Question: 1055T and Turbo Core

[Daveburt714]

I'm dying to get my hands on an X6! Unfortunately, right now I can't afford a 1090T....
I could probably swing a 1055 on this next paycheck, although I know I wouldn't be totally happy with locked multis...

I'm still not 100% clear as to how Turbo Core works. Does it just raise the CPU multi by 2.5x reguardless of the HTRef clock, or does upping the HTRef disable Turbo Core?

Heres my thinking on this.
I know my board will run the HTRef at 300 stable on a 965.
If Turbo works the way I think it does (see above) I might be able to live with it at a setting like this:

HTRef @ 300
CPU @ 11.5x as a 6 core (3450) / 14x in Turbo (4200)
IMC @ 10x (3000)
HTLink @ 9 (2700)
Mem @ 1333 divider (1600 effective)

Could someone tell me exactly how Turbo Core works on the 1055T?

I know I should probably just wait a few more weeks until I can afford a 1090T, but I'm an impatient sort...

[zanzabar]

the stock multi should be 14 then with turbo it will take it 3 higher so 17, turbo also raises the voltage by 0.1 so u have to be careful if u want to use it.

[Daveburt714]

the stock multi should be 14 then with turbo it will take it 3 higher so 17, turbo also raises the voltage by 0.1 so u have to be careful if u want to use it.

You sure about that? I thought the last digit of the product code was an indicator of how much Turbo you got, 1055 = 500mhz Turbo (+2.5x) and 1090 = 400mhz Turbo (+2x)...

I'm sure it would take some tweeking, but I have pretty good water, I think I could keep temps in check at those clocks...

[zanzabar]

actually i was wrong u get 2x for the 1090 and 2.5x for the 1055 and whatever the stock speed rating is, is the speed without turbo
http://www.anandtech.com/show/3674/a...1055t-reviewed

so u get 14x normal and 16.5x tubro, so if u went 250mhz htt then that would give u 4125mhz 3500mhz no turbo

[Daveburt714]

Maybe I wasn't clear enough in my original post.
Thanks for your help man, but that still doesn't answer my question...

Does changing the HTRef, or lowering the CPU Multi disable Turbo Core on the 1055T?

I could probably live with 300x11.5x10x9 (300x14x10x9 under Turbo) if it still works when the CPU Multi and/or HTRef is changed...

Of course this is assuming you can lower Multis, I've never seen a locked chip that wouldn't let you lower Multis though.
In the past it's always just been locked to an upper limit.

[Zeus]

Dave, you know the Crosshair IV allows you to disable turbocore, right?

I've disabled it from the word go, don't want my speeds to go up and down without me controling the knobs.

[ridney]

I've disabled it from the word go, don't want my speeds to go up and down without me controling the knobs.

for some of those who have a dud chip, me included, where increasing voltage doesn't gain you any extra speed then turbo could be a blessing. i can run mine at 4.1 all cores with 1.475v and turbo at 4.3 at the same voltage. at least i can get it snappier at single threaded situations.

[Daveburt714]

Dave, you know the Crosshair IV allows you to disable turbocore, right?

I've disabled it from the word go, don't want my speeds to go up and down without me controling the knobs.

Actually, I didn't know you could disable AMD's Turbo Core from bios on this board Zeus. Your running a 1090T though. If I had one of those I'd probably turn it off too...

I was hoping with a 1055 I may be able to use it to my advantage to get +2.5x on the Multi....

Did you figure out how to turn off Asus's "Turbo Unlocker" from bootup?
It may not do that on a Thuban core but it does it on my 965 and it doesn't really work all that well...

It's not a big deal, I can click the off button once my machine boots, but I can't find a way to turn it off otherwise... It doesn't show up in uninstall programs or MSConfig/startup...

I may really have to give up my X6 jones' and just wait another month...
Still not sure I'd be happy with a locked 1055.

EDIT: ridney, are you running a 1090 or a 1055?

[Dumo]

14X multi, no 16.5 from bios boot up. With turbo V activated in windows, it will dynamically kicks in at multi 16.5

[Particle]

Turbo stays on when you mess with HTRef unless your board disables it explicitly. Many BIOSes have that option.

For example, on a 1055 if you raise HTRef to 250 MHz, you'll get a normal running speed of 3.5 GHz and a turbo of 4.1 GHz. It can really come back to bite you since the turbo P-state does NOT just increase voltage by 0.1V but rather has its own, independent VID. It's just another P-state. You may well be running an OC with 1.55V VID and then turbo kicks in and you are reduced to 1.45V at the same time unless you edit the P-tables.

[ridney]

i have done a some tests with turbo on an overclocked 1055T to show that somehow it might be a good idea to run it all along. if you're trying to squeeze a few extra fps on those graphics tests, then turbo is your friend.

here's a test summary, screenshots are shown below





A = 3.804 Ghz @ 1.375v, Turbo OFF, CnQ




B = 3.804 Ghz @ 1.375v, 4.279 Ghz @ 1.475v Turbo, CnQ




C = 4.121 Ghz @ 1.475v, Turbo OFF, CnQ OFF




D = 4.121 Ghz @ 1.475v, 4.279 Ghz @ 1.475v Turbo, CnQ OFF




E = 4.121 Ghz @ 1.475v, 4.279 Ghz @ 1.475v Turbo, CnQ

i think there's a bug with setting CnQ on, the down clocked cores stayed down and never went back to their default clocks during multi-threaded runs (cpu tests)




And a screenshot to show you that turbo really works with your oc'd x6 without bumping up your vcore (might be a bug though but it works )

[crazydiamond]

nice work ridney, some good info there... what mobo have you been using now? i have an x6 on the way but scared to test it in my 790 gd70.. think i might put it in the giga 890gx till i can get a formula (just spent my formula money on ssd )

[Daveburt714]

Thanks for the info folks! Very helpful.

Dumo: It may have just been in the process of switching but Turbo in that screen shot shows 16.5x on 4 cores not just 3, nice...

Particle: Does K10 stat still work with Thuban, or is there another easy way to edit P-States?

ridney: Very nice info, thank you, thank you...
Was you IMC running @ 3170 (317 x 10) or did you have to lower the multi?
That is exactly the range I was thinking of running it in (a little better in fact!).
At least it seems to be 3D stable so it has to be pretty close to 24/7 stability.

I may just go ahead and pick up a 1055 this weekend after all.

[kink]

The new PhenomMsrTweaker version allows you to easily modify all P-states. Thanks ridney for analyzing the Turbo mode. I'd be curious whether the Turbo still works when enabling custom C&Q...

[charged3800z24]

Dave,

With AOD, you can pick up to 5 cores for Turbo to work on. When OCing on the the Crosshair and MSI 890GX, I had to pick the turbo ratio when using the Multi method on the 1090T, The 1055T is different, but, I can OC the chip with turbo off and use the 16.5 multi for some extra help whith HT Ref OCing.

[ridney]

what mobo have you been using now? i have an x6 on the way but scared to test it in my 790 gd70..

i am using my 790FX-GD70 fresh from RMA, i was about to get an 890FX but the service center gave me a brand new board so i decided to put the mobo upgrade on hold until it breaks again i think it's alright to test with the msi, just try to limit your volts to 1.475v for now but 890 mobos should be best at oc'ing thubans.

Was you IMC running @ 3170 (317 x 10) or did you have to lower the multi?

i didn't oc my IMC as i'm limited with my ram speeds, i sent my ram set for rma and just grabbed a single stick from my wife's pc.

i think 1055T is the best bang for your buck, it's almost as good as a 1090T. don't forget that we still need to upgrade when 1095T comes so better to spend less today

[ridney]

just a little update: got my 8gb set of ram from rma today, it's a little bit better than the previous micron set i had, these are ver 7.1 PowerChip and runs at 1.6v rated speed so i did some further turbo runs with a little bit higher nb speed

4.117 Ghz @ 1.45v, 4.422 Ghz @ 1.55v Turbo, CnQ, Stock 4770s CF'd




4.117 Ghz @ 1.45v, 4.422 Ghz @ 1.55v Turbo, CnQ, 1000/1100 4770s CF'd

[Daveburt714]

VERY Nice ridney!

You've convinced me man, I'm gonna go pick up a 1055 this weekend...

I know your using a different board, but I have one question.
Did you have any problem getting you machine to post @ 305 on the HTRef?

I haven't put much work into it yet, but this C4F doesn't want to post at anything over 300, even when I add reasonable HT Voltage....

[ridney]

no problem with the htref post-ing up to 350+, but i did increase northbridge voltage (not cpu-nb) to 1.25v

[Grinder]

VERY Nice ridney!

You've convinced me man, I'm gonna go pick up a 1055 this weekend...

I know your using a different board, but I have one question.
Did you have any problem getting you machine to post @ 305 on the HTRef?

I haven't put much work into it yet, but this C4F doesn't want to post at anything over 300, even when I add reasonable HT Voltage....

Taken the plunge yet Dave?

I sold my 965 c3 yesterday, and bought a 1055t 1013cpmw. But as I said in the 790xt thread, I'm debating installing it now with my old socket a block, or waiting for the swiftech XT, 3X120 rad, and 850w ps to arrive on Monday.

I did want to know if you got much more headroom out of your c3 by using the c4f over the 790xt, mem multiplier and clocking aside?

[charged3800z24]

Dave, HT ref 305 is cake.... With your RAM you should have nice flexability.

[Grinder]

Dave, HT ref 305 is cake.... With your RAM you should have nice flexability.

Nice charged.

Well, I just bricked my 4850 Popping heatsinks off in order to reinstall stock cooler (new loop will be just cpu) and off pops a ram chip

It wouldn't be so bad if I hadn't just bought the 1055t, seasonic ps, xt wb, new rad...

[Zeus]

Sorry about your 4850 Grinder but the brighter side is that you can now upgrade. 5770 is cheap and a lot faster than a 4850

[Daveburt714]

Dave, HT ref 305 is cake.... With your RAM you should have nice flexability.

Thanks for the SS Jay. I went and picked up a chip today. I had some other things to do first so I got kind of a late start, but I decided to just do a fresh install of Win7 so I've been working on that for the last couple hours.
Im really hoping thats what was giving me fits with the HTRef clock and a fresh install will help.

Taken the plunge yet Dave?

Yep...
I got to pick it out of 20 samples, not sure how it's going to do yet, but it certainly has a low Serial Number...
(Sorry for the giant pic, Photbuckets acting screwy.)

I sold my 965 c3 yesterday, and bought a 1055t 1013cpmw. But as I said in the 790xt thread, I'm debating installing it now with my old socket a block, or waiting for the swiftech XT, 3X120 rad, and 850w ps to arrive on Monday.

I'd probably be tempted to try it now, but waiting till you had all the parts would probably make more sense.

I did want to know if you got much more headroom out of your c3 by using the c4f over the 790xt, mem multiplier and clocking aside?

I got a little more headroom with the Memory and IMC, not much on the CPU clocks though.

Oh Yeah, sorry to hear about your 4850...

[richierich]

nice, 002 sn.