Overclocking i5-3570K on Asus P8Z77V-LK

Galatian

Senior member
Dec 7, 2012
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Hey,

I have been reading several threads here, but nothing seems to address my problem:

I overclocked my i5-3570K to a stable overclock of 4.5 GHz using a positive offset value. But I can't get higher then that. I can put in a higher multiplicator in the UEFI, but it will stay at 4.5 GHz.

When I use the ASUS AI Suite II to change the multiplicator it will accept higher multiplicators but I would rather not use a software solution.

Do I have to turn of Turboboost or any off the sleep states? Or is this perhaps a limitation by ASUS for their cheaper MoBo offerings?

I can't reach ASUS customer service, because they always require a serial number, which I figures out is actually not on the board but on the carton the board came in (actually not sure if this is legal here in Europe/Germany).
 

Puppies04

Diamond Member
Apr 25, 2011
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What temps are you getting under stress @4.5? Unless you got very lucky or have exotic cooling you are reaching the upper limit of that chip anyway.

I haven't heard anything about Asus putting a limit on their OCs on any of their unlocked boards. Are you sure you aren't crashing and the bios is reverting back to its last known stable state when you try and push it above 4.5?
 

Galatian

Senior member
Dec 7, 2012
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What temps are you getting under stress @4.5? Unless you got very lucky or have exotic cooling you are reaching the upper limit of that chip anyway.

I haven't heard anything about Asus putting a limit on their OCs on any of their unlocked boards. Are you sure you aren't crashing and the bios is reverting back to its last known stable state when you try and push it above 4.5?

Maximum is 80 degress Celsisus with IBT. As I can go higher with the ASUS AI Suite II, I don't believe it is crashing.
 

Galatian

Senior member
Dec 7, 2012
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I have been trying a few things out. I set Windows Energy Options to highest power. Turning off all the C-Sleep States does not help. Turning off EIST also does not not help. I have then turned of Turbo-Clock completely and have set the normal core multiplicator to 46. It would still only show me 4500 MHz. At this point I really don't know what else to do. On top of that I can't even reach any ASUS representative, because they need some Serial number from my motherboard. There is some kind of Barcode on my MoBo but the German ASUS Website does not take the number and instead returns some Taiwanese Error Message. Piss poor customer service ASUS! From my point of view this was my first and last ASUS MoBo.
 

Puppies04

Diamond Member
Apr 25, 2011
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Maximum is 80 degress Celsisus with IBT. As I can go higher with the ASUS AI Suite II, I don't believe it is crashing.

What settings on IBT? Try 20 runs on very high and post a screenie with HW monitor. If you really are hitting 80°c on your hottest core at that point then you have some headroom (not a lot but some) but my immediate thoughts would be that you would be hitting closer to 90°c with those settings.
 

Galatian

Senior member
Dec 7, 2012
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What settings on IBT? Try 20 runs on very high and post a screenie with HW monitor. If you really are hitting 80°c on your hottest core at that point then you have some headroom (not a lot but some) but my immediate thoughts would be that you would be hitting closer to 90°c with those settings.

Ok here we go. I did as you said.

72c5md.jpg
 
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Puppies04

Diamond Member
Apr 25, 2011
5,909
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Ok here we go. I did as you said.

72c5md.jpg
e6l5eif7_jpg.htm
e6l5eif7_jpg.htm
IBT%20Temp.jpg
IBT%20Temp.jpg


Yep, you have headroom there, sorry for doubting you but you have a nice chip there, certainly not the norm.

Back to your problem, what bios revision are you running on and when you enter a higher multiplier than 45 does it save that number after you have booted windows or has it changed back to 45? Also have you set AI suite to control your OC? I am just thinking that is might be over riding your bios settings, try uninstalling it while you check things out.
 

Galatian

Senior member
Dec 7, 2012
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Yep, you have headroom there, sorry for doubting you but you have a nice chip there, certainly not the norm.

Oh I didn't knew that. I thought 4,5 GHz was considered a mild overclock for the 3570K.

Back to your problem, what bios revision are you running on [...]

Should be the newest one available: 0908

[...] and when you enter a higher multiplier than 45 does it save that number after you have booted windows or has it changed back to 45?

It is saving the multiplier. I can always see that number in the BIOS.

Also have you set AI suite to control your OC? I am just thinking that is might be over riding your bios settings, try uninstalling it while you check things out.

I don't even use the AI Suite. I did when I was trying things out, but I didn't want to be limited by it, so I decided to do a "normal" overclock through the BIOS.

BTW: Thanks for your help so far! Much appreciated!

EDIT: I have found my serial number on the bill, so I was able to contact ASUS Germany. If past experience is any comparison, they won't be very helpful though, but let's give them a chance.
 
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Puppies04

Diamond Member
Apr 25, 2011
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I don't even use the AI Suite. I did when I was trying things out, but I didn't want to be limited by it, so I decided to do a "normal" overclock through the BIOS.

Is it still installed on your PC though?

And just to confirm 4.5GHZ is getting towards the top end of air cooled OC's on your chip, the 2500K was slightly better and 4.6-4.8 was the norm at reasonable volts. IB pushed the limiting factor to temps for 9/10 users. You are almost certainly going to have to start pushing voltage higher and higher for every 100mhz jump over 4.5ghz if I were you I would stick with what you have, realistically you are looking at getting another 5% on top of your current OC unless you move to extreme cooling methods. Is it really worth it?
 

Galatian

Senior member
Dec 7, 2012
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Is it still installed on your PC though?

No, I deinstalled it. I try to keep my Windows install as clean as possible. My rig is strictly for gaming. Everything else is being done on a 13" rMBP.

And just to confirm 4.5GHZ is getting towards the top end of air cooled OC's on your chip, the 2500K was slightly better and 4.6-4.8 was the norm at reasonable volts. IB pushed the limiting factor to temps for 9/10 users. You are almost certainly going to have to start pushing voltage higher and higher for every 100mhz jump over 4.5ghz if I were you I would stick with what you have, realistically you are looking at getting another 5% on top of your current OC unless you move to extreme cooling methods. Is it really worth it?

Worth it? Probably not. This is my first rig that I built completely by my own. I'm just trying to get a hang on all of this. Now I have encountered that problem and I just would like to know whether I'm doing something wrong or if this is some kind of limitation from my motherboard.

My next desktop will definitely be with water cooling, as I am really enjoying squeezing every little power out of my system. In the mean time I'd just like to see how far I could go with my current setup. That's all ():)
 

Muyoso

Senior member
Dec 6, 2005
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Jesus, you hit 4.5ghz at 1.192v? I need around 1.368v to make 4.5ghz stable on my bum 3570k. Jealous.
 

Galatian

Senior member
Dec 7, 2012
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Figures: ASUS responded, but they just said they can't help with overclocks. They referred me to several German Forums...I responded to them yet again and asked the question whether the BIOS might be restricted.

Also I have looked around and in an older thread the user "dragontoe" had the same issue I'm having.
 

Galatian

Senior member
Dec 7, 2012
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Problem solved: I reset the BIOS and loaded my overclocking profile again, which seemed to help...running IBT on 4,6 GHz right now ;-)

Thanks for a the help though!

EDIT: Just as people have suspected: going to 4,6 GHz already increased the Temperature to 84 degrees Celsius and I had to add another 0,02 V to the offset value just to get it IBT stable. I'll probably just stick with the 4,5 GHz or I might get a closed loop liquid cooler. But I'm not sure if it is really worth the hassle.
 
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Loktar Ogar

Junior Member
Jul 22, 2013
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Hi Galatian, seems that we have the same BIOS issue that is not showing in OS once you updated the settings, i'm currently using the BIOS 1001 and the only way for me is to manually change it in AI suite II (Multiplier and Voltage) for my new settings...

There is a new BIOS came out today (BIOS 1103) for P8Z77-V LK. Hopefully this will address the issue in loading profiles / new setting in BIOS to show up in Windows. I will try it later today once i got home.

i5 3570K + P8Z77-V LK i got it stable at manual voltage settings. I'm still learning how to use offset voltage for optimal settings and getting BSOD.

4.2 Ghz @ 1.120V
4.3 Ghz @ 1.175V
4.4 Ghz @ 1.215V
4.5 Ghz @ 1.265V
4.6 Ghz @ 1.335V

for reference only...
 
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PhIlLy ChEeSe

Senior member
Apr 1, 2013
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Problem solved: I reset the BIOS and loaded my overclocking profile again, which seemed to help...running IBT on 4,6 GHz right now ;-)

Thanks for a the help though!

EDIT: Just as people have suspected: going to 4,6 GHz already increased the Temperature to 84 degrees Celsius and I had to add another 0,02 V to the offset value just to get it IBT stable. I'll probably just stick with the 4,5 GHz or I might get a closed loop liquid cooler. But I'm not sure if it is really worth the hassle.


What cooler are you using on that CPU? +.002 (84 degree's)your using the stock cooler?