Just upped FSB, multiplier issue

[newconroer]

I've just bumped (in stages) the FSB to 1333. The Bios settings were:

Multiplier 9x
FSB-RAM Unlinked(want to focus on the CPU for now)
FSB 1333


The auto update column shows that my new frequency will be 2998.2 etc at 9x.
My stock RAM at 533 5/5/5/15


However when I boot into XP, CPUZ shows 2000 mhz, BUS 333 at 6x multiplier.
My RAM has also dropped to 267 at 4/4/4/12

To make things more confusing, Coretemp is rating my core at 3000.10


I could assume that CPUZ is just bugged or mis-reading, yet that doesn't explain why the RAM is showing those stats in both XP AND the BIOS, if anyone could enlighten me...

 

[newconroer]

Note: I didn't mean for a new post: clicked the wrong 'advanced' button instead of advanced editing anways...


Update:

FSB-RAM unlinked

FSB 1333 at 9x confirmed by multiple programs, Crystal, Ever, Coretemp etc. Not sure what's going on with CPUZ.

RAM at 333(667) 1:1 4/4/4/12

GPU 600/900


Going to run overnight stress soon, guess all that's left now is to get some cooling on N/S bridges and away I go.


Fortuantley for now, my idle and load temps on the CPU and GPU are only up by 1 at idle and 2-3 under load.

Still wish I knew what's up with CPUZ.

 

[infrared]

hmm, odd. cpuz is rarely wrong. Is it the latest version?

You have your system set up quite nicely. Is that with stock cooling?

EDIT:

just re-read your post. CPUZ isn't wrong.

Intel Speedstep is causing the cpu multiplier to drop when it's not under load. You can usually dissable this from the bios. If you run a stresstest, you will see the multiplier rise

 

[Random Murderer]

just re-read your post. CPUZ isn't wrong.

Intel Speedstep is causing the cpu multiplier to drop when it's not under load. You can usually dissable this from the bios. If you run a stresstest, you will see the multiplier rise

QFT!
exactly right!
go into bios, speedstep is usually in advanced or cpu settings...

 

[newconroer]

Ah, but I left that bit out because it isn't enabled. The only throttling feature I have on, is voltage(does Speedstep encompass that?)

I did run some applications and yes, it is being throttled, will have to pinpoint by what, if not Speedstep.

Though thinking, I may not mind that, if it's keeping my temps the same....


Speaking of temps, yes unfortunatley it's stock cooling, as I've just only recently decided to fore go any water cooling and just put some decent airflows on the GPU, CPU, and NB/SB. I know SBs run quite hot, hope I don't burn it out before then ...


Being new to C2D I'm a bit miffed about temperature readings. I've looked over and through documentation regarding Tj 0 , Tj1 and the Tcase ratings. I am to understand that the sum of both core temperatures is irrelevant. The CPU temperature is supposed to be lower than the individual cores, and the Tjunction will always be the hottest...?

If this is correct, I become further miffed, because the documents discuss Tcase to relate to C2D, and Tjunction to relate to C2D mobiles. Which leaves me wondering what should the Tjunction be at with a normal C2D?


At the above settings I am at :

Core :25/25 idle 43/43 load (Coretemp, BIOS, TAT rating)
CPU : 34 idle (SpeedFan rating)
Tjunction: 85 idle (Coretemp rating)
Delta to Tjunction 55 idle (Coretemp rating)



Am I supposed to be concentrating on the CPU listing from SpeedFan, or the Core listing from Coretemp/TAT?
As far as I could determine, the two cores worked within the DTS formula gives your Tjunction.
Mine sits at 85 constantly, never changing. Is this the ceiling or?




Fotunatley I haven't BSOD with the OCs, just wish I could get my head around the variables so I can measure future cooling devices more effeciently.