Turbo Boost not working

MatsyLR

MatsyLR

MatsyLR

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Any idea why turbo boost is not working?

I have a i5 2500k.
It works fine when I don't OC, goes down to 1.515mhz odd and back up to 3.3mhz when gaming etc.
But when I use the OC button on my MSI motherboard, it stays at 4.2, all the time, no matter what. I've checked and turbo boost IS enabled in the bios, it just doesn't function...

Any ideas?
 
Which MSI motherboard do you have? I have just set this up on mine. You have to find the "CPU features" section at the bottom of the overclocking menu and set the multiplier limit to what you want the cpu to boost up to when stressed.

If you use OCGenie you will have a 24/7 overclock with MSI boards.

Oops, just saw your sig for motherboard
 
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I have a msi p67a-gd53 b3.
I am using the OCgenie button for the OC, that makes the OC stay all the time? no clocking down when idle etc?
I don't want to manually do the overclock because I dont want to mess around with the voltages (I can't just put the multiplier to 4.2 and leave it at that can I? the voltage needs to be changed....)
 
Also, using the above method will usually mean your vcore will be set to adjust automatically depending on the overclock you set.

Depending on which model of motherboard you have, it may be worth looking for vcore offset settings to keep the auto voltage under control as it can sometimes pump more voltage through than needed. Think this is only on the more expensive boards though.
 
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Depends on the other settings in your bios. If you have not changed them from default I would guess they are all set to "auto" anyway. Which means when you say, adjust the multiplier the bios will tweak the voltage etc.

So unless you are going for mega overclock, the bios can do most of the work itself on auto.

If you use ocgenie I am pretty sure it will not throttle down when idle.

Does your bios have a "CPU features section" at all. Or somewhere where it list four max multiplier (core ratio) limits? If you are happy for the bios/mobo to sort out the voltage just change these values and these will tell the CPU the max it can boost to.

If you want specific voltages it gets a little more involved.
 
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http://forums.overclockers.co.uk/showpost.php?p=22525776&postcount=49

If you look at the pictures in this post. The second image shows the overclocking settings page,mat the bottom there is "overclocking profiles". A few lines below that is the CPU features section to click on and where you need to go to set the max limits. Obviously turn off ocgenie if you are going to use this method.

I am assuming you have the clickbios by the way.
 
Yes my bios has a CPU feature section I can easily change the multiplier, everything is on default with the OCgenie off, so If i change the multiplyer from 33 (default) to say 4.2 (the same clock the OCgenie puts it at) the motherboard will take care of the voltage needed and the intel turbo boost will still work?

Also my bios is totally different to that...its just blue :P
 
Yes, in the CPU features section there should be a different "core ratio limit" entry for the number of cores you have active, four entries in total. Change those to 42 if you want it to clock up to 4.2 and leave everything else as default/auto and make sure turbo boost is enabled.

Hope that helps. I am going off what I know from my board.
 
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Make sure you change the values in the core ratio limit section. If you just change the multiplier on the main overclocking menu that will do the same thing ocgenie does.

You can leave the bios to sort the voltages, yes. Depends on what voltages your bios decides to use and you being happy with them. Once you have it working use CPU-z to check you are happy with the voltages.
 
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I changed the option "Adjust CPU core" from 33 to 42.
Intel turbo boost is enabled.

The core is at 4.2 idle again....:/ voltage is 1.328

EDIT: I can't change the core ratio limit section, It has the numbers like 37, 36, 35 and 37 or what ever, but I can't change any of them.
 
I have had a quick look at the manual on MSI's website for your mobo. It does look different, but I think the pages etc basically have the same details on.

The "adjust CPU core" field is the wrong one. That is a 24/7 overclock, and is essentially what OCGenie changes.

When you say you cannot change the "core ratio limit" values, do you mean you cannot click them. Can you highlight them, then use the + - keys to change the values?

If you cannot change the at all, I can only guess you may still have OCGenie enabled, or another setting that stops you from changing the values.


I take it you can see four "core ratio limit" lines?
 
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Yes i can see the core ratio limit lines, 4 of them.
I can't click on them, nothing happens.
OCgenie is off.
I can't see an option that *enables* them :/
 
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Do you have EIST enabled as well as turbo boost? I guess there could be a setting throwing things off.

I would personally be tempted to clear the CMOS and start from scratch. Bear in mind this will obviously wipe any other settings you have and I'd hate it to mess up something else in your system that currently works such as RAID etc. Up to you on this one.... Depends how much customisation you have already done in the bios. Maybe take pics of each page first so you can always go back.

What version is your bios? Is it up to date?

Not sure if anyone else has any ideas before you do that?
 
I already reset the bios, and in the process I thought I had screwed up my SSD :P as it wouldn't boot
Just changed the sata mode back to ACHI or w/e its called and unplugged it and plugged it back in, working all good lol, thank god.

Didn't do anything.

Yes bios is up to date.
Yes EIST is enabled.

I've tried turning things off and on (enabled/disabled) and nothing lets me change the values....
 
http://forums.anandtech.com/archive/index.php/t-2167456.html

Are these settings any good? Maybe worth a shot?

I only ask this again because it took me a while to work out how to adjust the ratio limits. Everything else in the bios works with mouse clicks, but I found the ratio limits work in a similar way to the old bios versions, where you have to use keyboard + or - keys and I even think is was specifically either the number pad ones, or the + and - near the backspace key. One set worked the other did not.

As I found I had to use the keyboard to change these settings, the mouse would not let me change them. Do you know if your keyboard works in the bios? Do you have legacy USB support turned on etc, do you have an old non-USB keyboard to use if it looks like your keyboard does not work with your bios.
 
Ah haaaa! got it to work.

I was trying to use the + and - buttons to the left of my enter button.
The ones on the numpad worked!

Idle: 1596 mhz odd @ 0.950 v
load up a game : 4190 mhz odd @ 1.240 v

That ok? Thanks for your help man :)
 
My vcore sits around 1.136v, sometimes at 1.2something as well, so pretty similar.

You can go more a little hardcore and start playing with vcore offset (it will have values of -0.05 and similar) to tell the mobo hold back the vcore by that much(not all mobos have this, mine does not) People only tend to do that if the mobo tries to pump 1.3+ on auto. If it is stable and your temps are okay I would personally leave it. I used to tinker loads with settings, but in my older age I am fast joining the group of if it ain't broke.....

At 4.2, voltages can honestly be left as they are if they are at 1.24 in my opinion. Just watch temps, what cooler have you got.

Guess it is up to you how far you go checking it is stable, ie running prime95 etc.
 
Well in the winter I already left the CPU OC'd via the OC genie because the temperatures where fine the way they where (as it was cold :P) with the 1.3+ v OC genie forces so the 4.2 OC is stable, I don't really need to put it any higher, I only used OC genie to get alittle extra kick out of my processor without hassle. Just yesterday after reading some stuff about people with higher OC's with much lower voltages I thought to myself why is mine so high????

I have a artic freezer 7 pro, CPU temps are fine as far as I'm aware, hovers around 65 ish running prime95 and 42 ish idle (its quite hot and humid here atm, just sitting here I'm boiling...)

Also I have no vcore offset option in my bios, first thing I looked for ;p
 
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You might find your idle drops a bit now the vcore lowers to 0.950v without the permanent ocgenie overclock. It get around 32-34 on idle and the same near enough on load around 66-70, but the ivy's kick out a bit more heat. I am a bit OCD with cabling though, so might explain lower idle temps.

Glad I could help
 
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