I would suggest you to lower your vtt, since 1.45 is known to kill 45nm's

Anyway try this


FSB VTT: 1.30v


GTL Ref Voltage Control : Enable
CPU GTL 1/2 Ref Volt : 93
CPU GLT 0/3 Ref Volt : 90
North Bridge GTL Ref Volt : 72

i'll give it a try

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Added on December 30, 2008, 3:55 pmpc hangs at loading screen D:
tried it both with 438fsb and 450 fsb..
im think of hitting a fsb wall here or a bad chip xD

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Added on December 30, 2008, 4:33 pmfinally got it too boot at windows thou i have to disable the GTL REF Voltage Control thingy
these are the current voltages im using right now

set the FSB:RAM ratio to 1:1 (RAM @ 880mhz right now 5-5-5-15 2T Timings)
FSB: 440
Multiplier: 8
CPU Clock: 440 x 8 = 3.52ghz

CPU VID : 1.3v (cpu-z and bios reading shows at 1.328 - 1.344v)
CPU VID Special Limit : Enable
CPU VID Special Add Limit : Auto
NB Core Voltage : 1.6v (D: too high??)
SB Core: 1.51v(default)
RAM VDIMM = 2.0v
FSB VTT: 1.3v


opinions?? is it safe to run 24/7 on this?? temperature reports barely any increases thou (using DFI Smartguardian to check System and chipset temperature)

havent run any stress test yet ..




This post has been edited by reiben05: Dec 30 2008, 04:33 PM

have read a review that x48 a bit low in oc compare to p45..not sure that right or wrong...but yours vnb quite high for me..mine just set to 1.19..vtt 1.24..dont know if that suite yours proc..

hmm okay .. system crashed anyway after running test for 50 seconds lol -.-".. had to pumped the vidd to 1.325v in bios (reading in cpu-z and bios was 1.36v) and ran the test, the system was quite stable for 20mins but i decided to cancel it since temperatures were too high 66C max.. while at 3.4ghz only 60C was max >.< " o yeah the x48 is a bit harder to OC compare to the p45 boards sigh*

66c @ 1.325v? that's an awesome temperature and vcore bro. Most of us here will only stop if it is exceeding 70c and 1.4v

yea but 1.6V on NB XD? thats high lol

hello ! finally lol!

good luck overclocking your Q9400
i only managed to get 3.52ghz with the proc stable T_T, hope you can do better!


This post has been edited by huzai: Dec 30 2008, 10:39 PM

lol, the processor not yet reach the limit, gogo OC more
btw, i guess 1.6v on x48 is normal, not high
and 66c isnt high at all, my q9450 4ghz prime at 75c

1.6v on x48 is normal?? so does that apply the same to x38? coz they said x48 is basically cherry picked x38 right?

yea, x38 and x48 can handle higher voltage than p45 on 24/7

this thread is making me feel like OCing my future rig... Q9450..

not completed yet.. just bought the proc and HSF only

Yep I had a Maximus Formula that i was running at 1.69Vnb just to get 450FSB haha.
Crazy voltage compared to P45, my old Tpower would do 500FSB on ~1.4 Vnb..

im facing this kind of problem right now,
i've overclocked to 450fsb and adjusting everything back, but i do have the same preset for 440fsb which is stable, run prime,occt,ibt passed
and then, when i reload the 440fsb preset back, all of those program crash,failed,windows reboot, not stable at all

i wonder why.. damn it man!

Guys. Just wanna make sure. Vnb is MCH voltage right? Not fsb voltage or vtt right?

correct

anyone got the setting for 500fsb x9 4.5ghz for dualcore stable?
can share out?
thx

This post has been edited by hengmy: Dec 31 2008, 01:01 PM

might be a sign of proc degradation?

are u using ibt very often?

Intel Core 2 Quad Q9450 @ 4.00GHz

Hey hengmy, meet ur arch rival, acecombat. too bad ace alrdy sold her q9450, otherwise we'll see more insane oc'ing of the q9450

proc degradation?

not very often.. but i ran 4 times before, 2 = 10 loops pased, 2 = 20 loops passed
now all gone.. T_T