downclocking at idle is fine but you really do want to manually set your voltage to at least a certain maximum voltage. If it scales down from that automatically fine but usually I advise a fixed voltage. Even at stock the voltage on my 1700 would go up to 1.42 at full load while capping at 3.7GHz in all "auto". I can run at 4.0GHz at 1.375v and getting better performance and lower temps without the voltage jumping around.
 

Darren

Moderator
Staff member
Yeah I didn't realize the voltage was on auto.

OCN sucks and no one ever responds to my threads over there.
Yeah I'll agree with that sentiment but they do have pretty good threads for a lot of boards, particularly the higher end ones. The Asus Crosshair VI AM4 board is 32K posts for one specific board...
 

Motorcharge

Well-Known Member
Stable at 4.8 on 1.375 volts. Jumped up a little into what I saw was low average voltages for 4.8 and still need to dial it back a little til I find how low I can get it. Was quite a bit of a jump in voltage from 4.7 to 4.8 and 4.9 will post but I can't get Windows to load without crashing so I'm thinking this is about it without trying to delid, though I don't think that would help either. Temps max out at 75 on P95, 68 on Realbench and 56 or so gaming. Idles at about 34.

I was really hoping to hit 5.0, but I guess I can't complain about 1.3 over stock lol
I could probably push it there, but I don't really want to bump the voltage past where it is now.
 

Intel_man

VIP Member
so I'm thinking this is about it without trying to delid, though I don't think that would help either.
You can drop around 15 degrees by delidding and replacing stock paste with liquid metal. Not necessarily something I'd do because of the serious hassle and dangers of ruining your chip.
 

Motorcharge

Well-Known Member
I'm on the fence about it. Buddy of mine has one of the delidding tools and just did his 7700k and there was nothing to it with that thing, but this cpu already runs cool so I dunno that I'd get all that much out of it by doing it.
 

Intel_man

VIP Member
I'm on the fence about it. Buddy of mine has one of the delidding tools and just did his 7700k and there was nothing to it with that thing, but this cpu already runs cool so I dunno that I'd get all that much out of it by doing it.
You would have to routinely every few months change the liquid metal paste between the die and the IHS. That stuff's not cheap if you get ones that perform really well.
 

Motorcharge

Well-Known Member
Yeah I don't see me doing it. Even pushing the voltage to 1.4 I couldn't get 4.9 to boot for more than a minute or two before locking up and even with that the idle temp didn't change so it's not temps holding me back. I'm just at the limit of this chip and delidding isn't going to change that. Even if it did I don't think I'd do it over just a .2 change in clock speed.
 

OmniDyne

Active Member
You would have to routinely every few months change the liquid metal paste between the die and the IHS. That stuff's not cheap if you get ones that perform really well.

Just to throw my 2 cents worth in here, as someone who did a delid on a 7700K back in mid-June; I can confirm that I've never once had to re-apply the thermal compound to the die.

This 7700K is overclocked to 5GHz, runs insanely cool on water, and the Aorus motherboard made it ridiculously easy to overclock.

If you're bored, and feel like being enthusiastic, it was a really fun adventure haha.

Oh, and it was EASY.
 

Intel_man

VIP Member
Just to throw my 2 cents worth in here, as someone who did a delid on a 7700K back in mid-June; I can confirm that I've never once had to re-apply the thermal compound to the die.
Are you using liquid metal between the die and IHS?
 
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