OC'ing E8400 help please

this is my setup...

Apeiva X-Jupiter Jr.Case S Type
OCZ/GameXStream/700-Watt
Asus P5N-D Motherboard
Samsung HD250HJ 250GB (x2) RAID 0
Lite-ON 20X DVDRW SATA
3.0 gHz Intel Core 2 Duo E8400
XFX GeForce 8800 GT (x2) SLI
Crucial Ballistix Tracer 2 x 2gb
Vista Home Prem 64-bit

my problem is I have gone into the BIOS and overclocked my E8400 to 3.6 ghz and when I POST test it reflects that.

However, when I load into windows and go into CPU-Z it seems that my CPU is maxed at 3.15. Its weird cuz BOST says its 3.6 but other programs say its 3.15 which is right? Ive tried everything upping voltage to 1.35 raising all sorts of stuff and it seems like the max my CPU and mobo can do is 350mhz FSB x9 for 3.15 which is strange ciz I thought that if I went too far I would just get errors but its stable as a rock.

Now I know everyones CPU is different even if same exact kind but shouldnt this thing be able to do at least a little more than that? please help because Im very frustrated cuz it seems to overclock and runs great but it seems not to take it. Also speedstep and C1E and all that is off so is there any way to remove this ceiling or whatever is going on?

did you disable any and all energy saving features in your BIOS?

yessir says it right there in post. Its weird I cant for the life of me figure this out I KNOW it can go higher...

Lemme ask you guys something. I have been reading around a bit and I hear about a wall that you just cannot up the FSB any higher. So do you think that this would be the case that I cant up the FSB past 1400? This is a pretty nice board I thought so lemme know and if there is a wall wouldnt I be getting BSOD's and unstableness (a word?) or will it just not go any higher?

my bad did not get that far......

What speed are you running your ram at?
Linked or unlinked?

What is the NBv at?

So when you set it at 1600FSB in BIOS, it post at 3600MHz then in windows shows
3.15GHz; then when you go back into BIOS it says 1400FSB?

RAM is at 840 mhz unlinked. And kinda. When I POST its 3.6 windows is 3.15 then POST again and its still 3.6...

also NBvcore has been all over I put it from 1.2-1.58

your issue is quite weird TBH.

In CPUz it is showing 350FSB at a x9 multi but yet your BIOS shows 1600FSB??

The only thing I can say is to use the nvidia software to OC in windows to see if you can get it to 400FSB.


There is something missing here, just don't know what.....

tried it and it locks up when I try to up it in the Nvidia control panel.

You think my RAM is holding me back?

if it is unlinked then no.

For a E8400 to have a hard time hitting 3600MHz is unheard of. It does not even require a voltage increase. I have a 780i board and it clocks just as well as a intel chipset. I would assume that the 750i would be comparable.

Which release are you using for BIOS?

when you try to OC in windows are you getting freezes with a 5MHz jump?

BIOS 0502 and I can get a small jump but it BSODs I tried 355 with 1.35 vcore and got a BSOD

Ok new stuff going on I can get a small jump with AIsuite.
the vcore on it is way off tho set it to 1.35 in windows and in BIOS it was 1.05 so lemme mess with it for a bit but any ideas please post

ok scratch that it still reverts back to 3.15...

ok BSODS were because whenever I use AIsuite to OC it links my RAM and it was way too high speed so I used AIsuite and reset then went into BIOS and synced it to bring it down to 750. But yea it still brings it down to 3.15 no matter what...

What version of CPUz are you using?

You said that you stress tested at 3.15GHz, did you verify during the stress test that CPUz was showing 3.15GHz while under load?

1.24 I think it is whatever is newest on their website. And yes I ran OCCT with CPU-Z open and it maxed out at 3.15...

1.45 is the newest avai