Few overclocking questions.

Sycho

Sycho

Sycho

Soldato
Joined
16 Nov 2004
Posts
4,114
Location
London
Do you guys have speedstep on or off? i have a stable 4ghz profile though my idles seem a bit warm ranging from 39c-46c lately depending on the room temp on each core though my load temps are very good as in gaming i rarely hit 60c on any and if i do it's only two or so.

Is it worth having on? or does it make the overclock unstable? it seems to go around to 3.3ghz when it's on for me which i guess isn't worth it and may aswell just leave off?

Also what is everyone's idle/load temps on i7s here and what cooler/case combo? (preferably people with 4ghz too)

Thanks.
 
I leave mine off, I am watercooling and my idle temps for 4ghz is around 35c ~.

Yours seem perfectly normal.
 
i have an i7 920 @ 4GHz and i am hitting 90c in p95 :(
my idle is around 46c. I have TRUE with an akasha apache pushing air though it.
 
At 4ghz, (speedstep off), my 920 idles at, 35-33-35-33. Loads at, 64-59-61-58, air cooled with a prolimatech super mega and dual akasa vipers at 900 rpm. 39-46c is grand at idle, loads are the ones to watch.
 
i don't know what's wrong with mine :(
i have speedstep on because i want it to drop the multiplier when it is idle.
i only have a single apache pushing air through the TRUE. Right now I have the case panels remove after I reseated the heatsink and after 20 mins of p95 i am at 83c.
i don't know why my temps are so high. the apaches is at full blast by the way.
 
Burntest core temps usually are 68-70c max, this is at maximum, i am using Megahalems, MX-3 and 2 Viper fans which seem to be incredibly good for load temps yet not that loud.

I am using 1.28v too for the clock, Antec 902 and i think i will just take speedstep off then.(also have 3.6ghz QPI which i am told is high and probably explains why i need 1.32v for the QPI voltage.)

Cloud you could try a viper fan on it or two, also MX-3 paste is very good for load temps and maybe your cooler wasn't tight enough?(your cooler is good and should be near the same temps as mine at least.)

Oh yeah if i enabled Turboboost would it mean 4.2ghz? i am using 20x200 at the moment.
 
Last edited:
Leave SpeedStep enabled, it shouldn't affect stability at all. There's no reason to turn it off unless you're having problems.

C-States will probably affect stability though since they can cause voltages to drop too far, resulting in random BSODs whilst idle, so turn them off unless you're sure you're stable at your current OC with them on.

Enabling Turbo Boost will give you 4.2 GHz but of course you'll need to test stability again with this on.
 
Would having turbo boost on mean i may have to up the voltage a notch? also it isn't quite speedstep on my board it's more what you say i.e the c-state thing and lowers voltage when idle so turned it off as i been stable without not one crash.
 
Well SpeedStep and C-States are two different things and you asked about SpeedStep initially...

Anyway, Turbo Boost might require a slight bump in CPU voltage but shouldn't require any increase in Uncore voltage. Might as well try it and see what you get - your temps are great regardless. I use it because it means I can lower my BCLK for the same speed (191x21 instead of 200x20).
 
Last edited:
c-states can improve power savings but under specific scenarios and could actually incur performance penalties. i don't think it is worth looking into very much. on the other hand speedstep should have no effect on stability since it just lowers the multiplier.
 
Ive used the same settings with turbo on and off, (2 bios profiles saved) 20 x 200 runs on the same voltages as 21 x 193 for me.
 
Do not think my board has speedstep it's a Gigabyte UD3R but had the c-state thing which i thought was similar and Setter did turbo boost make your temps increase much on idle/load? was it worth using?
 
No difference in temps at all, at load, once the cpu go's above 60c my vipers are set to run at full speed. C1E is another thing to look for for speedstep, tbh your temps are grand mate, ive seen a wee bit of an increase on mine lately, probly down to running overclocked sli gtx 470 gpu's, they tend to run very warm.
 
Sycho said:
Burntest core temps usually are 68-70c max, this is at maximum, i am using Megahalems, MX-3 and 2 Viper fans which seem to be incredibly good for load temps yet not that loud.

I am using 1.28v too for the clock, Antec 902 and i think i will just take speedstep off then.(also have 3.6ghz QPI which i am told is high and probably explains why i need 1.32v for the QPI voltage.)

Cloud you could try a viper fan on it or two, also MX-3 paste is very good for load temps and maybe your cooler wasn't tight enough?(your cooler is good and should be near the same temps as mine at least.)

Oh yeah if i enabled Turboboost would it mean 4.2ghz? i am using 20x200 at the moment.
Click to expand...

I am using the thermalright paste that came with the TRUE. I reseated the heatsink just now and after 30 mins of prime I am at 86c. Doesn't look like anything improved because I dropped the vcore a couple of notches because I am testing some new settings. What is the difference between Viper and Apache? They look the same to me apart from a little higher RPM on the Viper which I am not too keen since this PC is opposite my bed and I need it to be quiet when it is idle.
 
The viper will be as quiet as the apache at idle, its only under load that the viper will hit it's highest speed and get louder, (1900 rpm), my two vipers are currently at 900 rpm, inaudible.
 
Is the airflow in your case optimal? i cleaned out my dust filters recently which helped my temps a lot....they were hitting 86c in Burntest.

What temps do you get doing 1 testrun of Burntest this very moment on all cores? if you say you re-seated the cooler fine then i can only think it's the case which probably would be resolved by getting a HAF-X if you want quiet fans yet amazing cooling performance amongst one of the best.

Maybe post a few pics here of the inside of your case for people to see to try and help.
 
i dunno, mine seems to be running it at max rpm all the time. i have disabled q-fan in the bios so it doesn't scale depending on load or temps. i am thinking now that my major problem is not actually the fan on the TRUE but rather the 140mm intake fan. I doubt it pushes enough cool air in the case.
 
You must log in or register to reply here.
Back
Top Bottom